CN114397422B - Method for calculating element mobility in sandstone type uranium deposit clay mineral formation process - Google Patents
Method for calculating element mobility in sandstone type uranium deposit clay mineral formation process Download PDFInfo
- Publication number
- CN114397422B CN114397422B CN202111526735.4A CN202111526735A CN114397422B CN 114397422 B CN114397422 B CN 114397422B CN 202111526735 A CN202111526735 A CN 202111526735A CN 114397422 B CN114397422 B CN 114397422B
- Authority
- CN
- China
- Prior art keywords
- sandstone
- grant
- uranium
- elements
- mobility
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 229910052770 Uranium Inorganic materials 0.000 title claims abstract description 58
- JFALSRSLKYAFGM-UHFFFAOYSA-N uranium(0) Chemical compound [U] JFALSRSLKYAFGM-UHFFFAOYSA-N 0.000 title claims abstract description 58
- 238000000034 method Methods 0.000 title claims abstract description 45
- 230000008569 process Effects 0.000 title claims abstract description 29
- 239000002734 clay mineral Substances 0.000 title claims abstract description 21
- 230000015572 biosynthetic process Effects 0.000 title claims abstract description 18
- 230000004075 alteration Effects 0.000 claims abstract description 24
- 238000004364 calculation method Methods 0.000 claims abstract description 15
- 239000011435 rock Substances 0.000 claims description 22
- 238000004458 analytical method Methods 0.000 claims description 10
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 9
- 238000010586 diagram Methods 0.000 claims description 9
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 7
- 238000005553 drilling Methods 0.000 claims description 6
- 101000872083 Danio rerio Delta-like protein C Proteins 0.000 claims description 4
- 229910010413 TiO 2 Inorganic materials 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 3
- 238000004876 x-ray fluorescence Methods 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 2
- 238000000513 principal component analysis Methods 0.000 claims description 2
- 238000013508 migration Methods 0.000 abstract description 15
- 230000005012 migration Effects 0.000 abstract description 10
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 6
- 230000008859 change Effects 0.000 description 6
- 229910052500 inorganic mineral Inorganic materials 0.000 description 6
- 239000011707 mineral Substances 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 230000003647 oxidation Effects 0.000 description 5
- 238000007254 oxidation reaction Methods 0.000 description 5
- 238000011160 research Methods 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 230000033558 biomineral tissue development Effects 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 239000011229 interlayer Substances 0.000 description 4
- NIFIFKQPDTWWGU-UHFFFAOYSA-N pyrite Chemical compound [Fe+2].[S-][S-] NIFIFKQPDTWWGU-UHFFFAOYSA-N 0.000 description 4
- 229910052683 pyrite Inorganic materials 0.000 description 4
- 239000011028 pyrite Substances 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 238000005070 sampling Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 108700028369 Alleles Proteins 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 150000004763 sulfides Chemical class 0.000 description 2
- 229910021532 Calcite Inorganic materials 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 101001018064 Homo sapiens Lysosomal-trafficking regulator Proteins 0.000 description 1
- 102100033472 Lysosomal-trafficking regulator Human genes 0.000 description 1
- 235000010703 Modiola caroliniana Nutrition 0.000 description 1
- 244000038561 Modiola caroliniana Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 229910001919 chlorite Inorganic materials 0.000 description 1
- 229910052619 chlorite group Inorganic materials 0.000 description 1
- QBWCMBCROVPCKQ-UHFFFAOYSA-N chlorous acid Chemical compound OCl=O QBWCMBCROVPCKQ-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000005251 gamma ray Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000013316 zoning Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/24—Earth materials
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Food Science & Technology (AREA)
- Analytical Chemistry (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Medicinal Chemistry (AREA)
- Physics & Mathematics (AREA)
- Remote Sensing (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
Abstract
The invention belongs to the field of geological exploration, and particularly discloses a calculation method of element mobility in a sandstone-type uranium deposit clay mineral formation process, which comprises the following steps: step 1, dividing sandstone geochemistry into bands; step 2, sample collection; step 3, measuring principal elements; step 4, inert element selection; and 5, calculating mobility. The method can directly judge the active elements and the inactive elements in the alteration process of the sandstone-type uranium deposit, and quantitatively calculate the migration rate of each active element relative to the original sandstone.
Description
Technical Field
The invention belongs to the field of geological exploration, and particularly relates to a calculation method of element mobility in a clay mineral formation process of a sandstone-type uranium deposit.
Background
The clay minerals show a change in composition and content between geochemical zonation, and are essentially a change in element content, and microscopically show an ingress and egress of elements. In research, two ways of changing the element content are found, the first is that the element content changes, and the second is that the element content changes due to the change of the other element content. In addition, it is believed that most of the geological processes in nature occur in relatively open systems at the time of research, and when the open systems have significant mass and volume changes, it is impossible to recognize the changes in chemical composition by directly comparing the elemental content of rock before and after the occurrence of geological effects.
