Results 121 to 130 of about 43,967 (245)

ESTRUCTURAS FUNGICAS (PYRENOMYCETES) DEL PERMICO SUPERIOR DEL URUGUAY

Publicación Electrónica de la Asociación Paleontológica Argentina, 2010
Some fungal structures (Pyrenomycetes) found on leaves and stem impressions from the Upper Permian of Uruguay are briefly described and illustrated.
Alicia I. Lutz, Rafael Herbst, K. Goth
doaj  

Depositional and stratigraphic evolution of a Permian megalake system: Implications for seiche‐influenced models

The Depositional Record, Volume 12, Issue 2, April 2026.
During the Late Permian, the rise of the Gondwanides Belt trapped marine waters, giving birth to a vast megalake. This lake shifted between overfilled, balanced‐fill and underfilled stages that are recorded by high‐frequency accommodation changes, while meteorological seiches shaped the sedimentary dynamic and produced heterolithic beds.
B. Christofoletti, L. V. Warren, F. G. Varejão, M. G. Rodrigues, M. G. Simões, D. V. Palcu, M. L. Assine   +6 more
wiley   +1 more source

Mitochondrial Phylogenomics and Genome Evolution in Anura: Insights From Structure and Gene Order Rearrangements

Ecology and Evolution, Volume 16, Issue 4, April 2026.
By analyzing 277 anuran mitochondrial genomes, this study reconstructs a robust phylogeny for frogs and toads, tracing their origins to the Triassic and major radiations to the Cretaceous‐Neogene. The research identifies 58 distinct gene arrangement patterns, providing a novel evolutionary framework.
Jiaoying He, Zike Li, Qingya Yang, Mengyao Zhu, Baiyun Xue, Yinmeng Hou, Ganggang Yang, Xiaohong Chen, Zhuo Chen   +8 more
wiley   +1 more source

Geological characteristics and controlling factors of deep tight gas sandstone reservoirs in the Upper Paleozoic of the western Ordos Basin, northwest China

Frontiers in Earth Science
Recent exploration has confirmed industrial gas flows from several wells in the western Ordos Basin, suggesting considerable hydrocarbon exploration potential. However, prior research on characteristics of tight sandstone reservoirs, diagenetic evolution,
Chengyu Zou, Chengyu Zou, Siyi Fu, Siyi Fu, Siyi Fu, Siyi Fu, Jianling Hu, Jianling Hu, Linjun Hou, Anqing Chen, Anqing Chen, Anqing Chen, Yuqing Xia, Hao Liu, Hao Liu, Yu Yu, Hongde Chen, Hongde Chen, Hongde Chen   +18 more
doaj   +1 more source

Geochemical Disequilibrium at the Brittle‐Ductile Transition

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 4, April 2026.
Abstract We investigate the microtextural, microchemical, and isotopic effects of late‐stage ductile deformation in quartzite mylonites and kyanite–muscovite–quartz veins from the Raft River shear zone (Utah). Quartz microstructures record pervasive disequilibrium, expressed by unannealed features including undulatory extinction, deformation lamellae ...
Raphaël Gottardi, Ryan McAleer, Gabriele Casale, Martin Wong   +3 more
wiley   +1 more source

Paleomagnetism of the Carboniferous-Permian Patquía Formation, Paganzo basin, Argentina: implications for the apparent polar wander path for South America and Gondwana during the Late Palaeozoic

Geologica Acta, 2011
The magnetic properties of the Carboniferous-Permian red beds of the Patquía Formation at Punta del Viento, Sierra de Umango and some previously reported localities, all in the Paganzo Basin (Argentina), have been studied.
S.E. GEUNA, L.D. ESCOSTEGUY, C.O. LIMARINO   +2 more
doaj  

Evolution of the East Antarctic Ice Sheet Since Glacial Inception From Seismic Stratigraphic Records in Vincennes Bay

Paleoceanography and Paleoclimatology, Volume 41, Issue 4, April 2026.
Abstract Seismic reflection data from Vincennes Bay, East Antarctica, provide the first insights into the Cenozoic evolution of the East Antarctic Ice Sheet (EAIS) in the Knox Coast. Long‐distance seismic horizon correlation allows age estimates for the seismic stratigraphic framework constructed for the continental shelf.
Timo Mühlberger‐Krause, Karsten Gohl, Katharina Hochmuth, German Leitchenkov, Chiara A. Tobisch, Rachel Barrett, Johann P. Klages, Sebastian Krastel   +7 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, Volume 49, Issue 2, Page 433-447, April 2026.
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

GYPSUM DEPOSITS IN THE REPUBLIC OF CROATIA

Rudarsko-geološko-naftni Zbornik, 2002
The occurences and deposits of gypsum can be found in big karst poljes (Sinjsko, Vrličko, Petrovo, Kosovo and Kninsko) as well as in tectonnically predestined river valleys of Zrmanja, Butišnica and Una.
Anto Gabrić , Boris Šinkovec, Krešimir Sakač, Gordan Kuljak   +3 more
doaj  

Discussion on structural evolution of Mesozoic Peninsular Malaysia [PDF]

, 1991
Altermann, Altermann, Audley-Charles, Audley-Charles, Buffetaut, Chakraborty, Fontaine, Fuller, Haile, Helmcke, Helmcke, Helmcke, Helmcke, Helmcke, Macdonald, Metcalfe, Metcalfe, Stauffer, Stauffer, Tan, Winkel, Wolfart, ªengör   +22 more
core   +1 more source