يعرض 1 - 4 نتائج من 4 نتيجة بحث عن '"Parkes Bowen, Adam"', وقت الاستعلام: 0.74s تنقيح النتائج
  1. 1
    رسالة جامعية

    المؤلفون: Parkes Bowen, Adam C. D.

    الوصف: This thesis is focused on characterising Oxia Planum, the landing site for the ExoMars 2022 Rosalind Franklin rover. This involved the investigation and mapping out of the sites' Clay-bearing Unit, as well as digitising the extensive fracture networks present, using visible to near infrared images. Alongside this a prototype geotechnics tool intended for inclusion on a future Mars mission, the Small Planetary Linear Impulse Tool (SPLIT), was tested to determine how it compares to existing geotechnics tools. The Clay-bearing Unit, consisting of two subunits, was investigated and mapped using the  instruments. This was performed to better understand Colour and Stereo Surface Imaging System (CaSSIS) and High Resolution Imaging Science Experiment (HiRISE) how the Clay-bearing Unit varies over its extent, and if any such variations correlated to other features at the site. It was found that differences between the two subunits are likely due to mineralogical variation rather than differences in surficial cover, with the formation of the subunits occuring before a channel-forming stage of aqueous activity at the site. Fracture digitisation using HiRISE was also performed, with sites from units at Oxia Planum having their fracture networks digitised and parametrised. These were compared to each other and with sites at Gale Crater; sites on the margins of an unnamed crater within the Vastitas Borealis north polar region; and two Earth-based sites. This indicates that several mechanisms are unlikely to have caused the fracturing seen at Oxia Planum e.g., hydraulic fracturing and thermal fracturing, and identified that the fracturing within the Clay-bearing and Capping Units likely originated during separate fracturing episodes. SPLIT is an instrument designed to remove the upper layers of a target rock, revealing unaltered material to depths of several centimetres. Testing was carried out on Martian analogue samples in field trials and laboratory tests. These tests were generally successful, defined as removing volumes comparable to that achieved using existing instrumentation, with a smaller power expenditure and in less time. However failure to operate on gypsum due to its friability, as well as on a sandstone and a siltstone sample due to the lack of exploitable weaknesses and low mass of these samples (~3 kg), highlight the mass and material strength limits at which SPLIT can nominally operate.

