四川广元上寺剖面长兴阶放射虫动物群演变及控制因素
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摘要
对四川广元上寺剖面大隆组的放射虫动物群进行了详细的鉴定和丰度、分异度的统计。发现该放射虫动物群丰度和分异度均较低,以泡沫虫和内射虫为主,含少量十字多囊虫的分子;其丰度和分异度与长兴期海平面变化具有很好的耦合关系:放射虫丰度、分异度较大的层位对应于长兴早期和长兴晚期两次最大海侵事件发生的层位。相对长兴晚期而言,长兴早期放射虫的丰度和分异度较大,这与长兴早期水体相对较深有关。此外,有孔虫与放射虫丰度变化呈现很好的负相关性,这与它们不同的生活习性和水深的变化有关。分析表明:水深的变化是上寺剖面放射虫动物群演变的主要控制因素。
A well-preserved Changshingian radiolarian fauna was obtained from bedded siliceous limestone and interbedded siliceous shale of the Dalong Formation in Shangsi area,Guangyuan,Sichuan,South China.The radiolarian species in each sample were identified,and the individuals in 1g samples(sieved through 300 meshes ) were counted out.In general,most of the encountered specimens are Spumellaria and Entactinaria.Neither the abundance nor the diversity of it is high.The research shows that the abundance and diversity are closely related to sea level changes of Changhsingian age at the Shangsi Section.Where abundance and diversity reached higher values,the sea level would have peaked(marine flooding surfaces ).The abundance and diversity of radiolarians from the early Changhsingian is greater than that of the late Changhsingian age,which coincides with the opinion that the marine water was deeper in the early Changhsingian than that in the late Changhsingian.Furthermore, foraminifer and radiolarian abundance showed a good negative correlation which may be caused by their different living habits and changes of water depth.Analysis shows that:the development of the Late Permian radiolarian fauna of the Shangsi Section,may result from changes of water depth.
A well-preserved Changshingian radiolarian fauna was obtained from bedded siliceous limestone and interbedded siliceous shale of the Dalong Formation in Shangsi area,Guangyuan,Sichuan,South China.The radiolarian species in each sample were identified,and the individuals in 1g samples(sieved through 300 meshes ) were counted out.In general,most of the encountered specimens are Spumellaria and Entactinaria.Neither the abundance nor the diversity of it is high.The research shows that the abundance and diversity are closely related to sea level changes of Changhsingian age at the Shangsi Section.Where abundance and diversity reached higher values,the sea level would have peaked(marine flooding surfaces ).The abundance and diversity of radiolarians from the early Changhsingian is greater than that of the late Changhsingian age,which coincides with the opinion that the marine water was deeper in the early Changhsingian than that in the late Changhsingian.Furthermore, foraminifer and radiolarian abundance showed a good negative correlation which may be caused by their different living habits and changes of water depth.Analysis shows that:the development of the Late Permian radiolarian fauna of the Shangsi Section,may result from changes of water depth.
引文
陈木宏,谭智源.1996.南海中、北部沉积物中的放射虫.北京:科学出版社,1-325.
陈木宏.2009.中国新生代海洋微体古生物学研究现状与发展.古生物学报,48(3):577-588
冯庆来.1992.放射虫古生态的初步研究地质科技情报,11(2):41 -46.
何卫红.2006.煤山D剖面的放射虫动物群与海平面变化.地球科学,31(2):159-164
金若谷,黄恒铨.1987.四川广元上寺二叠系—三叠系界线剖面沉积特征及环境演变.地层古,生物论文集(第18辑),32-75.
李子舜,詹立培,朱秀芳,张景华,金若谷,刘桂芳,盛怀斌,沈桂梅,戴进业,黄恒铃,谢隆春,严正.1986.古生代—中生代之交的生物绝灭和地质事件——四川广元上寺二叠系—三叠系界线和事件的初步研究地质学报,1:1-15.
李子舜,詹立培,戴进业,金若谷,朱秀芳,张景华,黄恒铃,徐道一,严正,李华梅.1989.川北陕南二叠—三叠纪生物地层及事件地层学研究.北京:地质出版社,166-171.
罗进雄,何幼斌.2011.中上扬子地区二叠纪缺氧环境.古地理学报,13(1):11-20.
谭智源,陈木宏.1999.中国近海的放射虫.北京:科学出版社,1- 50.
谭智源.2007.海洋领域放射虫研究五十年.微体古生物学报,24 (4):374-384.
唐德海,曾婷婷.2010川东南北部石家场长兴组层序—沉积相特征.中国矿业,19(9):113-117.
童金南,殷鸿福.1999.浙江长兴煤山剖面Griesbachian期旋回地层研究.地层学杂志,23(2):130-135.
