Results 61 to 70 of about 12,814 (219)

STABLE CARBON AND OXYGEN ISOTOPES OF SOME CARBONATE-FLUORAPATITES FROM CENOMANIAN AND TURONIAN SEQUENCES, BOHEMIAN CRETACEOUS BASIN, CZECH REPUBLIC

open access: yesIraqi Geological Journal, 2018
Stable carbon and oxygen isotopes were analysed in the structural CO3 of carbonate-fluorapatite in phosphate nodules and coprolites present in distinctive horizons at the Cenomanian – Turonian boundary and in late Turonian sequence at the ...
Khaldoun S. Al-Bassam
doaj   +1 more source

Latitudinal differences in the amplitude of the OAE-2 carbon isotopic excursion : pCO2 and paleo productivity [PDF]

open access: yes, 2012
A complete, well-preserved record of the Cenomanian/Turonian (C/T) Oceanic Anoxic Event 2 (OAE-2) was recovered from Demerara Rise in the southern North Atlantic Ocean (ODP site 1260).
Bentum, Elisabeth C. van   +3 more
core   +2 more sources

Mid-Turonian ammonite faunas from northern Mexico

open access: yesGeological Magazine, 1988
AbstractTuronian ammonite assemblages are described from six localities in the Ojinaga and Boquillas formations of Chihuahua in northern Mexico. These assemblages reveal the presence of the middle Turonian zones of Collignoniceras woollgari and Prionocyclus hyatti far to the south of previously documented occurrences. The Mexican collections include co-
Kennedy, W, Cobban, W
openaire   +2 more sources

Mid-Cretaceous acanthomorph fishes with the description of a new species from the Turonian of Lac des Bois, Northwest Territories, Canada

open access: yesVertebrate Anatomy, Morphology, Palaeontology, 2016
A single specimen of a new acanthomorph fish is described from a Turonian locality sampling the northern part of the Cretaceous Western Interior Seaway.
Alison M Murray
doaj   +3 more sources

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

An emendation of some Cretaceous species of "Reophax" (Foraminiferida) from northwest Europe and Poland [PDF]

open access: yes, 1995
The classification of some deep-water agglutinated foraminifera identified as Reophax minuta Tappan, 1940 is revised based upon examination of type material.
Geroch, S., Kaminski, M.A.
core  

Marine tethysuchian crocodyliform from the ?Aptian-Albian (Lower Cretaceous) of the Isle of Wight, UK [PDF]

open access: yes, 2014
A marine tethysuchian crocodyliform from the Isle of Wight, most likely from the Upper Greensand Formation (upper Albian, Lower Cretaceous), is described.
Foffa, D   +5 more
core   +1 more source

An Abelisauroid Theropod Dinosaur from the Turonian of Madagascar

open access: yesPLoS ONE, 2013
Geophysical evidence strongly supports the complete isolation of India and Madagascar (Indo-Madagascar) by ∼100 million years ago, though sparse terrestrial fossil records from these regions prior to ∼70 million years ago have limited insights into their biogeographic history during the Cretaceous.
Andrew A Farke, Joseph J W Sertich
openaire   +4 more sources

Biogeochemical effects of volcanic degassing on the oxygen-state of the oceans during the Cenomanian/Turonian Anoxic Event 2 [PDF]

open access: yes, 2011
FINAL ID: PP11A-1769 Cretaceous anoxic events may have been triggered by massive volcanic CO2 degassing as large igneous provinces (LIPs) were emplaced on the seafloor.
Floegel, Sascha   +6 more
core  

Depositional environment and source rock potential of Cenomanian and Turonian sedimentary rocks of the Tarfaya Basin, Southwest Morocco [PDF]

open access: yes, 2014
Detailed organic and inorganic geochemical analyses were used to assess the depositional environment and source rock potential of the Cenomanian and Turonian oil shale deposits in the Tarfaya Basin.
Ghassal, B.I.   +4 more
core   +2 more sources

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