| 山西黎城中元古界常州沟组微生物成因构造(MISS)及其地质意义 |
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| 引用本文： | 郑伟,邢智峰.山西黎城中元古界常州沟组微生物成因构造(MISS)及其地质意义[J].现代地质,2015,29(4):825-832. |
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| 作者姓名： | 郑伟 邢智峰 |
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| 作者单位： | (1.河南理工大学 资源环境学院，河南 焦作 454003；2.河南省生物遗迹与成矿过程重点实验室，河南 焦作 454003) |
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| 基金项目： | 国家自然科学基金项目(41102008，41202071)；中国石油大学(北京)油气资源与探测国家重点实验室开放基金(PRP/open-1207)。 |
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| 摘 要： | 在山西黎城县西井镇彭庄至大井盘公路旁剖面以及黄崖洞景区发育大量的微生物成因构造(MISS)，多发育在砂岩表面。由于构造形态奇特，被误以为各种遗迹化石或是不规则的泥裂构造。依据其形态特征、成因构造和前人分类方案，将研究区此类构造分为3种类型，即微生物席生长构造、微生物席破坏构造和微生物席腐烂构造，以及9个不同形态构造，即小瘤状突起、圆顶大瘤状突起、不规则侧向生长脊、大脊状生长构造、纺锤状脱水裂痕、多边形网状脱水裂痕、曲形脱水裂痕、微生物席砂片、砂火山构造，对9种不同形态的MISS进行了详细的论述。对研究区微生物成因构造(MISS)的成因进行了探讨，与豫西鲁山地区、贺兰山苏峪口地区、北京南口地区、河北兴隆地区发育的MISS及地层特征进行类比，认为MISS对华北地台中元古代地层对比以及古环境研究有重要的指导意义。
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| 关 键 词： | 微生物成因构造(MISS) 中元古界 常州沟组 地层对比 山西黎城 |
Characteristics and Geological Significance of Microbially Induced Sedimentary Structures (MISS) in Changzhougou Formation of Mesoproterozoic in Licheng County,Shanxi Province |
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| ZHENG Wei,XING Zhi-feng.Characteristics and Geological Significance of Microbially Induced Sedimentary Structures (MISS) in Changzhougou Formation of Mesoproterozoic in Licheng County,Shanxi Province[J].Geoscience——Journal of Graduate School,China University of Geosciences,2015,29(4):825-832. |
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| Authors: | ZHENG Wei XING Zhi-feng |
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| Institution: | (1.School of Resources and Environment, Henan Polytechnic University, Jiaozuo, Henan 454003；2.Key Laboratory of Biogenic Traces & Sedimentary Minerals of Henan Province, Jiaozuo, Henan 454003,China) |
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| Abstract: | Many microbially induced sedimentary structures (MISS) in Mesoproterozoic Changzhougou Formation were found in Huangyadong Geopark and beside road of Pengzhuang to Dajingpan in Licheng County, Shanxi Province. It mainly developed on the surface of sandstones and were often mistakenly regarded as a special kind of trace fossils or irregular mudcracks because of its distinctive structural forms. On the basis of previous classification schemes, according to their MISS in Licheng County were divided into three genetic categories morphological features and origins (mat growth feature, mat destruction feature and mat destruction feature) and nine types small growth postulas, big dome growth postulas, irregular lateral growth ridges,big growth ridges, spindle-shaped cracks, polygonal desiccation cracks, curved cracks, microbial sand chips and sand volcano.These nine types of MISS were described and discussed in detail.Compared with MISS and strata characteristics of Lushan area of western Henan, Suyukou area of Helan Mountain, Nankou area of Beijing and Xinglong area of Hebei Province, we conclude that the MISS of the Mesoproterozoic in North China Platform is significant to the study of stratigraphic correlation and paleoenvironment. |
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| Keywords: | microbially induced sedimentary structure Mesoproterozoic Changzhougou Formation stratigraphic correlation Licheng County Shanxi Province |
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