Field Mapping At Northern Basin and Range Geothermal Region (1993)

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Exploration Activity: Field Mapping At Northern Basin and Range Geothermal Region (1993)

Exploration Activity Details
Location Northern Basin and Range Geothermal Region
Exploration Technique Field Mapping
Activity Date 1993

Usefulness not indicated
DOE-funding Unknown

 
Notes
New apatite fission track cooling age and track length data, supplemented by other information, point to the Early to Middle Miocene as an additional time of very significant extension-induced uplift and range formation. Many ranges in a 700-km-long north-south corridor from the Utah-Nevada-Idaho border to southernmost Nevada experience extension and major exhumation in Early to Middle Miocene time. Reconnaissance apatite ages from the Toiyabe Range and environs (NV) are (approximately)15 Ma and geologic data indicate Early to Middle Miocene extension at Yerington NV (Proffet and Dillis, 1984). Thus, it appears from the available data that the Early to Middle Miocene was an important, and previously little recognized, period of major extension over broad areas of the northern Basin and Range.

 
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