Lower Mesozoic sedimentary and volcanic rocks of the Yerington region, Nevada, and their regional context
Published:July 01, 2008
John M Proffett, John H Dilles, 2008. "Lower Mesozoic sedimentary and volcanic rocks of the Yerington region, Nevada, and their regional context", Ophiolites, Arcs, and Batholiths: A Tribute to Cliff Hopson, James E. Wright, John W. Shervais
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Metamorphosed Triassic and Jurassic volcanic and sedimentary rocks have been mapped, described, and measured in the Singatse, Buckskin, and northern Wassuk Ranges near Yerington, west-central Nevada. Herein, we establish new formation names for these rocks and correlate them regionally with other Triassic-Jurassic rocks, in part by use of fossil and radiometric ages. From oldest to youngest, rocks in the Singatse Range consist of a Middle Triassic or older volcanic sequence (McConnell Canyon volcanics), an Upper Triassic sequence of interbedded fine-grained clastic sedimentary rocks, carbonate rocks, tuffaceous sedimentary rocks, and tuffs (Malachite Mine Formation and tuff of Western Nevada Mine), a...