As well as the research on sandstone uranium deposits, the previous research on element geochemistry of an interlayer oxidation zone mainly focuses on analyzing and comparing different geochemistry zonal element contents, and few scholars consider the influence of the mass-volume change of a mineral-containing target layer on the element content.
The sandstone type uranium ore belongs to a shallow-low temperature hydrothermal deposit, meets the application requirement of a mass balance theory, so the mass balance theory is introduced this time, and the method is used for quantitatively discussing the element change rule of clay mineral evolution in each geochemistry zoning.
Disclosure of Invention
The invention aims to provide a calculation method for element mobility in the clay mineral formation process of a sandstone-type uranium deposit, which can quantitatively calculate the migration-in and migration-out degree of each element in the clay mineral formation process.
The technical scheme for realizing the purpose of the invention comprises the following steps:
a method for calculating element mobility in a sandstone-type uranium deposit clay mineral formation process, which specifically comprises the following steps:
step 1, dividing sandstone geochemistry into bands;
step 2, sample collection;
step 3, measuring principal elements;
step 4, inert element selection;
and 5, calculating mobility.
The step 1 specifically comprises the following steps: dividing sandstone into paleoxysandstone, uranium mineralized sandstone and primary sandstone according to rock color, reducing medium content and uranium element analysis; dividing ancient oxide sandstone and original sandstone by rock color; uranium mineralized sandstone is identified through reducing medium content and uranium element analysis.
The step 2 specifically comprises the following steps: and selecting typical drilling holes capable of covering the whole ore deposit, and respectively selecting samples of paleoxysandstone, uranium-mineralized sandstone and primary sandstone in a lower section core of a straight-through group of each drilling hole, wherein the lithology of the samples is blocky coarse sandstone.
The step 3 specifically comprises the following steps: cleaning the surface of the sample, crushing the sample into powder, and performing principal component analysis by using an X-ray fluorescence spectrometer.
The principal element in the step 3 comprises SiO 2 、Al 2 O 3 、CaO、FeO、Fe 2 O 3 、MgO、Na 2 O、K 2 O、MnO、TiO 2 、P 2 O 5 。
The step 4 comprises the following steps:
step 4.1, preparing Grant diagram;
step 4.2, sketching Grant equipotential lines;
and 4.3, selecting inert elements.
The step 4.1 specifically comprises the following steps: various main amounts of original sandstone and ancient oxidized sandstone and mineralized sandstone are utilizedConcentration of elemental composition C before alteration i O Concentration after alteration C i A And respectively taking the two points as X and Y coordinates to respectively prepare the graphic illustrations of paleoxysandstone-primary sandstone and uranium mineralized sandstone-primary sandstone.
The step 4.2 specifically comprises the following steps: using the formula k=m O /M A Calculating the gradient K of the Grant equipotential line, and drawing a straight line passing through the origin (0, 0) by taking the calculated K as the gradient, wherein the straight line is the Grant equipotential line.
The calculating of the gradient K of the Grant equipotential line in the step 4.2 comprises the following steps:
principal element case:
K 1 ＝M O /M A ＝C O /C A ，
wherein K is 1 Is the slope of a principal element; m is M O 、M A Rock mass before and after alteration, respectively; c (C) O 、C A The concentrations before and after the main element in the rock is changed respectively;
two or more principal element cases:
K 2 ＝M O /M A ＝∑C i O ×C i A /∑(C i A ) 2
wherein K is 2 Is the slope of two or more principal elements; m is M O 、M A Rock mass before and after alteration, respectively; c (C) i O 、C i A Is the concentration of element i in the rock before and after alteration.
The step 4.3 specifically comprises the following steps: analyzing the graphic of the paleoxysandstone-protogenic sandstone and the uranium mineralized sandstone-protogenic sandstone Grant, and selecting elements which are simultaneously positioned on the Grant equipotential lines of the graphic of the protogenic sandstone-protogenic sandstone and the graphic of the protogenic sandstone-mineralized sandstone Grant, wherein the elements are inert elements.
The mobility calculation formula in the step 5 is as follows:
△C i ＝C i A /K-C i O
wherein DeltaC i Is mobility of；
K is Grant equipotential line slope;
C i O 、C i A is the concentration of element i in the rock before and after alteration.
The beneficial technical effects of the invention are as follows:
1. the calculation method of the element mobility in the sandstone-type uranium deposit clay mineral formation process can directly judge the active elements and the inactive elements in the sandstone-type uranium deposit alteration process, and quantitatively calculate the migration rate of each active element relative to the original sandstone.
