Northern bauxite positioning method and device

A technology of bauxite and horizontal direction, which is applied in the field of metal ore and geophysical exploration, and can solve the problems of inaccurate detection results and single detection methods of bauxite

Inactive Publication Date: 2020-06-05
XIAN NORTHWEST COLORING MATTER CHEM PROSPECTING CORPS CO LTD
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Problems solved by technology

[0009] The purpose of the present invention is to solve the problem that the existing bauxite detection method is sin...

Method used

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  • Northern bauxite positioning method and device
  • Northern bauxite positioning method and device
  • Northern bauxite positioning method and device

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specific Embodiment approach 1

[0030] Specific implementation mode 1: A positioning method for northern bauxite mines proposed in this implementation mode is firstly based on electrical differences, using transient electromagnetic method to perform fine positioning of bauxite in the horizontal direction; then, based on the density difference characteristics, using seismic exploration methods Carry out fine positioning in the horizontal direction; finally, comprehensively consider the transient electromagnetic method and seismic exploration method to delineate the favorable parts of bauxite mineralization.

[0031] Described method specifically comprises:

[0032] Step S1, use the transient electromagnetic sounding method to detect in the area to be estimated, obtain the transient electromagnetic apparent resistivity section map, and use the electrical difference between the bauxite and the surrounding rock to measure the ore-bearing area laterally on the apparent resistivity section map. Inhomogeneity is es...

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Abstract

The invention discloses a northern bauxite positioning method and device, relates to the field of metal ore and geophysical exploration, and aims to solve the problem that a detection result is not accurate enough due to a single bauxite detection means in the prior art. The method comprises the following steps: determining an upper interface of Ordovician limestone and the position of an Ordovician limestone concave hopper in the horizontal direction in a to-be-estimated area by utilizing a transient electromagnetic method; determining the position of the Ordovician limestone concave hopper in the vertical direction in the to-be-estimated area by using a seismic survey method; and determining the positions of the Ordovician limestone top surface concave areas in the horizontal direction and the vertical direction as bauxite occurrence positions by integrating transient electromagnetic method detection data and seismic survey method detection data. The device comprises a transient electromagnetic method detection module, a seismic exploration module and an analysis module. According to the method, the non-uniform abnormal positions in the horizontal direction and the vertical direction are determined through a transient electromagnetic method and seismic prospecting, transient electromagnetic and seismic prospecting profiles are comprehensively analyzed, and bauxite can be finely positioned.

Description

technical field [0001] The invention relates to the field of metal ore and geophysical exploration, in particular to a positioning method and device for northern bauxite mines. Background technique [0002] Sedimentary bauxite in northern my country mainly occurs in the concave bucket of the contact surface between the Ordovician limestone and the Carboniferous Benxi Formation, and the transition zone between the concave bucket and the uplift area, and the top of the bauxite top is the Permian The bottom of the Shanxi Formation is Cambrian-Ordovician limestone with karst characteristics. Therefore, strengthening geological and geophysical prospecting work and expanding resources has become a top priority. However, because most of these bauxite mines are hidden, the geological prospecting work is extremely difficult, and the exploration of bauxite mines can only rely on a large number of drilling projects, which are expensive, costly, long-term, and risky. [0003] At presen...

Claims

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Application Information

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IPC IPC(8): G01V11/00
CPCG01V11/00
Inventor 郭文波薛国强周舟王宏宇刘银爱
Owner XIAN NORTHWEST COLORING MATTER CHEM PROSPECTING CORPS CO LTD
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