Joma

概述

Massive, brecciated, disseminated, minor veins, 0.04 km thick. Double arc, dish-shaped body dips steeply SW and W, leveling off to nearly horizontal at 200 m depth, 1,200-1,500 m lateral extension, 55 m wide (plan). Contains 32-35% S. Stratigraphy may be inverted. Back arc marginal basin or off-axes ensialic intraplate incipient rift or ensimatic mid-oceanic ridge (mid-ocean ridge tholeiitic affinity).

地质背景

构造环境: Bimodal-mafic in oceanic arc

资源与开采

运营方: 0

投产年份: 1972

数据溯源

数据来源: USGS MRDS