西南石油大学学报(自然科学版) ›› 1993, Vol. 15 ›› Issue (1): 29-33.DOI: 10.3863/j.issn.1000-2634.1993.01.005
• 地质勘探 • 上一篇 下一篇
邓涛
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Deng Tao
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摘要： 重庆北培地区下三叠统飞仙关组泥灰岩中含量双壳类化石，其排列有一定规律。所研究的样本中，过壳味的壳体平分线与古水流方向一致，壳味相示水流方向。随机测量53个壳体，经数理统计，得出古水流方向应为294°，并证明贝壳层的沉积环境为泻湖潮坪上的潮渠。
关键词: 古生物化石, 双壳纲, 古水流方向, 重庆, 飞仙关组
Abstract: There are many fossils of Bivalvia in the marl of Feixianguan formation of Lower Triassic in Beibei,Chongqing.The shells' arrangement is regular.In the samples under study,the bisectors of the shells which pass through their beaks are parallel to the palaeocurrent sirection,and the beak indicates the current direction.After measuring 53 shells at random,we calcalated the palaeocurrent direction,which is 294,with mathematical statistics mathod,and proved these shell members ' sedimentary envirment to be tidal ditch on tidal flat of lagoon.
Key words: Paleobiologic fossil, Bivalvia, Palaeocurrent direction, Chongqing
中图分类号:
TE111.3
邓涛. 北培地区下三叠统飞仙关组的双壳类与古水流关系[J]. 西南石油大学学报(自然科学版), 1993, 15(1): 29-33.
Deng Tao. RELATION BETWEEN BIVALVIA AND PALAEOCURRENT IN FEIXIANGUAN FORMATION OF LOWER TRIASSIC IN BEIBEI，CHONGQING[J]. 西南石油大学学报(自然科学版), 1993, 15(1): 29-33.
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