Internal structure of the Martian south polar layered deposits
نویسندگان
چکیده
منابع مشابه
Glacial Flow Modeling of the Martian North Polar Layered Deposits
Introduction: Recent observations of the Martian North Polar Layered Deposits (NPLD) suggest that glacial flow may govern its large-scale evolution [1]. There are two basic glaciological questions of climatological importance: (1) How fast is the NPLD presently flowing? (2) And does the NPLD experience " ice ages " : i.e., episodes of glacial advance and retreat at other orbital epochs? To addr...
متن کاملDensity of Mars' south polar layered deposits.
Both poles of Mars are hidden beneath caps of layered ice. We calculated the density of the south polar layered deposits by combining the gravity field obtained from initial results of radio tracking of the Mars Reconnaissance Orbiter with existing surface topography from the Mars Orbiter Laser Altimeter on the Mars Global Surveyor spacecraft and basal topography from the Mars Advanced Radar fo...
متن کاملStratigraphic Anomalies in the Martian North Polar Layered Deposits
Introduction: We have identified numerous examples of anomalous trough stratigraphy within the North Polar Layered Deposits (NPLD). According to the standard model of NPLD stratigraphy [1], troughs can be divided into three main units: (1) Layered Terrain, which exhibit fine-scale laminae upon equatorward-facing (EWF) trough slopes; (2) Banded Terrain, more diffuse layers located on poleward-fa...
متن کاملModification of secondary craters on the Martian South Polar Layered Deposits
[1] Secondary crater fields are important stratigraphic markers that can shed light on resurfacing processes that have occurred since their formation. We examine the morphologies of secondary craters formed from the ejection of material from two large impacts on the Martian South Polar Layered Deposits (SPLD): McMurdo crater at 84.5 S, 0 W, and an unnamed impact at 80.8 S, 284 W. The morphologi...
متن کاملSouth Polar Layered Deposits of Mars: The cratering record
[1] Data from the Mars Orbiter Laser Altimeter (MOLA) and Mars Orbiter Camera (MOC) instruments aboard the Mars Global Surveyor (MGS) were used in a detailed search of a selected part of the South Polar Layered Deposits (SPLD) for impact craters. Impact craters with diameters from 0.8 to 5 km were identified from a MOLA-derived shaded relief map and were primarily validated using individual MOL...
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ژورنال
عنوان ژورنال: Journal of Geophysical Research
سال: 2004
ISSN: 0148-0227
DOI: 10.1029/2004je002267