2. The migration rate of elements obtained by the calculation method of the element mobility in the sandstone-type uranium deposit clay mineral formation process can scientifically and reasonably explain the most essential reasons of mineral components and content changes in the alteration process, the minerals are all composed of elements, in sandstone-type uranium deposit, the migration and the migration of Fe element can be understood as the increase or decrease of the content of minerals such as pyrite and chlorite, the migration and the migration of Ca element can be understood as the increase or decrease of the content of calcite, further the cause mechanism of uranium deposit is more accurately explained, further a remote scenic region is predicted, and the direction of prospecting is indicated.
3. The method for calculating the element mobility in the sandstone-type uranium deposit clay mineral formation process provided by the invention covers the process from field geological observation sampling to indoor experiment and data analysis, the design method has the advantages of accurate cut-in points, grasping of the essential problem, clear sample object acquisition, analysis and test requirements and purposes, clear and reasonable formula calculation steps and strong operability.
Drawings
Fig. 1 is a flowchart of a method for calculating element mobility in a clay mineral formation process of a sandstone-type uranium deposit provided by the invention;
FIG. 2 is a graph showing discrimination of inert elements in each geochemical zonal band of a straight-line Luo group obtained by using Grant equation and Grant allele slope of a Naling ditch uranium deposit provided by the invention; wherein, fig. 2A is a graph for discriminating inert elements in the ancient oxidation zone; FIG. 2B is a uranium mineralization zone inert element discrimination diagram;
FIG. 3 is an migration-migration chart of geochemical zonal elements of a set of straight-line uranium deposits in a nano-ridge trench provided by the invention; wherein FIG. 3A is SiO 2 、Al 2 O 3 、FeO、Fe 2 O 3 Migration-migration graph; FIG. 3B is CaO, na 2 O、K 2 O migration-migration graph; FIG. 3C is MgO, mnO, P 2 O 5 Migration-migration graph.
Detailed Description
The invention is described in further detail below with reference to the drawings and examples.
As shown in fig. 1, this embodiment takes a uranium deposit in northeast portion of a erdos basin as an example, and provides a method for calculating element mobility in a clay mineral formation process of a sandstone-type uranium deposit, which specifically includes the following steps:
step 1, sandstone geochemistry zonal division
The sandstone is divided into paleoxysandstone, uranium mineralized sandstone and protosandstone according to rock color, reducing medium content (content of carbon scraps (organic matters) in the sandstone observed by hand specimens) and uranium element analysis. Dividing ancient oxide sandstone and original sandstone by rock color; uranium mineralized sandstone is identified through reducing medium content and uranium element analysis.
Through the observation of the drill core, the partition standard of the paleo-oxide sandstone and the protogenic sandstone of the Naolin uranium deposit is determined: the color of the oxidized residual sandstone is mauve or brick red, the granularity is generally fine-siltstone, the cementing degree is higher, and reducing substances such as carbon scraps, pyrite and the like are not basically seen; the sandstone of which the target layer is subjected to the secondary reduction of the oil gas in the later stage is green and grayish green, basically does not contain reducing substances such as sulfides or organic matters, generally has fine-coarse sandstone granularity, has weaker cementation degree, loose sand and little carbon dust, pyrite and other reducing substances. The construction unit of the area only reserves the secondary reduction sandstone, so that only the secondary reduction sandstone is taken as the ancient oxide sandstone. The original sandstone has grey color, high content of reducing substances such as sulfides or organic matters, wide particle size distribution range, loose sand, poor cementation degree and more reducing substances such as carbon dust and pyrite. The uranium mineralized sandstone is primarily identified through the measured value of an HD2000 gamma-ray radiometer manufactured by Beijing geology research institute of nuclear industry, and the core is generally measured in the field to be considered to contain ore when the core is more than 5 nc/kg.h; analysis and test are carried out after sampling to further determine the content of U, wherein U is generally 100 multiplied by 10 mu g/g, and the uranium mineralized sandstone is identified.
Step 2, sample collection
After the sandstone geochemistry zonation is completed, taking samples by taking a mineral deposit as a unit, selecting typical drilling holes which can cover the whole mineral deposit, namely uranium ore holes, and respectively selecting representative samples of secondary reduced sandstone, uranium mineralized sandstone and primary sandstone from a core at the lower section of a straight-rowing group of each drilling hole. The lithology of the sample is massive coarse sandstone, and the size is 3cm multiplied by 6cm multiplied by 9cm. The collected samples were numbered: ES (ES) 1 、ES 2 、ES 3 、ES 4 ，…，ES n 。
Step 3, measuring principal elements
After sampling, the obtained sample is crushed into 200 meshes of powder after removing impurities on the surface of the sample and weathered skin, 50g of the sample is sent to an analysis and test unit, and a main element SiO is carried out by using an AB104L, axios-mAX wavelength dispersion X-ray fluorescence spectrometer 2 、Al 2 O 3 、CaO、FeO、Fe 2 O 3 、MgO、Na 2 O、K 2 O、MnO、TiO 2 、P 2 O 5 Etc., and the analysis results are shown in table 1.
