Prospecting method for fluorite mine in residual slope product coverage area

Abstract

The invention discloses a prospecting method for a fluorite mine in a residual slope product coverage area. The prospecting method comprises the following steps of conducting 1: 5 thousand geological route investigation in a geochemical exploration abnormal area delineated by a former person, searching fluorite particles in residual slope products, measuring geological points after the fluorite particles are found, conducting detailed recording, and marking, drawing the mineralization information found in all the areas on a geological map according to the actual position, and defining the distribution direction of the mineralization zone, measuring a 1: 2 thousand exploration line section in the vertical direction of the mineralization zone, exposing and verifying a mineralized body found on the earth surface along the section of an exploration line by using an excavator, uncovering a quaternary system residual slope product layer, carrying out detailed geological record and sample collection on the exposed mineralized body, determining the thickness, occurrence and grade characteristics of an ore body, and finally drawing a groove exploration section map, and controlling inclined depth layout drilling engineering according to working requirements on the groove exploration section map to carry out deep verification. The method is simple and convenient, low in cost investment and good in effect, the purpose of prospecting is achieved, and a good prospecting result is obtained.

Description

technical field [0001] The invention relates to the technical field of mineral exploration, in particular to an ore prospecting method for fluorite ore in residual slope accumulation areas. Background technique [0002] Fluorspar, also known as fluorspar, the chemical composition is CaF 2 , is the main source of fluorine in industry, and its products are widely used in aerospace, aviation, refrigeration, medicine, pesticides, anti-corrosion, fire extinguishing, electronics, electricity, machinery and atomic energy and other fields. my country is rich in fluorite resources, widely distributed, and various types of deposits. The resource reserves, production volume and export volume all rank first in the world. [0003] The altitude of a certain work area is between 4000-4400m, and the terrain is relatively flat. The surface is generally covered by Quaternary residual slope deposits, generally above 1m, and there are local permafrost. Surface geological outcrops are rare, an...

AI Technical Summary

Problems solved by technology

Some mineralization information was discovered through a 1:10,000 geological survey, and 4 fluorite ore bodies and 15 fluorite mineralization bodies were delineated after trenching construction (manual construction) in the later stage. Finally, traditional drilling engineering (M -4 type drilling rig, working at a 90° inclination angle) to carry out deep verification on the delineated fluorite ore bodies. Although certain mineralized bodies have been delineated, the overall prospecting results and effects are not satisfactory, and the expected purpose cannot be achieved.

From various prospecting methods, 1:10,000 high-precision magnetic survey and 1:10,000 gamma energy spectrum survey are basically ineffective in prospecting in this area, and it is recommended not to implement them in the future. The prospecting effect of the drilling project in this area is average

[0005] In 2020, in response to the geochemical anomalies delineated by the predecessors, 1:10,000 geological draft survey, 1:5,000 soil profile, a large number of exploration work, 1:10,000 high-precision magnetic survey, 1:10,000 were implemented according to conventional technical means. 10,000 gamma spectrum measurement, manual trenching and traditional drilling, etc., but with little effect

Through the subsequent work and summary, it is found that because the work area is generally covered by the Quaternary residual slope, and the covering is thick, the 1:10,000 high-precision magnetic measurement and the 1:10,000 gamma energy spectrum measurement work are basically in this area. Invalid; the 1:10,000 geological survey is too large in mesh (200*100m) and the traversing method is likely to cause ore leakage, so it is difficult to find mineralization information distributed in residual slope deposits; artificial trenching is generally deep in Within 2m, it was found by mechanical trenching in the later period that the depth of trenching is generally below 2m to reveal the fluorite ore body; conventional drilling is carried out according to straight holes (inclination angle 90°), and the occurrence of fluorite ore bodies in the working area Generally steep, it is difficult to achieve the expected effect in drilling construction

Generally speaking, the existing technical processes and methods are complex, costly and less effective

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