GEOLOGICAL, MINERALOGICAL AND GEOCHEMICAL CHARACTERISTICS OF THE CARLES GOLD MINERALIZATION, ASTURIAS, SPAIN

被引：2
|
作者：
IGLESIAS, JG
LOREDO, J
机构：
[1] Escuela de Minas, Oviedo, 33004
来源：
MINERALIUM DEPOSITA | 1990年 / 25卷
关键词：
D O I：
10.1007/BF00205250
中图分类号：
P3 [地球物理学]; P59 [地球化学];
学科分类号：
0708 ; 070902 ;
摘要：
In the western part of the Cantabrian Zone, Carles gold mineralization is related to an igneous stock of granodioritic composition which intruded into devonian limestones, forming a well-developed exo-skarn and quantitatively less important endo-skarn. The skarn is characterized by the presence of garnet, pyroxenes, amphiboles, layers of hornfels corresponding to pelitic intercalations, and a number of opaque oxides and sulfides. Gold inclusions in arsenic minerals are present in quartz-veins occurring in the skarn and in the granodiorite, but gold-rich zones are limited to the skarn. The crystallization temperature of arsenopyrite is coherent with T-P conditions (T = 460-degrees-C, P = 2200 bars) deduced from intersections of isochores of aqueous and carbonic fluid inclusions studied in samples of cogenetic quartz.
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收藏
页码：S53 / S58
页数：6
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