TABLE 1 results of principal element content measurement and analysis
| Ancient interlayer oxidation zone | Uranium mineralization zone | Primary tape | |
| SiO 2 | 70.82 | 72.24 | 72.46 |
| Al 2 O 3 | 12.92 | 12.57 | 12.96 |
| Fe 2 O 3 | 4.01 | 3.06 | 2.24 |
| FeO | 2.26 | 1.71 | 1.44 |
| CaO | 0.92 | 1.10 | 1.01 |
| Na 2 O | 1.98 | 2.10 | 2.06 |
| K 2 O | 3.43 | 3.38 | 3.42 |
| MgO | 1.53 | 1.04 | 1.19 |
| MnO | 0.06 | 0.05 | 0.03 |
| P 2 O 5 | 0.09 | 0.09 | 0.09 |
| TiO 2 | 0.47 | 0.44 | 0.44 |
Step 4, inert element selection
The interlayer oxidized sandstone is divided into paleoxysandstone, uranium mineralized sandstone and primary sandstone, and the migration quantity of each geochemical banded element relative to the primary sandstone element is calculated, so that the quantitative migration of different banded elements in the clay mineral evolution process is explained.
Step 4.1, grant illustration is made
The concentration C before the alteration of various principal element components of the original sandstone and the ancient oxidized sandstone and mineralized sandstone is utilized i O Concentration after alteration C i A Respectively taking the values of the original band element content as X axis and the values of the original band element content as Y axis as X and Y coordinates casting points, and preparing Grant diagram, wherein Grant diagram is shown in figure 2A; for uranium mineralization zone, the logarithmic value of each element content of primary zone is XAnd (3) taking the logarithmic value of each element content of the uranium mineralized zone as a Y axis, and preparing a Grant diagram, wherein the Grant diagram is shown in figure 2B.
Step 4.2, sketching Grant equipotential lines
Calculating the gradient of the Grant equipotential line, wherein the gradient formula of the Grant equipotential line is as follows:
principal element case:
K 1 ＝M O /M A ＝C O /C A ，
wherein K is 1 Is the slope of a principal element; m is M O 、M A Rock mass before and after alteration, respectively; c (C) O 、C A The concentrations before and after the main element in the rock is changed respectively;
two or more principal element cases:
K 2 ＝M O /M A ＝∑C i O ×C i A /∑(C i A ) 2
wherein K is 2 Is the slope of two or more principal elements; m is M O 、M A Rock mass before and after alteration, respectively; c (C) i O 、C i A Is the concentration of element i in the rock before and after alteration.
In this embodiment, two or more principal elements are included, so that the Grant allele line slope K of the Grant diagram of FIG. 2 2 The method comprises the following steps of: for the paleoxidation zone-primary zone rock (FIG. 2A), K 2 The calculation result is 0.9889; for uranium mineralized zone-primary zone rock (FIG. 2B), K 2 The calculation result was 0.9905.
To calculate the obtained K 1 Or K 2 For the slope, a straight line passing through the origin (0, 0) is drawn, and the straight line is the Grant equipotential line, and the Grant equipotential line is shown in FIG. 2.
Step 4.3, selecting inert elements
Grant equipotential lines are points connecting tracks of elements with the same concentration change ratio from the original rock, and inactive elements are often located on one concentration equipotential line. The inactive elements (inert elements) of the ancient oxidized sandstone and mineralized sandstone relative to the original sandstone are comprehensively analyzed. As shown in fig. 2, the paleo-sandstone-proto-sandstone and uranium mineralized-proto-sandstone Grant schemes (fig. 2A is the paleo-sandstone-proto Grant scheme, fig. 2B is the uranium mineralized-sandstone Grant scheme) are analyzed, and elements on Grant equipotential lines of the proto-sandstone-paleo-sandstone and proto-sandstone-mineralized-sandstone Grant schemes are selected, namely, suitable inert elements (inactive elements).
As shown in FIG. 2, tiO as an inert element 2 、SiO 2 、Al 2 O 3 、K 2 O、Na 2 O, however, is easy to cause SiO in consideration of the possibility of the ore-bearing target layer being subjected to modification of acidic or alkaline fluid during the burying process and the interlayer oxidation process 2 、Al 2 O 3 、K 2 O、Na 2 Migration and egress of O, so that TiO is finally selected 2 Is an inert element.
