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Evidence for Amazonian highly viscous lavas in the southern highlands on Mars

Brož, Petr; Hauber, Ernst; Platz, Thomas and Balme, Matt (2015). Evidence for Amazonian highly viscous lavas in the southern highlands on Mars. Earth and Planetary Science Letters, 415 pp. 200–212.

DOI (Digital Object Identifier) Link: https://doi.org/10.1016/j.epsl.2015.01.033
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Abstract

We have identified small-scale volcanic edifices, two cones and three domes with associated flows, within Terra Sirenum, a region situated in the martian southern highlands. Based on thermal, morphological, and morphometrical properties, and the determination of absolute model ages, we conclude that these features were formed by volcanic activity of viscous lavas in the mid-Amazonian epoch, relatively recently in martian history. If our hypothesis is correct, this small volcanic field represents rare evidence of young volcanic activity in the martian highlands in which martian equivalents of terrestrial lava domes and coulées might be present. On Earth, such landforms are usually formed by highly viscous evolved lavas, i.e., andesitic to rhyolitic, for which observational evidence is sparse on Mars. Hence, this field might be one of only a few where martian evolved lavas might be investigated in detail.

Item Type: Journal Item
Copyright Holders: 2015 Elsevier B.V.
ISSN: 0012-821X
Project Funding Details:
Funded Project NameProject IDFunding Body
Grant580313Charles University Science Foundation
Not SetNot SetHelmholtz Association
Keywords: Mars; Mars surface; volcanism; lava dome
Academic Unit/School: Faculty of Science, Technology, Engineering and Mathematics (STEM) > Physical Sciences
Faculty of Science, Technology, Engineering and Mathematics (STEM)
Item ID: 44312
Depositing User: Matthew Balme
Date Deposited: 23 Sep 2015 16:23
Last Modified: 07 Dec 2018 10:34
URI: http://oro.open.ac.uk/id/eprint/44312
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