Results 31 to 40 of about 9,629 (227)

Micropalaeontology, biostratigraphy, and depositional setting of the mid-Cretaceous Derdere Formation at Derik, Mardin, south-eastern Turkey [PDF]

open access: yesJournal of Micropalaeontology, 2020
The micropalaeontology of the mid-Cretaceous Derdere Formation (Mardin Group) from outcrops close to the town of Derik in south-eastern Turkey is described here.
M. D. Simmons   +6 more
doaj   +1 more source

Foraminiferal Assemblages in the Cenomanian of the Buzet-Savudrija Area (Northwestern Istria, Croatia)

open access: yesGeologia Croatica, 2010
In the Cenomanian shallow-water carbonates of Northwestern Istria five biostratigraphic zones have been established:CEN-1 Ovalveolina maccagnoae and Sellialveolina viallii biozone in the early Lower Cenomanian;CEN-2 O.
Ivo Velić, Igor Vlahović
doaj   +1 more source

Taxonomy of Platypterygius campylodon and the diversity of the last ichthyosaurs [PDF]

open access: yesPeerJ, 2016
A complex and confusing taxonomy has concealed the diversity dynamics of Cretaceous ichthyosaurs (Reptilia) for decades. The near totality of Albian-Cenomanian remains from Eurasia has been assigned, by default, to the loosely defined entity ...
Valentin Fischer
doaj   +2 more sources

Comparison of the Porosity Parameter in Sediments Obtained Using Traditional and Precision Methods (Cenomanian Deposits in Western Siberia, Russia)

open access: yesQubahan Academic Journal, 2023
The study focuses on porosity, an important parameter for calculating reserves. Traditionally, weight-based methods are used in calculation, which implies a simple approach to estimating hydrocarbon reserves.
Vitaliya Naumenko   +2 more
doaj   +1 more source

The Cenomanian stage

open access: yes, 2016
Following discussions at the Second International Symposium on Cretaceous Stage Boundaries, held in Brussels, 8-16 September 1995, the Cenomanian Working Group, identified as marker for the base of the Cenomanian the first occurrence of the planktonic foraminiferan Rotalipora globotruncanoides. As GSSP (Global Boundary Stratotype Section and Point) for
Tröger, K   +5 more
openaire   +2 more sources

LE RELAZIONI TRA LE ARENARIE DI SARNICO (CONIACIANO) E LE UNITA' CENOMANIANO-TURONIANE NELL'AREA DI CAPRIOLO - CORNO PENDITA (BS) (BACINO LOMBARDO, ALPI MERIDIONALI)

open access: yesRivista Italiana di Paleontologia e Stratigrafia, 2017
The Cenomanian-Coniacian units of the Capriolo - Corno Pendita area belong to the eastern margin of the Lombardy Basin. The Coniacian turbidite sandstone lithosome (Arenarie di Sarnico) unconformably overlies the Cenomanian-Turonian units.
R. BERSEZIO, L. MENSINI
doaj   +1 more source

On the Cretaceous mangroves of Bahariya Oasis, Egypt [PDF]

open access: yesTaeckholmia, 2016
Petrified stems (rhizomes) of a fern are described from Late Cretaceous (Cenomanian)beds in Bahariya Oasis. The discovered stems are related to Paradoxopteris stromeriHirmer (fern rachii) and to Weichselia reticulata Stokes & Webb.
Marwah Kamal-El-Din   +4 more
doaj   +1 more source

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

Larger Foraminifera of Middle and Late Cenomanian (Biostrome Association), Southern Iraq

open access: yesIraqi Geological Journal, 2023
Searching one of the most important reservoirs of the Cretaceous in Iraq is the aim of many researchers. The studied sequences are in the Mishrif Formation in southern Iraq. The goal is to define fauna and design biostratigraphic zoning.
Abdelwahhab Al-Salihi, Yasamin Ibrahim
doaj   +1 more source

Cenomanian-Turonian benthic foraminifera of the Kerguelen Plateau

open access: yes, 2002
Recent drilling on the Kerguelen Plateau (Ocean Drilling Program Leg 183) has provided a unique and exciting high latitude record of palaeoceanographic change during the Cenomanian–Turonian in the Southern Ocean.
Wolfgang Kuhnt (5689733)   +3 more
core   +1 more source

Home - About - Disclaimer - Privacy