Geologic evolution of Iron Mountain, central Mojave Desert, California
نویسندگان
چکیده
منابع مشابه
Attributes of desert tortoise populations at the National Training Center, Central Mojave Desert, California, USA
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...
متن کاملMiocene Arthropods from the Mojave Desert California
_______________________________________ 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_--__-__-__--...
متن کاملEcology of a population of subsidized predators: Common ravens in the central Mojave Desert, California
Human subsidies have resulted in the rapid growth of populations of common ravens (Corvus corax) in the Mojave Desert. This is a management concern because ravens prey on threatened desert tortoises (Gopherus agassizii). We conducted weekly counts for 29 months at 10 sites on the US Army’s National Training Center, Fort Irwin, California to evaluate factors affecting the distribution of ravens....
متن کاملLate Cenozoic landscape evolution on lava flow surfaces of the Cima volcanic field, Mojave Desert, California
Landscape evolution in the eastern Mojave Desert is recorded by sys1ematic changes in Pliocene to latest Pleistocene volcanic: land· forms that show discrete periods of eolian deposition, surface stabilization, drainage-network expansion, and erosion on basaltic lava nows. These processes are documented by K·Ar dating in conjunction with morphometric, sedimentologic. pedologic, and geophysica1 ...
متن کاملLithospheric mantle duplex beneath the central Mojave Desert revealed by xenoliths from Dish Hill, California
[1] Low-angle subduction of oceanic lithosphere may be an important process in modifying continental lithosphere. A classic example is the underthrusting of the Farallon plate beneath North America during the Laramide orogeny. To assess the relevance of this process to the evolution and composition of continental lithosphere, the mantle stratigraphy beneath the Mojave Desert was constrained usi...
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ژورنال
عنوان ژورنال: Tectonics
سال: 1993
ISSN: 0278-7407
DOI: 10.1029/92tc02423