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该类矿床形成于构造运动晚期或非造山型大陆内;主要产于长英质火山-侵入岩背景下的板状、脉状、浸染状或交代体中;含矿主岩为各种火山岩,从近源、浅成(次火山)岩到远成火山碎屑沉积岩和相关的浅成侵入体;富含磁铁矿和(或)赤铁矿;普遍发育赤铁矿化、绿泥石化、绿帘石化、钠长石化等。矿床可从单金属型(Fe)到多金属型(Fe、Cu、U、Au、Ag、REE),形成于元古代,最可能的成因是深处的英安岩到流纹岩的岩浆岩房中的分异作用和挥发转移作用。该类矿床最重要的地球物理特征是磁异常和重力异常的吻合区。
These deposits formed in the late tectonic movement or non-orogenic continent; mainly produced in the plains, veins, disseminated or metamorphic bodies in the background of the Chang-Ying volcano-intrusive rocks; the host ore-bearing rocks are all kinds of volcanic rocks, From near source, shallow (subvolcanic) rocks to Yuancheng volcanic clastic sedimentary rocks and related shallow intrusions; rich in magnetite and / or hematite; generally hematite, chlorite, Green curtain petrochemical, sodium long petrochemical. The deposits can occur from single metal type (Fe) to multimetallic type (Fe, Cu, U, Au, Ag, REE) and formed in the Proterozoic. The most likely genesis is the deep magmatic rocks of dacite to rhyolite Room differentiation and the role of volatility. The most important geophysical characteristics of this type of deposit are the anomaly areas of magnetic anomalies and gravity anomalies.