  2. 2
    دورية أكاديمية

    المساهمون: School of Physical Sciences Milton Keynes, Faculty of Science, Technology, Engineering and Mathematics Milton Keynes, The Open University Milton Keynes (OU)-The Open University Milton Keynes (OU), European Space Research and Technology Centre (ESTEC), Agence Spatiale Européenne = European Space Agency (ESA), DLR Institut für Planetenforschung, Deutsches Zentrum für Luft- und Raumfahrt Berlin (DLR), Jet Propulsion Laboratory (JPL), NASA-California Institute of Technology (CALTECH), Department of Earth Science and Engineering Imperial College London, Imperial College London, Istituto di Astrofisica e Planetologia Spaziali - INAF (IAPS), Istituto Nazionale di Astrofisica (INAF), Department of Earth Sciences NHM London (DES-NHM), The Natural History Museum London (NHM), Laboratoire de Planétologie et Géosciences UMR_C 6112 (LPG), Le Mans Université (UM)-Université d'Angers (UA)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Nantes université - UFR des Sciences et des Techniques (Nantes univ - UFR ST), Nantes Université - pôle Sciences et technologie, Nantes Université (Nantes Univ)-Nantes Université (Nantes Univ)-Nantes Université - pôle Sciences et technologie, Nantes Université (Nantes Univ)-Nantes Université (Nantes Univ), Institut d'astrophysique spatiale (IAS), Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales Paris (CNES), Laboratoire de Géologie de Lyon - Terre, Planètes, Environnement (LGL-TPE), École normale supérieure de Lyon (ENS de Lyon)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut national des sciences de l'Univers (INSU - CNRS)-Université Jean Monnet - Saint-Étienne (UJM)-Centre National de la Recherche Scientifique (CNRS), Physikalisches Institut Bern, Universität Bern / University of Bern (UNIBE), Università degli Studi Roma Tre = Roma Tre University (ROMA TRE), Department of Analytical Chemistry Leioa, University of the Basque Country = Euskal Herriko Unibertsitatea (UPV / EHU), Technische Universität Dresden = Dresden University of Technology (TU Dresden), School of Geosciences Aberdeen, University of Aberdeen, Space Exploration Institute Neuchâtel (SPACE - X), Department of Environmental Sciences Basel, Université de Bâle = University of Basel = Basel Universität (Unibas), Space Research Centre Leicester, University of Leicester, Centre for Earth Evolution and Dynamics Oslo (CEED), Department of Geosciences Oslo, Faculty of Mathematics and Natural Sciences Oslo, University of Oslo (UiO)-University of Oslo (UiO)-Faculty of Mathematics and Natural Sciences Oslo, University of Oslo (UiO)-University of Oslo (UiO), PLANETO - LATMOS, Laboratoire Atmosphères, Milieux, Observations Spatiales (LATMOS), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Department of Earth and Planetary Sciences UCL/Birkbeck, Birkbeck College University of London, Centre de biophysique moléculaire (CBM), Université d'Orléans (UO)-Université de Tours (UT)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut de Chimie - CNRS Chimie (INC-CNRS)-Centre National de la Recherche Scientifique (CNRS), Max-Planck-Institut für Sonnensystemforschung = Max Planck Institute for Solar System Research (MPS), Max-Planck-Gesellschaft, National Oceanography Centre Southampton (NOC), University of Southampton, Department of Physics and Astronomy UCL London, University College of London London (UCL), Technische Universität Munchen - Technical University Munich - Université Technique de Munich (TUM), Institut universitaire de France (IUF), Ministère de l'Education nationale, de l’Enseignement supérieur et de la Recherche (M.E.N.E.S.R.), European Space Astronomy Centre (ESAC), Laboratoire d'études spatiales et d'instrumentation en astrophysique = Laboratory of Space Studies and Instrumentation in Astrophysics (LESIA), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Division of Geological and Planetary Sciences Pasadena, California Institute of Technology (CALTECH), Instituto Andaluz de Ciencias de la Tierra (IACT), Consejo Superior de Investigaciones Cientificas España = Spanish National Research Council Spain (CSIC)-Universidad de Granada = University of Granada (UGR), Centro de Astrobiologia Madrid (CAB), Instituto Nacional de Técnica Aeroespacial (INTA)-Consejo Superior de Investigaciones Cientificas España = Spanish National Research Council Spain (CSIC), Instituto Nacional de Técnica Aeroespacial (INTA), Space Research Institute of the Russian Academy of Sciences (IKI), Russian Academy of Sciences Moscow (RAS), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), International Research School of Planetary Sciences Pescara (IRSPS), Università degli studi "G. d'Annunzio" Chieti-Pescara Chieti-Pescara (Ud'A), Sumatra Institute of Technology = Institut Teknologi Sumatera (ITERA), Mullard Space Science Laboratory (MSSL), Institut für Planetologie Münster, Westfälische Wilhelms-Universität Münster = University of Münster (WWU), Biological and Environmental Sciences Stirling, University of Stirling, Institute of Psychiatry, Psychology & Neuroscience, King's College London, King‘s College London, School of Environment, Earth and Ecosystem Sciences Milton Keynes, The James Hutton Institute, Planetary Science Institute Tucson (PSI)

    المصدر: ISSN: 1744-5647 ; Journal of Maps ; https://insu.hal.science/insu-04519311Test ; Journal of Maps, 2024, 20 (1), pp.2302361. ⟨10.1080/17445647.2024.2302361⟩.

    الوصف: International audience ; This 1:30,000 scale geological map describes Oxia Planum, Mars, the landing site for theExoMars Rosalind Franklin rover mission. The map represents our current understanding ofbedrock units and their relationships prior to Rosalind Franklin’s exploration of this location.The map details 15 bedrock units organised into 6 groups and 7 textural and surficial units.The bedrock units were identified using visible and near-infrared remote sensing datasets.The objectives of this map are (i) to identify where the most astrobiologically relevant rocksare likely to be found, (ii) to show where hypotheses about their geological context (withinOxia Planum and in the wider geological history of Mars) can be tested, (iii) to inform boththe long-term (hundreds of metres to ∼1 km) and the short-term (tens of metres) activityplanning for rover exploration, and (iv) to allow the samples analysed by the rover to beinterpreted within their regional geological context.

