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Mineral exploration method using sedimentary fan model as seabed jet flow sedimentary ore deposit

A sedimentary fan and jet flow technology, applied in the field of mineral exploration, can solve problems such as difficulties, lack of prospecting and exploration methods for delineation of rich ore bodies, unclear understanding of ore body facies belt division criteria, etc., to increase mine ore reserves and create economic benefit effect

Active Publication Date: 2020-08-04
CENT SOUTH UNIV
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AI Technical Summary

Problems solved by technology

[0004] To sum up, the problems existing in the existing technology are: the existing technology lacks an overall understanding of the spatial distribution of the submarine exhalation sedimentary ore bodies, and lacks specific and effective ore prospecting methods for the delineation of rich ore bodies
The reason for the lack of overall understanding of the spatial distribution of submarine exhalative orebodies is the lack of theoretical prospecting models, that is, the lack of intuitive understanding of the formation process of orebody exhalative deposition and the migration of ore-forming fluids mixed with seawater. Lack of theoretical understanding of behavior, resulting in a lack of standards for the determination of ore body boundaries and different facies zones
The lack of specific and effective prospecting and exploration methods for the delineation of its rich ore bodies is due to the lack of overall understanding of the spatial distribution of the original exhalative sedimentary ore bodies, and the lack of a clear understanding of the ore body facies belt division criteria, that is, in the ore body During the exploration process, it is difficult to judge which part of the ore body that has been discovered belongs to the entire ore body to be explored
The technical problem brought about by this lack is: how to predict the overall spatial distribution of ore bodies and the location of rich ore bodies under the exposure of limited prospecting engineering (such as pit exploration, trenching, drilling, etc.)
[0005] Difficulty in solving the above-mentioned technical problems: If there is no overall exploration model of submarine exhalative sediment deposits, it will be very difficult to solve the above-mentioned technical problems, because in the early stage of mineral exploration, limited prospecting projects are only a glimpse of a leopard. How to obtain It is very difficult to quickly judge the direction of ore prospecting

Method used

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  • Mineral exploration method using sedimentary fan model as seabed jet flow sedimentary ore deposit
  • Mineral exploration method using sedimentary fan model as seabed jet flow sedimentary ore deposit
  • Mineral exploration method using sedimentary fan model as seabed jet flow sedimentary ore deposit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] Example 1 Exploration of Qinghai Xitieshan lead-zinc deposit based on sedimentary fan model

[0054] The Xitieshan lead-zinc deposit in Qinghai is located on the northern edge of the Qaidam block, on the south side of the Caledonian fold belt in the Qilian Mountains, and is a large lead-zinc deposit. In recent years, due to the large amount of mining and the severe resource situation, the problem of prospecting in the deep edge of the mining area is prominent, and the establishment of an effective prospecting model is urgently needed. This example describes in detail the implementation process of the exploration of the Xitieshan lead-zinc deposit in Qinghai, using the sedimentary model as a new method.

[0055] The first step is to restore the original ore body shape of the deposit and make a projection map of the ore body. The ore body of the Xitieshan deposit is small in thickness and large in extension area, which is a layered structure, and the overall occurrence i...

Embodiment 2

[0093] Example 2 Exploration of the Zhaokalong iron-copper polymetallic deposit in Qinghai based on the sedimentary fan model

[0094] The Zhaokalong iron-copper polymetallic deposit is located in the famous "Sanjiang" metallogenic belt in my country, and has a long history of prospecting and exploration. In recent years, Western Mining Company and Nobel Mining Company have successively carried out large-scale ore prospecting and exploration work in the mining area, the scale of the deposit has been further expanded, and the shape and occurrence of the ore body have been further ascertained. However, with the deepening of ore prospecting and exploration, the morphology of the ore body in the mining area needs to be ascertained urgently, and the metallogenic model needs to be established urgently. This example briefly explains the exploration process of the Zhaokalong iron-copper polymetallic deposit by using the sedimentary fan model, indicating the favorable direction of ore ...

Embodiment 3

[0101] Example 3 Exploration of the Hutouya lead-zinc deposit in Qinghai based on the sedimentary fan model

[0102] The Hutouya mining area is located in the western part of the South Qaidam Margin, which is the position of the junction zone between the north and south plates in western my country, on the transition zone between the southern margin of the North China plate and the northern part of the Yunnan-Tibet plate, and is also related to the Tethys tectonic belt . The Hutouya deposit is produced in the Carboniferous strata. The ore body is layered or layered. The ore body strikes the same direction as the stratum, and it is east-west. The scope of the mining area is distributed along the strike of the deposit. There is a common distribution of ore bodies in the ore belt. The ore deposits are mainly distributed in a set of strata, which is a combination of thin-bedded marble, limestone, iron-bearing quartz sandstone and siliceous rock interbedded, which is a stable ore-b...

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Abstract

The invention belongs to the technical field of mineral exploration and discloses a mineral exploration method using a sedimentary fan model as a seabed jet flow sedimentary ore deposit. A depositionfan seabed jet flow ore deposit cause mode is adopted, a typical seabed jet flow ore deposit is controlled by a relay slope structure, ore forming fluid is sprayed out of a nozzle to be mixed with seawater; after a chemical reaction, the ore forming fluid is regarded as an ore body which can migrate on the seabed and forms a fan-shaped structure on the seabed and is divided into a center phase zone, a transition phase zone and an edge phase zone. A great challenge is formed for a traditional jet flow deposition model in the fluid mineralization process, especially on ore body space lattices, and the understanding of people on the original ore body form of a seabed jet flow ore deposit is changed. Therefore,, ore reserves of related mines are greatly increased, obvious economic benefits arecreated, consistent good reputation of production units is obtained, the brand-new model has great guiding significance in actual geological exploration of seabed jet flow ore deposits, and the mineral exploration method can be effectively applied to deep prospecting exploration.

Description

technical field [0001] The invention belongs to the technical field of mineral exploration, and in particular relates to a mineral exploration method using a sedimentary fan model as a seabed jet sedimentary deposit. Background technique [0002] At present, prospecting and exploration refers to the effective identification and evaluation of the occurrence and reserves of ore bodies by studying the geological conditions of mineral formation and distribution, the occurrence rules of ore deposits and the characteristics of ore body changes, so as to conduct geological, technical and economic evaluations. An important method of mineral exploration and evaluation is the determination of theoretical prospecting models. Theoretical prospecting refers to mineral prospecting under the guidance of modern metallogenic theory, based on geology and using various advanced scientific and technological methods. Submarine exhalative sedimentary deposits refer to carbonate rocks (mainly dol...

Claims

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Application Information

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IPC IPC(8): G01V9/00
CPCG01V9/00
Inventor 李欢奚小双
Owner CENT SOUTH UNIV
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