滇西保山金鸡地区三叠系上统大水塘组震积岩的发现及意义
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摘要
以往认为保山地区三叠系上统大水塘组为浅海沉积,通过1∶5万金鸡村等幅区域地质调查,本文认为保山三叠系上统大水塘组的背景沉积主体为一套钙质浊积岩,主要由A、E段组成,中部夹薄层状硅质岩(饥饿沉积),并伴有滑塌岩块,属斜坡—盆地环境,是永德—黑山裂谷(海槽)的一部分。笔者在大水塘组中首次发现了震积岩,包括振动液化卷曲变形构造、微同沉积断层、液化泥晶脉、震积不整合、地裂缝、液化角砾、液化眼球及由地震使沉积物液化流动形成的滑(流)积岩、滑(流)褶皱等资料,这些现象组合规律性极差,仅有少量有垂向组合层序,显示出地方性属种的色彩。微同沉积断层、液化泥晶脉几乎充满沉积的全过程。岩石遭敲击时,都会散发出极浓的油气味,显示出良好的烃源岩特征。因此,研究大水塘组震积岩的分布和形成对于恢复三叠系上统大水塘组古地理环境及寻找烃源岩都具有非常重要的现实意义。
Previously considered the Dashuitang Formation in the Upper Triassic series in Baoshan Area was shallow marine sedimentary environment.This paper argues that the background deposition of the Dashuitang Formation in the Upper Triassic series in Baoshan area subject to a calcareous turbidite by 1∶ 50000 regional geological survey of Jinji Village site.It is mainly composed of the A,E segment that sandwiched thin-bedded chert in central folder(Hunger deposition),accompanied by slump rock blocks,being classified for slope-basin environment,and is a part of the Yongde-Montenegro Rift Valley(Trough).For the first time,the author found the seismites in the Dashuitang Formation that including vibration liquefaction deformation structures,micro-fault with the micro deposition,liquefied micritic veins,seismic unconformity,fissure,liquefied breccia,liquefied eyeball,and sliding(Flowing) sedimentary rocks,slip(flow) folds,slump rock blocks of liquefied sediment flow of the earthquake.It is very poor that the regularity of combination of these phenomena.Only a small amount of them with vertical combination sequence that shows features of endemic species.Micro-Fault with the micro deposition and liquefied micritic veins are almost filled the whole process of the deposition.It can emit a very strong smell of oil when the rock was struck,that shows the good characteristics of hydrocarbon source rocks.Therefore,the study on the distribution and formation of seismites,Dashuitang Formation has very important practical significance that for the ancient paleogeographic environment of the Dashuitang Formation in the Upper Triassic series and the search for hydrocarbon source rocks.
Previously considered the Dashuitang Formation in the Upper Triassic series in Baoshan Area was shallow marine sedimentary environment.This paper argues that the background deposition of the Dashuitang Formation in the Upper Triassic series in Baoshan area subject to a calcareous turbidite by 1∶ 50000 regional geological survey of Jinji Village site.It is mainly composed of the A,E segment that sandwiched thin-bedded chert in central folder(Hunger deposition),accompanied by slump rock blocks,being classified for slope-basin environment,and is a part of the Yongde-Montenegro Rift Valley(Trough).For the first time,the author found the seismites in the Dashuitang Formation that including vibration liquefaction deformation structures,micro-fault with the micro deposition,liquefied micritic veins,seismic unconformity,fissure,liquefied breccia,liquefied eyeball,and sliding(Flowing) sedimentary rocks,slip(flow) folds,slump rock blocks of liquefied sediment flow of the earthquake.It is very poor that the regularity of combination of these phenomena.Only a small amount of them with vertical combination sequence that shows features of endemic species.Micro-Fault with the micro deposition and liquefied micritic veins are almost filled the whole process of the deposition.It can emit a very strong smell of oil when the rock was struck,that shows the good characteristics of hydrocarbon source rocks.Therefore,the study on the distribution and formation of seismites,Dashuitang Formation has very important practical significance that for the ancient paleogeographic environment of the Dashuitang Formation in the Upper Triassic series and the search for hydrocarbon source rocks.
引文
①1∶200000凤庆幅、保山幅区域地质调查报告
①赵云江等.灾变事件地层—斜坡滑塌(带)堆积:以滇西保山地区三叠系上统南梳坝组沉积环境为例(地质通报,待刊).
