An experimental method for the study of element migration mechanism in hydrothermal lead-zinc deposits

Abstract

The invention discloses an experiment method for studying element migration mechanisms in hydrothermal solution type lead-zinc deposit. The experiment method comprises the following steps: acquiring geological conditions, and preparing a metal element chlorine-containing complex solution; adjusting the solution with HCl or NaCl, performing hydrolysis, filtering, performing centrifugal separation, and performing ICP-Ms analysis on the supernate so as to obtain the content of metal elements after hydrolysis; according to an opened system or a half-sealed system, putting the solution into a plastic bottle, putting surrounding rock into the solution, in the opened system, adding a solution of a same volume into the bottle every day till the sixth to tenth day, in the opened system or the half-sealed system, filtering a part of the solution in the bottle, performing centrifugal separation, performing precipitation drying, performing ICP-Ms testing on the filtered supernate, and performing EPMA (X-Ray Electron Probe Microanalyzer) testing on the surrounding rock and the precipitate; with the combination of the testing results and the geological conditions, performing comprehensive analysis on the element migration mechanisms. The experiment method disclosed by the invention is simple, rapid in balance reaching, possible in quantitative calculation and capable of reflecting basic properties of elements and stability of complex.

Description

technical field [0001] The invention belongs to the technical field of geological and mineral exploration, and specifically relates to an experiment for the study of element migration mechanism in hydrothermal lead-zinc ore deposits with simple method, quick equilibrium, quantitative calculation, and ability to reflect the basic properties of elements and the stability of complexes method. Background technique [0002] In what form and how do elements migrate during geological processes have always been the most basic scientific issues in the geochemical field, and they are also unavoidable problems in the study of fluid migration mechanisms. How do metals occur in the source, how do they migrate, and how do they accumulate? The understanding of the genesis of ore deposits plays an important role. In recent years, testing technology has been continuously improved and computer simulation functions have become increasingly powerful, but the development of diagenetic and miner...

AI Technical Summary

Problems solved by technology

Although predecessors have studied the formation mechanism of this type of deposit from the aspects of mineral deposits and geochemistry itself, and have achieved important results, it is rare to study the ore-forming mechanism of this type of deposit from experimental geochemistry.

Images