Regional Mid-latitude Glaciation on Mars: Evidence for Marginal Glacial De- Posits Adjacent to Lineated Valley Fill
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منابع مشابه
Evidence for Amazonian northern mid-latitude regional glacial landsystems on Mars: Glacial flow models using GCM-driven climate results and comparisons to geological observations
0019-1035/$ see front matter 2011 Elsevier Inc. A doi:10.1016/j.icarus.2011.07.018 ⇑ Corresponding author. E-mail addresses: [email protected] (J.L. Fasto (J.W. Head). A fretted valley system on Mars located at the northern mid-latitude dichotomy boundary contains lineated valley fill (LVF) with extensive flow-like features interpreted to be glacial in origin. We have modeled this deposit using...
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a r t i c l e i n f o Amazonian non-polar ice deposits on Mars record periods and events when the climate differed substantially from that of today. Particularly evident are examples of ice-rich deposits in the martian mid-latitudes (lobate debris aprons, lineated valley fill, and concentric crater fill). Uncertain, however, is the amount of ice remaining in these deposits today, and the thickn...
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a r t i c l e i n f o Keywords: Mars lobate debris aprons lineated valley fill debris-covered glaciers glaciation rock glaciers Lobate debris aprons (LDA) and lineated valley fill (LVF) have been known to characterize the mid-latitude regions of Mars since documented by Viking; their flow-like character suggested that deposition of ice in talus pile pore space caused lubrication and flow during...
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[1] The Nilosyrtis Mensae region is important among dichotomy boundary fretted terrain outcrops, as it provides evidence of overprinting of ancient landscapes by a suite of glacial features, providing a composite view of the variety of midlatitude glacial modification processes that can occur during recent Martian ice ages. On the basis of a series of criteria developed for the identification o...
متن کاملMid-latitude Glacial Modification of Moreux Crater (44°e, 42°n; 135 Km): Evi- Dence for Polythermal Glaciation Related to Impact-induced Enhanced Thermal Gradients
Introduction: The dichotomy boundary represents one of the most important geological and geophysical features of Mars. We have been assessing the nature of modification processes along the dichotomy boundary at northern mid-latitudes in the Deuteronilus-Protonilus region and have found evidence for extensive regional Amazonian glaciation in lobate debris aprons (LDA) and lineated valley fill (L...
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