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Paleogene strata of the Eastern Los Angeles basin, California: Paleogeography and constraints on neogene structural evolution

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Paleogene strata of the Eastern Los Angeles basin, California: Paleogeography and constraints on neogene structural evolution; 2000; Article; Journal; Bulletin of the Geological Society of America; McCulloh, T. H.; Beyer, L. A.; Enrico, R. J.

Summary

Post-Paleogene dextral slip of 8-9 km is demonstrated for the southeastern part of the Whittier fault zone in the eastern Los Angeles basin area of southern California. A linear axis of greatest thickness for the combined upper Paleocene and lower to lower-middle Eocene clastic formations intersects the fault zone and is offset by it to give the new measure. Fragmentary evidence hints that the Whittier structural zone may have exerted control on bathymetric-topographic relief and sedimentation even in latest Paleocene (ca. 54 Ma). A clear topographic influence was exerted by 20-17 Ma. Strike-slip and present deformational style is younger than ca. 8 Ma. Our Paleogene isopach map extends as far west as long 117??58'W and is a foundation [...]

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Type Scheme Key
local-index unknown 70022185
local-pk unknown 70022185
series unknown Geological Society of America Bulletin

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journalGeological Society of America Bulletin
parts
typevolume
value112
typeissue
value8
languageEnglish
citationTypeArticle

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