高北极地区钙质有孔虫新种:附近海洋终止冰川的潜在指示物

IF 0.9 4区地球科学 Q4 PALEONTOLOGY

Journal of Foraminiferal Research Pub Date : 2020-04-01 DOI:10.2113/gsjfr.52.2.219

A. Jennings, M. Seidenkrantz, K. Knudsen

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引用次数: 7

摘要

在格陵兰岛西北部纳雷斯海峡北部和彼得曼峡湾以及格陵兰岛东北部扎卡里亚伊-伊斯布雷附近的地表样本中，以及在巴芬湾北部和格陵兰岛东北陆架的全新世早期沉积物中，观察到了一种新的钙质北极有孔虫，属于Miliolina亚目Glomulina oculus n.sp。在一些样本中，这种新的瓷器物种在有孔虫群落中占了很大一部分，特别是在含沙量相对较大的样本中，我们认为这种物种表明北极环境中有海洋终止冰川。然而，还需要进一步的研究来确定其完整的栖息地范围。

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Glomulina oculus, New Calcareous Foraminiferal Species from the High Arctic: A Potential Indicator of a Nearby Marine-Terminating Glacier

A new calcareous Arctic foraminiferal species, Glomulina oculus n. sp., belonging to the suborder Miliolina has been observed in surface samples from northern Nares Strait and Petermann Fjord, NW Greenland, and off Zachariae Isbrae, NE Greenland, as well as in early Holocene sediments from the northern Baffin Bay region and on the NE Greenland shelf. In some samples, this new porcelaneous species makes up a significant fraction of the foraminiferal assemblage, particularly in samples with a relatively large sand content, and we suggest that this species is indicative of an Arctic environment with marine-terminating glaciers. Yet, further studies are needed to ascertain its full habitat range.

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来源期刊

Journal of Foraminiferal Research 地学-古生物学

CiteScore

2.10

自引率

9.10%

发文量

审稿时长

>12 weeks

期刊介绍： JFR publishes original papers of international interest dealing with the Foraminifera and allied groups of organisms. Review articles are encouraged.