Gravel dispersion on a granite pediment (East Mojave Desert, California): a short‐term look at erosional processes
نویسندگان
چکیده
منابع مشابه
Influence of Late Quaternary Climatic Changes on Geomorphic and Pedogenic Processes on a Desert Piedmont, Eastern Mojave Desert, California
Radiocarbon dating of late Quaternary deposits and shorelines of Lake Mojave and cation-ratio numerical age dating of stone pavements (Dorn. 1984) on the adjacent Soda Mountains piedmont provide age constraints for alluvial and eolian deposits. These deposits are associated with climatically controlled stands of Lake Mojave during the past 15.000 yr. Six alluvial fan units and three eolian stra...
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_______________________________________ 237 Introduction _______________________________________ 237 Methods and procedures-------.------.---------238 Acknowledgements. __--___-_-___-_____--________ 239 Geology-__________________________________ 239 Characteristics of the nodules_______________________ 240 Preservation of the fossils-_-__-_-____________________ 241 Age of the fauna_--__-__-__--...
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We sampled 21 study plots for desert tortoises (Gopherus agassizii) at the National Training Center, Fort Irwin, California. Each plot was sampled once between 1997 and 2003 to obtain a snapshot of population attributes, status, and relationships between tortoise densities and human activities. Densities ranged from o1 to 28 tortoises km ; overall, tortoises were uncommon to rare at 16 of the 2...
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under horizontal thrusts becomes more and more advanced. This is consistent with the observed diminution of the differences in the carbonization of coals lying at different depths in the vertical column as the regional carbonization passes through the semibituminous and anthracite ranks. Since neither the relative values of the factors, pressure, temperature and time, or their respective substi...
متن کاملSurface control of desert pavement pedologic process and landscape function, Cima Volcanic field, Mojave Desert, California
Desert pavement is a distinctive feature widespread across arid lands of the world. It plays a dynamic role in geomorphic, hydrologic, and ecologic processes. Where desert pavement predominates, infiltration is limited and rainfall is delivered as runoff to nearby bare ground areas where shrubs cluster. Desert pavement surfaces may appear monotonously flat and barren, but we have found, instead...
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ژورنال
عنوان ژورنال: Earth Surface Processes and Landforms
سال: 1999
ISSN: 0197-9337,1096-9837
DOI: 10.1002/(sici)1096-9837(199904)24:4<349::aid-esp971>3.3.co;2-f