Results 81 to 90 of about 20,000 (300)

Capturing the Multi‐Decadal Evolution of Glacier–Permafrost Interactions in a High‐Alpine Environment (Ritord, Western Swiss Alps)

Permafrost and Periglacial Processes, EarlyView.
ABSTRACT This study investigates the multi‐decadal evolution of a glacier forefield under permafrost conditions in the Combins Massif (western Swiss Alps). A multi‐method approach based on historical and recent datasets is used to analyze its landform components.
Julie Wee, Hanne Hendrickx, Sebastián Vivero   +2 more
wiley   +1 more source

Rock typing and reservoir zonation of the Asmari Formation in a gas field, Persian Gulf [PDF]

International Journal of Mining and Geo-Engineering
In this study, the geological and petrophysical methods were combined to investigate the reservoir characteristics of the Asmari Formation in one of the gas fields in the Persian Gulf.
Behrooz Esrafili-Dizaji
doaj   +1 more source

“Cold Tropics”: Permafrost Existence and Thickness on Eastern Nevado Coropuna (Southern Peruvian Andes) Revealed by Ground‐Penetrating Radar and Geoelectrical Soundings

Permafrost and Periglacial Processes, EarlyView.
ABSTRACT The existence of permafrost was explored at tropical latitude on Nevado Coropuna (southern Peruvian Andes) using a combination of ground‐penetrating radar (GPR) and vertical electrical sounding (VES) in order to strengthen the mutual validation of data processing and interpretation.
Velnia Chacca, Ramón Pellitero, Adriano Ribolini, José Úbeda, Luis Mariano del Río, Ricardo Vila, Oscar Vilca   +6 more
wiley   +1 more source

Illustration of the sedimentary facies.

, 2018
Images of seafloor and relative Box-Cores representing the sedimentary facies of (A) the Gabes and (B) the Djerba transects.
Claudio Stalder (746592), Jorge E. Spangenberg (811168), Silvia Spezzaferri (746587), Christoph Neururer (5233958), Andres Rüggeberg (811166), Akram El Kateb (5233961)   +5 more
core   +1 more source

Potential Impacts of Low Flows on Fish Foodscapes and Production in a Braided River

River Research and Applications, EarlyView.
ABSTRACT Changes in river discharge affect the physical composition and connectivity of habitats which, in turn, may shape the spatial distribution of fish food abundance, accessibility and quality—the ‘foodscape’—of river ecosystems. However, the influence of river flows on fish foodscapes has received very little attention from scientists. We studied
Rick J. Stoffels, Richard S. A. White, Gergely T. Torok, Richard J. Measures, Kristy L. Hogsden, Alex F. Rose, Paul W. Lambert, Jaret P. Bilewitch, S. Elizabeth Graham, Lisa Smith, Amber R. Brooks, Brian J. Smith   +11 more
wiley   +1 more source

Sedimentary characteristics of coals in meandering river and braided river facies and during their transitions: A case study the Walloon Subgroup in the F8 block in the Surat Basin, Australia

Meitian dizhi yu kantan
ObjectiveAustralia is recognized as the fourth largest producer and the second largest exporter of coals in the world. The Bowen-Surat Basin is the largest coal producing basin in this country.
Zehong CUI, Yibo ZHAO, Zhihua LI, Shengli LI, Weiru LI   +4 more
doaj   +1 more source

Lacustrine basin evolution and coal accumulation of the Middle Jurassic in the Saishiteng coalfield, northern Qaidam Basin, China

Journal of Palaeogeography, 2016
Based on an extensive borehole survey of the Middle Jurassic coal-bearing sequences in the Saishiteng coalfield, northern Qaidam Basin (NQB), a total of 20 rock types and 5 sedimentary facies were identified, including braided river, meandering river ...
Meng Li, Long-Yi Shao, Lei Liu, Jing Lu, Baruch Spiro, Huai-Jun Wen, Yong-Hong Li   +6 more
doaj   +1 more source

Bridging the Late Antique Gap in Northwest Arabia: New Archaeological Evidence on the Occupation of Wādī al‐Qurā (al‐ʿUlā [AlUla], Saudi Arabia) Between the Third and Seventh Centuries CE

Arabian Archaeology and Epigraphy, EarlyView.
ABSTRACT In 2019, the Dadan Archaeological Project (CNRS/RCU/AFALULA) identified a Late Antique village 1 km south of ancient Dadan in the al‐ʿUlā valley (northwest Saudi Arabia). Three excavation seasons at this site (2021–2023) have uncovered a massive building constructed in the late third or early fourth cent.
Jérôme Rohmer, Abdulrahman Alsuhaibani, Charlène Bouchaud, Elora Chambraud, Vladimir Dabrowski, Hatem Djerbi, Fabien Lesguer, Hervé Monchot, Paul Picavet, Louise Purdue, Bertrand Riba, Shadi Shabo   +11 more
wiley   +1 more source

Deep carbonate gas reservoir sweet spot identification with seismic data based on dual-factor control of sedimentary facies and fault system

Frontiers in Earth Science
Deep carbonate reservoirs are attractive targets for gas development. These reservoirs are deeply buried, and commonly possess strong heterogeneity and poor seismic data quality, making the identification of favorable production areas (“sweet spots ...
Guanyu Zhang, Xuri Huang, Yungui Xu, Shuhang Tang, Kang Chen, Da Peng   +5 more
doaj   +1 more source

Hydrocarbon formation and accumulation of the deep Paleogene of the Jiyang Depression, Shengli Oilfield

Petroleum Exploration and Development, 2011
Using geochemistry, sedimentary and petroleum geology methods, and based on the analysis of spatial distribution of deep source rocks and sedimentary organic facies, the favorable exploration prospects in the Jiyang Depression, Shengli Oilfield are ...
Linye Zhang, Xingyou Xu, Qing Liu, Xiangxing Kong, Shouchun Zhang   +4 more
doaj   +1 more source