Results 11 to 20 of about 19,819 (231)

Upper cretaceous magmatic suites of the Timok magmatic complex [PDF]

open access: yesGeološki Anali Balkanskoga Poluostrva, 2010
The Upper Cretaceous Timok Magmatic Complex (TMC) developed on a continental crust composed of different types of Proterozoic to Lower Cretaceous rocks. The TMC consists of the magmatic suites: Timok andesite (AT) - Turonian-Santonian, Metovnica
Banješević Miodrag
doaj   +1 more source

The oldest elasmosaurs (Sauropterygia, Plesiosauria) from Antarctica, Santa Marta Formation (upper Coniacian? Santonian–upper Campanian) and Snow Hill Island Formation (upper Campanian–lower Maastrichtian), James Ross Island [PDF]

open access: yesPolar Research, 2012
Elasmosaurs are recorded for the first time in the Lachman Crags Member (Beta Member) of the Santa Marta Formation (lower Campanian) and in the Herbert Sound Member of the Snow Hill Island Formation (upper Campanian).
José P. O'Gorman
doaj   +1 more source

Large Igneous Province Record Through Time and Implications for Secular Environmental Changes and Geological Time‐Scale Boundaries

open access: yesGeophysical Monograph Series, Page 1-26., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Richard E. Ernst   +8 more
wiley  

+1 more source

Genus Sororistirps (Porifera, Hexactinellida, Ventriculitidae) [PDF]

open access: yesИзвестия Саратовского университета. Новая серия: Серия Науки о Земле
Representatives of the genus Sororistirps, distinguished among the Ventriculites, have been detected in the Santonian – Maastrichtian rocks from the southeast of the Russian Plate.
Pervushov, Evgeniy Mikhaylovich
doaj   +1 more source

CALCAREOUS PLANKTON BIOSTRATIGRAPHY OF THE SANTONIAN-CAMPANIAN BOUNDARY INTERVAL IN THE BOTTACCIONE SECTION (UMBRIA-MARCHE BASIN, CENTRAL ITALY)

open access: yesRivista Italiana di Paleontologia e Stratigrafia, 2020
The Bottaccione section (Umbria-Marche Basin, central Italy) was analyzed for calcareous nannofossil and planktonic foraminiferal biostratigraphy across the Santonian-Campanian boundary interval to achieve a high-resolution and updated zonation directly ...
FRANCESCO MINIATI   +3 more
doaj   +1 more source

Volcanic eruptions from ghost magma chambers [PDF]

open access: yes, 2008
Recent studies have proposed that magma reservoirs crystallized to a virtually rigid crystal-mush can be partially remelted by diffusion of hot fluids. We show that for a crystal mush with the composition of a K-trachyte from the Campanian Ignimbrite (CI)
BATTAGLIA, MAURIZIO   +3 more
core   +1 more source

Cranial anatomy and stratigraphy of a new specimen of the tyrannosaurine dinosaur Daspletosaurus from the Judith River Formation of Central Montana, USA [PDF]

open access: yesActa Palaeontologica Polonica
The tyrannosaurine Daspletosaurus contains three recognized species from the Campanian of Montana and Alberta: Daspletosaurus torosus, Daspletosaurus wilsoni, and Daspletosaurus horneri. The recently named D. wilsoni has been proposed to represent a
ETHAN WARNER-COWGILL   +3 more
doaj   +1 more source

The age of the brachiopod limestones from Guča, western Serbia [PDF]

open access: yesGeološki Anali Balkanskoga Poluostrva, 2010
The asymmetric rhynchonellide brachiopod Cyclothyris? globata (ARNAUD, 1877) has a large distribution in the Coniacian, Santonian and Campanian outcrops of the western Tethys.
Radoičić Rajka   +3 more
doaj   +1 more source

Upper Cretaceous, K/T boundary, and Paleocene agglutinated foraminifers from Hole 959D (Côte d'Ivoire-Ghana Transform Margin) [PDF]

open access: yes, 1998
Upper Cretaceous agglutinated foraminifer assemblages from Hole 959D of Ocean Drilling Program (ODP) Leg 159, Côte d’Ivoire-Ghana Transform Margin, reflect the subsidence history and paleoceanography of the widening equatorial Atlantic gateway.
Kaminski, M.A., Kuhnt, W., Moullade, M.
core   +1 more source

Integrated fluid inclusion studies and source rock parameters in constraining hydrocarbon potential in offshore Lamu Basin, Kenya

open access: yesEnergy Geoscience, 2023
Fluid inclusion signal strength and visual inclusion abundance are generally lower along migration pathways than in charged reservoirs from the same area.
G.A. Osukuku   +4 more
doaj   +1 more source

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