U-Pb Zircon Geochronology of Detrital and Ash Fall Deposits of the Southern Paraná Basin: A Contribution for Provenance, Tectonic Evolution, and the Paleogeography of the SW Gondwana [PDF]
Zircon U-Pb geochronology was applied to investigate the provenance, depositional ages, and paleogeography of the southwestern Gondwana in detrital and ash fall sediments from Carboniferous to Jurassic succession of the southern Paraná Basin.
Ruy Paulo Philipp +10 more
doaj +2 more sources
Marcasite at the Permian‐Triassic Transition
Exploring the links between Large Igneous Provinces and dramatic environmental impact
An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Elena Lounejeva +7 more
wiley +8 more sources
Early land plant remains from the uppermost Ordovician–?lowermost Silurian Cedarberg Formation of South Africa [PDF]
The Cape Supergroup forms a regionally extensive and extremely thick Ordovician to Carboniferous succession of sedimentary rocks in southwestern South Africa.
Charles H. Wellman +2 more
doaj +1 more source
Synthesis and Photoluminescence characterization of Sr3La(AlO)3(BO3)4:Eu3+,Sm3+ Phosphor for W-LED
A Red emitting with high efficiency Eu3+ doped Sr3La(AlO)3(BO3)4 and Sm3+ doped Sr3La(AlO)3(BO3)4 phosphors has been synthesized by combustion method, meanwhile, the photoluminescence properties of samples are investigated in detail.
R.M. Yerojwar +3 more
doaj +1 more source
Burmese amber is a significant source of fossils that documents the mid-Cretaceous biota. This deposit was formed around 99 Ma on the Burma Terrane, which broke away from Gondwana and later collided with Asia, although the timing is disputed ...
Hannah M. Wood, J. Wunderlich
semanticscholar +1 more source
Initiation of Mariana-type oceanic subduction zones requires rheologically strong oceanic lithosphere, which developed through secular cooling of Earth’s mantle.
Jinlong Yao +6 more
semanticscholar +1 more source
Ancient cratonic nuclei in East Antarctica: Research status, problems and prospects
The Archean cratonic nuclei in the East Antarctic Shield (Craton) occur mainly in the Napier Mountains, southern Prince Charles Mountains, Rauer Group and Vestfold Hills in the Indian Ocean sector, and are sporadically exposed in the Australian, African ...
LIU Xiaochun +7 more
doaj +1 more source
A new Late Triassic dipteridacean fern from the Paso Flores Formation, Neuquén Basin, Argentina [PDF]
Sterile and fertile fronds of dipteridacean ferns from the Paso Flores Formation (late Norian–Rhaetian) at Cañadón de Pancho area, south of the Neuquén Province, Patagonia (Neuquén Basin), Argentina, are described.
SILVIA CRISTINA GNAEDINGER +1 more
doaj +1 more source
First record of a Late Jurassic rhamphorhynchine pterosaur from Gondwana [PDF]
We describe partial remains of a non-pterodactyloid pterosaur from Upper Jurassic levels of the Atacama Desert in northern Chile. The material includes a left humerus, a possible dorsal vertebra, and the shaft of a wing phalanx, all preserved in three ...
Jhonatan Alarcón-Muñoz +5 more
doaj +1 more source
Constraining the positions of, and interrelationships between, Earth’s major continental blocks has played a major role in validating the concept of the supercontinent cycle.
Peng Wang +7 more
semanticscholar +1 more source

