scholarly journals Middle Miocene to Holocene tectonics, basin evolution, and paleogeography along the southern margin of the Snake River Plain in the Knoll Mountain–Ruby–East Humboldt Range region, northeastern Nevada and south-central Idaho

Geosphere ◽  
2017 ◽  
Vol 13 (6) ◽  
pp. 1901-1948 ◽  
Author(s):  
Phyllis Camilleri ◽  
Jack Deibert ◽  
Michael Perkins
Keyword(s):  
Middle Miocene ◽  
Snake River Plain ◽  
Snake River ◽  
Basin Evolution ◽  
South Central ◽  
Southern Margin ◽  
River Plain ◽  
East Humboldt Range ◽  
Central Idaho

Age of Irrigation Water in Ground Water from the Eastern Snake River Plain Aquifer, South-Central Idaho

Ground Water ◽  
2000 ◽  
Vol 38 (2) ◽  
pp. 264-283 ◽  
Author(s):  
L.N. Plummer ◽  
M.G. Rupert ◽  
E. Busenberg ◽  
P. Schlosser
Keyword(s):  
Ground Water ◽  
Irrigation Water ◽  
Snake River Plain ◽  
Snake River ◽  
South Central ◽  
River Plain ◽  
Central Idaho

The geology of split butte — A maar of the south-central snake river plain, Idaho

1980 ◽  
Vol 43 (3) ◽  
pp. 453-471 ◽  
Author(s):  
M. B. Womer ◽  
R. Greely ◽  
J. S. King
Keyword(s):  
Snake River Plain ◽  
Snake River ◽  
The South ◽  
South Central ◽  
River Plain

Miocene tephra beds in the Cypress Hills of Saskatchewan, Canada

1992 ◽  
Vol 29 (1) ◽  
pp. 48-51 ◽  
Author(s):  
Willem J. Vreeken ◽  
John A. Westgate
Keyword(s):  
Middle Miocene ◽  
Volcanic Eruptions ◽  
Snake River Plain ◽  
Snake River ◽  
Weighted Mean ◽  
Tephra Layers ◽  
Tephra Beds ◽  
River Plain ◽  
Erosion Surface ◽  
Rhyolitic Tephra

Six rhyolitic tephra layers from ancient loess and related detritus in the Cypress Hills, Saskatchewan, represent separate volcanic eruptions from the Snake River Plain. Idaho, U.S.A. The weighted mean age and uncertainty of the youngest tephra bed is 8.3 ± 0.2 Ma, using the isothermal plateau fissiontrack technique on its hydrated glass shards. The loess that hosts five of these tephra beds extends across the Cypress Plain, which is the oldest (Middle Miocene) and highest depositional surface in the Interior Plains, and also occurs on four juxtaposed erosion surfaces. It appears that the first and maybe the second erosion surface began forming before 10 Ma, and that formation of the second, third, and fourth erosion surfaces was completed between 10 and 8.3 Ma.

Calcareous algae and associated microfossils from Mid-Carboniferous rocks in east-central Idaho

1986 ◽  
Vol 60 (2) ◽  
pp. 476-496 ◽  
Author(s):  
John R. Groves
Keyword(s):  
Snake River Plain ◽  
Calcareous Algae ◽  
Snake River ◽  
East Central ◽  
Genus Level ◽  
Upper Paleozoic ◽  
Biostratigraphic Correlation ◽  
River Plain ◽  
Central Idaho

Mid-Carboniferous (upper Chesterian–lower Atokan) rocks exposed north of the Snake River Plain in east-central Idaho are assigned to the Arco Hills, Bluebird Mountain and lower Snaky Canyon formations (ascending order). In the southern Lemhi Range, calcareous algae and associated microproblematica from these rocks include representatives of at least 13 genera and genus-level taxa within the Dasycladaceae, Aoujgaliaceae, Ungdarellaceae, and incertae familiae. Local appearances of Masloviporidium delicata and Donezella lutugini are early Morrowan or younger as determined independently by studies of associated foraminifers and conodonts. Beresella polyramosa and Komia abundans are locally restricted to Atokan rocks. These findings are consistent with compiled data on worldwide stratigraphic distributions of these taxa, and suggest that certain Upper Paleozoic calcareous algae may be of limited value in biostratigraphic correlation.

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