论文部分内容阅读
矿床产于中生代未变质的沉积岩中。这种类型的镁钠闪石石棉矿床在国内外罕见。对矿床成因的认识,曾被视为热液的或沉积的。近几年来,随着地质勘探工作的深入,揭示了较多的地质现象,矿床的成矿地质特征越来越多的被揭示,因此,试图对矿床成因作一番探讨,是具有条件的和有意义的。矿区位于扬子准地台西缘的一个中生代拗陷盆地中,内陆河湖相的沉积厚逾万米,下部为含煤碎屑沉积,中上部为红色碎屑沉积。在早、晚第三纪之间,伴随喜山运动,有碱性岩浆的侵入。
The deposit is produced in Mesozoic unconformable sedimentary rocks. This type of mafic amphibole asbestos deposit is rare at home and abroad. Knowledge of the genesis of the deposit was once considered hydrothermal or sedimentary. In recent years, with the deepening of geological exploration work, more geologic phenomena have been revealed and more and more geological features of the ore deposits have been revealed. Therefore, trying to discuss the genesis of the ore deposits is a conditional and meaningful. The mining area is located in a Mesozoic depression basin on the western margin of the Yangtze Platform. Inland river lacustrine sediments are over ten thousand meters thick with coal-bearing clastic sediments in the lower part and red clastic sediments in the middle part. In the early and late Tertiary period, with the Himalayan movement, alkaline magma intrusion.