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黔南晚石炭世叶状藻礁灰岩的成岩作用
引用本文:李金梅,巩恩普,孙宝亮,关长庆,张永利.黔南晚石炭世叶状藻礁灰岩的成岩作用[J].世界地质,2009,28(1):11-19.
作者姓名:李金梅  巩恩普  孙宝亮  关长庆  张永利
作者单位:东北大学资源与土木工程学院, 沈阳110004
摘    要:通过偏光显微镜研究和阴极发光技术, 对黔南晚石炭世叶状藻礁灰岩的成岩作用做了详细研究, 认为礁灰岩主要成岩作用类型有: 生物黏结障积作用、泥晶化作用、胶结作用、压实压溶作用、破裂作用、重结晶作用和溶解作用等。根据岩石薄片阴极发光测试结果的观察、分析, 将成岩过程划分为4个阶段: 准同生成岩阶段、早期成岩阶段、埋藏成岩阶段和后生成岩阶段。通过各种成岩作用的标志性特征及它们在阴极发光下的特征, 推测藻礁灰岩主要经历了海底成岩环境、大气淡水成岩环境和埋藏成岩环境。

关 键 词:黔南  晚石炭世  叶状藻礁  成岩作用  成岩环境
收稿时间:2008-07-09
修稿时间:2008-11-05

Diagenesis of Late Carbon iferous phylloid algal reefs in southern Guizhou
LI Jin-mei,GONG En-pu,SUN Bao-liang,GUAN Chang-qing,ZHANG Yong-li.Diagenesis of Late Carbon iferous phylloid algal reefs in southern Guizhou[J].World Geology,2009,28(1):11-19.
Authors:LI Jin-mei  GONG En-pu  SUN Bao-liang  GUAN Chang-qing  ZHANG Yong-li
Institution:(School of Resources and Civil Engineering, Northeastern University, Shenyang 110004, China)
Abstract:Through the methods of polarizing microscope and cathodoluminescence, the diagenesis of Late Carboniferous phylloid algal reefs in southern Guizhou is studied, which indicates diagenesis are mainly of bio-binding and baffling actions, micritization, cementation, compaction-pressure solution, fracture, recrystallization and dissolution in type. Based on thin section analysis and cathodoluminescence, the diagenesis can be subdivided into four stages, including quasi-contemporaneous diagenesis phases, early diagenesis phase, burial diagenesis phase and epigenetic diagenesis phases. Diagenetic and cathodoluminescent characteristics show that the reefs have gone through marine, meteoric freshwater and buried diagenetic environment.
Keywords:southern Guizhou  Late Carboniferous  phylloid algal reef  diagenesis  diagenetic environment
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