王汝建,Abelmann A,黄宝琦.2000.南海更新世以来Botryocyrtis scutum(放射虫)的丰度变化及其地层和古海洋学意义.地球科学,25(6):553-556.
王汝建,陈荣华.1996.冲绳海槽南部表层沉积物中的放射虫的初步研究.同济大学学报,24(6):670-676.
王汝建,陈荣华.2004.白令海表层沉积物中硅质生物的变化及其环境控制因素.地球科学,29(6):685-690.
王汝建,陈荣华,肖文申.2005.白令海表层沉积物中放射虫的深层分布特征及其海洋学意义.微体古生物学报,22(2):127-135.
殷鸿福,丁梅华,张克信,章金南,赖旭龙.1995.扬子及其周缘东吴—印支期生态地层学.北京:科学出版社,73-122.
Ynshimichi Kajiwara.1995.P/T之交一个大量缺氧的分层洋的发育及其水体的短暂大规模混合作用——以硫同位素记录为证.地质科学译丛,12(3):29-34.
邹灏,陈洪德.林良彪.陈安清,隆轲,淡永.范昱.2011.贵州平塘地区上二叠统长兴组沉积相与层序地层特征.中国地质,38(1): 25-32.
De Wever P.Dumitrica P,Caulet J P.2001.Radiolarians in the sedimentary record.Singapore:Gordon and Breach Science Publishers,30-31.
Fang Nianqiao,Feng Qinglai.1996.Devonian to Triassic Tethvs in western Yunnan.Wuhan:China University of Geoscienees Press,1 -135.
Kozur H W,Krainer K,Mostler H.1996.Ichnology and sedimentology of the Early Permian deep-water deposits from the LercaraRoceapalumba Area(Western Sicily Italy).Facies,34(1):123 - 150.
Kozur H.1993.Upper Permian radiolarians from the Sosio Valley area. Western Sicily(Italy) and from the upper most Lamar limestone of West Texas.Jahrbuchder Geology is ehen Bundes anstalt Wien,136 (1):99-123.
Jiang Haishui,Lai Xulong,Yan Chunbo,Aldridge K J,Paul W,Sun Yadong.2011.Revised conodont zonation and conodont evolution across the Permian—Triassicboundary at the Shangsi section, Guangyuan,Sichuan,South China.Global and Planetary Change, 77(3 -4):103 -115.
Noble PJ,Naraoka H,Poulson S R,Fukui F,Jin Yuxi,Sarah O' connor.201 1.Paleohvdrographic influences on Permian radiolarians in the Lamar Limestone,Guadalupe Mountains,west Texas, elucidated by organic biotnarker and stable isotope geochemistry. Palaios,26:180-186.
Tan Zhiyuan,Chen Muhong.1999.Off shore radiolarian from China. Beijing:Science Press,72 -82.
Wang Rujian,Abelmann A.2000.Abrupt changes of radiolarian fauna at 600 and 120 ka B.P.in the southern South China Sea and their paleoceanographic implications.Acta Oceanologica Sinica,19(3): 131 -138.
Wang Rujian,Abelmann A,Huang Baoqi.2000.Relative abundance changes,stratigraphie and palaeooeeanographic significance of radiolarian Botryocyrtis scutum in South China Sea since Pleistocene.Earth Science Journal of China University of Geosciences,25(6):553 -556.
Wang Rujian,Chen Ronghua.2004.Varialions of siliceous micro organisms in surface sediments of the Bering Sea and their environmental control factors.Earth Science Journal of China University of Geosciences,29(6):685 -690.
Yao Akira,Kuwahara Kiyoko.1999.Middle—Late Permian Radiolarians from the Guangyuan Shangsi Area.Journal of Geosciences,Osaka City University,42(5):69-83.
Zhang Kexin,Tong Jinnan,Yin Hongfu,Wu Shunbao.1997.Sequence stratigraphy of the Permian—Triassic boundary section of Changxing,Zhejiang,southern China.Acta Geologica Sinica,71 (1):90-103.
陈木宏.2009.中国新生代海洋微体古生物学研究现状与发展.古生物学报,48(3):577-588
冯庆来.1992.放射虫古生态的初步研究地质科技情报,11(2):41 -46.
何卫红.2006.煤山D剖面的放射虫动物群与海平面变化.地球科学,31(2):159-164
金若谷,黄恒铨.1987.四川广元上寺二叠系—三叠系界线剖面沉积特征及环境演变.地层古,生物论文集(第18辑),32-75.
李子舜,詹立培,朱秀芳,张景华,金若谷,刘桂芳,盛怀斌,沈桂梅,戴进业,黄恒铃,谢隆春,严正.1986.古生代—中生代之交的生物绝灭和地质事件——四川广元上寺二叠系—三叠系界线和事件的初步研究地质学报,1:1-15.
