DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Privacy Policy | Contact | Deutsch
Fontsize: [-] Text [+]

Mud flows in southwestern Utopia Planitia, Mars

Cuřín, Vojtěch and Broz, P. and Hauber, Ernst and Markonis, Y. (2022) Mud flows in southwestern Utopia Planitia, Mars. Icarus, 389, p. 115266. Elsevier. doi: 10.1016/j.icarus.2022.115266. ISSN 0019-1035.

[img] PDF - Only accessible within DLR - Published version

Official URL: https://www.sciencedirect.com/science/article/abs/pii/S001910352200358X


Landforms with characteristic flow-like morphology are distributed across the southwestern portion of Utopia Planitia, Mars. Although some of the features have previously been interpreted as mud flows associated with a former presence of partly frozen muddy ocean based on their morphologies and similarities with terrestrial analogues (Ivanov et al., 2014, Icarus 228; Ivanov et al., 2015, Icarus 248), such interpretations remain ambiguous. This is because a) the evidence supporting the presence of such an ocean has been disputed by many, b) models of evolution of Utopia Planitia do not sufficiently explain the emplacement mechanisms of the flow-like landforms, and c) no in-situ measurements are available to confirm their sedimentary origin. Here we present results of a mapping exercise that focused on a field of flow-related landforms spread across a ∼ 500 × 1300 km large area centered around Adamas Labyrinthus in the attempt to provide additional insight about their formation mechanism. We mapped the distribution of 312 edifices and classified them based on their areal extent, shape, and morphological properties. We assert that these features can be grouped into four classes with distinct shapes and sizes. Their shapes are consistent with the ascent and the subsequent movement of liquid over the Martian surface. We interpret an evolutionary sequence among the classes as the differences in their morphologies can be explained by different effusion rates of the source material and the duration of the discharge at the time of their emplacement. As the result of our analysis and considering previous studies focusing on the area of our interest, we propose that all the >300 studied features were formed by subsurface sediment mobilization and that the material likely originated from the same subsurface source area. Consequently, we argue for the presence of a large body of mud within this region in the past. Finally, we note that there are several previously unconsidered sequences of events which could have resulted in such sedimentary-volcanic activity within Adamas Labyrinthus.

Item URL in elib:https://elib.dlr.de/196131/
Document Type:Article
Title:Mud flows in southwestern Utopia Planitia, Mars
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Cuřín, VojtěchCzech University of Life Sciences PragueUNSPECIFIEDUNSPECIFIED
Broz, P.Institute of Geophysics, The Academy of Sciences of the Czech Republic (ASCR),Prague 4, Czech RepublicUNSPECIFIEDUNSPECIFIED
Hauber, ErnstUNSPECIFIEDhttps://orcid.org/0000-0002-1375-304XUNSPECIFIED
Markonis, Y.Faculty of Environmental Sciences, Czech University of Life Sciences Prague, Czech RepubliUNSPECIFIEDUNSPECIFIED
Date:14 September 2022
Journal or Publication Title:Icarus
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
Page Range:p. 115266
Keywords:Mars, sediment, volcanism, water, subsurface, chronology, HRSC
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Robotics
DLR - Research area:Raumfahrt
DLR - Program:R RO - Robotics
DLR - Research theme (Project):R - Planetary Exploration
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Planetary Geology
Deposited By: Hauber, Ernst
Deposited On:24 Jul 2023 09:39
Last Modified:19 Oct 2023 14:59

Repository Staff Only: item control page

Help & Contact
electronic library is running on EPrints 3.3.12
Website and database design: Copyright © German Aerospace Center (DLR). All rights reserved.