Paleovalley type uranium ore exploration method

Abstract

The invention relates to the technical field of sandstone type uranium ore geological exploration, and particularly discloses a paleovalley type uranium ore exploration method. The method comprises the steps that 1, field core logging is performed, paleovalley sandstone core features are acquired through geological and geophysical prospecting and hydrological logging, and a drilling comprehensive histogram is drawn; 2, mineral features of the paleovalley sandstone core are acquired through sampling the sandstone core and performing geological and geophysical prospecting sampling analysis; 3, a paleovalley planar map and a paleovalley profile map are drawn, and paleovalley sand body strata are divided according to drilling data and sandstone core logging; and 4, an oxidation region and a restoration region are divided according to the paleovalley sand body strata, an oxidation zone front line of an interface of the oxidation region and the restoration region is determined, a delineated uranium ore body is analyzed through drilling, searching and verifying. According to the exploration method, the ore-forming environment of the paleovalley type uranium ore can be effectively judged, division for the paleovalley sand body is performed, a preferable ore-finding area is delineated, and a technical method and a basis are provided for ore-finding of the paleovalley type uranium ore.

Description

Technical field [0001] The invention belongs to the technical field of geological exploration of sandstone-type uranium deposits, and specifically relates to a method for detecting ancient river valley-type uranium deposits. Background technique [0002] Ancient river valley type uranium deposits are an important type of sandstone uranium deposits in the north. When the lithology and lithofacies of continental basins vary greatly, it is difficult to form traditional regional interlayer oxidation zones, which are controlled by the basement structure of the basin. The ancient river valley sand bodies cannot be ignored. The exploration of ancient river valley-type uranium deposits prospecting technology has become one of the important prospecting directions. Because the formation of this type of uranium deposit is controlled by ancient river valley sand bodies and metallogenic environment, and the riverbeds are often diverted and crossed, coupled with the different formation reasons...

AI Technical Summary

Problems solved by technology

In the past work, there were not many prospecting methods for paleoriver-type uranium deposits, the overall effect was not obvious, the efficiency was low, and the cost was high, and it was difficult to find out the ore body genesis and ore-forming environment of this type of uranium deposits. Difficult to make a certain breakthrough in technology