Step 5, mobility calculation
Inert element TiO according to step 4 2 And calculating the increment delta C obtained or lost by each geochemical zonal element relative to the original zone, and making an migration-migration graph of each geochemical zonal element of the straight-line group.
Calculating the increment DeltaC obtained or lost of each geochemical zonal relative to the elements of the primary zone according to Gresers' formula i Greers' formula is as follows:
C i A ＝M O /M A (C i O +△C i )
wherein,
C i O 、C i A the concentration of element i in the rock before and after alteration;
△C i the increment of acquisition or loss of element i relative to the primary zone for each geochemical zonal in the rock, i.e., the mobility of element i;
M O 、M A rock mass before and after alteration, respectively.
Increment DeltaC of acquisition or loss of element i in rock i The calculation formula of (2) is as follows:
△C i ＝C i A /(M O /M A )-C i O ＝C i A /K-C i O
wherein,
k is Grant equipotential line slope;
C i O 、C i A is the concentration of element i in the rock before and after alteration.
The calculation results of the delta deltac obtained or lost for each geochemical zonal relative to the elements of the primary zone are shown in table 2.
TABLE 2 calculation of delta C for the delta obtained or lost of elements of each geochemical zonal relative to the primary zone
The point of the projected point of an element above the Grant equipotential line in the Grant diagram represents that the element was obtained during the alteration or mineralization process, while the projected point below the Grant equipotential line represents that the element was lost.
As shown in fig. 3, the immigrating-immigrating characteristics of the elements in the uranium mining process can be seen very intuitively. Wherein the ancient oxidized sandstone has Fe relative to the elements which do not undergo oxidative modification and are migrated into the original sandstone 2 O 3 FeO, mgO, mnO, while the migrating element is SiO 2 、Al 2 O 3 、CaO、Na 2 O、K 2 O、P 2 O 5 The ancient oxidized sandstone is modified by early strong acidic oxidation fluid and later alkaline Fe and Mg-rich fluid; the elements of the uranium mineralized zone sandstone which are migrated relative to the primary zone sandstone are Fe 2 O 3 、FeO、CaO、Na 2 O, mnO while the migrating element is SiO 2 、Al 2 O 3 、K 2 O, mgO, it is explained that the uranium ore forming process has close relation with the formation of carbonate.
The present invention has been described in detail with reference to the drawings and the embodiments, but the present invention is not limited to the embodiments described above, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present invention. The invention may be practiced otherwise than as specifically described.
Claims (6)
1. The method for calculating the element mobility in the process of forming the clay mineral of the sandstone-type uranium deposit is characterized by comprising the following steps of:
step 1, sandstone geochemistry zonal division: dividing sandstone into paleoxysandstone, uranium mineralized sandstone and primary sandstone;
step 2, sample collection: selecting a typical borehole which can cover the whole ore deposit for sample collection;
step 3, measuring principal elements;
step 4, inert element selection;
step 5, mobility calculation;
the step 4 comprises the following steps:
step 4.1, making Grant diagram: the concentration C before the alteration of various principal element components of the original sandstone and the ancient oxidized sandstone and mineralized sandstone is utilized i O Concentration after alteration C i A Respectively taking the two points as X and Y coordinates to respectively prepare ancient oxide sandstone-original sandstone and uranium mineralized sandstone-original sandstone Grant illustrations;
step 4.2, sketching Grant equipotential lines: using the formula k=m O /M A Calculating the gradient K of the Grant equipotential line, and drawing a straight line passing through the origin (0, 0) by taking the calculated K as the gradient, wherein the straight line is the Grant equipotential line; calculating the gradient K of the Grant bit line includes:
principal element case:
K 1 ＝M O /M A ＝C O /C A ，
wherein K is 1 Is the slope of a principal element; m is M O 、M A Rock mass before and after alteration, respectively; c (C) O 、C A Respectively before and after the main element in the rock is changedConcentration;
two or more principal element cases:
K 2 ＝M O /M A ＝∑C i O ×C i A /∑(C i A ) 2
wherein K is 2 Is the slope of two or more principal elements; m is M O 、M A Rock mass before and after alteration, respectively; c (C) i O 、C i A The concentration of element i in the rock before and after alteration;
step 4.3, selecting inert elements: analyzing the graphic of the paleoxysandstone-protogenic sandstone and the uranium mineralized sandstone-protogenic sandstone Grant, and selecting elements which are simultaneously positioned on the Grant equipotential lines of the graphic of the protogenic sandstone-protogenic sandstone and the graphic of the protogenic sandstone-mineralized sandstone Grant, wherein the elements are inert elements.
