Results 71 to 80 of about 1,803 (171)

Middle Devonian, late Carboniferous, and Triassic magmatic flare-ups in eastern Armorica (Sakarya Zone, Turkey) as revealed by detrital zircon U-Pb-Hf isotopic data

, 2023
The Sakarya Zone of northern Turkey contains a well-preserved Early-Middle Jurassic and Late Cretaceous submarine magmatic arc constructed over pre-Jurassic bedrocks that are considered to be the eastward extension of the Armorican Terrane Assemblage in ...
ÇELİK, ÖMER FARUK, Mohammadi, Ali, Wang, Jia-Min, Laurent, Oscar, Topuz, Gültekin, Mohammadı, Alı, CANDAN, OSMAN, Okuyucu, Cengiz   +7 more
core   +1 more source

Feldspar Albitization With Implications for Reservoir Quality Evolution of Eocene Turbidite Sandstones in Offshore Espírito Santo Basin, Eastern Brazil

Journal of Petroleum Geology, EarlyView.
ABSTRACT The diagenetic albitization of plagioclase and K‐feldspar grains is a transformative process that significantly alters sandstone's detrital composition and formation water chemistry, impacting reservoir quality. In this study, Eocene turbidite sandstones from the offshore Espírito Santo Basin, Brazil, were investigated to elucidate the role of
Eveline E. Zambonato, Luiz F. De Ros, Howri Mansurbeg   +2 more
wiley   +1 more source

Going silent? Evidence for independent losses of acoustic communication in tree crickets (Insecta, Orthoptera, Grylloidea, Oecanthidae)

Journal of Systematics and Evolution, EarlyView.
Our ancestral state reconstruction in tree crickets reveals multiple independent and irreversible losses of sound‐producing and ‐receiving structures, supporting the convergent evolution of the silent phenotype. We demonstrate strong evolutionary integration between forewings and tympana, although the discovery of ‘silent listeners′ and ‘deaf singers ...
Lucas Denadai de Campos, Jorge Alves Audino, Silvio Shigueo Nihei, Laure Desutter‐Grandcolas   +3 more
wiley   +1 more source

Early development of anoxia prior to the main euxinic phase of the Jenkyns Event on the margin of the Western Tethys (Sachrang Basin, Eastern Alps)

Sedimentology, EarlyView.
ABSTRACT Although the global expansion of oxygen‐depleted marine environments during the Early Toarcian Jenkyns Event (or Toarcian Oceanic Anoxic Event) is primarily inferred from successions in the NW European epicontinental basins, the timing of the expansion of anoxia in Tethyan basins, where hydrography potentially played a minor role, is poorly ...
Tamás Müller, Stefan Neumeister, Jan Schlögl, Emanuela Mattioli, Hans‐Jürgen Gawlick, Thomas J. Algeo, Adam Tomašových   +6 more
wiley   +1 more source

Drowned carbonate‐rimmed margin controlling shelf‐edge delta progradation and sedimentation dynamics: Upper Cretaceous Woodbine Formation, Texas, USA

Sedimentology, EarlyView.
ABSTRACT Shelf‐edge deltas are commonly interpreted to record basinward facies migration across uninterrupted, gently dipping shelf margins; however, examples from mixed siliciclastic‐carbonate margins reveal more complex depositional dynamics. Periods and areas of carbonate sedimentation within mixed siliciclastic‐carbonate margins can modify shelf ...
Abdulkarim Al‐Hussaini, Cornel Olariu, Charles Kerans, Ronald Steel   +3 more
wiley   +1 more source

Identification and Origin of Jurassic (~182 Ma) Zircon Grains from Chromitite within the Peridotite of the Jijal Complex, Kohistan Arc in North Pakistan

, 2020
The Jijal ultramafic–mafic complex in Pakistan probably preserves the most complete fragments of the petrological Moho. However, a few studies argue for multiple origins (including petrogenetic speculations and tectonic reconstructions) for ...
Chao Wang, Xiang-Li Ding, Li-Yun Zhang, Ya-Hui Yue, Lin Ding   +4 more
core   +1 more source

SHRIMP ion probe zircon geochronology and Sr and Nd isotope geochemistry for southern Longwood Range and Bluff Peninsula intrusive rocks of Southland, New Zealand [PDF]

, 2006
Permian–Jurassic ultramafic to felsic intrusive complexes at Bluff Peninsula and in the southern Longwood Range along the Southland coast represent a series of intraoceanic magmatic arcs with ages spanning a time interval of 110 m.y.
Ireland, Trevor R., Arculus, Richard J., Richard J. Arculus, Trevor R. Ireland, Richard C. Price, Price, Richard C., Maas, Roland, Roland Maas   +7 more
core   +1 more source

Geochemical and lithological justification of "the main source" concept of pre-Jurassic oil deposits in Krasnoleninsk arch (Tyumen region)

, 2014
Генезис залежей нефти доюрского комплекса Западной Сибири является предметом острых дискуссий. Общепризнано, что принимаемая концепция "главного источника" углеводородов в доюрских залежах определяет стратегию их поисков. Выполнено обоснование концепции
Исаев, Валерий Иванович, Кузина, Марина Яковлевна, Коржов, Юрий Владимирович   +2 more
core  

Early Jurassic tectonism occurred within the Basu metamorphic complex, eastern central Tibet: Implications for an archipelago-accretion orogenic model

, 2017
The Basu metamorphic complex, surrounded by ophiolitic melanges and intruded by a large volume of undeformed granitoid rocks along the eastern segment of the Bangong-Nujiang suture, holds one of the keys to understanding the pre-Cenozoic tectonic ...
Webb, AAG, Li, HQ, Tian-Fu Li, Shi-Wei Ma, Xu, ZQ, Hua-Qi Li, A. Alexander G. Webb, Xue-Meng Huang, Zhi-Qin Xu, Ma, SW, Huang, XM, Li, TF   +11 more
core   +1 more source

Pre-Alpine extensional tectonics of a peridotite-localized oceanic core complex in the Late Jurassic, high pressure Monviso ophiolite (Western Alps) [PDF]

, 2015
The Late Jurassic Monviso ophiolite in the Western Alps is a multiply deformed, eclogite-facies metaophiolite that represents a remnant of the Alpine Tethyan oceanic lithosphere.
Y. Dilek, G. Balestro, P. Tartarotti, A. Festa   +3 more
core   +1 more source