Cordilleran Foreland Basin evolution in response to interactive Cretaceous thrusting and foreland partitioning, southwestern Montana

1988 ◽  
pp. 489-514 ◽  
Author(s):  
Robert K. Schwartz ◽  
Peter G. DeCelles
Keyword(s):  
Foreland Basin ◽  
Basin Evolution ◽  
Southwestern Montana ◽  
Cordilleran Foreland

Andean Mountain Building and Foreland Basin Evolution During Thin‐ and Thick‐Skinned Neogene Deformation (32–33°S)

Tectonics ◽  
2020 ◽  
Vol 39 (3) ◽  
Author(s):  
Chelsea Mackaman‐Lofland ◽  
Brian K. Horton ◽  
Facundo Fuentes ◽  
Kurt N. Constenius ◽  
Richard A. Ketcham ◽  
...  
Keyword(s):  
Foreland Basin ◽  
Basin Evolution ◽  
Mountain Building

scholarly journals Coupled Andean Growth and Foreland Basin Evolution, Campanian–Cenozoic Bagua Basin, Northern Peru

Tectonics ◽  
2020 ◽  
Vol 39 (7) ◽  
Author(s):  
Federico Moreno ◽  
Carmala N. Garzione ◽  
Sarah W. M. George ◽  
Brian K. Horton ◽  
Lauren Williams ◽  
...  
Keyword(s):  
Foreland Basin ◽  
Basin Evolution ◽  
Northern Peru

Dating lacustrine carbonate strata with detrital zircon U-Pb geochronology

Geology ◽  
2020 ◽  
Author(s):  
Emily S. Finzel ◽  
Justin A. Rosenblume
Keyword(s):  
Detrital Zircon ◽  
Relative Proportion ◽  
Foreland Basin ◽  
Depositional Environments ◽  
Detrital Zircons ◽  
Sediment Flux ◽  
Coarse Grained ◽  
Southwestern Montana ◽  
Tectonically Active ◽  
Lacustrine Carbonate

Carbonate lacustrine strata in nonmarine systems hold great potential for refining depositional ages through U-Pb dating of detrital zircons. The low clastic sediment flux in carbonate depositional environments may increase the relative proportion of zircons deposited by volcanic air fall, potentially increasing the chances of observing detrital ages near the true depositional age. We present U-Pb geochronology of detrital zircons from lacustrine carbonate strata that provides proof of concept for the effectiveness of both acid-digestion recovery and resolving depositional ages of nonmarine strata. Samples were collected from Early Cretaceous foreland basin fluvial sandstone and lacustrine carbonate in southwestern Montana (USA). Late Aptian–early Albian (ca. 115–110 Ma) maximum depositional ages young upsection and agree with biostratigraphic ages. Lacustrine carbonate is an important component in many types of tectonic basins, and application of detrital zircon U-Pb geochronology holds considerable potential for dating critical chemical and climatic events recorded in their stratigraphy. It could also reveal new information for the persistent question about whether the stratigraphic record is dominated by longer periods of background fine-grained sedimentation versus short-duration coarse-grained events. In tectonically active basins, lacustrine carbonates may be valuable for dating the beginning of tectonic subsidence, especially during periods of finer-grained deposition dominated by mudrocks and carbonates.

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