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Zircon Geochronology of Volcanic Rocks from the Trans-Pecos Orogenic Belt, Western Texas: Timing the Cessation of Laramide Folding, Uplift, and Post Flat-Slab Ignimbrite Flare Ups
(2014-05)
This study refines regional differences in the cessation of Laramide compressional deformation and the subsequent initiation of episodic slab-asthenosphere influenced ignimbrite-rhyolite volcanism in West Texas by utilizing ...
Valley Widening and the Composite Nature of Valley Margin Sequence Boundaries: Evidence from the Neilson Wash Compound Valley Fill, Cretaceous Ferron Sandstone, Utah
(2013-05)
Incised valleys are at the center of a debate about whether sequence boundaries are chronostratigraphically significant. Current research has suggested that the sequence boundary that makes up the floor and walls of an ...
Facies and stratigraphic framework of the Eagle Ford Shale in South Texas
(2013-05)
The Upper Cretaceous Eagle Ford Shale, in South and East Texas, consists of organic matter-rich fossiliferous marine shale. It is one of the most actively drilled targets for oil and gas in the United States, due to new ...
3D Allostratigraphic Mapping and Facies Heterogeneity of a Compound Tributary Incised Valley System, Turonian Ferron Sandstone, Notom Delta, South-Central Utah
(2013-05)
Incised valley systems are important for sequence stratigraphic and
exploration purposes. The tributary component of these systems may inherit complicated, self-similar, plan-view morphologies from the drainage networks ...
Lateral and Temporal Facies Variations in a Quaternary Travertine Deposit, Belen, New Mexico
(2013-12)
This study examines the spatial relationships within travertine deposits, including variations in facies, constituents, and porosity, in two Quaternary travertine quarries near Belen, New Mexico. It integrates a combination ...
Stratigraphic Controls on the Structural Evolution of the Sierra Madre Oriental Fold-thrust Belt, Eastern Mexico
(2012-05)
Late Cretaceous–Paleogene Laramide shortening within the Sierra Madre Oriental fold-thrust belt (SMO) along the western margin of the Gulf of Mexico is the product of shallow subduction of the Farallon plate beneath the ...
The Dhaulagiri Transtensional Zone: an active fault zone within the Western Nepal Himalaya
(2012-05)
Field mapping and remote sensing in the Dhaulagiri Range of Nepal reveal a regionally extensive active fault zone linking the Tibrikot Fault to the Dhaulagiri Southwest Fault, herein termed the Dhaulagiri Transtensional ...
Detrital Zircon Geochronology of Cambro-Ordovician Siliciclastic Units of the Humber Arm Allochthon, Newfoundland, Canada
(2012-08)
Paleogeographic reconstruction of the Newfoundland area suggests that various arc terranes developed during the opening of the Iapetus Ocean and development of the Cambro-Ordovician Laurentian stable continental margin. ...
Geometry of the Dolpo-Mugu Folds: Implications for the Deep Crustal Structure of Central Nepal
(2012-05)
Current shortening calculations (700-300 km) across the strike of the Himalayan orogen are significantly less than what has been predicted by plate reconstruction models and other regional studies (1200-800 km). This study ...
MID-ATLANTIC RIDGE (12~16oN) BATHYMETRIC ANALYSIS BY EMPIRICAL MODE DECOMPOSITION
(2012-05)
The study represents an analysis of bathymetry at and proximal to the Mid-Atlantic Ridge (MAR) between 12°40’~16°15’N, 44.4~45.6°W, where are large bathymetric data set exist in a region where Oceanic Core Complexes have ...