Detachment Folds versus Fault-propagation Folds, and Their Truncation by Thrust Faults

2004 ◽  
pp. 331-362
Keyword(s):  
Thrust Faults ◽  
Fault Propagation

Hanna of Wyoming—The Rockies’ Deepest Basin

2017 ◽  
Vol 54 (4) ◽  
pp. 265-293 ◽  
Author(s):  
Roger Matson ◽  
Jack Magathan
Keyword(s):  
Upper Cretaceous ◽  
Oil And Gas ◽  
Thrust Faults ◽  
Depositional History ◽  
Deep Sediment ◽  
Northern Margin ◽  
Lacustrine Shale ◽  
Hanna Basin ◽  
Fluvial Sandstone

The Hanna Basin is one of the world’s deeper intracratonic depressions. It contains exceptionally thick sequences of mature, hydrocarbon-rich Paleozoic through Eocene rocks and has the requisite structural and depositional history to be a significant petroleum province. The Tertiary Hanna and Ferris formations consist of up to 20,000 ft of organic-rich lacustrine shale, shaly mudstone, coal, and fluvial sandstone. The Upper Cretaceous Medicine Bow, Lewis, and Mesaverde formations consist of up to 10,000 ft of marine and nonmarine organic-rich shale enclosing multiple stacked beds of hydrocarbon-bearing sandstone. Significant shows of oil and gas in Upper Cretaceous and Paleocene rocks occur in the basin. Structural prospecting should be most fruitful around the edges where Laramide flank structures were created by out-of-the-basin thrust faults resulting from deformation of the basin’s unique 50-mile wide by 9-mile deep sediment package. Strata along the northern margin of the basin were compressed into conventional anticlinal folds by southward forces emanating from Emigrant Trail-Granite Mountains overthrusting. Oil and gas from Pennsylvanian to Upper Cretaceous aged rocks have been found in such structures near the Hanna Basin. Only seven wells have successfully probed the deeper part of the Hanna Basin (not including Anadarko’s #172 Durante lost hole, Sec. 17, T22N, R82W, lost in 2004, hopelessly stuck at 19,700 ft, unlogged and untested). Two of these wells tested gas at commercial rates from Upper Cretaceous rocks at depths of 10,000 to 12,000 ft. Sparse drilling along the Hanna Basin’s flanks has also revealed structures from 3,000 to 7,000 feet deep which yielded significant shows of oil and gas.

HYPER-CRYPTIC THRUST FAULTS IN THE RUMFORD ALLOCHTHON, SADDLEBACK WIND, CARTHAGE, MAINE

2018 ◽  
Author(s):  
Bryce Neal ◽  
◽  
Douglas N. Reusch ◽  
Justin V. Strauss ◽  
Dwight Bradley ◽  
...  
Keyword(s):  
Thrust Faults

Predicting the propagation and interaction of frontal accretionary thrust faults with work optimization

2020 ◽  
Vol 786 ◽  
pp. 228461
Author(s):  
Jessica McBeck ◽  
Michele Cooke ◽  
Laura Fattaruso
Keyword(s):  
Thrust Faults
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