Death of a Sand Sea: An active erg systematically buried by the Etendeka flood basalts of NW Namibia.

Jerram DA, Mountney N, Howell J, Long D, Stollhofen H (2000)

Publication Type: Journal article, Original article

Publication year: 2000

Journal

Journal of the Geological Society Geological Society

Publisher: Geological Society

Pages Range: 513-516

Journal Issue: 157

DOI: 10.1144/jgs.157.3.513

Abstract

Here we report on a 'fossilized' sand sea that was progressively engulfed by the basal Etendeka flood basalts in NW Namibia. Preserved relict aeolian landforms include transverse barchanoid dunes and isolated barchan dunes. Present-day preferential erosion of the lava flows exhumes relict aeolian bedforms preserved in the position in which they were migrating at the time of burial (c. 133 Ma). A passive eruption style of inflated pahoehoe flows has preserved the bedforms without significant deformation. The sediment interlayers record a decrease in sand supply and a change in palaeowind direction, which may have been driven by the ongoing break-up of west Gondwana, or may be a direct result of the widespread volcanism itself.

Authors with CRIS profile

Harald Stollhofen Lehrstuhl für Geologie (Exogene Dynamik)

Involved external institutions

University of Oslo NO Norway (NO) The University of Liverpool GB United Kingdom (GB)

How to cite

APA:

Jerram, D.A., Mountney, N., Howell, J., Long, D., & Stollhofen, H. (2000). Death of a Sand Sea: An active erg systematically buried by the Etendeka flood basalts of NW Namibia. Journal of the Geological Society, 157, 513-516. https://doi.org/10.1144/jgs.157.3.513

MLA:

Jerram, Dougal A., et al. "Death of a Sand Sea: An active erg systematically buried by the Etendeka flood basalts of NW Namibia." Journal of the Geological Society 157 (2000): 513-516.

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