斑岩铜矿床原生晕分带模式及其控制因素  

ZONING PATTERNS OF PRIMARY HALOS AND THEIR CONTROLLING FACTORS IN PORPHYRY COPPER DEPOSITS

作　　者：黄书俊[1] 郦今敖[1] 傅金宝 王建业[1] 

机构地区：[1]冶金工业部地质研究所

出　　处：《地球化学》1983年第3期221-228,共8页Geochimica

摘　　要：The primary halos of porphyry copper deposits are characterized by compositional zonhag in three dimensions. Two ideal zoning patterns can be divided in accordance with the shape of primary halos in space: bell-shaped and anticline-shaped, In the process oF alteration-minerallzation, K, Si, (OH), Fe, Cu, Mo, Ag, S, Ba, Rb,Pb, Zn, As, etc. were imported, while Na, Ca, Mg, Fe, Al, Ti, Mn, V, Co, Sr, Pb, Zn, etc.were exported or became activated, and then transported and reprecipitated. Both import and export of Fe, Pb and Zn may have taken place. The foundamental factors controlling the zoning of primary halos are: the stability of complexes and the activity of elements; pH, Eh, the behaviour of sulfur and the sulphophile character of elements; regularities governing the concentration of a constituent and isomorphism; temperature and pressure; and tectonic setting and country-rock characters. The authors consider that the zoning patterns of primary halos in porphyry copper deposits are tke outcome of integrated effects of the factors mentioned above.The primary halos of porphyry copper deposits are characterized by compositional zoning in three dimensions. Two ideal zoning patterns can be divided in accordance with the shape of primary halos in space: bell-shaped and anticline-shaped.In the process of alteration-mineralization, K, Si, (OH), Fe, Cu, Mo, Ag, S, Ba, Rb, Pb, Zn, As, etc. were imported, while Na, Ca, Mg, Fe, Al, Ti, Mn, V, Co, Sr, Pb, Zn, etc. were exported or became activated, and then transported and reprecipitated. Both import and export of Fe, Pb and Zn may have taken place.The foundamental factors controlling the zoning of primary halos are: the stability of complexes and the activity of elements; pH, Eh, the behaviour of sulfur and the sulphophile character of elements; regularities governing the concentration of a constituent and isomorphism; temperature and pressure; and tectonic setting and country-rock characters.The authors consider that the zoning patterns of primary halos in porphyry copper deposits are the outcome of integrated effects of the factors mentioned above.

关 键 词：斑岩 铜矿 原生晕 成矿作用 分带模式 

分 类 号：P618.41[天文地球—矿床学] P611[天文地球—地质学]