伊朗中部库姆盆地早中新世有孔虫的分布与丰度

IF 1.3 4区地球科学 Q3 PALEONTOLOGY

Micropaleontology Pub Date : 2023-01-01 DOI:10.47894/mpal.69.3.03

J. Daneshian, L. Dana

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引用次数: 0

摘要

伊朗中部渐少-中新世沉积物沉积在连接地中海(特提斯西部)和印度洋(特提斯东部)的特提斯海道的一部分。库姆组沉积于特提斯海道东北部。为分析库姆组沉积环境，研究了Tigheh Reza Abad剖面(库姆组类型区)967 m厚度的底栖和浮游有孔虫64属106种，包括指示阿基坦期至burdigian期的指标种。在有孔虫多样性和丰度的基础上，划分出5个区系(I-V)。动物群组合反映了库姆盆地温暖浅海陆架由内陆架到外陆架的不同古环境梯度。

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Distribution and abundance of early Miocene foraminifera in the Qom Basin of Central Iran

The Oligo-Miocene sediments of Central Iran were deposited in part of the Tethyan Seaway connecting the Mediterranean Sea (western Tethys) to the Indian Ocean (eastern Tethys). The Qom Formation sediments were deposited in the northeastern part of the Tethyan Seaway. For analyzing the depositional environments of the Qom Formation in the Tigheh Reza Abad section (type area of the Qom Formation) samples through 967 m thickness were studied which yielded 64 genera and 106 species of benthic and planktic foraminifera, including index species indicative of Aquitanian to Burdigalian age. Five faunal associations (I-V) are recognized on the basis of foraminiferal diversity and abundance. The faunal associations indicate different paleoenvironments along a gradient from inner to outer shelf in the warm, shallow-marine Qom Basin.

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来源期刊

Micropaleontology 地学-古生物学

CiteScore

3.20

自引率

6.70%

发文量

审稿时长

>12 weeks

期刊介绍： The Journal of Micropalaeontology (JM) is an established international journal covering all aspects of microfossils and their application to both applied studies and basic research. In particular we welcome submissions relating to microfossils and their application to palaeoceanography, palaeoclimatology, palaeobiology, evolution, taxonomy, environmental change and molecular phylogeny. Owned by The Micropalaeontological Society, the scope of the journal is broad, demonstrating the application of microfossils to solving broad geoscience issues.