Late Tertiary geology southeast of Mono Lake, California

Stratigraphy and structure, Death Valley, California

“…The probabilities are that the frontal fault along the Black Mountains is a Quaternary structure. Block faulting that outlined the ·present basins and range elsewhere in the region is regarded as largely of Quaternary age (Gilbert, 1941;Axelrod and Ting, 1960).…”

Structural geology and volcanism of Owens Valley region, California: A geophysical study

“…According to Rinehart and Ross (1957), the extrusion o:f the Bishop tuff o:f Gilbert (1938) blocked the part o:f the Owens River valley south o:f what is now artificial Lake Crowley and impounded a lake at least 80 square miles in area. Mayo (1934) estimated the greatest depth o:f the lake.…”

“…McGee till is found on McGee Mountain, which towers above Long Valley. According to Blackwelder _(1931, p. 904 Gilbert (1938Gilbert ( , 1941) made a detailed study of the volcanism southeast of Mono Lake and tentatively correlated tJhe earlier volc.anic rocks with similar rocks in the Hawthorne quadrangle and the Sweetwater Range of Nevada. Chelikowsky ( 1940) studied the rhyolite near the center of Long Valley.…”

“…More recently, Rinehart and Ross (1957) did detruiled geologic mapping in the Long Valley area. Most of the discussion of volcanic rocks that follows has been summarized from the papers of Gilbert ( 1938Gilbert ( , 1941.…”

“…The oldest of the volcanic rocks of Pleistocene age is the Bishop tuff of Gilbert ( 1938). The age of the Bishop tuff has recently been determined by potassiumargon dating to be about 1 million years ( Evernden and others, 1959).…”