Results 11 to 20 of about 5,829 (169)

Stripping back the modern to reveal the Cenomanian–Turonian climate and temperature gradient underneath [PDF]

open access: yesClimate of the Past, 2020
During past geological times, the Earth experienced several intervals of global warmth, but their driving factors remain equivocal. A careful appraisal of the main processes controlling past warm events is essential to inform future climates and ...
M. Laugié   +6 more
doaj   +1 more source

Study of main planktonic foraminifera(Turonian-Santonian) in Kopeh-Dagh sedimentary environment, NE Iran [PDF]

open access: yesSustainable Earth Trends, 2021
In order to study the fossil contents of the Abderaz Formation for biostratigraphical purposes the 500 meters thick section was sampled at type section.
Meysam Shafiee Ardestani   +1 more
doaj   +1 more source

BIOSTRATIGRAPHY AND DEPOSITIONAL ENVIRONMENT OF THE OIL SHALE DEPOSIT IN THE ABAKALIKI FOLD BELT, SOUTHEASTERN NIGERIA; pp. 99–125 [PDF]

open access: yesOil Shale, 2010
The oil shale deposit in the Abakaliki anticlinorium has not been demarcated. The present study focused on the age, correlation and depositional environ­ment of the oil shale using abundance, planktonic/benthonic ratio and species diversity of ...
O. A. EHINOLA
doaj   +1 more source

High-resolution calcareous nannofossil biostratigraphy and facies of Nimar Sandstone Formation (Bagh Group), central India and its bearing on Oceanic Anoxic Event 2

open access: yesJournal of the Palaeontological Society of India, 2023
It is proposed to consider Narmada Valley Late Cretaceous sequences in three sectors with proper selection of stratotype in each sector: Eastern Sector: comprising of Lameta group of rocks with type area in Jabalpur area, essentially laid down in ...
Syed A. Jafar
doaj   +1 more source

Fine-grained interplanetary dust input during the Turonian (Late Cretaceous): evidence from osmium isotope and platinum group elements

open access: yesScientific Reports, 2023
The Turonian age (~ 90–94 Ma) was the hottest geological interval in the Cretaceous and also marked by the K3 event, a pronounced enrichment of 3He in pelagic sediments (i.e., massive input of extraterrestrial materials).
Hironao Matsumoto   +4 more
doaj   +1 more source

Turonian-coniacian definition of the Caribbean plate: tectonic and metamorphic record in the Median Belt, Dominican Republic

open access: yes, 2023
Uplift and unroofing of Jurassic-Cretaceous, mantle and crust, arc- and plume-related rock units in the Median Belt of the Dominican Republic exposed basement rocks with a protracted record of tectono-thermal events delineating the evolution of the ...
Manuel Jesús Román-Alpiste (14348669)   +5 more
core   +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).
Sinninghe Damsté, Jaap S.   +11 more
core   +2 more sources

Bio- and isotope stratigraphy of the Cenomanian-Turonian transition and the variations related to OAE2 in the Holul section, west of Kermanshah [PDF]

open access: yesJournal of Stratigraphy and Sedimentology Researches, 2017
Micropalaeontological study based on planktonic foraminifera in the Cenomanian - Turonian succession of the Holul section, located in the Lurestan geological province (west of the Kermanshah City), resulted in distinction of Rotalipora cushmani ...
Mehdi Sarfi   +3 more
doaj   +1 more source

The Turonian-Coniacian deposits of the south-west of the Ulyanovsk-Saratov trough

open access: yesИзвестия высших учебных заведений: Геология и разведка, 2019
Integrated study of a series of the Turonian and Coniacian complete geological records has revealed the stratigraphic completeness and specified the faunal contents of the deposits.
E. M. Pervushov   +4 more
doaj   +1 more source

Turonian-Santonian echinoids from Egypt [PDF]

open access: yesGeodiversitas, 2012
ABSTRACT Thirty echinoid species (18 regular and 12 irregular) and an undetermined species belonging to 14 genera are studied from the Turonian-Santonian sequence (14 species from Turonian, two species from Turonian-Santonian and 14 species from Coniacian-Santonian) of Abu Roash, Wadi Dakhl and Wadi Abu Qaada, Egypt.
Mohamed Abdelhamid, Marouf Abdel-Aty   +1 more
openaire   +1 more source

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