Oxia Planum was one of eight potential landing sites for the European Space Agency and Roscosmos ExoMars mission. After a five-year-long selection process, it was officially selected to be the landing site for Rosalind Franklin (rover). It met the rover landing criteria based on its latitude, elevation,[3] surface slopes,[4] and its Noachian-aged terrains. It was chosen because of its relatively smooth topography and its abundance of hydrated minerals.[1][5][6]
Oxia Planum contains one of the largest exposures of clay-bearing rocks on Mars.[7] The age of the region was calculated to be from ~3.6 billion years old[8] to ~4 billion years old.[1][7] The site is iron-magnesium rich clays, indicating that water once played a role here. The site sits in an area of valley systems with the exposed rocks exhibiting different compositions, indicating a variety of deposition and wetting environments. Dark resistant units, named for being dark-toned erosion resistant areas, are spread across the surface of the site. The formation of the dark resistant units is hypothesized to have occurred from either fluvial deposits or by volcanic activity during the Amazonian period. The dark resistant units may have preserved the state of the older stratum beneath it.[1][9]
Clay accumulation underneath the remnants of a fan or delta near the outlet of Coogoon Vallis may offer preservation for biosignatures against the planet's harsh radiation and oxidation environment.[7][10][11]
Oxia Planum - Location Map.
Oxia Planum - Geological Context - Morphology.
Aeolian featuresedit
The aeolian features observed on Oxia Planum indicate a changing wind regime. The formation of periodic bedrock ridges (PBRs) is hypothesized to have occurred by exposure from erosion or by wind. The PBRs record the oldest wind period of the region and indicate a north-northeast or south-southeast wind direction. The formation of transverse aeolian ridges (TARs) occurred by wind. The TARs record a second wind period of the region and indicate a northwest or north-northwest to southeast or south-southeast wind direction. Dust devils and windstreaks from the modern wind period indicate a west-northwest to east-southeast and occasionally a north-northeast to south-southwest wind direction.[5][9]
^"ESA mission updates". The Planetary Society. Retrieved May 1, 2021.
^Mandon, Lucia; Parkes Bowen, Adam; Quantin-Nataf, Cathy; Bridges, John C.; Carter, John; Pan, Lu; Beck, Pierre; Dehouck, Erwin; Volat, Matthieu; Thomas, Nicolas; Cremonese, Gabriele (March 1, 2021). "Morphological and Spectral Diversity of the Clay-Bearing Unit at the ExoMars Landing Site Oxia Planum". Astrobiology. 21 (4): 464–480. doi:10.1089/ast.2020.2292. ISSN 1531-1074. PMID 33646016.
^Turchinskaya, O. I.; Agapkin, I. A.; Dmitroskiy, A. A.; Slyuta, E. N. (March 2021). "Analysis of the Terrain and Surface Slopes of the Potential Landing Area of the ExoMars Spacecraft Oxia Planum". Lunar and Planetary Science Conference (2548): 2442. Bibcode:2021LPI....52.2442T.
^ abFavaro, E. A.; Balme, M. R.; Davis, J. M.; Grindrod, P. M.; Fawdon, P.; Barrett, A. M.; Lewis, S. R. (2021). "The Aeolian Environment of the Landing Site for the ExoMars Rosalind Franklin Rover in Oxia Planum, Mars" (PDF). Journal of Geophysical Research: Planets. 126 (4): 2020JE006723. doi:10.1029/2020JE006723. ISSN 2169-9100.
^"Oxia Planum favoured for ExoMars surface mission". www.esa.int. Retrieved May 1, 2021.
^ abcDurnham, R. (October 21, 2015). "ExoMars 2018 rover heading for Oxia Planum". Red Planet Report. Retrieved October 22, 2015.
^Gary‐Bicas, C. E.; Rogers, A. D. (2021). "Geologic and Thermal Characterization of Oxia Planum Using Mars Odyssey THEMIS Data". Journal of Geophysical Research: Planets. 126 (2): e2020JE006678. doi:10.1029/2020JE006678. ISSN 2169-9100. S2CID 234174370.
^ abSilvestro, S.; Pacifici, A.; Salese, F.; Vaz, D. A.; Neesemann, A.; Tirsch, D.; Popa, C. I.; Pajola, M.; Franzese, G.; Mongelluzzo, G.; Ruggeri, A. C. (2021). "Periodic Bedrock Ridges at the ExoMars 2022 Landing Site: Evidence for a Changing Wind Regime". Geophysical Research Letters. 48 (4): e2020GL091651. doi:10.1029/2020GL091651. ISSN 1944-8007. PMC7988568. PMID 33776161.
^Thollot, P.; Quantin, C. (May 14, 2014). "Oxia Planum, landing site for Mars 2020" (PDF). Universite de Lyon, France. Retrieved October 22, 2015.
^Staff (October 1, 2014). "Possible Future Mars Landing Site in Oxia Planum - High Resolution Imaging Science Experiment". The University of Arizona. Retrieved October 21, 2015.
