期刊文献+

黔中、黔南三叠纪古生态、古群落研究 被引量:10

PALAEOECOLOGY AND FOSSIL COMMUNITIES IN SOUTHERN AND CENTRAL GUIZHOU DURING TRIASSIC TIME
下载PDF
导出
摘要 本文在对黔中、黔南三叠纪古生物群的古生态,古环境作研究后,提出了中三叠统青岩组(或新苑组)中深水瓣鳃、菊石群落的堆积形成机理;贵州龙水生爬行动物群繁盛、埋藏、保存受控于拉丁期全球大海退以及特殊的台地边缘“S”形浅滩带上出现的半封闭海湾;同时,建立了由台地至深水的4个遗迹化石组合,牙形刺和瓣鳃类化石从浅水至深水沉积层中的分布系列。 The accummulation and genetic mechanism for the deep-water pelecypod and ammonoid communities in the Middle Triassic Qingyan Formation(or Xinyuan Formation)arediscussed in the present paper on the basis of palaeoecology and palaeoenvironments in southern and central Guizhou during Triassic time. The flourish,burial and preservation of the Kueichousaurus faunas were constrained by the major global regressions during the Ladinian and confined to the semi-enclosed gulfs in the special sigmoidal shoal zones of platform margins. The palaeoecological maps of the study area during the Olenikian,Anisian and early Ladinian are drawn in this paper. Four trace fossil assemblages and ichnofacies are established,and the models for the distribution of the conodonts and pelecypods from shallow-water to deep-water environments are herein suggested.
作者 杨瑞东
出处 《岩相古地理》 CSCD 1996年第6期42-47,共6页
关键词 古生态 古群落 三叠纪 贵州 palaeoecology, fossil community, Triassic, Guizhou
  • 相关文献

参考文献2

二级参考文献4

共引文献23

同被引文献134

引证文献10

二级引证文献65

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部