An ore prospecting method using high-precision ground gravity measurement

A kind of gravity measurement, high-precision technology, applied in the field of prospecting, can solve problems such as low yield

Active Publication Date: 2021-05-07
EAST CHINA UNIV OF TECH
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Problems solved by technology

[0005] From the end of the 1980s to the beginning of the 1990s, China mainly introduced the metallogenic theory and prospecting methods of Central Asia. A large number of drilling operations were deployed in many areas of Northwest and Northeast China, but with little success. Characteristics of metallogenic background conditions in China

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  • An ore prospecting method using high-precision ground gravity measurement
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  • An ore prospecting method using high-precision ground gravity measurement

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Embodiment Construction

[0141] The present invention is attached with some specific implementations from the early stage preparation of the technology until the project results come out.

[0142] 1. Field gravity exploration work; first, the GPS geodetic and gravity measurement team of this project completed the fast static GPS positioning measurement and gravity measurement of four profiles, including the data supplementary measurement of two profiles. Field workload - completed the data collection of 685 gravity measuring points planned and designed, with a completion rate of 154.60%. A total of four gravity profiles of NL line, MD line, E400 line and SH line have been completed. Among them, the total length of the profile is 105.4km, and the total number of physical points is 1172.

[0143] 2. Work progress and data collation; according to the design requirements of the project, gravity measurement work will be carried out between Sunid Right Banner and Erlianhot. Since the accuracy of the measu...

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Abstract

A prospecting method using high-precision gravity measurement on the ground, which mainly includes six methods, namely, the wavenumber domain iteration method of the high-order derivative of the potential field, the separation method of the potential field based on the iterative filtering method, the TASD method of identifying the boundaries of geological bodies, Euler deconvolution method for potential field data processing, potential field anomaly cross-correlation imaging technology method, and gravity human-computer interaction profile forward modeling method. The advantages of the present invention are: using the ore prospecting method of high-precision gravity measurement on the ground, data processing and interpretation of multiple gravity profiles, the interpretation method covers wave number domain derivative iteration method, field separation iterative filtering method, and interactive analysis based on residual anomalies. Correlation imaging technology has been applied to gravity data and achieved good processing results.

Description

technical field [0001] The invention relates to an ore prospecting technology, in particular to an ore prospecting method using ground high-precision gravity measurement. Background technique [0002] The ore-forming geological background and conditions of sandstone-type uranium deposits in northern China are quite different from those in foreign countries, so there are also different ideas in the exploration of ore prospecting methods. [0003] Central Asia is rich in interlayer infiltration oxidation zone sandstone-type uranium deposits. The ore-forming model of interlayer oxidation zone deposits mainly comes from here. The sandstone-type uranium deposit metallogenic theory and ore prospecting methods introduced by China's nuclear industry in the late 1980s are mainly based on the previous reference. The successful experience of the Soviet Union in Central Asia. However, the special ore-forming geological conditions in Central Asia are not available in China. For example,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01V7/06
CPCG01V7/06
Inventor 聂逢君王彦国邓居智严兆彬李满根夏菲何剑锋张成勇封志兵
Owner EAST CHINA UNIV OF TECH
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