2. The method for calculating the element mobility in the clay mineral formation process of the sandstone uranium deposit according to claim 1, wherein the step 1 specifically includes: dividing ancient oxide sandstone and original sandstone by rock color; uranium mineralized sandstone is identified through reducing medium content and uranium element analysis.
3. The method for calculating the element mobility in the clay mineral formation process of the sandstone uranium deposit according to claim 2, wherein the step 2 is specifically: and selecting typical drilling holes capable of covering the whole ore deposit, and respectively selecting samples of paleoxysandstone, uranium mineralized sandstone and primary sandstone in a core of each drilling hole, wherein the lithology of the samples is blocky coarse sandstone.
4. A method for calculating the mobility of elements in the clay mineral formation process of sandstone-type uranium deposit according to claim 3, wherein the step 3 is specifically: cleaning the surface of the sample, crushing the sample into powder, and performing principal component analysis by using an X-ray fluorescence spectrometer.
5. Root of Chinese characterA method for calculating the mobility of elements in the clay mineral formation process of sandstone uranium deposit according to claim 4, wherein the major elements in step 3 include SiO 2 、Al 2 O 3 、CaO、FeO、Fe 2 O 3 、MgO、Na 2 O、K 2 O、MnO、TiO 2 And P 2 O 5 。
6. The method for calculating the mobility of elements in the clay mineral formation process of a sandstone-type uranium deposit according to claim 1, wherein the mobility calculation formula in the step 5 is as follows:
△C i ＝C i A /K-C i O
wherein DeltaC i Is mobility;
k is Grant equipotential line slope;
C i O 、C i A is the concentration of element i in the rock before and after alteration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111526735.4A CN114397422B (en) | 2021-12-14 | 2021-12-14 | Method for calculating element mobility in sandstone type uranium deposit clay mineral formation process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111526735.4A CN114397422B (en) | 2021-12-14 | 2021-12-14 | Method for calculating element mobility in sandstone type uranium deposit clay mineral formation process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114397422A CN114397422A (en) | 2022-04-26 |
| CN114397422B true CN114397422B (en) | 2024-02-09 |
Family
ID=81226723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111526735.4A Active CN114397422B (en) | 2021-12-14 | 2021-12-14 | Method for calculating element mobility in sandstone type uranium deposit clay mineral formation process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114397422B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115356467B (en) * | 2022-10-19 | 2023-01-24 | 核工业北京地质研究院 | Method for determining mineralization mechanism of hydrothermal uranium ore |
| CN117572522B (en) * | 2023-11-16 | 2024-09-10 | 中国科学院广州地球化学研究所 | Method for exploring side or deep part of hydrothermal deposit |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4438077A (en) * | 1982-04-27 | 1984-03-20 | Mobil Oil Corporation | Two stage selective oxidative leach method to separately recover uranium and refractory uranium-mineral complexes |
| US7294271B1 (en) * | 2005-06-20 | 2007-11-13 | Power Resources, Inc. | Process for restoration of ground water used in in-situ uranium mining |
| US8708422B1 (en) * | 2010-04-26 | 2014-04-29 | Sandia Corporation | Inherently safe in situ uranium recovery |
| CN105510989A (en) * | 2014-10-20 | 2016-04-20 | 核工业北京地质研究院 | Research method suitable for characteristics of interlayer oxidation zone of sandstone-type uranium deposit |
| CN107678071A (en) * | 2016-08-02 | 2018-02-09 | 核工业二〇八大队 | A kind of ancient interlayer oxidized zone recognition methods of sandstone-type uranium mineralization with respect |
| CN107991331A (en) * | 2016-10-26 | 2018-05-04 | 核工业北京地质研究院 | Organic matter and the research method of uranium mobilization relation in a kind of sandstone-type uranium mineralization with respect |
| CN109580498A (en) * | 2018-12-24 | 2019-04-05 | 核工业北京地质研究院 | Oxidized zone geology recognition methods between a kind of sandstone-type uranium mineralization with respect ledge |
| CN109932365A (en) * | 2017-12-18 | 2019-06-25 | 核工业北京地质研究院 | A kind of sandrock-type uranium deposit bleach alteration band origin cause of formation and uranium mineralization relationship determine method |
