San Juan-San Antonio

概述

Stockwork, veins, veinlets, pipes, 5-6 m diameter, Grandeza (Minas del Oro) 125 m long, 70 m high, 20-50 m wide elliptical seams, pockets, pipes; Las Talpas 150 m SE of Grandeza, 2 steep pipe-like bodies of veins and disseminations, 100 m vertical extent, 10-25 m wide; San Juan 2 m thick cross-cutting veins. Calc-alkaline island arc setting.

地质背景

构造环境: Siliciclastic-felsic in mature epicontinental arc

资源与开采

投产年份: 1800

数据溯源

数据来源: USGS MRDS