Miguela A-Zone

概述

Minimum tonnage 1.62 million t @ 3.76% Cu, 0.33% Zn, 1.26 g/t Au, 11.3 g/t Ag. Massive to disseminated. 3 bodies in two stratigraphic layers: Western A-1 and A-2 in upper horizon, Eastern A-3 in lower horizon, separated by 300 m; A-1 is massive tabular 12-23 m thick, 450 m strike length, 350 m down-dip extent, open, A-2 is massive and semi-massive, A-3 is disseminated pyrite; 40 m thick oxide zone, 45 m supergene zone. Tholeiitic-calc alkaline.

地质背景

构造环境: Bimodal-mafic in epicontinental arc

资源与开采

数据溯源

数据来源: USGS MRDS