CN109188556B - A kind of Seafloor Sulfide method of prospecting based on terrain analysis - Google Patents
A kind of Seafloor Sulfide method of prospecting based on terrain analysis Download PDFInfo
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Abstract
The Seafloor Sulfide method of prospecting based on terrain analysis that the invention discloses a kind of includes the following steps: step 1: selection ore prospect area；Step 2: collecting ore prospect area terrain data, draw bottom relief map；Step 3: bottom relief map being analyzed, planning and designing sample erect-position；Step 4: the sediment sample of erect-position position is sampled in obtaining step 3；Step 5: identification for placer mineral and main trace element analysis being carried out to sediment sample, draw seabed heavy mineral dispersion halo figure and geochemical halo figure；Step 6: analysis being overlapped to seabed heavy mineral dispersion halo figure and geochemical halo figure, Combining with terrain analysis delineation is at mine Favorable Areas.Innovation is optimized to the setting of Seafloor sediment sampling erect-position in the method for the present invention, and the setting of sampling erect-position is more rationally effective；In conjunction with heavy mineral and geochemical method, lying concealed sulfide and secondary enrichment of ore-forming to inactive hot fluid area has better Effect on Detecting；Relative to other methods, cost is relatively low.
Description
Technical field
The present invention relates to a kind of Seafloor Sulfide method of prospecting based on terrain analysis guidance more particularly to a kind of utilization ground
Conformal analysis result carrys out design planning deposit sampling erect-position, and the seabed vulcanization for combining placer mineral and geochemical analysis to carry out
Object synthetical exploration of blind.
Background technique
21 century is that the century of ocean, especially China and International Sea-Bed Authority have signed metal more than first part in the world
Sulfide exploration contract, the Second Institute of Oceanograghy,SOA have organized multiple flight numbers progress contract area more as exploiting entity
Metal sulfide investigation and prospecting achieves a series of achievements.
It is past during the decade, the mainly presence by water body extremely to judge hydrothermal activity.It is MAPR turbidity survey meter, each
The kind equipment such as water body chemical sensor and grab bucket are widely used in ocean expedition, improve investigation efficiency.But looking for mine angle
For degree, water body abnormality detection is a kind of indirect detection means, can only react hydrothermal activity there are a possibility that.Even by heat
Turbidity caused by liquid activity is abnormal, due to the diffusion phenomena of hydrothermal solution plumage, has certain limitation to the instruction of hydrothermal solution zone position,
It is even more impossible to indicate secondary enrichment of ore-forming phenomenon.Mine demand is looked in contract area, us is needed to explore more directly, towards sulfide mine
Change the method for prospecting in area.
Such as transient electromagnetic, natural potential geophysical method is developed, but because at sea carries out that miner is looked for make
Do not have the convenience of land, geophysical method, which is applied, generally requires to spend on ocean high cost, and some
The method of land maturation can not indiscriminately imitate use, and the particular surroundings for seabed is needed to propose new improvement.The lower mine of expense
Object and geochemical prospecting method have its unique superiority in seabed, and especially existing scientific research is also required to grab
The equipment that struggles against obtains sample, improves the utilization rate of existing equipment and the cost saved is a big advantage of the method.But it faces at present
Main problem be that can not accomplish landwards the same rule mesh sampling, marine sediment sampling erect-position setting for reasons of cost
Less, rationally efficient sampling erect-position planning is of great significance in this case, this just proposes newly erect-position setting method
Requirement, especially there is no corresponding theory to make guidance in mid-oceanic ridge region with a varied topography, mid-oceanic ridge region using ground
Geochemistry and placer mineral method delineation mining area face new challenges.It is analyzed from the open source information of retrieval, at present without maturation
The deposit sampling erect-position setting that technical method instructs in Seafloor Sulfide exploration, and combine placer mineral and geochemistry side
Method carries out integrated exploration.
Summary of the invention
In view of the above-mentioned deficiencies in the prior art, it is an object of the present invention to which providing a kind of sulfide suitable for seabed looks for mine side
Method solves the above problem in the prior art to look for miner to make new exploration in seabed.Under prior art conditions, it
With biggish investigative range, and there is efficient, convenient and fast advantage.
To achieve the above object, the present invention adopts the following technical scheme: a kind of Seafloor Sulfide based on terrain analysis is looked for
Mine method, includes the following steps:
Step 1: selection ore prospect area；
Step 2: collecting ore prospect area terrain data, draw bottom relief map；
Step 3: after carrying out the filling of grid depression to bottom relief map, simulating sea with traffic analysis tool using GIS flow direction
Bottom sediment migration pathway generates bottom sediment migration pathway figure；Grade classification, arrow are carried out to bottom sediment migration pathway
The tie point between each grade migration pathway branch is identified after quantization, is carried out deposition basin domain using the watershed GIS tool and is divided, it is raw
At sea-bottom deposit basin domain figure；Ore prospect area bottom relief map depth value is multiplied into negative one, seabed reversion landform is obtained, to reversally
Shape uses sea-bottom deposit basin domain drawing drawing method, obtains seabed plot distribution map；In conjunction with ore prospect area underflow direction, planning is set
Meter sampling erect-position；
The bottom sediment migration pathway figure refers to the principle migrated according to deposit from eminence toward lower, to landform into
The seabed cheuch that row is analyzed and identified is distributed, and is the channel that bottom sediment collects and migrates；
Sea-bottom deposit basin domain figure refer to bottom sediment migration pathway carry out grade classification after, each migration pathway
The source region that deposit corresponding to branch collects is a series of basins being divided by ridge line；
The concept of seabed plot distribution map is with sea-bottom deposit basin domain figure on the contrary, being a series of to be separated by seabed cheuch
High landform, be after integrally inverting bottom relief map, then the seahigh shape point obtained with seabed basin domain drawing drawing method
Cloth；
Step 4: sample house site in step 3 carries out geological sampling, obtains sediment sample；
Step 5: identification for placer mineral and main trace element analysis being carried out to the sediment sample that step 4 obtains, according to sea
Bottom hydrothermal origin background chooses mineralogy indicators and element index, draws seabed heavy mineral dispersion halo figure and geochemical halo figure；
Step 6: analysis, Combining with terrain analysis delineation are overlapped to seabed heavy mineral dispersion halo figure and geochemical halo figure
At mine Favorable Areas.
Further, the method for drafting of the figure of bottom sediment migration pathway described in step 3 specifically: to ore prospect area
Bottom relief map is analyzed and processed, and carries out depression filling to landform grid based on GIS method, and extract flow direction and flow, root
Bottom sediment migration pathway figure is generated according to flow threshold, figure instruction bottom sediment collects direction, is that planning deposit takes
The important evidence of sample erect-position.
Further, the method for drafting of the domain of sea-bottom deposit basin described in step 3 figure specifically: migrate to bottom sediment logical
Road figure carries out channel grade division, identifies the tie point position of each channel branch after vector quantization using break turning point tool, makes
Deposition basin domain is carried out with watershed tool to divide, generates ore prospect area sea-bottom deposit basin domain figure, which indicates that each seabed is heavy
Product object migration pathway deposit collect source region, be a series of basins being divided by ridge line, to sampling erect-position planning and at
The delineation of mine Favorable Areas is of great significance.
Further, the method for drafting of the distribution map of seabed plot described in step 3 specifically: by ore prospect area seabed
The depth value of shape figure integrally multiplies negative one, obtains the seabed reversion landform of ore prospect area, uses sea-bottom deposit basin to reversion landform
Domain drawing drawing method obtains seabed plot distribution map, and the concept and sea-bottom deposit basin domain figure of the figure are on the contrary, be a series of by seabed
The high topography profile that cheuch is separated into, guidance sampling erect-position planning and the delineation at mine Favorable Areas.
Further, sampling erect-position choosing method described in step 3 specifically follows following principle:
(1) design of sampling erect-position should be distributed in more deposition basin domains as far as possible；
(2) sampling erect-position coastal bottom sediment migrating channels two sides are nearby laid；
(3) erect-position setting should be along seabed boundary of land block, and along underflow updrift side side；
Further, the dispersion halo drawing drawing method of seabed heavy mineral described in step 5 specifically: each sampling erect-position is deposited
Object sample carries out identification for placer mineral and quantity statistics, reselection effectively indicate that the mineralogy indicators of submarine hydrothermal activity are united
Meter, the mineralogy indicators include heavy sand total amount, chalcopyrite number, pyrite number, zincblende number, anhydrite number, weight crystalline substance
Stone number and zoisite class mineral number carry out interpolation processing to different minerals index according to statistical result respectively, draw a series of
Seabed heavy mineral dispersion halo figure.
Further, geochemical halo drawing drawing method described in step 5 specifically: to each sampling erect-position sediment sample
Main trace element analysis is carried out, the element index according to analysis result selection effectively instruction hydrothermal activity carries out interpolation, draws one
The geochemical halo figure of series；The element index includes w (Al+Fe+Mn)/w (Al), w (Fe)/w (Al), w (Fe)/w (Mn),
Wherein, w (Al) is the mass percent of Al element to w (Cu)/w (Mn), w (Zn)/w (Mn), and w (Fe) is the quality hundred of Fe element
Divide ratio, it is the mass percent of Cu element that w (Mn), which is the mass percent w (Cu) of Mn element, and w (Zn) is the quality hundred of Zn element
Divide ratio, w (Al+Fe+Mn) is the sum of Al element, Fe element and mass percent of Mn element.
Further, the dispersion halo figure of seabed heavy mineral described in step 6 and geochemical halo figure overlay analysis method are specific
Are as follows: each geochemical halo figure and each seabed heavy mineral dispersion halo figure are overlapped, identify stack result peak position, in conjunction with
Terrain analysis is drawn a circle to approve into mine Favorable Areas.
Further, following several points are considered as at the delineation of mine Favorable Areas described in step 6:
(1) overlay analysis result peak position is corresponding at mine Favorable Areas；
(2) terrain analysis is considered as at the delineation of mine Favorable Areas as a result, it is possible to extend in deposition basin domain；
(3) hot fluid area is not necessarily corresponded at mine Favorable Areas, it may be possible to be formed by the secondary enrichment of deposit；
(4) if overlay analysis result peak position is located at bottom sediment migration pathway, indicate that deposit is secondary
Enrichment at mine Favorable Areas；If overlay analysis result peak position is located at outside bottom sediment migration pathway, seahigh
At shape development, then indicate that submarine hydrothermal solution area exists；
(5) hot fluid area often forms the high landform in part, can refer to seabed plot figure and is analyzed.
As described above, the Seafloor Sulfide method of prospecting provided by the invention based on terrain analysis, has following
The utility model has the advantages that
(1) aiming at the problem that setting of submarine sampling erect-position encounters, the present invention proposes that sea-floor relief analysis and guidance samples erect-position
Planning, so that sampling erect-position layout is more rationally efficient；
Sea-bottom deposit basin domain figure that (2) delineation in the present invention at mine Favorable Areas is drawn with reference to terrain analysis and seabed
Block distribution map has higher reasonability and confidence level；
(3) for traditional water body Anomaly investigation method, the method for the present invention is directly facing ore-forming element and placer mineral, to sea
Bottom sulfide explores more targeted, accuracy, reliability；
(4) a large amount of survey datas that previous work can be made full use of to accumulate；
(5) relatively conventional geophysics and physical oceanography method, the sampling erect-position before the method for the present invention sampling are designed and are adopted
Test after sample, analysis work groundwork are all completed in laboratory, and Potential Working Time For Operation At Sea is shorter, save expense and manpower at
This；
(6) traditional water body Anomaly investigation method has limitation for the detection of inactive hot fluid area, and the method for the present invention passes through
The overlay analysis of seabed heavy mineral dispersion halo figure and geochemical halo figure lies concealed sulfide and secondary enrichment to inactive hot fluid area
There is better Effect on Detecting at mine.
Detailed description of the invention
Fig. 1 is that the present invention carries out implementation process flow chart.
Fig. 2 is the bottom sediment migration expectation figure in present invention progress implementation process.
Fig. 3 is the sea-bottom deposit basin domain figure in present invention progress implementation process.
Fig. 4 is the seabed plot distribution map in present invention progress implementation process.
Fig. 5 is the seabed heavy mineral dispersion halo figure in present invention progress implementation process.
Fig. 6 is the geochemical halo figure in present invention progress implementation process.
Specific embodiment
Institute's embodiments of the present invention, art technology is discussed in detail with reference to the accompanying drawing and by specific specific example
Personnel can be readily appreciated that implementation steps and effect and advantage of the invention according to description.The present invention is equally applicable for sea
Bottom is other kinds of to be looked in miner's work, and technical staff can be according to different application scene, without departing from the premise in the spirit of the present invention
Every details place of doing is adjusted, such as acquisition modes, precision of terrain data of all data etc..It needs to explain,
The details adjustment that anyone skilled in the art are made within the scope of the claims belongs to protection category of the invention.
The process signal of Fig. 1 is please referred to, the present invention provides a kind of Seafloor Sulfide method of prospecting based on terrain analysis, wraps
Include following steps:
Step 1: selection ore prospect area；
Step 2: collecting ore prospect area terrain data, and work out bottom relief map；
Step 3: processing analysis being carried out to sea-floor relief, carries out the filling of grid depression using GIS method, with flow direction and flow
Analysis tool simulated sea bottom Sediment transport channel generates bottom sediment migration pathway figure；To bottom sediment migration pathway
Grade classification is carried out, the tie point between each grade migration pathway branch is identified after vector quantization, is carried out using the watershed GIS tool
It deposits basin domain to divide, generates sea-bottom deposit basin domain figure；Ore prospect area bottom relief map depth value is multiplied into negative one, it is anti-to obtain seabed
Turn landform, seabed plot distribution map is arrived with sea-bottom deposit basin domain drawing drawing method to reversion landform；In conjunction with the region bottom
Direction is flowed, planning and designing sample erect-position；
The sea-floor relief analysis method mentioned in step 3 specifically:
(1) bottom sediment migration pathway drawing drawing method: ore prospect area bottom relief map is analyzed and processed, base
Depression filling is carried out to landform grid in GIS method, and extracts flow direction and flow, simulation speculates the migration of large scale bottom sediment
Channel, sets flow threshold as 500, i.e. generation bottom sediment migration pathway figure, which is according to deposit from eminence toward low
The principle for locating migration, the seabed cheuch analyzed landform and identified are distributed, and are that bottom sediment collects and migrates logical
Road, instruction bottom sediment collect direction, are the important evidences for planning deposit sampling erect-position.
(2) channel grade division, vector sea-bottom deposit basin domain figure analysis method: are carried out to bottom sediment migration pathway figure
The tie point position for being identified each channel branch after change using break turning point tool is carried out deposition basin domain using watershed tool and drawn
Point, ore prospect area sea-bottom deposit basin domain figure is generated, which indicates that the deposit of each bottom sediment migration pathway collects source
Area is of great significance to the planning of sampling erect-position and at the delineation of mine Favorable Areas.
(3) seabed plot figure analysis method: the depth value of ore prospect area bottom relief map is integrally multiplied into negative one, is obtained into
The seabed of mine prospective area inverts landform, carries out deposition basin domain analysis to reversion landform and obtains seabed plot distribution map, which is
The distribution of seahigh shape obstructs the region underflow and Sediment transport, guidance sampling erect-position planning and the delineation at mine Favorable Areas.
(4) comprehensive analysis bottom sediment migration pathway figure, sea-bottom deposit basin domain figure, seabed plot distribution map, and combine
Optimal sampling erect-position layout is chosen in the regional background underflow direction that submarine anchor system observation obtains.
Sampling erect-position choosing method described in step 3 specifically follows following principle:
(1) design of sampling erect-position should be distributed in more deposition basin domains as far as possible；
(2) sampling erect-position coastal bottom sediment migration pathway two sides are nearby laid；
(3) setting of sampling erect-position should be along seabed boundary of land block, and along underflow updrift side side.
In this embodiment, bottom sediment migration pathway figure, sea-bottom deposit basin domain figure, seabed plot distribution map difference
As shown in Figure 2, Figure 3, Figure 4.
Step 4: carrying out TV grab sample at sampling erect-position in step 3, obtain sediment sample；
Step 5: identification for placer mineral and main trace element analysis being carried out to the sediment sample that step 4 obtains, according to sea
Bottom hydrothermal origin background chooses mineralogy indicators and element index, draws seabed heavy mineral dispersion halo figure and geochemical halo figure；
The dispersion halo figure of seabed heavy mineral described in step 5 and geochemical halo drawing drawing method specifically:
(1) identification for placer mineral is carried out to each sampling erect-position sediment sample and quantity statistics, reselection effectively indicates sea
The mineralogy indicators of bottom hydrothermal activity are counted, the mineralogy indicators include heavy sand total amount, chalcopyrite number, pyrite number,
Zincblende number, anhydrite number, barite number and zoisite class mineral number, according to statistical result to different minerals index point
Not carry out interpolation processing, draw a series of seabed heavy mineral dispersion halo figure；
(2) main trace element analysis is carried out to each sampling erect-position sediment sample, according to analysis result selection effectively instruction
The element index of hydrothermal activity carries out interpolation, draws a series of geochemical halo figure；The element index includes w (Al+Fe+
Mn)/w (Al), w (Fe)/w (Al), w (Fe)/w (Mn), w (Cu)/w (Mn), wherein, w (Al) is Al element to w (Zn)/w (Mn)
Mass percent, w (Fe) be Fe element mass percent, w (Mn) is that the mass percent w (Cu) of Mn element is Cu element
Mass percent, w (Zn) be Zn element mass percent, w (Al+Fe+Mn) be Al element, Fe element and Mn element matter
Measure the sum of percentage.
In this embodiment, seabed heavy mineral dispersion halo figure, geochemical halo figure difference are as shown in Figure 5, Figure 6.
Step 6: in conjunction with heavy sand method and geochemical method, to seabed heavy mineral dispersion halo figure and geochemical halo figure into
Row superposition, with reference to the analysis of step 3 mesorelief as a result, comprehensive analysis and drawing a circle to approve mining area,；
The dispersion halo figure of seabed heavy mineral described in step 6 and geochemical halo figure comprehensive analysis method specifically: to various regions
The dizzy figure of Geochemistry and each seabed heavy mineral dispersion halo figure are overlapped, and identify stack result peak position, Combining with terrain analysis
Draw a circle to approve into mine Favorable Areas.
Following several points are considered as at the delineation of mine Favorable Areas described in step 6:
(1) overlay analysis result peak position is corresponding at mine Favorable Areas；
(2) terrain analysis is considered as at the delineation of mine Favorable Areas as a result, it is possible to extend in deposition basin domain；
(3) hot fluid area is not necessarily corresponded at mine Favorable Areas, it may be possible to be formed by the secondary enrichment of deposit；
(4) if overlay analysis result peak position is located at bottom sediment migration pathway, indicate that deposit is secondary
Enrichment at mine Favorable Areas；If overlay analysis result peak position is located at outside bottom sediment migration pathway, seahigh
At shape development, then indicate that submarine hydrothermal solution area exists；
(5) hot fluid area often forms the high landform in part, can refer to seabed plot figure and is analyzed.
Above-described embodiment is merely illustrative technical solution of the present invention, technical staff can according to different application scene,
Every details place of doing is adjusted under the premise of without departing substantially from spirit of that invention.The scope of the present invention should regard claim model
Subject to enclosing.
Claims (9)
1. a kind of Seafloor Sulfide method of prospecting based on terrain analysis, which comprises the steps of:
Step 1: selection ore prospect area；
Step 2: collecting ore prospect area terrain data, draw bottom relief map；
Step 3: heavy using GIS flow direction and traffic analysis tool simulated sea bottom after carrying out the filling of grid depression to bottom relief map
Product object migration pathway, generates bottom sediment migration pathway figure；Grade classification, vector quantization are carried out to bottom sediment migration pathway
The tie point between each grade migration pathway branch is identified afterwards, is carried out deposition basin domain using the watershed GIS tool and is divided, generates sea
Bottom sediments basin domain figure；Ore prospect area bottom relief map depth value is multiplied into negative one, obtains seabed reversion landform, then to reversion landform
With sea-bottom deposit basin domain drawing drawing method, seabed plot distribution map is obtained；In conjunction with ore prospect area underflow direction, planning and designing
Sample erect-position；
The bottom sediment migration pathway figure refers to the principle migrated according to deposit from eminence toward lower, divides landform
The seabed cheuch distribution analysed and identified, is the channel that bottom sediment collects and migrates；
Sea-bottom deposit basin domain figure refer to bottom sediment migration pathway carry out grade classification after, each migration pathway branch
The source region that corresponding deposit collects is a series of basins being divided by ridge line；
The concept and sea-bottom deposit basin domain figure of seabed plot distribution map are on the contrary, be a series of height being separated by seabed cheuch
Landform is after integrally inverting bottom relief map, then is distributed with the seahigh shape that seabed basin domain drawing drawing method obtains；
Step 4: sample house site in step 3 carries out geological sampling, obtains sediment sample；
Step 5: identification for placer mineral and main trace element analysis being carried out to the sediment sample that step 4 obtains, according to seabed heat
Liquid origin cause of formation background chooses mineralogy indicators and element index, draws seabed heavy mineral dispersion halo figure and geochemical halo figure；
Step 6: analysis being overlapped to seabed heavy mineral dispersion halo figure and geochemical halo figure, Combining with terrain analysis delineation is at mine
Favorable Areas.
2. the Seafloor Sulfide method of prospecting according to claim 1, it is characterised in that: bottom sediment described in step 3
The method for drafting of migration pathway figure specifically: ore prospect area bottom relief map is analyzed and processed, over the ground based on GIS method
Shape grid carries out depression filling, and extracts flow direction and flow, generates bottom sediment migration pathway figure according to flow threshold；The figure
Instruction bottom sediment collects direction, is the important evidence for planning deposit sampling erect-position.
3. the Seafloor Sulfide method of prospecting according to claim 1, it is characterised in that: sea-bottom deposit basin described in step 3
The method for drafting of domain figure specifically: channel grade division is carried out to bottom sediment migration pathway figure, uses break after vector quantization
Turning point tool identifies the tie point position of each channel branch, carries out deposition basin domain using watershed tool and divides, generates into mine
Prospective area sea-bottom deposit basin domain figure；The figure indicates that the deposit of each bottom sediment migration pathway collects source region, to sample house
It plans and is of great significance at the delineation of mine Favorable Areas in position.
4. the Seafloor Sulfide method of prospecting according to claim 1, it is characterised in that: seabed plot described in step 3 point
The method for drafting of Butut specifically: the depth value of ore prospect area bottom relief map is integrally multiplied into negative one, obtains ore prospect area
Seabed invert landform, with sea-bottom deposit basin domain drawing drawing method seabed plot distribution map is obtained to reversion landform；The figure refers to
Show that seahigh shape is distributed, guidance sampling erect-position planning and the delineation at mine Favorable Areas.
5. the Seafloor Sulfide method of prospecting according to claim 1, it is characterised in that: the choosing of sampling erect-position described in step 3
Method is taken specifically to follow following principle:
(1) design of sampling erect-position should be distributed in more deposition basin domains as far as possible；
(2) sampling erect-position coastal bottom sediment migration pathway two sides are nearby laid；
(3) setting of sampling erect-position should be along seabed boundary of land block, and along underflow updrift side side.
6. the Seafloor Sulfide method of prospecting according to claim 1, it is characterised in that: seabed heavy mineral described in step 5
Dispersion halo drawing drawing method specifically: identification for placer mineral and quantity statistics are carried out to each sampling erect-position sediment sample, then selected
Select effectively instruction submarine hydrothermal activity mineralogy indicators counted, the mineralogy indicators include heavy sand total amount, chalcopyrite number,
Pyrite number, zincblende number, anhydrite number, barite number and zoisite class mineral number, according to statistical result to not
Interpolation processing is carried out respectively with mineralogy indicators, draws a series of seabed heavy mineral dispersion halo figure.
7. the Seafloor Sulfide method of prospecting according to claim 1, it is characterised in that: geochemical halo described in step 5
Drawing drawing method specifically: main trace element analysis is carried out to each sampling erect-position sediment sample, is had according to analysis result selection
The element index of effect instruction hydrothermal activity carries out interpolation, draws a series of geochemical halo figure；The element index includes w
(Al+Fe+Mn)/w (Al), w (Fe)/w (Al), w (Fe)/w (Mn), w (Cu)/w (Mn), w (Zn)/w (Mn), wherein w (Al) is
The mass percent of Al element, w (Fe) are the mass percent of Fe element, and w (Mn) is the mass percent of Mn element, w (Cu)
For the mass percent of Cu element, w (Zn) is the mass percent of Zn element, and w (Al+Fe+Mn) is Al element, Fe element and Mn
The sum of mass percent of element.
8. the Seafloor Sulfide method of prospecting according to claim 1, it is characterised in that: seabed heavy mineral described in step 6
Dispersion halo figure and geochemical halo figure overlay analysis method specifically: to each geochemical halo figure and each seabed heavy mineral dispersion halo
Figure is overlapped, and identifies stack result peak position, Combining with terrain analysis delineation is at mine Favorable Areas.
9. the Seafloor Sulfide method of prospecting according to claim 1, it is characterised in that: at mine Favorable Areas described in step 6
Delineation is considered as following several points:
(1) overlay analysis result peak position is corresponding at mine Favorable Areas；
(2) terrain analysis is considered as at the delineation of mine Favorable Areas as a result, it is possible to extend in deposition basin domain；
(3) hot fluid area is not necessarily corresponded at mine Favorable Areas, it is also possible to be formed by the secondary enrichment of deposit；
(4) if overlay analysis result peak position is located at bottom sediment migration pathway, the secondary enrichment of deposit is indicated
At mine Favorable Areas；If overlay analysis result peak position is located at outside bottom sediment migration pathway, at seahigh shape,
It then may indicate that submarine hydrothermal solution area exists；
(5) hot fluid area often forms the high landform in part, can refer to seabed plot figure and is analyzed.
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| PCT/CN2019/101248 WO2020042940A1 (en) | 2018-08-28 | 2019-08-18 | Seabed sulfide ore prospecting method based on topographic analysis |
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| CN109188556B (en) * | 2018-08-28 | 2019-08-09 | 国家海洋局第二海洋研究所 | A kind of Seafloor Sulfide method of prospecting based on terrain analysis |
| GB2583906B (en) * | 2019-04-29 | 2022-01-19 | Equinor Energy As | Method of estimating a mineral content of a geological structure |
| CN110286412B (en) * | 2019-07-02 | 2021-01-19 | 自然资源部第二海洋研究所 | Transient electromagnetic-carrying seabed natural potential detection and interference correction method |
| CN110888180B (en) * | 2019-12-04 | 2022-04-01 | 自然资源部第二海洋研究所 | Method for identifying midridge hydrothermal area in ocean based on geochemical characteristics of sediments |
| CN111044600A (en) * | 2019-12-30 | 2020-04-21 | 核工业北京地质研究院 | Elemental geochemical method for identifying ore body center of sodium-assisted uranium deposit |
| CN111259524B (en) * | 2020-01-09 | 2024-04-16 | 自然资源部第二海洋研究所 | Submarine hydrothermal area sediment distribution simulation method based on topographic data |
| CN111487690B (en) * | 2020-05-07 | 2021-11-09 | 中南大学 | Mineral exploration method using sediment fan model as seabed jet flow sediment deposit |
| CN112379461B (en) * | 2020-10-29 | 2023-06-27 | 自然资源部第二海洋研究所 | Method for defining exploration reserved area of deep sea polymetallic sulfide resource |
| CN114459805B (en) * | 2022-02-16 | 2023-01-31 | 山东省地质矿产勘查开发局第六地质大队(山东省第六地质矿产勘查院) | Gold mine prospecting device and method suitable for basin edge region |
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| CN103389076A (en) * | 2013-07-24 | 2013-11-13 | 国家海洋局第二海洋研究所 | Submarine topography change detection and analysis method based on mesh reconstruction |
| CN107608006A (en) * | 2017-08-08 | 2018-01-19 | 国家海洋局第二海洋研究所 | A kind of submarine hydrothermal solution sulfide Resources Assessment Method |
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| CN100373378C (en) * | 2006-01-14 | 2008-03-05 | 中国海洋大学 | Exploration data processing and information managing method for submarine hydrothermal activity |
| DE102009032098A1 (en) * | 2009-07-03 | 2011-01-05 | Noyem Kg | Method for geological exploration of raw material deposits |
| CN103605168B (en) * | 2013-10-12 | 2015-12-09 | 国家海洋局第二海洋研究所 | The quick method of prospecting of a kind of seabed Polymetallic sulphide integrated information |
| CN109188556B (en) * | 2018-08-28 | 2019-08-09 | 国家海洋局第二海洋研究所 | A kind of Seafloor Sulfide method of prospecting based on terrain analysis |
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| CN102819568A (en) * | 2012-07-18 | 2012-12-12 | 哈尔滨工程大学 | Submarine topography data establishment method based on topographical sampling point positions |
| CN103389076A (en) * | 2013-07-24 | 2013-11-13 | 国家海洋局第二海洋研究所 | Submarine topography change detection and analysis method based on mesh reconstruction |
| CN107608006A (en) * | 2017-08-08 | 2018-01-19 | 国家海洋局第二海洋研究所 | A kind of submarine hydrothermal solution sulfide Resources Assessment Method |
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