منابع مشابه
The Structure and Evolution of Ancient Impact Basins on Mars
The number of Martian impact basins, once thought deficient owing to a low number of impactors, has been significantly increased through the identification of structural imprints that remain even after nearly complete erasure of basin massifs. Five ancient multiringed impact basins were selected for detailed study and exhibit a systematic pattern of rejuvenation of the multiring plan through en...
متن کاملLake-size variations in the Lahontan and Bonneville basins
Benson, L., Currey, D., Yong Lao and Hostetler, S., 1992. Lake-size variations in the Lahontan and Bonneville basins between 13,000 and 9000 14C yr B.P.. Palaeogeogr., Palaeoclimatol., Palaeoecol., 95: 19-32. Recessions of Lakes Lahontan and Bonneville that commenced ~ 13,500 ~4C yr B.P. were interrupted at i> 11,500 14C yr B.P. in the Lahontan basin and ~ 12,200 14C yr B.P. in the Bonneville b...
متن کاملSeasonal thaw settlement at drained thermokarst lake basins, Arctic Alaska
Drained thermokarst lake basins (DTLBs) are ubiquitous landforms on Arctic tundra lowland. Their dynamic states are seldom investigated, despite their importance for landscape stability, hydrology, nutrient fluxes, and carbon cycling. Here we report results based on highresolution Interferometric Synthetic Aperture Radar (InSAR) measurements using space-borne data for a study area located on th...
متن کاملRecovery of sequences and extent of ancient lake in Jazmourian Playa based on lake terraces in Quaternary
Extended abstract 1-Introduction The natural environment is affected by climate, and its changes have different geomorphic forms. The dominance of different climatic phases and changes in the balance of matter and energy cause different shaping systems in the environment. Ancient lakes are one of the geomorphic forms of the Quaternary period, and today many of these lakes are either complete...
متن کاملFreshwater shrimp-sponge association from an ancient lake.
Shrimp-sponge associations occur frequently in marine ecosystems, serving as model systems for the evolution of eusociality. Here, we describe the first known instance of such association in freshwater from an ancient lake in Indonesia. The shrimp Caridina spongicola forms an exclusive and probably commensal association with a yet undescribed spongillinid sponge. Phylogenetic and ecological dat...
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ژورنال
عنوان ژورنال: Nature
سال: 1968
ISSN: 0028-0836,1476-4687
DOI: 10.1038/220831c0