古新世—始新世界线的全球事件

doi:10.11867/j.issn.1001-8166.1996.03.0288

地球科学进展 ›› 1996, Vol. 11 ›› Issue (3): 288 -293. doi: 10.11867/j.issn.1001-8166.1996.03.0288

古新世—始新世界线的全球事件

王成善，刘志飞

成都理工学院成都 610059

收稿日期:1995-05-22 修回日期:1995-09-18 出版日期:1996-05-01
通讯作者: 王成善，男，1951年11月出生，教授，主要从事沉积盆地分析及环境沉积学研究。

GLOBAL EVENTS AT THE PALEOCENE-EOCENE BOUNDARY

Wang Chengshan; Liu Zhifei

Chengdu Institute of Technology, Chengdu 610059

Received:1995-05-22 Revised:1995-09-18 Online:1996-05-01 Published:1996-05-01

下载PDF ( 739 )

深海钻探揭示的古新世－始新世界线许多全球性变化引起了地质学家的普遍关注。这些变化表现在岩性、粘土矿物组合、大陆植物群、大陆哺乳动物、钙质超微化石、底栖有孔虫、氧碳同位素、大气环流强度、海洋环流模式、海平面等方面。通过对古新世－始新世地层沉积学、古生物学、古气候学和古海洋学的研究，确认古新世－始新世地层界线是全球构造事件的结果，表现为全球板块边界重组、扩张中心和转换断层模式改变、海底热液活动是一至二个数量级加强。

关键词: 古新世, 始新世, 界线, 全球事件, 构造

Lots of global changes at the Paleocene-Eocene boundary, Which were discovered by Deep Sea Drilling Project and which have been attracting geologists’ s attention, include: a change in lithology from glauconitic quartz sand to clay; a change in clay mineral suites from illite/smectite-dominated to kaolinite-dominated; the extinction and migration in the terrestrial flora; an increased species turnover rate in marine calcareous nanofossils; the extinction and lower diversity in the benthic foraminiferal assemblages; a considerable excursion in δ18O and δ13C values; a change in the evolution of land mammals; a significant reduction of the intensity of atmospheric circulation; a change in the style of abyssal circulation; an increase in water depth; and one to two order of magnitude increase in hydrothermal activity at the Paleocene-Eocene boundary. The Paleocene-Eocene boundary was the result of global tectonic events by researching lithology, palaeobiology, palaeoclimatology, palaeoceanography of the Paleocene-Eocene stratigraphic sections. The events include that global plate boundary rearrangement, changes in patterns of spreading centers and transform faults, and increase in hydrothermal activity.

Key words: Paleocene, Eocene, Boundary, Global event, Tectonics

[1]David k Rea, James C Zachos, Robert M Owen and Philip D Gingerich. Global change at the Paleocene-Eocene boundary, climates and evolutionary consequences of tectonic events. Palaegeography，Palaeoclimatology，Palaegeography,1990，(?9):117-128.
[2]Thomas G Gibson, Laurel M Bybell and James P Owens. Latest Paleocene lithologic and biotic events in neritic deposits of southwestern New Jersey. Paleoceanography,1993，8(4):495-514.
[3]Christian Robert and James P Kennett. Antarctic subtropical humid episode at the Paleocene-Eocene boundary:Clay-mineral evidence. Geology，1994(22):211-214.
[4]Paul L Koch, Jamas C Zochos and Philip D Gingerich. Correlation between isotope records in marine and continental carbon reservoirs near the Palaeocene/Eocene boundary. Nature,1992,358:23.
[5]Gibson Thomas G and Bybell Laurel M. Paleocene/Eocene ooundary strata and events in the U S Atlantic Coastal Plain.Journal of Vertebrate Paleontology,1993，13(3 suppl.):37.
[6]Kennett J P and Stott L D. Abrupt deep-sea warming, palaeoceanographic changes'and benthic extinctions at the end of the Palaeocene. Nature,1991, 353:225-229.
[7]Steven A Hovan,David K Rea. Paleocene/Eocene boundary changes in atmospheric and oceanic circulation;a southern hemisphere record. Geology，1992，20:15-18.
[8] Christian Robert and James P Kennett. Paleocene and Eocene kaolinite distribution in the South Atlantic and Southern Ocean;Antarctic climatic and paleoceanographic implications. Marine Geology，1992,103:99-110.
[9] Koch Paul L and Zachos James C. Mammalian biochronology of the Paleocene-Eocene boundary in North America,Europe and Asia. Journal of Vertebrate Paleontology，1993，13 ( 3 suppl.):47.
[10] Gunnell Gregg F.Bartels William Sand Gingerich Philip D. Paleocene-Eocene boundary in continental North America: Biostratigraphy and Geochronology. Northern Bighorn Basin, Wyoming. Journal of Vertebrate Paleontology,1993，13 (3 suppl):39.
[11] Williamson Thomas E and Lucas Spencer G. Paleocene-Eocene boundary in the San Juan Basin，New Mexico一Colorado. Journal of Vertebrate Paleontology,1993，13(3 suppl):63.
[12] Shackleton N and Boersma A. The climate of the eocene ocean. Journal of the Geological Society,London，1981,138:153-157.
[13] David K Rea,Margaret Leinen,Thomas R Janecek. Geologic approach to the long-term history of atmospheric circulation. Science，1985,227:721-725.
[14] Robert M Owen and David K Rea. Sea-floor hydrothermal activity links climatic to tectonics;The eocene carbon dioxide greenhouse. Science,1985，227:166-169.
[15] Norman H Sleep. Plate tectonics and the evolution of climate. U S National Report to International Union of Geodesy and Geophysics 1991-1994.1995.7:199-203.

[1]	熊国庆，江新胜，蔡习尧，伍皓. 藏南白垩系泥、页岩微量、稀土元素特征及氧化—还原环境分析[J]. 地球科学进展, 2010, 25(7): 730-745.
[2]	肖传桃,刘丰. 事件地层单位的理论及实践——以中扬子台地震旦—寒武纪界线事件集群为例[J]. 地球科学进展, 2010, 25(3): 290-296.
[3]	沈文杰,林杨挺,王道德,周永章,缪秉魁. 天然富勒烯及其在P-T界线地层的研究进展[J]. 地球科学进展, 2006, 21(9): 903-910.
[4]	朱华,阎丽春. 再论“田中线”和“滇西—滇东南生态地理（生物地理）对角线”的真实性和意义[J]. 地球科学进展, 2003, 18(6): 870-876.
[5]	刘志飞,胡修棉. 白垩纪至早第三纪的极端气候事件[J]. 地球科学进展, 2003, 18(5): 681-690.
[6]	拓守廷,刘志飞. 始新世—渐新世界线的全球气候事件：从“温室”到“冰室”[J]. 地球科学进展, 2003, 18(5): 691-696.
[7]	彭元桥;殷鸿福;杨逢清. 陆相二叠系—三叠系界线研究进展[J]. 地球科学进展, 2001, 16(6): 769-776.
[8]	黄思静,石和,刘洁,沈立成. 锶同位素地层学研究进展[J]. 地球科学进展, 2001, 16(2): 194-200.
[9]	马配学,高洪林,侯泉林. K/T界线铂族元素丰度异常与地外撞击事件[J]. 地球科学进展, 1999, 14(1): 24-30.
[10]	沈光隆,李克定. 中国石炭系中间界线生物地层研究新进展[J]. 地球科学进展, 1990, 5(4): 1-8.

阅读次数

全文

摘要