1宋天锐.北京十三陵前寒武碳酸盐岩地层中的一套可能的地震—海啸序列[J].科学通报,1988,38(8):609-611[Song Tianrui.Apossible seismic-tsunami sequence in Precambrian carbonate stratigra-phy in Shisanling Area,Beijing[J].Chinese Science Bulletin,1988,38(8):609-611]
2吴贤涛,尹国勋.四川峨嵋晚侏罗世湖泊沉积中震积岩的发现及意义[J].沉积学报,1992,10(1):133-134[Wu Xiantao,YinGuoxun.Features and significance of seismites from Upper Jurasic la-custrine deposites of Emei,Sichuan[J].Acta Sedimentologica Sinica,1992,10(1):133-134]
3罗冰,谭秀成,刘宏.川东地区飞一段震积岩的发现及识别标志[J].沉积学报,2009,27(5):1012-1017[Luo Bing,Tan Xi-ucheng,Liu Hong.Discovery and recognition marks of seismite of theFei 1 Member in the eastern Sichuan Basin[J].Acta SedimentologicaSinica,2009,27(5):1012-1017]
4袁静.中国震积作用和震积岩研究进展[J].石油大学学报,2005,29(1):144-147[Yuan Jing.Research of seismic depositionand seismites of China[J].Journal of the University of Petroleum,China,2005,29(1):144-147]
5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,1994,68(1):16-32[Qiao Xiufu,Song Tianrui,GaoLinzhi,et al.Seismic sequence in carbonate rocks by vibrational lique-faction[J].Acta Geologica Sinica,1994,68(1):16-32]
6梁定益,聂泽同,万晓樵,等.试论震积岩及震积不整合——以川西、滇西为例[J].现代地质,1991,5(1):138-145[Liang Dingyi,Nie Zetong,Wan Xiaoqiao,et al.On the seismites and seismodiconfor-mity:take the Western Sichuan and Western Yunnan Areas as an ex-ample[J].Geoscience,1991,5(1):138-145]
7梁定益,聂泽同,宋志敏.再论震积岩及震积不整合——以川西、滇西为例[J].地球科学-中国地质大学学报,1994,19(6):845-849[Liang Dingyi,Nie Zetong,Song Zhimin.A restudy on seismitesand seismic-unconformity:taking Western Sichuan and Western Yun-nan as an example[J].Earth Science-Journal of China University ofGeology,1994,19(6):845-849]
8孙晓猛,梁定益,聂泽同.大陆边缘震积岩序列——以金沙江中段震积岩为例[J].现代地质,1995,9(3):271-277[Sun Xi-aomeng,Liang Dingyi,Nie Zetong.Seismite sequence in continentalmargin:taking seismite in middle area of Jinsha river as an example[J].Geoscience,1995,9(3):271-277]
9杜远生,张传恒,韩欣.滇中中元古代昆阳群的地震事件沉积及其地质意义[J].中国科学:D辑,2001,31(4):283-289[DuYuansheng,Zhang Chuanheng,Han Xin.Earthquake events deposi-tion and geologic significance of Kunyang group in Mid-Proterozoic inDianzhong[J].Science in China:Series D,2001,31(4):283-289]
10夏青松,田景春.鄂尔多斯盆地南部上三叠统延长组震积岩的发现及地质意义[J].沉积学报,2007,25(2):246-249[Xia Qing-song,Tian Jingchun.Characteristics and geological significance ofseismites of the Yanchang Formation,Upper Triassic,Ordos Basin[J].Acta Sedimentologica Sinica,2007,25(2):246-249]
11林方成,潘桂棠.四川大渡河谷灯影期层状铅锌矿床中震积岩的发现及其成矿意义[J].中国科学:D辑,2006,36(11):998-1008[Ling Fangcheng,Pan Guitang.Characteristics and geologicalsignificance of seismites of the stratiform Pb and Zn deposit,DengyingAge,Sichuan Dadu River Valley[J].Science in China:Series D,2006,36(11):998-1008]
12陈世悦,袁文芳,鄢继华.济阳坳陷早第三纪震积岩的发现及地质意义[J].地质科学,2003,38(3):413-424[Chen Shiyue,Yuan Wenfang,Yan Jihua.Discovery and significance of earthquakeevent deposits of Early Tertiary in the Jiyang Depression[J].ChineseJournal of Geology,2003,38(3):413-424]
