Davis
美国· Massachusetts未知
概述
Massive lens, 2-18 m thick, mined 400 m down-dip. Ensimatic island arc. Total size is unknown but estimated by Slack and others (1983) at 0.9 million t of unknown grades. Unpublished grades: 0.7% Cu, 5.6% Zn, 0.015% Pb, 27.8 g/t Ag.
地质背景
构造环境: Bimodal-felsic in epicontinental arc
资源与开采
投产年份: 1882
数据溯源
数据来源: USGS MRDS