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本文仅讨论大明山地区下泥盆统下部滨岸相碎屑岩中层状钨矿床的成因.提出D_1层状钨矿床属层控类型;钨的矿源层是不整合面下的寒武系浅海相含钨砂页岩及似层状钨矿床:燕山晚期白云母花岗斑岩岩体中的钨,主要来自被同化混染的C_1、D_1含钨岩层与矿层. 矿区地质位于印支期形成的大明山背斜北西倾伏部位略偏西南的大明山钨矿床(矿石中黑、白钨矿比为2∶1,低品位),是由下泥盆统(D_1)下部砂页
This paper only discusses the genesis of the bedded tungsten deposit in the Lower Paleogene clastic rocks in the Lower Moutain in the Daming Mountain area, and presents that the D 1 -layered tungsten deposit belongs to the stratabound type and the tungsten source layer is the Cambrian shallow sea beneath the unconformity Tungsten-bearing shale-lacustrine and stratified tungsten deposits: Tungsten in the Late Yanshanian muscovite porphyry mainly comes from C 1 and D 1 tungsten-bearing strata and ore layers that have been assimilated and contaminated. The Daming Shan anticline on the northwest dip is slightly southwest of the Damingshan tungsten deposit (black and scheelite ratios of 2: 1, low grade) in the lower part of the lower Devonian (D_1) sand sheet