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Lookup NU author(s): Dr Bethan DaviesORCiD
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© 2019 Geological Society of America.Depositional evidence for glaciation (dropstones, diamictites) is common in Neoproterozoic strata, and often debated, but erosional evidence (e.g., unconformities cut directly by ice) is rare. Only two such unconformities are known to have been well preserved globally from the Ediacaran Period (in western Australia and central China). This paper provides the first full description of a spectacular subglacial landscape carved beneath ice masses in the Shimengou area of central China, with classical subglacial bed forms including general faceted forms, müschelbruche, cavetto, spindle forms, and striations that testify to an abundance of meltwater during subglacial erosion. These features were produced during the southward, somewhat sinuous, flow of a temperate to polythermal ice mass.
Author(s): Le Heron DP, Vandyk TM, Kuang H, Liu Y, Chen X, Wang Y, Yang Z, Scharfenberg L, Davies B, Shields G
Publication type: Article
Publication status: Published
Journal: Geology
Year: 2019
Volume: 47
Issue: 8
Pages: 705-709
Online publication date: 22/05/2019
Acceptance date: 03/05/2019
ISSN (print): 0091-7613
ISSN (electronic): 1943-2682
Publisher: Geological Society of America
URL: https://doi.org/10.1130/G46285.1
DOI: 10.1130/G46285.1
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