River terrace evidence of tectonic processes in the eastern North American plate interior, South Anna River, Virginia

2021 ◽  
Author(s):  
Frank J. Pazzaglia ◽  
Helen Malenda ◽  
Matthew McGavick ◽  
Cody Raup ◽  
Mark Carter ◽  
...  
Keyword(s):  
North American ◽  
North American Plate ◽  
River Terrace ◽  
Tectonic Processes

Overview of Naturally Occurring Asbestos in California and Southwestern Nevada

2020 ◽  
Vol 26 (1) ◽  
pp. 9-14
Author(s):  
R. Mark Bailey
Keyword(s):  
Sierra Nevada ◽  
North American ◽  
Volcanic Belt ◽  
Island Arc ◽  
North American Plate ◽  
Mountain Range ◽  
The North ◽  
Rock Types ◽  
Naturally Occurring ◽  
Naturally Occurring Asbestos

ABSTRACT Naturally occurring asbestos (NOA) is being discovered in a widening array of geologic environments. The complex geology of the state of California is an excellent example of the variety of geologic environments and rock types that contain NOA. Notably, the majority of California rocks were emplaced during a continental collision of eastward-subducting oceanic and island arc terranes (Pacific and Farallon plates) with the westward continental margin of the North American plate between 65 and 150 MY BP. This collision and accompanying accretion of oceanic and island arc material from the Pacific plate onto the North American plate, as well as the thermal events caused by emplacement of the large volcanic belt that became today's Sierra Nevada mountain range, are the principal processes that produced the rocks where the majority of NOA-bearing units have been identified.

GPS determination of current Pacific–North American plate motion

Geology ◽  
1999 ◽  
Vol 27 (4) ◽  
pp. 299 ◽  
Author(s):  
Kyle Antonelis ◽  
Daniel J. Johnson ◽  
M. Meghan Miller ◽  
Randy Palmer
Keyword(s):  
North American ◽  
North American Plate ◽  
Plate Motion ◽  
Pacific North American

scholarly journals Mantle below North American plate newly modeled

Eos ◽  
2014 ◽  
Vol 95 (50) ◽  
pp. 484-484
Author(s):  
JoAnna Wendel
Keyword(s):  
North American ◽  
North American Plate
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