Stone Hill

概述

Lenses, massive, 1-8 m thick, dissemination 6 m thick, surface gossans. Two samples carried 103 g/t Ag and 0.51 g/t Au. Composite samples carried 18.3% S, 0.13% Pb, 0.8% Zn. Three samples of gossan contained 0.6-2.0% Cu, 0.09-0.11% Zn, 0.08-0.18% Pb, 0.004% Co and 0.004-0.015% As.

地质背景

构造环境: Pelite-mafic in mature oceanic backarc

资源与开采

投产年份: 1874

数据溯源

数据来源: USGS MRDS