External linksedit
Google Mars zoomable map – centered on the Oxia area
oxia, planum, wide, clay, bearing, plain, located, planet, mars, inside, oxia, palus, quadrangle, eastern, border, chryse, planitia, plain, lies, between, mawrth, vallis, outflow, channel, north, east, ares, vallis, outflow, channel, south, west, 2019, interna. Oxia Planum is a 200 km wide clay bearing plain located on the planet of Mars inside the Oxia Palus quadrangle on the eastern border of Chryse Planitia The plain lies between the Mawrth Vallis outflow channel to the north east and the Ares Vallis outflow channel to the south west In 2019 the International Astronomical Union Working Group for Planetary System Nomenclature officially approved Oxia Planum as a feature on the surface of Mars near 18 275 N 335 368 E 1 2 Oxia PlanumLocationOxia Palus quadrangleCoordinates18 16 30 N 335 22 05 E 18 275 N 335 368 E 18 275 335 368Oxia Planum was one of eight potential landing sites for the European Space Agency and Roscosmos ExoMars mission After a five year long selection process it was officially selected to be the landing site for Rosalind Franklin rover It met the rover landing criteria based on its latitude elevation 3 surface slopes 4 and its Noachian aged terrains It was chosen because of its relatively smooth topography and its abundance of hydrated minerals 1 5 6 Contents 1 Overview 2 Aeolian features 3 See also 4 References 5 External linksOverview editOxia Planum contains one of the largest exposures of clay bearing rocks on Mars 7 The age of the region was calculated to be from 3 6 billion years old 8 to 4 billion years old 1 7 The site is iron magnesium rich clays indicating that water once played a role here The site sits in an area of valley systems with the exposed rocks exhibiting different compositions indicating a variety of deposition and wetting environments Dark resistant units named for being dark toned erosion resistant areas are spread across the surface of the site The formation of the dark resistant units is hypothesized to have occurred from either fluvial deposits or by volcanic activity during the Amazonian period The dark resistant units may have preserved the state of the older stratum beneath it 1 9 Clay accumulation underneath the remnants of a fan or delta near the outlet of Coogoon Vallis may offer preservation for biosignatures against the planet s harsh radiation and oxidation environment 7 10 11 nbsp Oxia Planum Location Map nbsp Oxia Planum Geological Context Morphology Aeolian features editThe aeolian features observed on Oxia Planum indicate a changing wind regime The formation of periodic bedrock ridges PBRs is hypothesized to have occurred by exposure from erosion or by wind The PBRs record the oldest wind period of the region and indicate a north northeast or south southeast wind direction The formation of transverse aeolian ridges TARs occurred by wind The TARs record a second wind period of the region and indicate a northwest or north northwest to southeast or south southeast wind direction Dust devils and windstreaks from the modern wind period indicate a west northwest to east southeast and occasionally a north northeast to south southwest wind direction 5 9 See also editGeography of Mars List of plains on MarsReferences edit a b c d Quantin Nataf Cathy Carter John Mandon Lucia Thollot Patrick Balme Matthew Volat Matthieu Pan Lu Loizeau Damien Millot Cedric Breton Sylvain Dehouck Erwin January 5 2021 Oxia Planum The Landing Site for the ExoMars Rosalind Franklin Rover Mission Geological Context and Prelanding Interpretation Astrobiology 21 3 345 366 doi 10 1089 ast 2019 2191 ISSN 1531 1074 PMC 7987365 PMID 33400892 ESA mission updates The Planetary Society Retrieved May 1 2021 Mandon Lucia Parkes Bowen Adam Quantin Nataf Cathy Bridges John C Carter John Pan Lu Beck Pierre Dehouck Erwin Volat Matthieu Thomas Nicolas Cremonese Gabriele March 1 2021 Morphological and Spectral Diversity of the Clay Bearing Unit at the ExoMars Landing Site Oxia Planum Astrobiology 21 4 464 480 doi 10 1089 ast 2020 2292 ISSN 1531 1074 PMID 33646016 Turchinskaya O I Agapkin I A Dmitroskiy A A Slyuta E N March 2021 Analysis of the Terrain and Surface Slopes of the Potential Landing Area of the ExoMars Spacecraft Oxia Planum Lunar and Planetary Science Conference 2548 2442 Bibcode 2021LPI 52 2442T a b Favaro E A Balme M R Davis J M Grindrod P M Fawdon P Barrett A M Lewis S R 2021 The Aeolian Environment of the Landing Site for the ExoMars Rosalind Franklin Rover in Oxia Planum Mars PDF Journal of Geophysical Research Planets 126 4 2020JE006723 doi 10 1029 2020JE006723 ISSN 2169 9100 Oxia Planum favoured for ExoMars surface mission www esa int Retrieved May 1 2021 a b c Durnham R October 21 2015 ExoMars 2018 rover heading for Oxia Planum Red Planet Report Retrieved October 22 2015 Gary Bicas C E Rogers A D 2021 Geologic and Thermal Characterization of Oxia Planum Using Mars Odyssey THEMIS Data Journal of Geophysical Research Planets 126 2 e2020JE006678 doi 10 1029 2020JE006678 ISSN 2169 9100 S2CID 234174370 a b Silvestro S Pacifici A Salese F Vaz D A Neesemann A Tirsch D Popa C I Pajola M Franzese G Mongelluzzo G Ruggeri A C 2021 Periodic Bedrock Ridges at the ExoMars 2022 Landing Site Evidence for a Changing Wind Regime Geophysical Research Letters 48 4 e2020GL091651 doi 10 1029 2020GL091651 ISSN 1944 8007 PMC 7988568 PMID 33776161 Thollot P Quantin C May 14 2014 Oxia Planum landing site for Mars 2020 PDF Universite de Lyon France Retrieved October 22 2015 Staff October 1 2014 Possible Future Mars Landing Site in Oxia Planum High Resolution Imaging Science Experiment The University of Arizona Retrieved October 21 2015 External links editGoogle Mars zoomable map centered on the Oxia area High resolution images of the Oxia Planum Portals nbsp Astronomy nbsp Biology nbsp Solar System Retrieved from https en wikipedia org w index php title Oxia Planum amp oldid 1209238471, wikipedia, wiki, book, books, library,
