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Map Satellite One of the best exposed and thickest sections of the Monterey formation in the State is found in this canyon. The formation is one of the most widespread in California. Sedimentary, it is characterized by abundant siliceous shales and chert beds which are of mid-Miocene marine origin. Zemora Creek, a tributary, is the type locality of the Zemorian stage, one of the more important divisions of the early Lower Miocene. A number of microfossils have been recovered here. The floor of the canyon is Quaternary alluvium. In the area, a combination of lower and upper Sonoran flora and fauna is found. It is the type locality for Clarkia tembloriensis and Eriogonum temblorense. The latter and Amsinckia vernicosa var. furcata, which grows here also, are both rare. San Joaquin kit foxes, Vulpes macrotis mutica, which are rare, frequent the canyon. Integrity: Virtually undisturbed, though grazing is permitted. Use: Private Ref: Bramlette, M. N. 1946. Monterey Formation of California and the Origin of its Siliceous Rocks. U.S. Geo. Sur. Prof. Pap. #212. December 1975
Inventory of California Natural Areas
Revision © 2008 Steven Louis Hartman
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