Results 151 to 160 of about 1,482,759 (284)

Contourite erosional and depositional features of the Maastrichtian chalk on Jasmund peninsula (Rügen island, NE Germany)

Sedimentology, EarlyView.
ABSTRACT Seismic‐scale features such as deeply incised submarine valleys and mounded drifts together with ichnological features indicative of discontinuous sedimentation and erosional episodes have recently been documented from the Upper Cretaceous chalk in the southern Baltic Sea area.
Marcel Schlembach, Heiko Hüneke, Mike Reich, Svante Peters, Nele Ahlhaus, Sylvia Weinert, Arwed Gibb   +6 more
wiley   +1 more source

Dinosaur trackways from the Upper Cretaceous Nichkesai Formation near Mayluu Suu City, Southern Tien Shan Mountains, north-western Kyrgyzstan. [PDF]

R Soc Open Sci, 2023
Flannery-Sutherland JT, Kogan I, Trubin YS, Falkingham PL, Winkler A, De Sousa DD, Krylov KD, Pokhaznikova AA, Derbisheva M, Kapitany T, Dudashvili A.   +10 more
europepmc   +1 more source

American Upper Cretaceous Echinoidea [PDF]

Professional Paper, 1953
openaire   +1 more source

Rethinking microtidal systems: Tidal signatures in the fluvial deposits of the Po River, Italy

Sedimentology, EarlyView.
ABSTRACT In microtidally influenced rivers, tides are generally assumed to leave virtually no signatures in the sedimentary record. However, this hypothesis has been surprisingly poorly tested using modern river analogues, which provide an opportunity to assess whether sedimentary signatures of microtidal regimes can develop in rivers that lack ...
Anna E. van Yperen, Alvise Finotello, Riccardo Maitan, Ivar Midtkandal, Fabrizio Nestola, Davide Tognin, Massimiliano Ghinassi   +6 more
wiley   +1 more source

The extinct shark, <i>Ptychodus</i> (Elasmobranchii, Ptychodontidae) in the Upper Cretaceous of central-western Russia-The road to easternmost peri-Tethyan seas. [PDF]

J Vertebr Paleontol, 2023
Amadori M, Solonin SV, Vodorezov AV, Shell R, Niedźwiedzki R, Kriwet J.   +5 more
europepmc   +1 more source

Coupled plagioclase dissolution and K‐feldspar overgrowth precipitation preserve anomalously high permeability in deeply buried sandstones

Sedimentology, EarlyView.
ABSTRACT This study investigated the formation mechanism responsible for anomalously high permeability (AHP) observed in the Eocene sandstones at depths from 3824 to 3832 m in the Huizhou Sag, Pearl River Mouth Basin, China, using helium porosity and permeability measurements, thin section, scanning electron microscopy, electron probe X‐ray ...
Changgui Xu, Huan Li, Wei Wang, Yangdong Gao, Guangrong Peng, Lin Ding, Eric O. Ansah, Pei Liu, Xiaoyan Li, Saju Menacherry, Hongtao Zhu, Xianghua Yang, Zhiwei Zeng   +12 more
wiley   +1 more source

First dercetid fish from the Upper Cretaceous of Antarctica. [PDF]

Sci Rep
Gallo V, de Figueiredo FJ, Brum AS, Soares MB, Sayão JM, Pinheiro AEP, Figueiredo RG, Lopes RT, de Araújo OMO, Kellner AWA.   +9 more
europepmc   +1 more source

Evidence for a mixed-age group in a pterosaur footprint assemblage from the early Upper Cretaceous of Korea. [PDF]

Sci Rep, 2022
Jung J, Huh M, Unwin DM, Smyth RSH, Hwang KG, Kim HJ, Choi BD, Xing L.   +7 more
europepmc   +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

Morphology and articular configuration of the ceratopsid (Dinosauria: Ornithischia) lower hindlimb as revealed by a specimen from the Upper Cretaceous Dinosaur Park Formation of southern Alberta, Canada. [PDF]

PLoS One
Theurer B, Tanke DH, Bastiaans D, Nguyen K, Currie P, Sullivan C.   +5 more
europepmc   +1 more source