Results 191 to 200 of about 75,447 (292)

Diversity of late cretaceous dinosaurs from Mexico

, 2015
Ángel Alejandro Ramírez-Velasco, René Hernández-Rivera   +1 more
openalex   +2 more sources

P‐T‐t‐d Evolution of Low‐Grade Metamorphic Xenotime, Eastern Alps (Austria)

Terra Nova, EarlyView.
ABSTRACT In situ LA‐ICP‐MS U‐Pb dating of xenotime was used to establish the age of low‐grade metamorphism in Permian metasediments of the Austroalpine Unit (Eastern Alps, Austria). Complexly zoned xenotime in chloritoid‐bearing metasedimentary samples possesses distinct MREE‐rich domains. In the eastern sample, this domain yielded a date of c. 135 Ma,
M. S. Hollinetz, B. Huet, C. R. M. McFarlane, D. A. Schneider, B. Grasemann   +4 more
wiley   +1 more source

Long‐Term Storage of Meteoric Water in the Variscan Basement: Stable Isotope Constraints (δD–δ18O)

Terra Nova, EarlyView.
ABSTRACT F‐Ba‐Pb‐Zn (±Ag) deposits near the unconformity between the Armorican and Aquitaine basins formed by mixing surface waters and brines with fluid ascending from the basement. To better constrain the source of this fluid and the conditions of mixing, we analyzed the hydrogen (δDwater) and oxygen (δ18Owater) isotopic composition of water trapped ...
Loïc Bouat, Pierre Strzerzynski, Véronique Gardien   +2 more
wiley   +1 more source

Quantitative Analysis of the Formation and Evolution of Underpressure in Tight Sandstone Reservoirs in the Craton Basin: The Chang 7 Member in the A Area of the Ordos Basin. [PDF]

ACS Omega
Zhang F, Sun Y, Zhong H, Liu S, Xu W, Li Y.   +5 more
europepmc   +1 more source

3D Quantification of Subsidence During Pyrenean Retro‐Wedge Initiation: Role of Structural and Thermal Inheritance on Hyperextended Margin Inversion (Aquitaine Basin)

Terra Nova, EarlyView.
ABSTRACT We present novel 3D subsidence data enabling vertical movements' quantification during the early formation of the Pyrenean retro‐wedge. From Cenomanian to Turonian times, subsidence is relatively low (~26 ± 10 m/Myr), corresponding to a brief 10 Myr thermal re‐equilibration of the European lithosphere following the hyperextended rift episode ...
Benoit Issautier, Nicolas Saspiturry, Paul Angrand, Eric Lasseur, Simon Andrieu, Cécile Robin   +5 more
wiley   +1 more source

Early gigantic lamniform marks the onset of mega-body size in modern shark evolution. [PDF]

Commun Biol
Bazzi M, Siversson M, Wintner S, Newbrey M, Payne JL, Campione NE, Roberts AJ, Natanson LJ, Hall S, Blake T, Kear BP.   +10 more
europepmc   +1 more source

High-resolution U-Pb Geochronology of Terrestrial Cretaceous-Paleogene and Permo-Triassic Boundary Sequences in North America

, 2014
William S. Mitchell
openalex   +1 more source

New Ophthalmosaurid Ichthyosaurs from the European Lower Cretaceous Demonstrate Extensive Ichthyosaur Survival across the Jurassic–Cretaceous Boundary

, 2012
Valentin Fischer, Michael W. Maisch, Darren Naish, Ralf Kosma, Jeff Liston, Ulrich Joger, Fritz J. Krüger, Judith Pardo Pérez, Jessica Tainsh, Robert M. Appleby   +9 more
openalex   +2 more sources

Evaluating Bayesian Morphological Clocks for Estimating a Dated Phylogeny in a Relict and Fossil‐Rich Family of Wasps (Hymenoptera, Chrysidoidea)

Zoologica Scripta, EarlyView.
ABSTRACT In recent years, a wide array of tools originally developed for molecular dating analyses has been adapted for use within a morphological clock perspective. This is of paramount relevance for taxonomic groups that cannot be sampled in forms suitable for DNA extraction.
Anderson Lepeco, Gabriel A. R. Melo, Brunno B. Rosa   +2 more
wiley   +1 more source

Deciphering aeromagnetic data for sustainable sedimentary and structural insights in Obudu Plateau, Ikom Mamfe embayment and Oban Massif, southeastern Nigeria. [PDF]

Sci Rep
Eze OE, Ekwok SE, Thompson CE, Odey EI, Okiwelu AA, Abdelrahman K, Fnais MS, Andráš P, Eldosouky AM.   +8 more
europepmc   +1 more source