13付文利,王艳琴,杨光,等.东营凹陷沙三段、沙四段震积岩研究[J].油气地质与收采率,2004,11(2):6-8[Fu Wenli,WangYanqin,Yang Guang,et al.Study on seismite of Sha3 and Sha4member in Dongying sag[J].Petroleum Geology and Recovery Effi-ciency,2004,11(2):6-8]
14云南省地质矿产局.云南省区域地质志[M].北京:地质出版社,1990[Bureau of Geology and Mineral Resources of Yunnan Prov-ince.Regional Geology of Yunnan Province[M].Beijing:GeologicalPublishing House,1990]
15张远志,张定辉,刘世荣.云南省岩石地层[M].武汉:中国地质大学出版社,1996[Zhang Yuanzhi,Zhang Dinghui,Liu Shi-rong.Lithostratigraphy of Yunnan Province[M].Wuhan:China Uni-versity of Geosciences Press,1996]
16钟大赉等著.滇川西部古特提期造山带[M].北京:科学出版社,1998[Zhong Dalai.Orogenic Belt in Paleo-Tethys of WesternYunnan and Sichuan[M].Beijing:Science Press,1998]
17刘宝珺,曾允孚.岩相古地理基础和工作方法[M].北京:地质出版社,1985:160-187[Liu Baojun,Zen Yunfu.Foundation andWorking Method of Lithofacies Paleogeography[M].Beijing:Geolog-ical Publishing House,1985:160-187
18魏家庸,卢重明,徐怀艾.沉积岩区1∶5万区域地质填图方法指南[M].武汉:中国地质大学出版社,1991:29-86[Wei Jiayong,Lu Chongming,Xu Huaiai.A Guide of the Method of the 1∶50000Regional Geological Survey in Sedimentary Rocks Areas[M].Wu-han:China University of Geosciences Press,1991:29-86]
19燕守勋,王桂梁,邵震杰,等.鲁西地壳隆升的伸展构造模式[J].地质学报,1996,70(1):1-9[Yan Shouxun,Wang Guil-iang,Shao Zhenjie.Extensional tectonic model of crustal elevation inwestern Shandong[J].Acta Geologica Sinica,1996,70(1):1-9]
20马杏垣.论伸展构造[J].地球科学-武汉地质学院学报,1982,3(18):15-20[Ma Xingyuan.On extensional tectonics[J].EarthScience-Journal of Wuhan College of Geology,1982,3(18):15-20]
①赵云江等.灾变事件地层—斜坡滑塌(带)堆积:以滇西保山地区三叠系上统南梳坝组沉积环境为例(地质通报,待刊).
1宋天锐.北京十三陵前寒武碳酸盐岩地层中的一套可能的地震—海啸序列[J].科学通报,1988,38(8):609-611[Song Tianrui.Apossible seismic-tsunami sequence in Precambrian carbonate stratigra-phy in Shisanling Area,Beijing[J].Chinese Science Bulletin,1988,38(8):609-611]
2吴贤涛,尹国勋.四川峨嵋晚侏罗世湖泊沉积中震积岩的发现及意义[J].沉积学报,1992,10(1):133-134[Wu Xiantao,YinGuoxun.Features and significance of seismites from Upper Jurasic la-custrine deposites of Emei,Sichuan[J].Acta Sedimentologica Sinica,1992,10(1):133-134]
3罗冰,谭秀成,刘宏.川东地区飞一段震积岩的发现及识别标志[J].沉积学报,2009,27(5):1012-1017[Luo Bing,Tan Xi-ucheng,Liu Hong.Discovery and recognition marks of seismite of theFei 1 Member in the eastern Sichuan Basin[J].Acta SedimentologicaSinica,2009,27(5):1012-1017]
4袁静.中国震积作用和震积岩研究进展[J].石油大学学报,2005,29(1):144-147[Yuan Jing.Research of seismic depositionand seismites of China[J].Journal of the University of Petroleum,China,2005,29(1):144-147]
5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,1994,68(1):16-32[Qiao Xiufu,Song Tianrui,GaoLinzhi,et al.Seismic sequence in carbonate rocks by vibrational lique-faction[J].Acta Geologica Sinica,1994,68(1):16-32]
6梁定益,聂泽同,万晓樵,等.试论震积岩及震积不整合——以川西、滇西为例[J].现代地质,1991,5(1):138-145[Liang Dingyi,Nie Zetong,Wan Xiaoqiao,et al.On the seismites and seismodiconfor-mity:take the Western Sichuan and Western Yunnan Areas as an ex-ample[J].Geoscience,1991,5(1):138-145]
