The Study Of Exploration Model About Shallow Coverage Areas’ Fluorite Deposit In The Middle-southern Segment Of Da Hinggan Mountains

The middle-southern segment of Da Hinggan Mountain is located at theintersection of Paleo-Asian and Bin-Pacific metallogenic province, and with superiormetallogenic conditions. Fluorite potential has been proved by recent yearsexploration. It is necessary to carry out shallow coverage areas exploration for thewidely coverage at this region. This paper is based on the Geological theory, with theuse of remote sensing, VLF_EM， high-precision magnetic, X-ray technique,gamma-ray spectrometry, geochemical gas survey and Soil geochemistry partialextraction, to building the exploration model of fluorite deposit suitable for shallowcoverage areas at middle-southern segment of Da Hinggan Mountain.Different technique methods was used on the same standard geologic section inShuitou fluorite deposit,which was located at Linxi country with fully representative,so as to contrast their effects on the fluorite body, some outcomes have been achievedafter a series attempts.Remote sensing: obvious lineament; VLF_EM: obvious low resistance zones(Anomaly always excursion to the ore body tendency.); X ray: high Ca element value(Anomaly always excursion to the lower elevation or ore body tendency), and so to Feand K; Enzyme leach: high F element value(Anomaly always excursion to the lowerelevation or ore body tendency); High-precision magnetic survey: Lower magneticzones within high background. Gamma spectrometry: lower anomaly zones, transitionzone between high and low or gradient zone.The exploration model was finally achieved based on the work above:(1)Regional geology information collect and analysis;(2) Choose target area afterserious research;(3) Carry out field geological investigation with the guidance ofremote sensing.(4) Use VLF, High-precision magnetic survey or Gammaspectrometry to track ore-controlling structure;(5) X ray or Enzyme leach was carriedout to search the ore body directly.(6) Arrangement mineral exploration engineering.