| CN110019620A (en) * | 2017-12-07 | 2019-07-16 | 核工业北京地质研究院 | A kind of method of discrimination suitable for sandstone-type uranium mineralization with respect interlevel oxidation direction |
| CN110715925A (en) * | 2019-09-29 | 2020-01-21 | 核工业北京地质研究院 | Method for tracing thermal fluid activity of basin sandstone type uranium deposit |
| CN110988101A (en) * | 2019-12-11 | 2020-04-10 | 核工业北京地质研究院 | Method for identifying indicating elements in volcanic rock type uranium ore |
| CN111089873A (en) * | 2019-12-20 | 2020-05-01 | 核工业北京地质研究院 | Element mobility calculation method in hydrothermal uranium ore surrounding rock alteration process |
| CN112799149A (en) * | 2020-12-30 | 2021-05-14 | 核工业北京地质研究院 | Identification method of hydrothermal uranium mineralization center |
| CN113109889A (en) * | 2021-04-25 | 2021-07-13 | 东华理工大学 | Sandstone-type uranium ore prospecting method based on 'two-stage and two-mode' mineralization model |
| CN113534286A (en) * | 2021-06-24 | 2021-10-22 | 核工业北京地质研究院 | Method for evaluating favorable uranium mineralization section in sandstone-type uranium ore geochemical exploration |
-
2021
- 2021-12-14 CN CN202111526735.4A patent/CN114397422B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4438077A (en) * | 1982-04-27 | 1984-03-20 | Mobil Oil Corporation | Two stage selective oxidative leach method to separately recover uranium and refractory uranium-mineral complexes |
| US7294271B1 (en) * | 2005-06-20 | 2007-11-13 | Power Resources, Inc. | Process for restoration of ground water used in in-situ uranium mining |
| US8708422B1 (en) * | 2010-04-26 | 2014-04-29 | Sandia Corporation | Inherently safe in situ uranium recovery |
| CN105510989A (en) * | 2014-10-20 | 2016-04-20 | 核工业北京地质研究院 | Research method suitable for characteristics of interlayer oxidation zone of sandstone-type uranium deposit |
| CN107678071A (en) * | 2016-08-02 | 2018-02-09 | 核工业二〇八大队 | A kind of ancient interlayer oxidized zone recognition methods of sandstone-type uranium mineralization with respect |
| CN107991331A (en) * | 2016-10-26 | 2018-05-04 | 核工业北京地质研究院 | Organic matter and the research method of uranium mobilization relation in a kind of sandstone-type uranium mineralization with respect |
| CN110019620A (en) * | 2017-12-07 | 2019-07-16 | 核工业北京地质研究院 | A kind of method of discrimination suitable for sandstone-type uranium mineralization with respect interlevel oxidation direction |
| CN109932365A (en) * | 2017-12-18 | 2019-06-25 | 核工业北京地质研究院 | A kind of sandrock-type uranium deposit bleach alteration band origin cause of formation and uranium mineralization relationship determine method |
| CN109580498A (en) * | 2018-12-24 | 2019-04-05 | 核工业北京地质研究院 | Oxidized zone geology recognition methods between a kind of sandstone-type uranium mineralization with respect ledge |
| CN110715925A (en) * | 2019-09-29 | 2020-01-21 | 核工业北京地质研究院 | Method for tracing thermal fluid activity of basin sandstone type uranium deposit |
| CN110988101A (en) * | 2019-12-11 | 2020-04-10 | 核工业北京地质研究院 | Method for identifying indicating elements in volcanic rock type uranium ore |
| CN111089873A (en) * | 2019-12-20 | 2020-05-01 | 核工业北京地质研究院 | Element mobility calculation method in hydrothermal uranium ore surrounding rock alteration process |
| CN112799149A (en) * | 2020-12-30 | 2021-05-14 | 核工业北京地质研究院 | Identification method of hydrothermal uranium mineralization center |
| CN113109889A (en) * | 2021-04-25 | 2021-07-13 | 东华理工大学 | Sandstone-type uranium ore prospecting method based on 'two-stage and two-mode' mineralization model |
| CN113534286A (en) * | 2021-06-24 | 2021-10-22 | 核工业北京地质研究院 | Method for evaluating favorable uranium mineralization section in sandstone-type uranium ore geochemical exploration |
Non-Patent Citations (9)
| Title |
|---|
| a simple solution to Gresens' equation for metasomatic alteration.《Economic geology》.1986,第81卷(第8期),1976-1982. * |
| Composition-volume relationships of metasomatism;Gresens, R. L;《Chemical geology》;47-65 * |
| Grant, J. A.The isocon diagram * |
| Isocon analysis: A brief review of the method and applications;Grant, J. A;《Physics and Chemistry of the Earth, Parts A/B/C》;第30卷(第17期);997-1004 * |
| Provenance and Tectonic Setting of Lower Cretaceous Huanhe Formation Sandstones;Luo, X., Li, Z., Cai, Y., Yi, C., Zhang, Z., Zhang, Y., & Zhang, Y.;《Northwest Ordos Basin, North-Central China. Minerals》;第11卷(第12期);1-4 * |
