Results 101 to 110 of about 40,268 (264)

Mercury anomalies associated with three extinction events (Capitanian Crisis, Latest Permian Extinction and the Smithian/Spathian Extinction) in NW Pangea [PDF]

, 2015
Copyright © Cambridge University Press 2015. Strata of Permian - Early Triassic age that include a record of three major extinction events (Capitanian Crisis, Latest Permian Extinction and the Smithian/Spathian Extinction) were examined at the Festningen
Beauchamp, Benoit, Bond, David P.G., Grasby, Stephen E., Sanei, Hamed, Wignall, Paul B.   +4 more
core   +1 more source

Variations in downslope activity and bottom current dynamics in a land‐detached submarine channel system since the Last Glacial Maximum

Sedimentology, EarlyView.
ABSTRACT The Gollum Channel System is a land‐detached large‐scale canyon‐channel system situated offshore southwest Ireland on the Northeast Atlantic margin. The system has been considered inactive with downslope gravity flows since the last glacial period, but geophysical data in some of its branches do suggest Holocene activity.
Lotte Verweirder, Aggeliki Georgiopoulou, Kobus Langedock, Fred Fourie, Martin White, Sara Benetti, Fabio Sacchetti, Wieter Boone, David Van Rooij   +8 more
wiley   +1 more source

Was the Lhasa Block at Low Latitudes in the Middle Permian? Insights From New Paleomagnetic and Geochronological Data

Geophysical Research Letters
The absence of reliable paleomagnetic constraints from the Lhasa Block has led to alternative interpretations of its late Paleozoic position and timing of rifting from Gondwana, reflecting uncertainties in early Neo‐Tethyan paleogeography.
Longyun Xing, Xin Cheng, Mathew Domeier, Bitian Wei, Zhongshan Shen, Nan Jiang, Jiahui Zhang, Qinglong Chen, Shuqi Lan, Dongmeng Zhang, Yanan Zhou, Chenglong Deng, Hanning Wu   +12 more
doaj   +1 more source

Episodic hydrothermal alteration on Middle Permian carbonate reservoirs and its geological significance in southwestern Sichuan Basin, SW China

Petroleum Exploration and Development
To analyze the episodic alteration of Middle Permian carbonate reservoirs by complex hydrothermal fluid in southwestern Sichuan Basin, petrology, geochemistry, fluid inclusion and U-Pb dating researches are conducted.
Mingyou FENG, Junxin SHANG, Anjiang SHEN, Long WEN, Xingzhi WANG, Liang XU, Feng LIANG, Xiaohong LIU   +7 more
doaj   +1 more source

DAGMARITA SHHREZAENSIS N. SP. GLOBIVALVULINID FORAMINIFER, (WUCHIAPINGIAN, LATE PERMIAN, CENTRAL IRAN)

Rivista Italiana di Paleontologia e Stratigrafia, 2003
In the course of an investigation on the major mass extintion event near the P/T boundary, in the vicinity of Shahreza (South Isfahan) in Iran, a stratigraphically significant new species of foraminifera (Dagmarita shahreaensis n.
PARVIN MOHTAT-AGHAI, DANIEL VACHARD
doaj   +1 more source

The Permo-Carbonigferous Facies Development in Thailand: A plate tectonic discussion [PDF]

, 1989
The Permo-Carboniferous sedimentary facies development in Thailand reflects the late Variscan orogeny in S E Asia. During the Carboniferous and Permian, a N -S trending trough separated the " S h a n Thai Craton" and the "Indosinia Craton".
Altermann, Wladyslaw
core   +1 more source

Middle Permian conodonts from Oman

, 2001
This paper is to report the joint occurrence of Mesogondolella aserrata, the conodont index species of the Wordian Stage, and Mesogondolella siciliensis in ammonoid-bearing Wordian rocks of the Rustaq and Wadi Wasit sections, Oman.
Kozur, Hans, Wardlaw, Bruce, Baud, Aymon, Béchennec, François, Marcoux, Jean, Richoz, Sylvain   +5 more
openaire   +1 more source

The making of pure quartzose sand in continental interiors: Paraná River (Brazil and Argentina)

Sedimentology, EarlyView.
ABSTRACT As part of a comprehensive project on sedimentary processes in South America, this study focuses on sediment generation in the intracratonic Paraná Basin and monitors the evolution of sand composition along the Paraná River from central Brazil to the Río de la Plata estuary in Argentina.
Eduardo Garzanti, Marta Barbarano, Mara Limonta, Guido Pastore, Pieter Vermeesch, Giovanni Vezzoli   +5 more
wiley   +1 more source

Alteration effects of karstification and hydrothermalism on middle Permian Qixia formation at the Wulong section, South China. [PDF]

Sci Rep, 2023
Shang J, Feng M, Wang X, Zhang B, Xu L, Liu X.   +5 more
europepmc   +1 more source

Large igneous provinces and mass extinctions: an update [PDF]

, 2014
The temporal link between mass extinctions and large igneous provinces is well known. Here, we examine this link by focusing on the potential climatic effects of large igneous province eruptions during several extinction crises that show the best ...
Bond, David P. G., Wignall, Paul B.
core   +1 more source