Devonian carbonate rocks of the southern Hot Creek Range reflect a shift to the east of the carbonate shelf edge and a progressively deeper-water lithotope from late
Early Devonian to early Middle Devonian time. Lower Devonian mudstones of the McColley Canyon Formation were deposited on an open shelf, dolomitized, and...
Detailed geologic mapping in the Mormon Mountains and
new geophysical data provide significant insight into
contractional and extensional tectonics in southern Nevada,
southwest Utah, and northwest Arizona. The rocks in the
region were complexly deformed during two distinct tectonic
episodes. Numerous interrelated events occurred within each
episode. The first tectonic...
Incubation experiments with an acid poorly drained soil have
shown that the application of neutral soluble salts influenced the level
of extractable Mn. The application of a salt which lowered the soil
pH either increased the extractable Mn or retarded the oxidation
and/or fixation of extractable Mn. This effect was...
Paleozoic dolomites, limestones, and detrital clastic rocks
were mapped in the Bellevue Peak 15 minute quadrangle in the
southern Mahogany Hills, Nevada. Sedimentary rock units in this
area represent shallow-shelf eastern assemblage deposits.
Shallow-shelf carbonates characterized deposition from at
least Ordovician through Late Devonian time, when clastics derived
from the...
Detailed bathymetric survey data were collected along the Peruvian
continental margin and were compiled by the author and other
investigators to construct a new bathymetric map for the area between
6° to 18°S latitude. Based on this map and individual bathymetric
profiles, the continental shelf topography is essentially flat. Four...