منابع مشابه
Decameter thick remnant glacial ice deposits on Mars
OnMars, a smooth, draping unit—the “latitude-dependant mantle” (LDM), believed to comprise meter thick layers of dust and ice—extends from the midlatitudes to the poles, covering at least 23% of the surface. We show that the LDM can be 30m deep on pole-facing crater walls, and by measuring the erosional and depositional volumes of small gullies that incise these LDM deposits, we show that it mu...
متن کاملTowards a glacial-sensitive model of island biogeography
Island Ecology and Biogeography Research Group. Instituto Universitario de Enfermedades Tropicales y Salud Pública de Canarias (IUETSPC), Universidad de La Laguna, Tenerife, Canary Islands 38206, Spain, Conservation Biogeography and Macroecology Group, School of Geography and the Environment, South Parks Road, Oxford OX1 3QY, UK, Computation GeoEcology Group, Institute for Biodiversity and Ecos...
متن کاملAbraham D. Flaxman Research Statement
Roads, neurons, the Internet, social relationships, mycelia. Everywhere we look, we find complex networks. This has been the case since time immemorial. But only recently has technology allowed us to record the structure of these huge networks and use this information in decision making. Hyperlinking web pages together and ranking them based on network structure has already revolutionized the w...
متن کاملGlacial Geology of Cape Bird, Ross Island, Antarctica
Located on the northwest coast of Ross Island in McMurdo Sound, Cape Bird features virtually unweathered surface drift with erratics from the Transantarctic Mountains (TAM) and with enclosed marine shell fragments. This Cape Bird drift is cut by Holocene beaches. The chronology of drift deposition and beach formation comes from AMS radiocarbon dates of associated marine shells, and of penguin b...
متن کاملCosmogenic exposure dating in arctic glacial landscapes: implications for the glacial history of northeastern Baffin Island, Arctic Canada
Cosmogenic exposure dating and detailed glacial-terrain mapping from the Clyde Foreland, Baffin Island, Arctic Canada, reveal new information about the extent and dynamics of the northeastern sector of the Laurentide Ice Sheet (LIS) during the last glacial maximum (LGM). The Clyde Foreland is composed of two distinct landscape zones: (1) glacially scoured terrain proximal to the major sources o...
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ژورنال
عنوان ژورنال: The Journal of Geology
سال: 1908
ISSN: 0022-1376,1537-5269
DOI: 10.1086/621490