Results 11 to 20 of about 658,079 (225)

Detrital Zircon Provenance and Lithofacies Associations of Montmorillonitic Sands in the Maastrichtian Ripley Formation: Implications for Mississippi Embayment Paleodrainage Patterns and Paleogeography

Geosciences, 2020
We provide new detrital zircon evidence to support a Maastrichtian age for the establishment of the present-day Mississippi River drainage system. Fieldwork conducted in Pontotoc County, Mississippi, targeted two sites containing montmorillonitic sand in
Jennifer N. Gifford, Elizabeth J. Vitale, Brian F. Platt, David H. Malone, Inoka H. Widanagamage   +4 more
doaj   +1 more source

Geomechanical properties will constrain CO2 injection into the lower Ordovician Rose Run sandstone deep saline reservoir, Appalachian Basin, Kentucky, USA

Journal of Rock Mechanics and Geotechnical Engineering, 2021
The Kentucky Geological Survey (KGS) 1 Hanson Aggregates stratigraphic research well, Carter County, Kentucky, USA, was drilled to a total depth of 1474 m as a field-scale test of potential CO2 storage reservoir properties in the Central Appalachian ...
John Richard Bowersox, Stephen F. Greb, Junfeng Zhu, David C. Harris   +3 more
doaj   +1 more source

Pathways and mechanisms of Late Ordovician (Katian) faunal migrations of Laurentia and Baltica [PDF]

Estonian Journal of Earth Sciences, 2015
Late Ordovician strata within the Cincinnati Basin record a mass faunal migration event during the C4 and C5 depositional sequences. The geographic source region for the invaders and the paleoceanographic conditions that facilitated dispersal into the ...
Adriane R. Lam, Alycia L. Stigall
doaj   +1 more source

An Expanded Investigation of Atmospheric Rivers in the Southern Appalachian Mountains and Their Connection to Landslides

Atmosphere, 2019
Previous examination of rain gauge observations over a five-year period at high elevations within a river basin of the southern Appalachian Mountains showed that half of the extreme (upper 2.5%) rainfall events were associated with an atmospheric river ...
Douglas K. Miller, Chelcy Ford Miniat, Richard M. Wooten, Ana P. Barros   +3 more
doaj   +1 more source

Estimation of Runoff and Sediment Yield in Response to Temporal Land Cover Change in Kentucky, USA

Land, 2023
Land cover change is prevalent in the eastern Kentucky Appalachian region, mainly due to increased surface mining activities. This study explored the potential change in land cover and its relationship with stream discharge and sediment yield in a ...
Smriti Kandel, Buddhi Gyawali, Sandesh Shrestha, Demetrio Zourarakis, George Antonious, Maheteme Gebremedhin, Bijay Pokhrel   +6 more
doaj   +1 more source

Unconventional Petroleum Sedimentology: A Key to Understanding Unconventional Hydrocarbon Accumulation

Engineering, 2022
The commercial exploitation of unconventional petroleum resources (e.g., shale oil/gas and tight oil/gas) has drastically changed the global energy structure within the past two decades.
Caineng Zou, Zhen Qiu, Jiaqiang Zhang, Zhiyang Li, Hengye Wei, Bei Liu, Jianhua Zhao, Tian Yang, Shifa Zhu, Huifei Tao, Fengyuan Zhang, Yuman Wang, Qin Zhang, Wen Liu, Hanlin Liu, Ziqing Feng, Dan Liu, Jinliang Gao, Rong Liu, Yifan Li   +19 more
doaj   +1 more source

Phylogenetic paleobiogeography of Late Ordovician Laurentian brachiopods [PDF]

Estonian Journal of Earth Sciences, 2014
Phylogenetic biogeographic analysis of four brachiopod genera was used to uncover large-scale geologic drivers of Late Ordovician biogeographic differentiation in Laurentia. Previously generated phylogenetic hypotheses were converted into area cladograms,
Jennifer E. Bauer, Alycia L. Stigall
doaj   +1 more source

Reservoir properties and CO2 storage capacity of the Rose Run Sandstone (Lower Ordovician, Knox Group) in the Central Appalachian Basin, northeast Kentucky

Frontiers in Energy Research, 2022
The Lower Ordovician Rose Run Sandstone is a potential CO2 storage reservoir in the Central Appalachian Basin in northeast Kentucky where the Kentucky Geological Survey’s 1 Hanson Aggregates research well penetrated it at drill depths of 1,000–1,009.5 m.
J. Richard Bowersox, Stephen F. Greb, David C. Harris   +2 more
doaj   +1 more source

Temporal variability of precipitation in the Upper Tennessee Valley

Journal of Hydrology: Regional Studies, 2015
Study region: Upper Tennessee River Basin, United States. Study focus: The temporal variation of precipitation in the Upper Tennessee River Basin was investigated by utilizing datasets from the Tennessee Valley Authority (TVA) rain gauge network ...
James R. Jones, John S. Schwartz, Kelsey N. Ellis, Jon M. Hathaway, Curtis M. Jawdy   +4 more
doaj   +1 more source

Depositional Heterogeneities and Brittleness of Mudstone Lithofacies in the Marcellus Subgroup, Appalachian Basin, New York, U.S.A.

Energies, 2021
Organic-rich rocks of the Marcellus subgroup in the study area consist of a diverse suite of mudstone lithofacies that were deposited in distinct facies belts. Lithofacies in the succession range in composition from argillaceous to siliceous, calcareous,
Izhar Ul Haq, Eswaran Padmanabhan, Omer Iqbal   +2 more
doaj   +1 more source