宿州地区新元古代岩石学特征及沉积环境
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摘要
为了解皖北新元古代沉积环境,在详细的野外地层学工作基础上,结合室内岩石学分析,识别出几种特殊的岩石类型。通过岩相学、沉积学的研究,综合利用野外沉积构造,分析了宿州地区新元古代的沉积环境。研究表明,宿州地区新元古代整体为一套碳酸盐岩建造,以陆表海沉积为主,海平面升降频繁,共有四次沉积旋回,并均伴有地震活动。
For the sedimentary environment of Neoproterozoic in Suzhou district,detailed stratigraphy study has been completed outside,petrology analysis finished indoor,and several types of rock are indentified.The Neoproterozoic environment in Suzhou district has been postulated by the study on petrography,sedimentology and sedimentary structure field.The results imply that the Neoproterozoic environment in Suzhou district is continental sea,constructed by carbonatite,the sea-level rises and falls frequently with four sedimentary cycles,with seismic activities.
For the sedimentary environment of Neoproterozoic in Suzhou district,detailed stratigraphy study has been completed outside,petrology analysis finished indoor,and several types of rock are indentified.The Neoproterozoic environment in Suzhou district has been postulated by the study on petrography,sedimentology and sedimentary structure field.The results imply that the Neoproterozoic environment in Suzhou district is continental sea,constructed by carbonatite,the sea-level rises and falls frequently with four sedimentary cycles,with seismic activities.
引文
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[3]王鸿祯.中国古地理图集.北京:地图出版社,1985:1-3
[4]乔秀夫,宋天锐,高林志,等.碳酸盐岩振动液化地震序列[J].地质学报,1994(1):16-34
[5]Fairchild I J,Einsele G,Song Tianrui.Possible seismic ori-gin of molar tooth structures in Neoproterozoic carbonareramp deposits,North China[J].Sedimentology,1997,44:611-636
[6]杜汝霖,田立富,李汉棒.蓟县长城系高于庄组宏观生物化石的发现[J].地质学报,1986,60(2):183-190
[7]孙淑芬,朱士兴,黄学光.天津蓟县中元古代高于庄组宏观化石的发行及其地质意义[J].古生物学报,2006,45(2):207-220
[8]朱士兴,孙淑芬,黄学光,等.燕山常州沟组(约1800Ma)碳质压型化石及其多细胞组织的发现[J].科学通报,1999,44(14):1552-1557
[9]梅冥相.天津蓟县中元古界高于庄组“球形臼齿状构造”新解——1400Ma以前球形或似球形实体宏观藻类化石的细胞显微结构[J].现代地质,2007,21(4):738-747
[10]梅冥相.中元古代罕见的实体宏观藻类化石—来自天津蓟县中元古界高于庄组第三段非叠层石碳酸盐沉积序列中的新材料[J].现代地质,2008,22(1):129-142
[11]乔秀夫,邢裕盛,高林志,等.皖北震旦系张渠组风暴沉积[J].地质学报,1989,63(4):297-309
[12]王翔,王战.华北地块南缘上元古界风暴沉积[J].沉积学报,1993,11(2):91-97
[13]宋天锐.沉积地层中地震事件记录及其意义[A].北京大学地质学系编.北京大学国际地质科学学术研讨会论文集[C].北京:地震出版社,1998:212-221
[14]华东石油学院岩矿教研室.沉积岩石学(下)[M].北京:石油工业出版社,1982:204-208
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