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author:

施满堂 (施满堂.) [1] | 陈文彬 (陈文彬.) [2] | 林辉 (林辉.) [3] (Scholars:林辉) | 姚春茂 (姚春茂.) [4]

Abstract:

福建永安县李坊重晶石矿床是特大型受变质沉积矿床。围岩为寒武纪浅变质(绿片岩相,黑云母带)硅、泥质夹砂屑正常沉积岩系,经受两期变质作用和至少4期变形作用。主变质期(D_1)发生在先,伴生与层理(S_0)平行的千枚状构造(S_1)。主变形期(D_2)发生在后,形成SN向、缓倾伏、倒转的I_c—Ⅱ型复武褶皱, 在千枚岩类中伴生肉眼上可见的视连续劈理,对S_0,S_1发生强烈的置换作用,致使区域地质构造长期被误认为单斜岩层,矿层中出现的小褶皱和寄生褶皱被误认为同生揉皱,反复褶皱的两个矿层被描写成多层序的,连续性差的几百个小矿体。笔者通过先构造后地层的工作程序,利用人工露头,观测各期各类构造形迹的产状、...

Keyword:

构造分析 重晶石矿床

Community:

  • [ 1 ] 福州大学地矿系

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Source :

福建地质

ISSN: 1001-3970

CN: 35-1080/P

Year: 1986

Issue: 02

Page: 18-35,83-86

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 5

Online/Total:18/10459527
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