俄罗斯西北部上奥陶世的麻粒岩

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Accounts of Chemical Research Pub Date : 2017-12-24 DOI:10.4267/2042/64289

O. Vinn, A. Madison

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引用次数: 4

摘要

在俄罗斯西北部的Rakwere地区阶段出现了四种玉米粒。本文报道了一个新的种：罗马隐孢子虫（Conchicolites roscicus）；它是已知的最早的巴尔蒂卡奥陶纪的海鞘岩。新物种有非常小的管，有尖锐、坚固和规则的环空。Pechurki采石场Rakwere区域阶段的玉米粒的多样性通常发生在Baltica的上奥陶世。Pechurki采石场的玉米粒在泥底（粘土和碳酸盐粘土）环境中包裹着坚硬的有机基质。斯特林麻粒岩分布于北美洲上奥陶世和巴尔蒂卡，这表明这两个古大陆之间的距离很短和/或环境条件相似。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Cornulitids from the Upper Ordovician of northwestern Russia

Four cornulitid species occur in the Rakvere Regional Stage in NW Russia. The new species Conchicolites rossicus is here described; it is the earliest known Conchicolites from the Ordovician of Baltica. The new species has very small tubes with sharp, strong and regular annulations. The diversity of cornulitids in the Rakvere Regional Stage at the Pechurki quarry is usual for the Upper Ordovician of Baltica. The cornulitids of Pechurki quarry encrusted hard organic substrates in a mud bottom (clay and carbonate clay) environment. Cornulites sterlingensis occurs both in the Upper Ordovician of North America and Baltica, which suggest a short distance between these two paleocontinents and/or similar environmental conditions.

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.