Results 101 to 110 of about 18,614 (286)

The Earliest Feathers from the Lower Cretaceous Dabeigou Formation of North Hebei: Implications for the Early Evolution of the Jehol Biota

Integrative Zoology, EarlyView.
This study reports two isolated feather fossils from the Lower Cretaceous Dabeigou Formation in northeastern China. Morphological analyses identified them as the earliest known feathered theropods (potentially including avian) in the Jehol Biota. This finding reveals a complex ecosystem at the dawn of the Jehol Biota, bridging the temporal and faunal ...
Qian Wu, Qian‐Nan Zhang, Dang‐Peng Xi   +2 more
wiley   +1 more source

Brittle Structural Control and Fluid Progress of the Jinqingding Gold Deposit: Implications for Epizonal Gold Mineralization

Acta Geologica Sinica - English Edition, EarlyView.
High‐grade orebodies are controlled by stress field with σ1 oriented NE‐SW during the main mineralization stage.Inferred NEE‐trending strike‐slip fault control another orebody distribution. ABSTRACT The Jinqingding gold deposit in eastern Jiaodong is a significant gold mineralization within the Muping–Rushan metallogenic belt.
Xiaohu Wang, Yuke Shen, Changshan Wei, Fengbin Han, Tao Guo, Huisheng Wang, Jiantao Yu, Yubo Song, Bo Wang, Longji Gong, Guijie Li   +10 more
wiley   +1 more source

The Jurassic of Denmark and Greenland: Sequence stratigraphy of the Jurassic of the Danish Central Graben [PDF]

Geological Survey of Denmark and Greenland Bulletin, 2003
A sequence stratigraphic framework is established for the Jurassic of the Danish Central Graben based primarily on petrophysical log data, core sedimentology and biostratigraphic data from about 50 wells.
Andsbjerg, Jan, Dybkjær, Karen
doaj  

Bathymetry Reconstruction of the Late Jurassic Arabian Intra-Shelf Basin

Key Messages: (1) First quantitative paleo-bathymetric reconstruction of the Late Jurassic Arabian intra-shelf basin incorporating platform-scale regional stratigraphic correlation and considering the effect of isostatic adjustment.
Wicaksono, Akbar Nugroho, Vahrenkamp, Volker   +1 more
core   +1 more source

Phylogeny, histology and inferred body size evolution in a new rhabdodontid dinosaur from the Late Cretaceous of Hungary. [PDF]

, 2012
Rhabdodontid ornithopod dinosaurs are characteristic elements of Late Cretaceous European vertebrate faunas and were previously collected from lower Campanian to Maastrichtian continental deposits.
Weishampel, D. B., Edina Prondvai (133973), Weishampel, DB, Ősi, A, Weishampel, David B., Prondvai, Edina; id_orcid, Butler, Richard, Ősi, Attila, Weishampel, David, David B. Weishampel (133978), Richard Butler (133975), Richard Butler, Prondvai, Edina, Butler, R, Attila Ősi, David B Weishampel, Edina Prondvai, Butler, R. J., Prondvai, E, Butler, Richard; id_orcid, Attila Ősi (109378)   +20 more
core   +1 more source

Geochemical Characteristics and Their Geological Significance of Zircon and Apatite From the Wunugetushan Porphyry Cu–Mo Deposit, Inner Mongolia, NE China

Acta Geologica Sinica - English Edition, EarlyView.
The key factors making the monzogranitic porphyry fertile for mineralization, including its high Cl, S, and H2O contents, high oxidation state, significant fluid exsolution, and multiple recharges of deep‐seated mafic magma, were all critical for the formation of the Wunugetushan porphyry Cu‐Mo deposit. ABSTRACT The Wunugetushan (Wushan) porphyry Cu–Mo
Genyuan JI, Sihong Jiang, Yang Cheng, Hongyan Bao, Huachuan Zhang   +4 more
wiley   +1 more source

Neural Networks and Multivariate Analysis Based on Geochemical Data to Determine Stone Provenance From Ancient Calabrian Quarries (Southern Italy)

Archaeometry, EarlyView.
ABSTRACT This study shows an innovative approach to determine the origin of some Calabrian rocks quarried used in ancient times. Twenty‐five quarries, distributed in all the Calabrian provinces (Southern Italy), were studied and sampled. Ten samples were taken from each quarry, for a total of 250 samples.
Domenico Miriello, Stefano Columbu, Raffaella De Luca, Marco Lezzerini, Mirco Taranto, Fabrizio Antonelli   +5 more
wiley   +1 more source

Multivariate and Cladistic Analyses of Isolated Teeth Reveal Sympatry of Theropod Dinosaurs in the Late Jurassic of Northern Germany.

PLoS ONE, 2016
Remains of theropod dinosaurs are very rare in Northern Germany because the area was repeatedly submerged by a shallow epicontinental sea during the Mesozoic.
Oliver Gerke, Oliver Wings
doaj   +1 more source

High-resolution environmental change in the late Jurassic Kimmeridge clay formation

, 2000
Several discrete intervals of the Late Jurassic Kimmeridge Clay Formation were analyzed to assess the high-resolution environmental change, which occurs within laminated lithologies. The material was from new boreholes drilled in Dorset, southern England,
Pearson, S.J.
core  

Temporary expansion to shelf depths rather than an onshore-offshore trend: the shallow-water rise and demise of the modern deep-sea brittle star family Ophiacanthidae (Echinodermata: Ophiuroidea)

, 2013
Hypotheses on the age and possible antiquity of the modern deep-sea fauna put forward to date almost all agree on the assumption that the deep-sea fauna is largely the result of colonisation from shallow-water environments. Here, the fossil record of the
Thuy, Ben, Ben Thuy
core   +1 more source