Results 121 to 130 of about 1,776,549 (292)

Burmese amber fossils bridge the gap in the Cretaceous record of polypod ferns [PDF]

open access: yes, 2016
publisher: Elsevier articletitle: Burmese amber fossils bridge the gap in the Cretaceous record of polypod ferns journaltitle: Perspectives in Plant Ecology, Evolution and Systematics articlelink: http://dx.doi.org/10.1016/j.ppees.2016.01.003 ...
Heinrichs, Jochen   +4 more
core   +1 more source

Replacement of Ores Recorded by Textures and Chemical Compositions of Sphalerite: An Example From the Furutobe Kuroko Deposit, Akita, Japan

open access: yesGeological Journal, EarlyView.
Coupled dissolution‐reprecipitation of early formed Cd‐, Fe‐, Ag‐ and Sb‐poor sphalerite through interaction with high‐temperature and high‐sulphur fugacity Cu‐rich fluids, responsible for the formation of the yellow ores, resulted in the formation of Cd‐, Fe‐, Ag‐ and Sb‐rich, heavily chalcopyrite‐diseased sphalerite and enrichment of critical metals ...
Manuel Nopeia   +4 more
wiley   +1 more source

Late Cretaceous Tectono-Metamorphic Events in the Skyros Upper Metamorphic Unit (Olympus Mountain), Aegean Sea, Greece

open access: yesGeosciences
Late Cretaceous metamorphic events are known in Crete and the Cyclades from klippen above the External Hellenides. This work extends their occurrence to the North Aegean area within the tectonic units of the Internal Hellenides.
Dimitra Boundi   +3 more
doaj   +1 more source

A complete skull of an early cretaceous sauropod and the evolution of advanced titanosaurians.

open access: yesPLoS ONE, 2011
Advanced titanosaurian sauropods, such as nemegtosaurids and saltasaurids, were diverse and one of the most important groups of herbivores in the terrestrial biotas of the Late Cretaceous.
Hussam Zaher   +9 more
doaj   +1 more source

New hadrosaurid remains from the Late Cretaceous of Río Negro Province (Argentina, Late Cretaceous)

open access: yesJournal of Iberian Geology, 2017
Fil: Cruzado Caballero, Penelope. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Conicet - Patagonia Norte.
openaire   +3 more sources

Thermochronologic Constraints on the Extensional History of the Ibex Hills, Southeastern Black Mountains, Death Valley, California

open access: yesGeological Journal, EarlyView.
A. Modeled T‐t paths for samples in the northern Ibex Hills, showing steady cooling throughout much of the Cenozoic, until rapid Miocene cooling. B. Weighted mean paths for each sample in this study. Note that all show a rapid cooling event at or just after 10 Ma, which is interpreted to represent exhumation as a result of regional extenstion ...
Zachariah D. Fleming
wiley   +1 more source

Atmospheric pCO2 compilation for the the Late Cretaceous-Early Paleogene

open access: yes, 2019
Atmospheric pCO2 compilation for the the Late Cretaceous-Early ...
Kroon, Dick   +15 more
core   +1 more source

Multiphase Tectonic Process With Slab Dynamics in the Northern East China Sea Shelf Basin

open access: yesGeological Journal, EarlyView.
Megasequence 1 characterised by Palaeocene extension and differential subsidence driven by the rollback of the subducting Izanagi Plate. Megasequence 2 records a kinematic reorganisation of the East Asian margin, transition from a rifting to a compressional regime.
Juhwan Woo   +3 more
wiley   +1 more source

The magnetostratigraphy of Coniacian-Late Campanian chalk sequences of Southern England

open access: yes, 1994
Results from a detailed palaeomagnetic study of the Late Cretaceous sequences of Culver Cliff and Scratchell's Bay (Isle of Wight) and Seaford Head, East Sussex are presented.
Montgomery, Paul
core   +1 more source

Molecular Palaeontology Prospects From Exceptionally Preserved Eocene Brackish‐Water Bivalve Batissa sitakaraensis (Venerida: Corbiculidae) From Hokkaido, Japan

open access: yesGeological Journal, EarlyView.
This study reports the exceptional preservation of the Eocene freshwater bivalve Batissa sitakaraensis from Hokkaido, Japan. Multimodal analyses reveal that both the aragonitic shell mineralogy and the delicate organic periostracum retain their original structural and chemical characteristics after millions of years.
Taro Yoshimura   +4 more
wiley   +1 more source

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