Results 91 to 100 of about 46,126 (273)

Mapping High‐TDS Groundwater Near Impoundments Using Ground and Waterborne Towed Electromagnetics

Groundwater, EarlyView.
Abstract Long‐term monitoring at landfills and impoundments containing coal combustion products (CCPs) or other industrial wastes is essential for detecting possible leachate releases to groundwater and mapping contamination plumes. This study evaluates a novel, non‐invasive geophysical approach—towed time‐domain electromagnetic (TEM) surveys—for non ...
Piyoosh Jaysaval, Jonathan N. Thomle, Esteban J. Bowles‐Martinez, Rebecca L. Kreuzer, Frederick D. Day‐Lewis   +4 more
wiley   +1 more source

Mechanisms of Uranium and Thorium Accumulation in the Lower Ediacaran Marine Sediments from the Upper Yangtze Platform, China: Implications for Helium Exploration

Journal of Marine Science and Engineering
The ocean is a significant global reservoir of uranium (U) and thorium (Th). These elements can be incorporated into marine sediments through processes involving organic matter (OM), redox conditions, terrigenous inputs, and mineral interactions.
Yi Zou, Qingyong Luo, Huayao Zou, Jianfa Chen, Wenming Ji, Jin Wu, Tao Du, Xintong Liu, Zilong Fang, Wenxin Hu, Ye Zhang, Jinqi Qiao   +11 more
doaj   +1 more source

The Western Irish Namurian Basin reassessed [PDF]

, 2000
Current basin models for the Western Irish Namurian Basin (WINB) envisage an elongate trough along the line of the present-day Shannon Estuary that was infilled with clastic sediments derived from a hinterland that lay to the W or NW.
Best, J.L., Wignall, P.B.
core  

Sedimentary geology of the Middle Carboniferous of the Donbas region (Dniepr-Donets basin, Ukraine) [PDF]

, 2015
Peer reviewedPublisher ...
Abels, Hemmo A., Boekhout, Flora, Bosch, Wolter, Geluk, Mark, Hamers, Maartje, Kitchka, Alexander, Stephenson, Randell A., van der Meer, Douwe G., van Hinsbergen, Douwe J.J.   +8 more
core   +2 more sources

Morphology and osteo‐histology of the weigeltisaurid wing: Implications for aerial locomotion in the world's first gliding reptiles

Journal of Anatomy, EarlyView.
This study investigates the morphology and osteo‐histology of the wing skeleton of the world's first gliding reptiles, showing how it differs from those of extant gliding lizards, yet is also convergently similar. These findings pave the way for future biomechanical studies on the gliding locomotion of these emblematic fossil animals. Abstract The Late
Valentin Buffa, Jordan Gônet, Thomas van de Kamp, Marcus Zuber, Marc Girondot, Eberhard Frey, J.‐Sébastien Steyer, Michel Laurin   +7 more
wiley   +1 more source

Paleoclimate characteristics of source area weathering and metallogenic implication of cretaceous black shales in the Mamfe basin, (SW Cameroon): Evidence from lithogeochemistry. [PDF]

Heliyon, 2023
Ekoko Eric B, Adama A, Etutu MEMM, Njinto Kwankam F, Salomon Betrant B, Esue MF.   +5 more
europepmc   +1 more source

The fate of the homoctenids (Tentaculitoidea) during the Frasnian-Famennian mass extinction (Late Devonian) [PDF]

, 2006
The homoctenids (Tentaculitoidea) are small, conical-shelled marine animals which are amongst the most abundant and widespread of all Late Devonian fossils.
Alberti GKB, Babin C, Becker RT, Blumenstengel H, Bond DPG, Boueek B, Buggisch W, Dzik J, Farsan NM, Feist R, Fisher DW, Freyer G, Grabau AW, Hajlasz B, Hallam A, Jansen U, Klapper G, Lardeux H, Li YX, Li YX, Ludvigsen R, Lutke F, Lyashenko GP, Lyashenko GP, Lyashenko GP, Lyashenko GP, McLaren DJ, Morrow JR, Over DJ, Racki G, Racki G, Raup DM, Roemer FA, Ruchholz K, Sandberg CA, Sandberg CA, Sauerland U, Schindler E, Scotese CR, Sepkoski JJ, Sherrard K, Truyols-Massoni M, Tunnicliff SP, Walliser OH, Walliser OH, Weedon MJ, Yochelson EL, Zagora K, Zhang R   +48 more
core   +1 more source

Depositional Facies, Sequence Stratigraphy, and Diagenesis of Lower Cretaceous Carbonate Reservoir, Southern Iraq: Implications for Petroleum Exploration

Journal of Petroleum Geology, EarlyView.
ABSTRACT The Lower Cretaceous Yamama Formation of southern Iraq represents a key carbonate reservoir within Iraq and the Middle East, yet its complex depositional facies architecture and diagenetic alterations present challenges for predicting reservoir quality.
A. K. A. Mohammed, F. Velledits, I. Q. Mohammed, M. Alsuwaidi, H. Mansurbeg, F. Kristály, D. K. Ivanova, Eloi González‐Esvertit, A. Awdal   +8 more
wiley   +1 more source

Geochemical and Seismic Constraints on the Role of Mud Diapirs in Petroleum Migration and Accumulation in the Recôncavo Basin, NE Brazil

Journal of Petroleum Geology, EarlyView.
ABSTRACT In the Recôncavo Basin, Northeast of Brazil, mud diapirs have been reported for decades, but their role within the basin's petroleum system remains poorly constrained. Here, we combine 2D seismic interpretation, field observations, and organic geochemical analyses of rocks and oil seeps to investigate the relationship between diapirism and ...
Cora Mattos, Egberto Pereira, Lucas Pinto Heckert Bastos, René Rodrigues   +3 more
wiley   +1 more source

Organic matter characteristics in black shales of the southwestern paleogene N'kapa formation, Douala Sub-basin Cameroon: Evidence from stable isotopes and rock-eval pyrolysis

Evolving Earth
Shallow marine black shales from outcrops, river channels, drilled and dug wells in Dibombari-Kompina-Mian (Stage-1) and Pendanboko (Stage-2) of the Paleogene N'kapa Formation in Douala Sub-basin were studied.
Ngong Roger Ngia, Elie Fosso Menkem, Alexandrine N'nanga, Christopher Fuanya, Median Yongye   +4 more
doaj   +1 more source