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Bird’s-eye view of an Ediacaran subglacial landscape

Le Heron, D; Vandyk, T; Kuang, H; Liu, Y; Chen, X; Wang, Y; yang, Z; ... Shields, G; + view all (2019) Bird’s-eye view of an Ediacaran subglacial landscape. Geology 10.1130/G46285.1. (In press). Green open access

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Abstract

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.

Type: Article
Title: Bird’s-eye view of an Ediacaran subglacial landscape
Open access status: An open access version is available from UCL Discovery
DOI: 10.1130/G46285.1
Publisher version: https://doi.org/10.1130/G46285.1
Language: English
Additional information: This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Earth Sciences
URI: https://discovery.ucl.ac.uk/id/eprint/10076548
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