| 湖相碳酸盐岩高精度层序地层学探析 |
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| 引用本文： | 赵俊青,夏斌,纪友亮,姜在兴,张善文.湖相碳酸盐岩高精度层序地层学探析[J].沉积学报,2005,23(4):646-656. |
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| 作者姓名： | 赵俊青 夏斌 纪友亮 姜在兴 张善文 |
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| 作者单位： | 1.中国科学院广州地球化学研究所与南海海洋研究所边缘海地质重点实验室,广州 510640; |
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| 基金项目： | 科技部科研项目
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国家重点基础研究发展计划(973计划)
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中国科学院知识创新工程项目 |
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| 摘 要： | 目前湖相碳酸盐岩是国内外沉积学研究的薄弱环节。应用层序地层学方法,以济阳坳陷沾化凹陷埕东地区沙一段的湖相碳酸盐岩为例,详细探讨湖相碳酸盐岩的层序地层学发育模式、层序地层单元划分级次以及控制因素等问题,重点对湖相碳酸盐岩准层序的类型、识别标志、形成机理以及对比模式进行了研究。研究表明,湖相碳酸盐岩可总结为陡坡和缓坡2种层序地层学发育模式;其高精度层序地层单元可划分为层序、体系域、准层序组、准层序、微层序5级;准层序类型可划分为陡坡型、缓坡型和深洼型3大类和L-M型、滩坝型、滑塌型、深水蒸发型4小类,不同类型的准层序形成的主控因素各不相同;准层序的对比模式可总结为陡坡突变和缓坡第变2种模式,在不同模式中准层序发生有规律的变化。
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| 关 键 词： | 湖相碳酸盐岩 准层序 高精度层序地层 模式 |
| 文章编号： | 1000-0550（2005）04-0646-11 |
| 收稿时间： | 2004-08-31 |
| 修稿时间： | 2004-12-23 |
Analysis of the High Resolution Sequence of Lacuatrine Carbonate |
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| ZHAO Jun-qing,XIA Bin,JI You-liang,JIANG Zai-xing,ZHANG Shan-wen.Analysis of the High Resolution Sequence of Lacuatrine Carbonate[J].Acta Sedimentologica Sinica,2005,23(4):646-656. |
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| Authors: | ZHAO Jun-qing XIA Bin JI You-liang JIANG Zai-xing ZHANG Shan-wen |
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| Institution: | 1.Laboratory of Marginal Sea Geology,Guangzhou Institute of Geochemistry & South China Sea Institute of Oceanology, Chinese Academy of Sciences,Guangzhou 510640;2.Institute of Earth and Ocean Science,TongjiUniversity,Shanghai 200092;3.China University Geoscience, Beijing, 100083;4.Shengli Oil Field Limited Corporation, SINOPEC, Dongying, Shandong 257015 |
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| Abstract: | In spite of great economic sigificance, very little is known about the lacustrine carbonate rocks both at home and abroad. By the method of applying sequence stratigraphy, this paper particularly analyses the sequence developing model, sequence gradation division and controlling factors on lacustrine carbonate rocks, and put emphasis on parasequence types, distinguishing symbol, forming mechanism and correlation model. As a result, the sequence model of lacustrine carbonate rocks is summed up as steep slope model and gentle slope model. The units of high-resolution sequence are divided into sequence, tract system, parasequence sets, parasequence and microsequence. The parasequnce types are divided into steep slope type, gentle slope type and deep sag type, also divided into limestonemarl, shore, slipping and deep-water evaporate, and the controlling factor of different kinds of pamsequence is different. The contrasting models of parasequence are summed up as abruptly changing model of steep slope and gradually changing model of gentle slope, parasequence can regularly charge under different models. |
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| Keywords: | lacustrine carbonate rocks parasequence high resolution sequence model |
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