Vertical zoning characteristics and significance of primary halo in dongwan gold deposit, Songxian county
Abstract：Dongwan gold deposit of Songxian County occurs in volcanic rocks of Jidanping Formation, Xiong~r Group, Mesoproterozoic, which is magmatic hydrothermal altered rock type gold deposit. Mine field has a cer- tain blank on the study of primary halo. The deposit is controlled by regional fracture. The major orebody zon- ing characteristics of primary halo in vertical are clear. By means of sampling of gold orebody primary halo from surface, shallow adit, deep core of drill hole and chemical analysis of Au, Ag, Cu, Pb, Zn, Co, Ni, Ba, we found that Ba is the front indicator element of gold orebody, which is enriched in the front and upper part of orebody and forms anomaly ; Au, Ag, Cu, Pb, Zn are the near-ore indicator elements of gold orebody, which are enriched in the upper, middle and lower parts of orebody and form anomalies; Co and Ni are the rear indicator elements of gold orebody, which are enriched in the lower part of orebody and form anomalies. Through calculating, we get that the vertical normal zoning sequence is Ba-Pb-Zn-Au-Ag-Co-Cu-Ni. Then wededuce the exposed part is the middle-upper part of the orebody. There will be large potential of prospecting in deep.
Keywords：gold depositprimary halovertical zoningdongwansongxian county
Publication Date：2012-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：7( 165-171 )