7梁定益,聂泽同,宋志敏.再论震积岩及震积不整合——以川西、滇西为例[J].地球科学-中国地质大学学报,1994,19(6):845-849[Liang Dingyi,Nie Zetong,Song Zhimin.A restudy on seismitesand seismic-unconformity:taking Western Sichuan and Western Yun-nan as an example[J].Earth Science-Journal of China University ofGeology,1994,19(6):845-849]
8孙晓猛,梁定益,聂泽同.大陆边缘震积岩序列——以金沙江中段震积岩为例[J].现代地质,1995,9(3):271-277[Sun Xi-aomeng,Liang Dingyi,Nie Zetong.Seismite sequence in continentalmargin:taking seismite in middle area of Jinsha river as an example[J].Geoscience,1995,9(3):271-277]
9杜远生,张传恒,韩欣.滇中中元古代昆阳群的地震事件沉积及其地质意义[J].中国科学:D辑,2001,31(4):283-289[DuYuansheng,Zhang Chuanheng,Han Xin.Earthquake events deposi-tion and geologic significance of Kunyang group in Mid-Proterozoic inDianzhong[J].Science in China:Series D,2001,31(4):283-289]
10夏青松,田景春.鄂尔多斯盆地南部上三叠统延长组震积岩的发现及地质意义[J].沉积学报,2007,25(2):246-249[Xia Qing-song,Tian Jingchun.Characteristics and geological significance ofseismites of the Yanchang Formation,Upper Triassic,Ordos Basin[J].Acta Sedimentologica Sinica,2007,25(2):246-249]
11林方成,潘桂棠.四川大渡河谷灯影期层状铅锌矿床中震积岩的发现及其成矿意义[J].中国科学:D辑,2006,36(11):998-1008[Ling Fangcheng,Pan Guitang.Characteristics and geologicalsignificance of seismites of the stratiform Pb and Zn deposit,DengyingAge,Sichuan Dadu River Valley[J].Science in China:Series D,2006,36(11):998-1008]
12陈世悦,袁文芳,鄢继华.济阳坳陷早第三纪震积岩的发现及地质意义[J].地质科学,2003,38(3):413-424[Chen Shiyue,Yuan Wenfang,Yan Jihua.Discovery and significance of earthquakeevent deposits of Early Tertiary in the Jiyang Depression[J].ChineseJournal of Geology,2003,38(3):413-424]
13付文利,王艳琴,杨光,等.东营凹陷沙三段、沙四段震积岩研究[J].油气地质与收采率,2004,11(2):6-8[Fu Wenli,WangYanqin,Yang Guang,et al.Study on seismite of Sha3 and Sha4member in Dongying sag[J].Petroleum Geology and Recovery Effi-ciency,2004,11(2):6-8]
14云南省地质矿产局.云南省区域地质志[M].北京:地质出版社,1990[Bureau of Geology and Mineral Resources of Yunnan Prov-ince.Regional Geology of Yunnan Province[M].Beijing:GeologicalPublishing House,1990]
15张远志,张定辉,刘世荣.云南省岩石地层[M].武汉:中国地质大学出版社,1996[Zhang Yuanzhi,Zhang Dinghui,Liu Shi-rong.Lithostratigraphy of Yunnan Province[M].Wuhan:China Uni-versity of Geosciences Press,1996]
16钟大赉等著.滇川西部古特提期造山带[M].北京:科学出版社,1998[Zhong Dalai.Orogenic Belt in Paleo-Tethys of WesternYunnan and Sichuan[M].Beijing:Science Press,1998]
17刘宝珺,曾允孚.岩相古地理基础和工作方法[M].北京:地质出版社,1985:160-187[Liu Baojun,Zen Yunfu.Foundation andWorking Method of Lithofacies Paleogeography[M].Beijing:Geolog-ical Publishing House,1985:160-187
18魏家庸,卢重明,徐怀艾.沉积岩区1∶5万区域地质填图方法指南[M].武汉:中国地质大学出版社,1991:29-86[Wei Jiayong,Lu Chongming,Xu Huaiai.A Guide of the Method of the 1∶50000Regional Geological Survey in Sedimentary Rocks Areas[M].Wu-han:China University of Geosciences Press,1991:29-86]
19燕守勋,王桂梁,邵震杰,等.鲁西地壳隆升的伸展构造模式[J].地质学报,1996,70(1):1-9[Yan Shouxun,Wang Guil-iang,Shao Zhenjie.Extensional tectonic model of crustal elevation inwestern Shandong[J].Acta Geologica Sinica,1996,70(1):1-9]
20马杏垣.论伸展构造[J].地球科学-武汉地质学院学报,1982,3(18):15-20[Ma Xingyuan.On extensional tectonics[J].EarthScience-Journal of Wuhan College of Geology,1982,3(18):15-20]
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