| 中、新生代陆相沉积盆地砂岩型铀矿床流体作用研究;王果, 华仁民, 秦立峰;《高校地质学报》(第03期);70-79 * |
| 关于火山岩带中热液铀矿床形成时代和成因的同位素控制因素;N.P.Laverov;I.V.Chernyshev;V.N.Golubev;刘小宇;;世界核地质科学(第02期);14-21 * |
| 江西相山CUSD3钻孔铀矿化蚀变带元素活动性探讨;刘军港等;《地质学报》;第91卷(第4期);896~912 * |
| 沙子江铀矿外围地化特征、元素迁移及铀成矿机理;王正庆;范洪海;陈东欢;郑可志;罗桥花;刘军港;王凤岗;王勇剑;;《高校地质学报》(第02期);41-55 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114397422A (en) | 2022-04-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114397422B (en) | Method for calculating element mobility in sandstone type uranium deposit clay mineral formation process | |
| Kuehn et al. | Geology and geochemistry of wall-rock alteration at the Carlin gold deposit, Nevada | |
| Dokuz et al. | Geochemical constraints on the provenance, mineral sorting and subaerial weathering of Lower Jurassic and Upper Cretaceous clastic rocks of the eastern Pontides, Yusufeli (Artvin), NE Turkey | |
| Descourvieres et al. | Geochemical reconstruction of the provenance, weathering and deposition of detrital-dominated sediments in the Perth Basin: The Cretaceous Leederville Formation, south-west Australia | |
| Zhu et al. | Occurrence and origin of pore-lining chlorite and its effectiveness on preserving porosity in sandstone of the middle Yanchang Formation in the southwest Ordos Basin | |
| Fairey et al. | U–Pb systematics in carbonates of the Postmasburg Group, Transvaal Supergroup, South Africa: primary versus metasomatic controls | |
| CN105510989B (en) | A kind of research method suitable for sandstone-type uranium mineralization with respect interlayer oxidized zone feature | |
| Verdugo-Ihl et al. | Defining early stages of IOCG systems: evidence from iron oxides in the outer shell of the Olympic Dam deposit, South Australia | |
| Huang et al. | Geochemical characteristics of organic-rich shale, Upper Yangtze Basin: implications for the Late Ordovician–Early Silurian orogeny in South China | |
| McNulty et al. | Lithological discrimination of altered volcanic rocks based on systematic portable X-ray fluorescence analysis of drill core at the Myra Falls VHMS deposit, Canada | |
| CN115078520A (en) | Mineral geochemistry-based porphyry system mineralization evaluation method | |
| Ahmad et al. | Petrography and geochemistry of the middle jurassic Fort member sandstone, jaisalmer formation, western India: implications for weathering, provenance, and tectonic setting | |
| Makvandi et al. | Trace element signatures in hematite and goethite associated with the Kiggavik–Andrew Lake structural trend U deposits (Nunavut, Canada) | |
| Abzalov et al. | Geology of bauxite deposits and their resource estimation practices | |
| CN111089873A (en) | Element mobility calculation method in hydrothermal uranium ore surrounding rock alteration process | |
| CN113534285B (en) | Method for constructing ore-forming mode of hydrothermal thorium ore deposit | |
| Whitbread et al. | Two lithogeochemical approaches to the identification of alteration patterns at the Elura Zn-Pb-Ag deposit, Cobar, New South Wales, Australia: Use of Pearce element ratio analysis and isocon analysis | |
| Chetty | A geometallurgical evaluation of the ores of the northern Kalahari Manganese Deposit, South Africa | |
| CN115204563A (en) | Evaluation method suitable for ore exploration target layer of sandstone-type uranium ore | |
| Ashby et al. | Mineral distributions in sediments associated with the Alton Marine Band near Penistone, South Yorkshire | |
| Skublov et al. | Isotopic and Geochemical Features of Zircon from the Pizhemskoye Titanium Deposit (Middle Timan) as a Reflection of Hydrothermal Processes | |
| Baswani et al. | Petrochemical evaluation of gahnite from volcanogenic massive sulfide deposits in Betul belt, Central India: Insight from petrography and in‐situ trace element geochemistry | |
| Rowe et al. | Inorganic geochemical characteristics of lithofacies and their linkages to the mechanical stratigraphy of uppermost wolfcamp and lower Bone Spring formations, Delaware Basin, Texas | |
| McQueen et al. | An integrated lithogeochemical approach to detecting and interpreting cryptic alteration around the Elura Zn-Pb-Ag deposit, New South Wales, Australia | |
| Zandy Ilghani et al. | Application of alteration index and zoning for Pb-Znexploration in Haft-Savaran area, Khomein, Iran |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |