CN110569607B - Method for predicting position of jet deposition ore deposit hydrothermal vent - Google Patents
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Abstract
The invention discloses a method for predicting the position of a hot liquid nozzle of a jet deposition deposit, which comprises the following steps: 1. determining a mineral deposit mineralization period and a mineralization stage; 2. sequentially determining the total thickness of the ore body and the thickness of the ore body in each mineralization stage determined in the step one by a drilling, exploratory slot and underground engineering field measurement method; 3. modeling on a computer, and reducing the total thickness of the ore body and the thickness of the ore body in each mineralization stage; 4. the total thickness of ore bodies and the thickness of the ore bodies in each mineralization stage are coupled, and an abnormal area is marked; 5. carrying out preliminary correction on the position of the hydrothermal vent according to the internal structure of the ore deposit; 6. correcting the position of the hydrothermal vent again according to the mineral composition in the ore; 7. and predicting the position of the hot liquid nozzle. The method predicts the position of the hot liquid nozzle through the thickness of the ore body and the structure of the ore deposit with macroscopic indexes and the composition of the mineral with microscopic indexes, has the advantages of integrity, high efficiency, controllability, uniformity and the like, improves the condition of predicting the position of the hot liquid nozzle with single indexes, and has good prediction effect.
Description
Technical Field
The invention belongs to the technical field of ore body prediction, and particularly relates to a method for predicting the position of a hot liquid nozzle of a jet flow deposition ore deposit.
Background
Since the discovery of low-temperature subsea hot water jet deposition activity in the eastern Pacific Galapagos expansion center in 1976, jet deposition of rocks and deposits has become one of the most active fields of research in the earth science.
At present, the submarine hydrothermal vent position prediction mainly comprises the steps of collecting samples and data of seawater or spouted rocks around the vent, predicting the range of the hydrothermal vent through physical, geochemical and biological characteristic anomalies, and ensuring that the prediction method is mature; the physical characteristic prediction method mainly detects the range of a hot liquid jet orifice through the magnetism and stress direction of ores, the viscosity of jet rocks, the temperature, the salinity, the density and the transmittance of a water body, for example, dissanayake et al establish a comprehensive model of hydrodynamics, thermodynamics and deep sea hot liquid jet orifice minerals to predict the position of Tokyo, chen Qinzhu et al search the possible area of the hot liquid jet orifice through a low value area of the horizontal maximum principal stress caused by the dead weight of the hot jet orifice and the rock body; the geochemical characteristic prediction method mainly predicts the position of a hydrothermal jet orifice through the gas content, the element composition and the ion type in a water body, for example, henrik et al research the change of the gas content in hydrothermal jet rocks and put forward a qualitative prediction model of N-containing fluid after being ejected; the biological characteristic prediction method mainly judges the position of a hydrothermal jet through the enrichment degree of a hydrothermal biological community, and Zekely judges the position of the jet according to abnormal enrichment of the hydrothermal biological community in the Atlantic and the east Pacific around the jet.
The method for predicting the position of the hot fluid nozzle by researching biological fossil is still in an exploration stage, for example Yang Ruidong and the like, uses the characteristics of the biological fossil in the rock to judge the range of the hot fluid nozzle, and the method for judging the hot fluid nozzle by utilizing the biological fossil is simple and clear, but is difficult to popularize and still needs further improvement due to the influence of factors such as the content of the biological fossil, the biological activity range of the hot fluid, the transformation of later geological activity and the like.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a method for predicting the position of a hot liquid jet nozzle of a jet deposition ore deposit, which can effectively avoid the influence of factors such as biological fossil content, hot liquid biological activity range and the like, and corrects the position of the hot liquid jet nozzle by macroscopic index ore body thickness, ore body thickness and internal structure of ore deposit in each mineralization stage and mineral composition in microscopic index ore, has the advantages of integrity, high efficiency, controllability, uniformity and the like, improves the condition of single index prediction of the position of the hot liquid jet nozzle, and has good prediction effect.
Meanwhile, the influence of factors such as later geological activity transformation can be reduced.
In order to solve the technical problems, the invention adopts the following technical scheme: a method of predicting the position of a jet deposit hydrothermal vent, the method comprising the steps of:
step one, determining a mineral deposit mineralization period and a mineralization stage;
step two, determining the total thickness of the ore body and the thickness of the ore body in each mineralization stage determined in the step one sequentially through a drilling hole, a exploratory slot and a method for underground engineering field measurement;
modeling on a computer, and reducing the total thickness of the ore body and the thickness of the ore body in each mineralization stage;
step four, coupling the total thickness of the ore body and the thickness of the ore body in each mineralization stage, and dividing an abnormal region;
fifthly, carrying out preliminary correction on the position of the hot liquid nozzle according to the internal structure of the ore deposit;
step six, correcting the position of the hot liquid nozzle again according to the mineral composition in the ore;
and step seven, predicting the position of the hot liquid nozzle.
In the method for predicting the position of the hot liquid nozzle of the jet flow deposition ore deposit, when the mineralization period of the ore deposit is determined in the first step, the mineralization period is divided according to the oxidation-reduction degree, and the mineralization period is named by 1-3 mineral names or mineral types; when the mineralization stage is determined in the first step, the mineralization stage is divided according to the formation temperature of minerals as high temperature, medium temperature and low temperature, ore bodies formed in the same temperature range belong to the same mineralization stage, and the mineralization stage is named by 1-3 mineral names or mineral types; wherein the high temperature is higher than 300 ℃, the medium temperature is between 200 ℃ and 300 ℃, and the low temperature is less than 200 ℃.
In the method for predicting the position of the hot fluid jet nozzle of the jet deposition ore deposit, in the third step, modeling is performed by Auto CAD software or Arcgis software on a computer.
The method for predicting the position of the hot fluid jet nozzle of the jet deposition ore deposit is characterized by comprising the following steps of: modeling on a computer, and when the total thickness of the ore body and the thickness of the ore body in each mineralization stage are reduced, drawing thickness boundaries of each mineralization stage by taking 0.5m as a distance when the total thickness of the ore body is within 15 m; when the total thickness of the ore body is 15-25 m, the thickness boundaries of each mineralization stage are plotted with 0.8m as the interval; when the total thickness of the ore body is more than 25m, the thickness demarcation of each mineralization stage is plotted with 1.0m as a distance; when the ore thickness in different mineralization stages is within 3m, the ore thickness demarcation is plotted with 0.10m as the interval; when the thickness of the ore in different mineralization stages is 3-6 m, the ore thickness demarcation is plotted with 0.20m as the interval; when the ore thickness of the different mineralization stages is outside 6m, the ore thickness demarcation is plotted with 0.40m as the spacing.
The method for predicting the position of the hot fluid nozzle of the jet deposition ore deposit comprises the following specific steps of: the method comprises the steps of superposing and coupling the total thickness of ore bodies in an ore deposit and the thickness of the ore bodies in each mineralization stage, wherein in the coupling process, a region with the thickness change coefficient of the ore bodies larger than 0.2 is an abnormal region of the thickness of the ore bodies, and when 1 or 2 mineralization stages of thickness abnormality occurs, the abnormal region is judged to be a false abnormal region; when thickness abnormality occurs in ore body thickness in more than 3 mineralization stages, judging the abnormal region as a suspected true abnormal region.
The method for predicting the position of the hot fluid jet nozzle of the jet deposition ore deposit comprises the following specific processes of carrying out preliminary correction on the position of the hot fluid jet nozzle according to the internal structure of the ore deposit:
step 501, judging according to the distance between the abnormal area and the fault, and judging the suspected real abnormal area as a false abnormal area when the distance between the suspected real abnormal area and the nearest fault exceeds 100 m; otherwise, when the shortest fault distance between the suspected real abnormal area and the suspected real abnormal area is less than or equal to 100m, the suspected real abnormal area is also judged to be a suspected real abnormal area, and step 502 is executed;
and 502, judging according to the shape of the abnormal region, judging the suspected real abnormal region as a suspected real abnormal region when the thickness of the ore body of the suspected real abnormal region is suddenly thickened near the fault, then the thickening speed is slow, and the long axis of the ore body of the suspected abnormal region is parallel to the fault, and executing the sixth step, and judging the suspected real abnormal region as a false abnormal region when the thickness of the ore body of the suspected real abnormal region is unchanged near the fault.
In the above method for predicting the position of the hot liquid jet of the jet deposition ore deposit, the specific process of correcting the position of the hot liquid jet again according to the mineral composition in the ore in step six is as follows:
step 601, judging according to ideal distribution states of minerals in an abnormal region ore body, and judging the suspected true abnormal region as a true abnormal region when the minerals in the suspected true abnormal region are distributed in sequence of high-temperature minerals, medium-temperature minerals and low-temperature minerals; when the minerals in the suspected real abnormal region are not distributed in sequence of the high-temperature minerals, the medium-temperature minerals and the low-temperature minerals, the suspected real abnormal region is also judged to be the suspected real abnormal region, and step 602 is executed;
and 602, judging the suspected true abnormal region as the true abnormal region according to the mineral content judgment in the ore body of the abnormal region, when the mineral content in the suspected true abnormal region meets two of the three conditions of 50% of medium-temperature mineral content, 50% of low-temperature mineral content, 30% of medium-temperature mineral content, 70% of low-temperature mineral content and 100% of low-temperature mineral content, otherwise, judging the suspected true abnormal region as the false abnormal region when the mineral content in the suspected true abnormal region does not meet two of the three conditions of 50% of medium-temperature mineral content, 50% of low-temperature mineral content, 30% of medium-temperature mineral content, 70% of low-temperature mineral content and 100% of low-temperature mineral content.
The specific method for predicting the position of the hot liquid jet nozzle of the jet deposition ore deposit in the seventh step is as follows: when the ore bodies in the abnormal region are not completely parallel near the fault, and the ore bodies in the abnormal region are provided with bulges, the positions of the bulges of each ore body are connected, and the junction of the connecting line and the fault is the position of the hot liquid nozzle.
Compared with the prior art, the invention has the following advantages:
1. according to the invention, by coupling the total thickness of the ore body and the thickness of the ore body in each mineralization stage, in the process of predicting the position of the hot liquid nozzle, the influence of factors such as the content of biological fossil and the biological activity range of hot liquid can be effectively avoided, and meanwhile, the influence of factors such as the transformation of later geological activity can be reduced.
2. According to the invention, the position of the hot liquid jet is predicted by macroscopic index ore body thickness, ore body thickness and internal structure of ore deposit in each mineralization stage and mineral composition in microscopic index ore, so that the method has the advantages of integrity, high efficiency, controllability, uniformity and the like, and the condition of predicting the position of the hot liquid jet by a single index is improved.
3. The method is simple, easy to control and low in cost, can generate a good prediction effect, and has a higher economic effect on deep ore body prediction.
In summary, in the process of predicting the position of the hydrothermal jet, the method can effectively avoid the influence of factors such as the content of biological fossil and the biological activity range of hydrothermal, and can reduce the influence of factors such as the transformation of later geological activity; the position of the hot liquid jet is predicted through the thickness of the ore body and the structure of the ore deposit with macroscopic indexes and the composition of the mineral with microscopic indexes, so that the method has the advantages of integrity, high efficiency, controllability, uniformity and the like, improves the condition of predicting the position of the hot liquid jet with a single index, and can generate a good prediction effect.
The technical scheme of the invention is further described in detail through the drawings and the embodiments.
Drawings
FIG. 1 is a flow chart of the method of the present invention;
FIG. 2 is a schematic diagram of the extraction of suspected true anomaly regions according to the present invention;
FIG. 3 is a schematic view of an initial correction anomaly region according to an in-deposit configuration of the present invention;
FIG. 4 is a schematic view of the present invention for correcting the anomaly again based on the mineral composition in the ore;
FIG. 5 is a schematic diagram of a predicted zone of hot fluid jet deposition deposit nozzle placement according to the present invention.
Detailed Description
As shown in fig. 1, the method for predicting the position of a hot fluid jet deposit according to the present invention comprises the steps of:
step one, determining a mineral deposit mineralization period and a mineralization stage;
in this embodiment, when the mineralization period of the deposit is determined in the first step, the mineralization period is divided according to the oxidation-reduction degree, and the mineralization period is named by 1 to 3 mineral names or mineral types; when the mineralization stage is determined in the first step, the mineralization stage is divided according to the formation temperature of minerals as high temperature, medium temperature and low temperature, ore bodies formed in the same temperature range belong to the same mineralization stage, and the mineralization stage is named by 1-3 mineral names or mineral types; wherein the high temperature is higher than 300 ℃, the medium temperature is between 200 ℃ and 300 ℃, and the low temperature is less than 200 ℃.
In practice, taking the serious-river-edge heavy-stone ore deposit in Guizhou as an example, the ore deposit is divided into a quartz-sulfate stage and a sulfide stage according to the degree of oxidation reduction and the formation temperature of minerals, wherein the quartz-sulfate stage is divided into a quartz-silicate stage with the formation temperature between 200 ℃ and 300 ℃ and a sulfate stage with the formation temperature less than 200 ℃.
Step two, determining the total thickness of the ore body and the thickness of the ore body in each mineralization stage determined in the step one sequentially through a drilling hole, a exploratory slot and a method for underground engineering field measurement;
during concrete implementation, field investigation is firstly carried out before drilling, drilling and recording are carried out after drilling, then exploring grooves are carried out, gallery recording is carried out during underground engineering field measurement, then detailed analysis is carried out on mineral deposits, mineral bodies and ores by combining electron microscope observation, and measurement is carried out by taking a main mineralization stage of the mineral deposits as an important point, wherein the field geological investigation is carried out for mainly researching the relationship among the mineral bodies, the construction time and the mineral bodies, geological recording is carried out on sections with more mineral types and development of construction, the mode of combining full roadway recording and fine recording of important sections of the mineral bodies is adopted, the mode of combining macroscopic grasping and microscopic fine anatomic research is adopted, samples of each set of ores on a section are collected by the system, the ores with different structures must be sampled, the total number of the samples of the ores with the same set of structures on the same section is not less than 2, and the principles of section control, small density coverage, proper weight, characteristic weight and the like are followed during sampling.
Modeling on a computer, and reducing the total thickness of the ore body and the thickness of the ore body in each mineralization stage;
in this embodiment, the modeling on the computer in the third step is modeling by Auto CAD software or Arcgis software.
In the embodiment, modeling is performed on a computer in the third step, and when the total thickness of the ore body and the thickness of the ore body in each mineralization stage are reduced, when the total thickness of the ore body is within 15m, the thickness boundaries of each mineralization stage are plotted with 0.5m as a distance; when the total thickness of the ore body is 15-25 m, the thickness boundaries of each mineralization stage are plotted with 0.8m as the interval; when the total thickness of the ore body is more than 25m, the thickness demarcation of each mineralization stage is plotted with 1.0m as a distance; when the ore thickness in different mineralization stages is within 3m, the ore thickness demarcation is plotted with 0.10m as the interval; when the thickness of the ore in different mineralization stages is 3-6 m, the ore thickness demarcation is plotted with 0.20m as the interval; when the ore thickness of the different mineralization stages is outside 6m, the ore thickness demarcation is plotted with 0.40m as the spacing.
Step four, coupling the total thickness of the ore body and the thickness of the ore body in each mineralization stage, and dividing an abnormal region;
in this embodiment, prediction of the position of the hydrothermal vent is performed by macroscopic indicators of the thickness of the ore body and the thickness of the ore body in each mineralization stage, and in the fourth step, the specific method for defining the abnormal region by coupling the total thickness of the ore body and the thickness of the ore body in each mineralization stage is as follows: superposing and coupling the total thickness of ore bodies in the ore deposit and the thickness of the ore bodies in each mineralization stage, judging an area with the thickness change coefficient of the ore bodies larger than 0.2 as a thickness abnormal area in the coupling process, and judging the abnormal area as a false abnormal area when thickness abnormality occurs in the thickness of the ore bodies in 1 or 2 mineralization stages; when thickness abnormality occurs in ore body thickness in more than 3 mineralization stages, judging the abnormal region as a suspected true abnormal region.
In the specific implementation, the total thickness of ores in the main mineralization period and the thickness of ore bodies in each mineralization period are coupled as key research objects to be subjected to superposition coupling.
For example, as shown in fig. 2, the suspected true anomaly 1, the suspected true anomaly 2, and the suspected true anomaly 3 are determined by superposing the total thickness of the coupled ore body and the thickness of the ore body at each stage of mineralization.
Fifthly, carrying out preliminary correction on the position of the hot liquid nozzle according to the internal structure of the ore deposit;
in this embodiment, the prediction of the position of the hydrothermal vent is performed by using a macroscopic index deposit internal structure, and the specific process of performing the preliminary correction on the position of the hydrothermal vent according to the deposit internal structure in the fifth step is as follows:
step 501, judging according to the distance between the abnormal area and the fault, and judging the suspected real abnormal area as a false abnormal area when the distance between the suspected real abnormal area and the nearest fault exceeds 100 m; otherwise, when the shortest fault distance between the suspected real abnormal area and the suspected real abnormal area is less than or equal to 100m, the suspected real abnormal area is also judged to be a suspected real abnormal area, and step 502 is executed;
step 502, judging according to the shape of the abnormal region, when the thickness of the ore body in the suspected real abnormal region is suddenly thickened near the fault, then the thickening speed is slow, and when the long axis of the ore body in the suspected abnormal region is parallel to the fault, judging the suspected real abnormal region as a suspected real abnormal region, and executing step six, and when the thickness of the ore body in the suspected real abnormal region is unchanged near the fault, judging the suspected real abnormal region as a false abnormal region.
As shown in fig. 3, the suspected real abnormal region 2 in fig. 2 is determined as a false abnormal region by the correction method in step 502, the suspected real abnormal region 3 in fig. 2 is determined as a false abnormal region by the correction method in step 501, and the suspected real abnormal region 2 and the suspected real abnormal region 3 are directly excluded.
Step six, correcting the position of the hot liquid nozzle again according to the mineral composition in the ore;
in this embodiment, the predicting the position of the hydrothermal vent is performed by using the mineral composition in the microscopic index ore, and the specific process of correcting the position of the hydrothermal vent again according to the mineral composition in the ore in the sixth step is as follows:
step 601, judging according to ideal distribution states of ore bodies in an abnormal region, and judging the suspected true abnormal region as a true abnormal region when minerals in the suspected true abnormal region are distributed in sequence according to the sequence of high-temperature minerals, medium-temperature minerals and low-temperature minerals; when the minerals in the suspected real abnormal region are not distributed in sequence of the high-temperature minerals, the medium-temperature minerals and the low-temperature minerals, the suspected real abnormal region is also judged to be the suspected real abnormal region, and step 602 is executed;
step 602, judging the suspected true abnormal region as the true abnormal region according to the mineral content judgment in the ore body of the abnormal region, when the mineral content in the suspected true abnormal region meets two of the three conditions of 50% of medium-temperature mineral content and 50% of low-temperature mineral content, 30% of medium-temperature mineral content and 70% of low-temperature mineral content and 100% of low-temperature mineral content, otherwise, judging the suspected true abnormal region as the false abnormal region when the mineral content in the suspected true abnormal region does not meet two of the three conditions of 50% of medium-temperature mineral content and 50% of low-temperature mineral content, 30% of medium-temperature mineral content and 70% of low-temperature mineral content and 100% of low-temperature mineral content;
as shown in fig. 4, the suspected real abnormal region conforming to the fifth step is corrected in the sixth step, and the suspected real abnormal region 1 is determined to be a real abnormal region by observing the distribution sequence of minerals in the ore body in the suspected real abnormal region.
In this example, the true anomaly is further determined by determining the law of variation of the mineral composition and mineral morphology (i.e., whether the distribution of the ore in the ore body is distributed in the order of high temperature, medium temperature and low temperature).
And step seven, predicting the position of the hot liquid nozzle.
In this embodiment, the specific method for predicting the position of the hot liquid nozzle in the step seven is as follows: when the ore bodies in the abnormal region are not completely parallel near the fault, and the ore bodies in the abnormal region are provided with bulges, the positions of the bulges of each ore body are connected, and the junction of the connecting line and the fault is the position of the hot liquid nozzle.
As shown in FIG. 5, F1 is a fault, and the intersection of the extension line connecting the protruding positions of the ore bodies and the fault is the position of the hot liquid nozzle.
The foregoing description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and any simple modification, variation and equivalent structural changes made to the above embodiment according to the technical substance of the present invention still fall within the scope of the technical solution of the present invention.
Claims (6)
1. A method of predicting the position of a jet deposit hydrothermal vent, the method comprising the steps of:
step one, determining a mineral deposit mineralization period and a mineralization stage;
step two, determining the total thickness of the ore body and the thickness of the ore body in each mineralization stage determined in the step one sequentially through a drilling hole, a exploratory slot and a method for underground engineering field measurement;
modeling on a computer, and reducing the total thickness of the ore body and the thickness of the ore body in each mineralization stage;
step four, coupling the total thickness of the ore body and the thickness of the ore body in each mineralization stage, and dividing an abnormal region;
in the fourth step, the total thickness of the ore body and the thickness of the ore body in each mineralization stage are coupled, and the specific method for demarcating the abnormal region is as follows: the method comprises the steps of superposing and coupling the total thickness of ore bodies in an ore deposit and the thickness of the ore bodies in each mineralization stage, wherein in the coupling process, a region with the thickness change coefficient of the ore bodies larger than 0.2 is an abnormal region of the thickness of the ore bodies, and when 1 or 2 mineralization stages of thickness abnormality occurs, the abnormal region is judged to be a false abnormal region; when thickness abnormality occurs in ore body thickness in more than 3 mineralization stages, judging an abnormal region as a suspected true abnormal region;
fifthly, carrying out preliminary correction on the position of the hot liquid nozzle according to the internal structure of the ore deposit;
step six, correcting the position of the hot liquid nozzle again according to the mineral composition in the ore;
step seven, predicting the position of a hot liquid nozzle;
the specific method for predicting the position of the hot liquid nozzle in the seventh step is as follows: when the ore bodies in the abnormal region are not completely parallel near the fault, and the ore bodies in the abnormal region are provided with bulges, the positions of the bulges of each ore body are connected, and the junction of the connecting line and the fault is the position of the hot liquid nozzle.
2. A method of predicting the hydrothermal vent position of a jet deposit according to claim 1, wherein: when the mineralization period of the mineral deposit is determined in the first step, the mineralization period is divided according to the oxidation-reduction degree, and the mineralization period is named by 1-3 mineral names or mineral types; when the mineralization stage is determined in the first step, the mineralization stage is divided according to the formation temperature of minerals as high temperature, medium temperature and low temperature, ore bodies formed in the same temperature range belong to the same mineralization stage, and the mineralization stage is named by 1-3 mineral names or mineral types; wherein the high temperature is higher than 300 ℃, the medium temperature is between 200 ℃ and 300 ℃, and the low temperature is less than 200 ℃.
3. A method of predicting the hydrothermal vent position of a jet deposit according to claim 1, wherein: the modeling on the computer in the third step is modeling by Auto CAD software or Arcgis software.
4. A method of predicting the position of a jet deposit hydrothermal vent according to claim 1 or 3, wherein: modeling on a computer, and when the total thickness of the ore body and the thickness of the ore body in each mineralization stage are reduced, drawing thickness boundaries of each mineralization stage by taking 0.5m as a distance when the total thickness of the ore body is within 15 m; when the total thickness of the ore body is 15-25 m, the thickness boundaries of each mineralization stage are plotted with 0.8m as the interval; when the total thickness of the ore body is more than 25m, the thickness demarcation of each mineralization stage is plotted with 1.0m as a distance; when the ore thickness in different mineralization stages is within 3m, the ore thickness demarcation is plotted with 0.10m as the interval; when the thickness of the ore in different mineralization stages is 3-6 m, the ore thickness demarcation is plotted with 0.20m as the interval; when the ore thickness of the different mineralization stages is outside 6m, the ore thickness demarcation is plotted with 0.40m as the spacing.
5. A method of predicting the hydrothermal vent position of a jet deposit according to claim 1, wherein: the specific process of carrying out preliminary correction on the position of the hot liquid nozzle according to the internal structure of the ore deposit is as follows:
step 501, judging according to the distance between the abnormal area and the fault, and judging the suspected real abnormal area as a false abnormal area when the distance between the suspected real abnormal area and the nearest fault exceeds 100 m; otherwise, when the shortest fault distance between the suspected real abnormal area and the suspected real abnormal area is less than or equal to 100m, the suspected real abnormal area is also judged to be a suspected real abnormal area, and step 502 is executed;
and 502, judging according to the shape of the abnormal region, judging the suspected real abnormal region as a suspected real abnormal region when the thickness of the ore body of the suspected real abnormal region is suddenly thickened near the fault, then the thickening speed is slow, and the long axis of the ore body of the suspected abnormal region is parallel to the fault, and executing the sixth step, and judging the suspected real abnormal region as a false abnormal region when the thickness of the ore body of the suspected real abnormal region is unchanged near the fault.
6. A method of predicting the hydrothermal vent position of a jet deposit in accordance with claim 5, wherein: in the sixth step, the specific process of correcting the position of the hot liquid nozzle again according to the mineral composition in the ore is as follows:
step 601, judging according to ideal distribution states of minerals in an abnormal region ore body, and judging the suspected true abnormal region as a true abnormal region when the minerals in the suspected true abnormal region are distributed in sequence of high-temperature minerals, medium-temperature minerals and low-temperature minerals; when the minerals in the suspected real abnormal region are not distributed in sequence of the high-temperature minerals, the medium-temperature minerals and the low-temperature minerals, the suspected real abnormal region is also judged to be the suspected real abnormal region, and step 602 is executed;
and 602, judging the suspected true abnormal region as the true abnormal region according to the mineral content judgment in the ore body of the abnormal region, when the mineral content in the suspected true abnormal region meets two of the three conditions of 50% of medium-temperature mineral content, 50% of low-temperature mineral content, 30% of medium-temperature mineral content, 70% of low-temperature mineral content and 100% of low-temperature mineral content, otherwise, judging the suspected true abnormal region as the false abnormal region when the mineral content in the suspected true abnormal region does not meet two of the three conditions of 50% of medium-temperature mineral content, 50% of low-temperature mineral content, 30% of medium-temperature mineral content, 70% of low-temperature mineral content and 100% of low-temperature mineral content.
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