青海南部晚三叠世结扎群孢粉和疑源类

冀六祥; 王从风

doi:10.11781/sysydz199004438

青海南部晚三叠世结扎群孢粉和疑源类

doi: 10.11781/sysydz199004438

冀六祥¹,
王从风²

1.
青海省第二区域地质调查队
2. 地质矿产部石油地质中心实验室无锡

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出版历程
- 收稿日期: 1989-07-05
- 刊出日期: 1990-10-25

LATE TRIASSIC SPORE-POLLEN AND ACRITARCHS IN JIEZA GROUP, SOUTHERN QINGHAI PROVINCE

Ji Liuxiang¹,
Wang Congfeng²

1.
No.2 Regional Geology Survey, Qinghai Province
2. Central Laboratory of Petroleum Geology, MGMR

摘要

摘要: 本论文材料来源于青海省南部结扎群,共发现孢粉和疑源类化石51属70种,其中包括一个新种。组合中羊齿类孢子为45%,裸子植物花粉为34%,疑源类21%。孢子中主要为Apiculatisporis 7.9%, Punctatisporites 6%, Dictyophyllidites 3.7%, Raistrickia 3.6%, Lycopodiacidites 2.7%, Lophotriletes 2%, Concavisporites 1.5%, Marattisporites 1.5%, Undulatisporites 1.2%等。花粉主要为Chordasporites 6.7%, Psophosphaeva 3.9%, Ovalipollis 3.6%, Caytoni pollenites2.7%,Cycadopites 3.9%等等,疑源类主要为Micrhystridiam 9.1%, Brocholaminaria 2.2%, Laminarites1.2%等等。这些微体化石组合地质时代属于晚三叠世。

Abstract: Abundant spore-pollen and Acritarchs are found in Jieza Group (southern Qinghai), altogether 51 genera, 70 species, including a species nov.. The microfossil assemblage is made of fernlike spores (45%); Gymnos-permous pollens (34%) 5 Acritarchs (21%).Major spores consist of Apiculatisporis (7.9%), Punctatisporites (6%); Dictyophllidites (3.7%); Raistrickia (3.6%); Lycopodiacidites (2.7%); Lophotriletes(2%); Concorisporites (1.5%); Marattisporites (1.5%); Vndula tisporites (1.2%), etc.. Pollens are mainly composed of Chordasporites(6.5%), Psophosphaera (3.9%) 5 Ovalipollis (3.6%); Pinites (2%); Caytonipollenites (2.7%); Cycadopites(3.9%),etc.. Dominant Acritarchs are Micrhystridium(9.1%), Brocholaminaria (2.2%), Laminarites (1.2%).etc.. The geological age of those microfossils is late Triassic.

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参考文献(11)

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