Results 81 to 90 of about 5,138,357 (259)

Lower Triassic bryozoan beds from Ellesmere Island, High Arctic, Canada [PDF]

, 2008
In the Sverdrup Basin (Canadian Arctic), the Lower Triassic Blind Fiord Formation, comprising siltstone and shale, overlies various Middle to Late Permian (post-Wordian) sedimentary units.
Embry, A.F., Beauchamp, Benoit, Baud, Aymon, Nakrem, H.A., Beatty, T.W., Embry, Ashton F., Baud, A., Henderson, C.M., Beauchamp, B., Nakrem, Hans Arne, Henderson, Charles M., Beatty, Tyler W.   +11 more
core   +1 more source

Geochemistry and Geochronology of Magmatic Rocks in Southwestern and Northeastern Cambodia: Implications for the Tectonic Evolution and Metallogenesis of the Loei Fold Belt

Geological Journal, EarlyView.
The composition of intrusive rocks suggests that the magma was likely generated in a subduction‐related setting. The arc crustal thickness in the Phnom Sro Ngam and Halo Prospects was probably < 40 km during emplacement. Zircon U–Pb age range indicates a correlation with Loei Fold Belt magmatic activity.
Sirisokha Seang, Khin Zaw, Kakda Kret, Ivan Belousov, Kotaro Yonezu, Koichiro Watanabe, Charles Makoundi   +6 more
wiley   +1 more source

The Strandja Massif and the İstanbul Zone were once parts of the same palaeotectonic unit: new data from Triassic detrital zircons

Geodinamica Acta, 2018
Spatially continuous rock assemblages that share similar environmental evolution or structural features can be classified as a single tectonic unit. This approach enables to link dispersed units or massifs with each other and sometimes can be subjective,
Semih Can Ülgen, Nalan Lom, Gürsel Sunal, Axel Gerdes, Ali Mehmet Celâl Şengör   +4 more
doaj   +1 more source

Ammonoids of the Late Scythian (Lower Triassic)

, 1969
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire   +2 more sources

Late Pleistocene Volcanic Rocks From Tengchong Volcanic Field at SE Tibetan Plateau: Constraints on Petrogenesis and Mantle and Crustal Processes

Geological Journal, EarlyView.
Early zircon saturation and crystallisation occur in mafic (52–54 wt.% SiO2) lavas at Tengchong volcanic field. These early formed zircons with high δ18O (6.6‰–7.9‰) indicates mantle enrichment by subducted supracrustal materials. ABSTRACT Late Pleistocene (< 0.2 Ma) mafic and evolved volcanic rocks occur in northern Tengchong Volcanic Field, SE ...
Lizhu Wang, Haibo Zou
wiley   +1 more source

Prediction of oil and gas occurrence in the Vilyui hemisineclise according to interpretation of geological and geophysical data and basin modeling (Republic of Sakha (Yakutia))

Georesursy
The paper is aimed at the prediction of oil and gas occurrence of the Upper Permian, Lower Triassic and Lower Jurassic deposits in the Vilyui hemisineclise.
M. O. Fedorovich, A. Yu. Kosmacheva
doaj   +1 more source

Rapid neck elongation in Sauropterygia (Reptilia: Diapsida) revealed by a new basal pachypleurosaur from the Lower Triassic of China. [PDF]

BMC Ecol Evol, 2023
Liu QL, Cheng L, Stubbs TL, Moon BC, Benton MJ, Yan CB, Tian L.   +6 more
europepmc   +1 more source

Revision of the Lower Triassic Tetrapod Ichnofauna from Wiory, Holy Cross Mountains, Poland

, 2012
Lower Triassic, Ichnofauna, Holy Cross Mountains ...
Hedrik Klein and Grzegorz Niedzwiedzki
core  

Tectono‐Sedimentary Evolution of the Neogene İnegöl Basin (NW Anatolia): Constraints on Transtensional Basin Development at the Junction of the Western Anatolian Extensional Province and the North Anatolian Fault Zone

Geological Journal, EarlyView.
The study outlines the tectono‐sedimentary evolution of the İnegöl Basin in north‐western Anatolia. Basin formation was controlled by interacting extensional and strike‐slip fault systems linked to uplift of the Uludağ Massif. Terrestrial sedimentation from the Miocene to Pleistocene is reconstructed using abundant fossil mammal assemblages that ...
M. Cihat Alçiçek, Volkan Karabacak, Serdar Mayda   +2 more
wiley   +1 more source

Morphological and biomechanical disparity of crocodile-line archosaurs following the end-Triassic extinction [PDF]

, 2013
Mesozoic crurotarsans exhibited diverse morphologies and feeding modes, representing considerable ecological diversity, yet macroevolutionary patterns remain unexplored.
Anderson, Philip S. L., Anderson, P S L, Rayfield, Emily J, Pierce, S E, Rayfield, E J, Stubbs, Thomas L, Pierce, Stephanie, E., Stubbs, T L   +7 more
core   +1 more source