Experimental evidence for lava-like mud flows under Martian surface conditions

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985530%3A_____%2F20%3A00524485" target="_blank" >RIV/67985530:_____/20:00524485 - isvavai.cz</a>

Result on the web

<a href="https://www.nature.com/articles/s41561-020-0577-2" target="_blank" >https://www.nature.com/articles/s41561-020-0577-2</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1038/s41561-020-0577-2" target="_blank" >10.1038/s41561-020-0577-2</a>

Result language

angličtina

Original language name

Experimental evidence for lava-like mud flows under Martian surface conditions

Original language description

Large outflow channels on ancient terrains of Mars have been interpreted as the products of catastrophic flood events. The rapid burial of water-rich sediments after such flooding could have led to sedimentary volcanism, in which mixtures of sediment and water (mud) erupt to the surface. Tens of thousands of volcano-like landforms populate the northern lowlands and other local sedimentary depocentres on Mars. However, it is difficult to determine whether the edifices are related to igneous or mud extrusions, partly because the behaviour of extruded mud under Martian surface conditions is poorly constrained. Here we investigate the mechanisms of mud propagation on Mars using experiments performed inside a low-pressure chamber at cold temperatures. We found that low viscosity mud under Martian conditions propagates differently from that on Earth, because of a rapid freezing and the formation of an icy crust. Instead, the experimental mud flows propagate like terrestrial pahoehoe lava flows, with liquid mud spilling from ruptures in the frozen crust, and then refreezing to form a new flow lobe. We suggest that mud volcanism can explain the formation of some lava-like flow morphologies on Mars, and that similar processes may apply to cryovolcanic extrusions on icy bodies in the Solar System.

Czech name

—

Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10507 - Volcanology

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2020

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Nature Geoscience

ISSN

1752-0894

e-ISSN

—

Volume of the periodical

13

Issue of the periodical within the volume

6

Country of publishing house

US - UNITED STATES

Number of pages

5

Pages from-to

403-407

UT code for WoS article

000533834500003

EID of the result in the Scopus database

2-s2.0-85085193680