李子舜,詹立培,戴进业,金若谷,朱秀芳,张景华,黄恒铃,徐道一,严正,李华梅.1989.川北陕南二叠—三叠纪生物地层及事件地层学研究.北京:地质出版社,166-171.
罗进雄,何幼斌.2011.中上扬子地区二叠纪缺氧环境.古地理学报,13(1):11-20.
谭智源,陈木宏.1999.中国近海的放射虫.北京:科学出版社,1- 50.
谭智源.2007.海洋领域放射虫研究五十年.微体古生物学报,24 (4):374-384.
唐德海,曾婷婷.2010川东南北部石家场长兴组层序—沉积相特征.中国矿业,19(9):113-117.
童金南,殷鸿福.1999.浙江长兴煤山剖面Griesbachian期旋回地层研究.地层学杂志,23(2):130-135.
王汝建,Abelmann A,黄宝琦.2000.南海更新世以来Botryocyrtis scutum(放射虫)的丰度变化及其地层和古海洋学意义.地球科学,25(6):553-556.
王汝建,陈荣华.1996.冲绳海槽南部表层沉积物中的放射虫的初步研究.同济大学学报,24(6):670-676.
王汝建,陈荣华.2004.白令海表层沉积物中硅质生物的变化及其环境控制因素.地球科学,29(6):685-690.
王汝建,陈荣华,肖文申.2005.白令海表层沉积物中放射虫的深层分布特征及其海洋学意义.微体古生物学报,22(2):127-135.
殷鸿福,丁梅华,张克信,章金南,赖旭龙.1995.扬子及其周缘东吴—印支期生态地层学.北京:科学出版社,73-122.
Ynshimichi Kajiwara.1995.P/T之交一个大量缺氧的分层洋的发育及其水体的短暂大规模混合作用——以硫同位素记录为证.地质科学译丛,12(3):29-34.
邹灏,陈洪德.林良彪.陈安清,隆轲,淡永.范昱.2011.贵州平塘地区上二叠统长兴组沉积相与层序地层特征.中国地质,38(1): 25-32.
De Wever P.Dumitrica P,Caulet J P.2001.Radiolarians in the sedimentary record.Singapore:Gordon and Breach Science Publishers,30-31.
Fang Nianqiao,Feng Qinglai.1996.Devonian to Triassic Tethvs in western Yunnan.Wuhan:China University of Geoscienees Press,1 -135.
Kozur H W,Krainer K,Mostler H.1996.Ichnology and sedimentology of the Early Permian deep-water deposits from the LercaraRoceapalumba Area(Western Sicily Italy).Facies,34(1):123 - 150.
Kozur H.1993.Upper Permian radiolarians from the Sosio Valley area. Western Sicily(Italy) and from the upper most Lamar limestone of West Texas.Jahrbuchder Geology is ehen Bundes anstalt Wien,136 (1):99-123.
Jiang Haishui,Lai Xulong,Yan Chunbo,Aldridge K J,Paul W,Sun Yadong.2011.Revised conodont zonation and conodont evolution across the Permian—Triassicboundary at the Shangsi section, Guangyuan,Sichuan,South China.Global and Planetary Change, 77(3 -4):103 -115.
Noble PJ,Naraoka H,Poulson S R,Fukui F,Jin Yuxi,Sarah O' connor.201 1.Paleohvdrographic influences on Permian radiolarians in the Lamar Limestone,Guadalupe Mountains,west Texas, elucidated by organic biotnarker and stable isotope geochemistry. Palaios,26:180-186.
Tan Zhiyuan,Chen Muhong.1999.Off shore radiolarian from China. Beijing:Science Press,72 -82.
Wang Rujian,Abelmann A.2000.Abrupt changes of radiolarian fauna at 600 and 120 ka B.P.in the southern South China Sea and their paleoceanographic implications.Acta Oceanologica Sinica,19(3): 131 -138.
Wang Rujian,Abelmann A,Huang Baoqi.2000.Relative abundance changes,stratigraphie and palaeooeeanographic significance of radiolarian Botryocyrtis scutum in South China Sea since Pleistocene.Earth Science Journal of China University of Geosciences,25(6):553 -556.
Wang Rujian,Chen Ronghua.2004.Varialions of siliceous micro organisms in surface sediments of the Bering Sea and their environmental control factors.Earth Science Journal of China University of Geosciences,29(6):685 -690.
Yao Akira,Kuwahara Kiyoko.1999.Middle—Late Permian Radiolarians from the Guangyuan Shangsi Area.Journal of Geosciences,Osaka City University,42(5):69-83.
Zhang Kexin,Tong Jinnan,Yin Hongfu,Wu Shunbao.1997.Sequence stratigraphy of the Permian—Triassic boundary section of Changxing,Zhejiang,southern China.Acta Geologica Sinica,71 (1):90-103.
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