  3. 3
    دورية أكاديمية

    المساهمون: Laboratoire de Géologie de Lyon - Terre, Planètes, Environnement (LGL-TPE), École normale supérieure de Lyon (ENS de Lyon)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut national des sciences de l'Univers (INSU - CNRS)-Université Jean Monnet - Saint-Étienne (UJM)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'études spatiales et d'instrumentation en astrophysique = Laboratory of Space Studies and Instrumentation in Astrophysics (LESIA), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), University of Leicester, Institut d'astrophysique spatiale (IAS), Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales Paris (CNES), Institut de Planétologie et d'Astrophysique de Grenoble (IPAG), Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Grenoble (OSUG ), Institut national des sciences de l'Univers (INSU - CNRS)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université Grenoble Alpes (UGA)-Météo-France-Institut national des sciences de l'Univers (INSU - CNRS)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université Grenoble Alpes (UGA)-Météo-France, Universität Bern / University of Bern (UNIBE), Istituto Nazionale di Astrofisica (INAF), University of Western Ontario (UWO), ANR-18-ERC1-0005,Rock n Mars,Link rock and orbital analyses of Mars(2018)

    المصدر: ISSN: 1531-1074.

    الوصف: International audience ; The European Space Agency and Roscosmos' ExoMars rover mission, which is planned to land in the Oxia Planum region, will be dedicated to exobiology studies at the surface and subsurface of Mars. Oxia Planum is a clay-bearing site that has preserved evidence of long-term interaction with water during the Noachian era. Fe/Mg-rich phyllosilicates have previously been shown to occur extensively throughout the landing area. Here, we analyze data from the High Resolution Imaging Science Experiment (HiRISE) and from the Compact Reconnaissance Imaging Spectrometer for Mars (CRISM) instruments onboard NASA's Mars Reconnaissance Orbiter and the Colour and Stereo Surface Imaging System (CaSSIS) onboard ESA's Trace Gas Orbiter to characterize, at a high spatial resolution, the morphological and spectral variability of Oxia Planum's surface deposits. Two main types of bedrocks are identified within the clay-bearing, fractured unit observed throughout the landing site: (1) an orange type in HiRISE correlated with the strongest detections of secondary minerals (dominated by Fe/Mg-rich clay minerals) with, in some locations, an additional spectral absorption near 2.5 μm, suggesting the mixture with an additional mineral, plausibly carbonate or another type of clay mineral; (2) a more bluish bedrock associated with weaker detections of secondary minerals, which exhibits at certain locations a ∼1 μm broad absorption feature consistent with olivine. Coanalysis of the same terrains with the recently acquired CaSSIS images confirms the variability in the color and spectral properties of the fractured unit. Of interest for the ExoMars mission, both types of bedrocks are extensively outcropping in the Oxia Planum region, and the one corresponding to the most intense spectral signals of clay minerals (the primary scientific target) is well exposed within the landing area, including near its center.

  4. 4

    الوصف: The European Space Agency and Roscosmos’ ExoMars rover mission, which is planned to land in the Oxia Planum region, will be dedicated to exobiology studies at the surface and subsurface of Mars. Oxia Planum is a clay-bearing site that has preserved evidence of long-term interaction with water during the Noachian era. Fe/Mg-rich phyllosilicates have previously been shown to occur extensively throughout the landing area. Here, we analyze data from the High Resolution Imaging Science Experiment (HiRISE) and from the Compact Reconnaissance Imaging Spectrometer for Mars (CRISM) instruments onboard NASA’s Mars Reconnaissance Orbiter and the Colour and Stereo Surface Imaging System (CaSSIS) onboard ESA’s Trace Gas Orbiter to characterize, at a high spatial resolution, the morphological and spectral variability of Oxia Planum’s surface deposits. Two main types of bedrocks are identified within the clay-bearing, fractured unit observed throughout the landing site: (1) an orange type in HiRISE correlated with the strongest detections of secondary minerals (dominated by Fe/Mg-rich clay minerals) with, in some locations, an additional spectral absorption near 2.5 mm, suggesting the mixture with an additional mineral, plausibly carbonate or another type of clay mineral; (2) a more bluish bedrock associated with weaker detections of secondary minerals, which exhibits at certain locations a *1 mm broad absorption feature consistent with olivine. Coanalysis of the same terrains with the recently acquired CaSSIS images confirms the variability in the color and spectral properties of the fractured unit. Of interest for the ExoMars mission, both types of bedrocks are extensively outcropping in the Oxia Planum region, and the one corresponding to the most intense spectral signals of clay minerals (the primary scientific target) is well exposed within the landing area, including near its center.