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Introducing the WROONA Group. Which of the following landscapes are from Mars? Which are from Earth ?.
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Introducing the WROONA Group
Which of the followinglandscapes are from Mars? Which are fromEarth?
Wroona is a small blue world in Wroona system, located on the far edge of the Inner Rim in the Rayter Sector. The planet's continents are separated by vast oceans, and their blue-sand beaches stretch for thousands of kilometers. The near-human inhabitants of Wroona, numbering over seven billion, are a blue-skinned species with a lighthearted and optimistic outlook on life. StarWars wiki FNP project TEAM 2011/7-9 Mars: AnotherPlanet to ApproachGeoscience Issues WROcławGrOup for PlaNetologyAdvance Graphic design by Pierre Chotin member soon!
Postdocs Joanna Gurgurewicz Deputy PI Daniel Mège PI Marion Massé Univ of Arizona (2012) PhD students Antoine Séjourné Orsay (2012) Andrzej Żelaźniewicz Olga Kromuszczyńska (2010) Fionn Cullen (2012) Magdalena Makowska (2012) Marta Skiścim (2012) Timur Borikov (2012)
glacial and periglacialprocesses slopestability surface processes on Mars and Earth landslides evolution of environmental conditions on Mars topographic building internal structure of Mars rock alteration and climate
Mars Another Planet to Approach Geoscience Issues Olympus Mons Tharsis volcanoes Valles Marineris rift (2000 km)
TOPOGRAPHICLOAD Building topography 1 1 crust mantle (silicates) crust (silicates) mantle core (Fe, S) • Landscapes are supported by the strength of whatisbelow the surface. • To understandlandscapesweneed to understandwhatis the mechanicalbehaviour of whatisunderneath.
Valles Marineris is a biglandscape. • (troughs are up to 10 km deep!) • It canprovidebigconstraints on the mechanicalbehaviour of the crust and underlyingmantle. Valles Marineris Tryvariouscrust/mantlestrength profiles and compare with the observedtopography Fred Gueydan Géosciences Montpellier Fionn Daniel Joanna Andrzej
Martianlanscapes show the most impressive landslide record of the solar system, providingexceptionalconstraints for understanding landslideprocesses! 30 km 1 2 landslide 8 km debris flow bedrock
30 km What controls flow propagation? Why is basal friction so small (<10°) PhD thesis Antoine Lucas landslide 8 km debris flow model obs • Water ? • Processesatbedrock/debris flow interface • erosion? • auto-fluidization? bedrock Anne Mangeney SeismologyLab Institut de physique du globe de Paris Daniel Tim
What is the landslide trigger? 1 3 Postglacial slope destabilization (sackung), a dangerous, underevaluated process of landslide genesis in terrestrial mountains! sackung! Finiteelementmodelling of geological observations on Mars and Earth Piotr Migoń Department of Geography Wrocław University Daniel Olga Joanna Magda
We do have specialists of the glacial and periglacial conditions prevailing on Mars, that control landscape evolution. 1 4 ExoMars Martian North polar cap One of Marion's achievements Marion Antoine
Relationshipsbetween rock alteration and (paleo-)climate 1 5 infrared spectra of the Martian surface (from orbit) terrestrial rock analogues altered in various environments experimental methods COMPA rocks and minerals at surface RISON • molecular composition • crystallographic structure SIBERIA arid and cold X-ray Raman SEM AFM AES … alteration minerals (clays etc.) discrimination between climate conditions of alteration ? EAST ETHIOPIA arid but hot This is very complicated! characteristic infrared spectra (lab)
Biologicalactivityplays a keyrole in rock alteration on Earth. Will thisworkreveal a method for identification of biologicalactivity on Mars ? examples of altered rocks (SEM)… without biological activity in response to biological activity Anne Gaudin Yann Morizet Planetology and Geodynamics Lab Univ. Nantes Marta Joanna Marion Antoine • Institute of Experimental Physics, Univ. Wrocław • ING PAN Kraków
glacial and periglacialprocesses slopestability surface processes on Mars and Earth landslides implications for evolution of environmental conditions on Mars topographic building internal structure of Mars rock alteration and climate