华蓥山中侏罗统沙溪庙组页岩叶肢介化石分析
|
摘要
华蓥山地区的中侏罗世—晚侏罗世沙溪庙组页岩中有一叶肢介化石富集层"叶肢介页岩"。叶肢介化石一般出现在陆相地层中,由于它数量多、演化快、分布广泛,近年来已成为中国和邻近地区中生代非海相生物地层划分和对比研究的重要手段之一。通过对叶肢介化石形态功能和现代叶肢介生活环境的分析和华蓥山地区叶肢介埋藏情况的研究,对其在中侏罗统的古环境进行了重塑,该文着重论述了叶肢介的演变和古环境的变化以及古环境变化对"叶肢介页岩"形成的影响。
The shale of the Middle Jurassic Shaximiao Formation in Huayingshan is rich in Estheria fossils. The Estheria fossils are generally found in continental strata, in recent years it has become an important indicator of non marine Mesozoic stratigraphic correlation in China and neighboring regions because of its large number, rapid evolution and widespread distribution. According to the analysis of shape, habits and occurrence of Estheria, this paper has a discussion on paleogeographic and paleoenvironment in the eastern Sichuan area in the Middle Jurassic.
The shale of the Middle Jurassic Shaximiao Formation in Huayingshan is rich in Estheria fossils. The Estheria fossils are generally found in continental strata, in recent years it has become an important indicator of non marine Mesozoic stratigraphic correlation in China and neighboring regions because of its large number, rapid evolution and widespread distribution. According to the analysis of shape, habits and occurrence of Estheria, this paper has a discussion on paleogeographic and paleoenvironment in the eastern Sichuan area in the Middle Jurassic.
引文
[1]郭正吾.四川盆地形成与演化[M].地质出版社,1996.03:117-119.
[2]四川省地质矿产局.四川区域地质志[M].地质出版社,1991.04:257-260.
[3]唐庆.川南侏罗系沙溪庙组与新田沟组特征及其接触关系[J].四川地质学报,1997,17(2):103-106.
[4]王思恩.热河生物群的古生态与古环境—冀北、辽西叶肢介群落古生态与古环境重建[J].地质学报,1999.04:291-292.
[5]李罡.中国侏罗纪—白垩纪叶肢介生物地层学及古地理区系[J].地层学杂志,2013.04.
[6]王思恩.力学与叶肢介的演化及其形态功能分析[J].中国科学(B辑),1988.11:1026.
[7]王思恩.内蒙白彦花水塘中现生叶肢介的生态考察及其对古环境重建的意义[J].古地理学报,2008.02:205-206.
[8]陈丕基,沈炎彬.从叶肢介化石看大陆漂移[J].化石,1977.02:13-14.
[9]肖传桃.古生物学与地史学概论[M].石油工业出版社,2007.08:243.
[10]陈秉麟.为什么在上第三系找不到叶肢介化石?—叶肢介身世第三谜解[J].化石,2001.01:29-31.
[11]张文堂,陈丕基,沈炎彬.中国各门类化石中国的叶肢介化石[M].科学出版社,1976.
[12]四川人民出版社.四川盆地陆相中生代地层古生物[M].1984.
[2]四川省地质矿产局.四川区域地质志[M].地质出版社,1991.04:257-260.
[3]唐庆.川南侏罗系沙溪庙组与新田沟组特征及其接触关系[J].四川地质学报,1997,17(2):103-106.
[4]王思恩.热河生物群的古生态与古环境—冀北、辽西叶肢介群落古生态与古环境重建[J].地质学报,1999.04:291-292.
[5]李罡.中国侏罗纪—白垩纪叶肢介生物地层学及古地理区系[J].地层学杂志,2013.04.
[6]王思恩.力学与叶肢介的演化及其形态功能分析[J].中国科学(B辑),1988.11:1026.
[7]王思恩.内蒙白彦花水塘中现生叶肢介的生态考察及其对古环境重建的意义[J].古地理学报,2008.02:205-206.
[8]陈丕基,沈炎彬.从叶肢介化石看大陆漂移[J].化石,1977.02:13-14.
[9]肖传桃.古生物学与地史学概论[M].石油工业出版社,2007.08:243.
[10]陈秉麟.为什么在上第三系找不到叶肢介化石?—叶肢介身世第三谜解[J].化石,2001.01:29-31.
[11]张文堂,陈丕基,沈炎彬.中国各门类化石中国的叶肢介化石[M].科学出版社,1976.
[12]四川人民出版社.四川盆地陆相中生代地层古生物[M].1984.