The first record of calcitarchs from the Takche Formation (Ordovician-Silurian), Himalaya (India)

被引：3

作者：

Vinn, Olev ^{[1
]}

Chaubey, Ravi S. ^{[2
]}

Singh, Birendra P. ^{[2
]}

Bhargava, Om N. ^{[2
]}

Prasad, Subhay K. ^{[2
]}

机构：

[1] Univ Tartu, Inst Ecol & Earth Sci, Dept Geol, Ravila 14a, EE-50411 Tartu, Estonia

[2] Panjab Univ, Dept Geol, Chandigarh 160014, India

来源：

PROCEEDINGS OF THE GEOLOGISTS ASSOCIATION | 2023年 / 134卷 / 5-6期

关键词：

Microfossils; Himalaya; Ordovician; Limestones; Gondwana; India; TARIM BASIN; SPITI; VALLEY; CYANOBACTERIA; ALGAE;

D O I：

10.1016/j.pgeola.2023.07.008

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

Limestones of the Takche Formation (Spiti, Himalaya) are characterized by normal marine fauna and flora typical for the Late Ordovician. The flora is represented by algae, mostly by receptaculitids and dasyclad green algae. Various calcareous microorganisms such as calcitarchs, Rothpletzella and Girvanella are present. There are some differences in the microfossil content and abundance between different lithofacies of the Takche Formation. Two main biofacies types could be recognized on the basis of the abundance of algae and calcitarchs, namely algal rich and algal poor biofacies. The abundance of dasyclad green algae in limestones of the Takche Formation is characteristic of the warm climate. The Himalaya (Gondwana) has calcitarchs in common with Baltica. (c) 2023 The Geologists' Association. Published by Elsevier Ltd. All rights reserved.

引用

页码：590 / 598

页数：9

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