| 蚀变岩型金矿床地球化学新模型 |
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| 引用本文： | 陈守余,张均.蚀变岩型金矿床地球化学新模型[J].地球与环境,1999(1). |
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| 作者姓名： | 陈守余 张均 |
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| 作者单位： | 中国地质大学资源学院!武汉，430074，中国地质大学资源学院!武汉，430074 |
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| 基金项目： | 国家自然科学基金!49772169 |
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| 摘 要： | 以山东招远河东金矿为例，系统采集地表＋54m至－80m七个不同标高中段的地球化学样品，详细研究了包括碱性元素在内的20余种常、微量元素在蚀变岩中的分布特征，重新建立了典型蚀变岩型金矿床找矿评价的元素组合模式、物化探异常模式和地球化学分带模型，指出了深部找矿方向和探采工作应注意的问题。
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| 关 键 词： | 蚀变岩型金矿床 地球化学新模型 山东招远 |
A NEW GEOCHEMICAL MODEL OF GOLD DEPOSITS OF ALTERED ROCK TYPE |
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| Chen Shouyu ,Zhang Jun.A NEW GEOCHEMICAL MODEL OF GOLD DEPOSITS OF ALTERED ROCK TYPE[J].Earth and Environment,1999(1). |
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| Authors: | Chen Shouyu Zhang Jun |
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| Abstract: | This paper deals with the distribution characteristics of more than 20 elements including alkalineelements and Au, Ag, Cu, Pb, Zn, As, Bi, S, Fe, etc. in altered rocks. Relative concentration coef-ficients (altered rock/country rock) of alkali metals are within the range of 1. 5 - 5 and relative dilu-tion 0. 07 - 0. 84 for alkaline-earth metal elements in the mi neralization-alteration zone. A new geo -chemical model of gold deposits of the altered rock type has been established. Horizontal zoning (fromthe outer pare inwards) is (Hg, Rb, Cs)→(Sr, Ba, K, Na, Ca, Mg, Li, Be)→(Au, Ag, Bi, Cu,Pb, Zn, Fe, S) and vertical zoning (from top to bottom) is Zn→Hgh→Cs→Rb→Ba→ Pb→ W→ Mo→Mg→ Sr→ As→ Bi→ Fe→ Cu→Ag→ Ca→ Mn→ Be→ Au→ Ni→ K→ Na→ Co→ S→ Li. The prevailingprosPecting poly-indicators are gradient zone of gravity and magnetic anomaly, video susceptibilityanomaly, and secondary ha1os of Au, Ag, Cu, As, Bi and Hg. |
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| Keywords: | gold deposit of altered rock type geochemical model Zhaoyuan Shandong |
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