Results 21 to 30 of about 1,589 (212)

Paleoenvironment of the Cerro Negro Formation (Aptian, Early Cretaceous) of Snow Island, Antarctic Peninsula

Anais da Academia Brasileira de Ciências, 2022
A study of macro and microfacies, palynoflora and palynofacies of the non-marine Cerro Negro Formation at President Head Peninsula, Snow Island, northwest of the Antarctic Peninsula, was developed. Two assemblages were recognized: Palynofacies assemblage
ALESSANDRA SANTOS, ENELISE KATIA PIOVESAN, JULIANA GUZMÁN, CRISTIAN D. USMA, LUIZ CARLOS WEINSCHÜTZ, RADARANY JASMINE M. DOS SANTOS, GUSTAVO R. OLIVEIRA, RODRIGO G. FIGUEIREDO, JOÃO HENRIQUE Z. RICETTI, EVERTON WILNER, JULIANA M. SAYÃO, ALEXANDER W.A. KELLNER   +11 more
doaj   +1 more source

A new stratigraphic framework for the Miocene – Lower Pliocene deposits offshore Scandinavia: A multiscale approach

Geological Journal, Volume 56, Issue 3, Page 1699-1725, March 2021., 2021
A multiscale stratigraphic framework (combined dinocyst stratigraphy, sequence stratigraphy, and seismic stratigraphy) for the Neogene succession in the Danish North Sea area is presented. Based on this framework, an updated stratigraphic subdivision of the more fragmentary Neogene succession in the well 6407/9‐5 (Norwegian Sea shelf), proposed as the ...
Karen Dybkjær, Erik Skovbjerg Rasmussen, Tor Eidvin, Kari Grøsfjeld, Fridtjof Riis, Stefan Piasecki, Kasia K. Śliwińska   +6 more
wiley   +1 more source

Detrital input quantification in lacustrine petroleum systems: An example of the pre‐salt source rocks from the Lower Congo Basin (Congo)

The Depositional Record, Volume 7, Issue 1, Page 147-171, February 2021., 2021
The aim of this study was to propose an integrated workflow to quantify detrital input into autochthonous lacustrine deposits in terms of regional extent and total organic carbon (TOC) content. This workflow includes (a) organic geochemical data such as Rock Eval data together with quantitative palynofacies assessment and (b) palaeogeographical maps ...
Françoise Behar, Vincent Delhaye‐Prat, Sylvain Garel   +2 more
wiley   +1 more source

Palynostratigraphy, Palynofacies, T-R Cycles and Paleoenvironments in the Middle Jurassic–Early Cretaceous Ramså Basin, Andøya, Northern Norway

Geosciences, 2021
Palynostratigraphy and palynofacies analyses are applied to identify transgressive-regressive sequences and changes in paleoenvironment through the Middle Jurassic–Early Cretaceous succession of the Ramså Basin on Andøya. The conglomerate, the succeeding
Morten Smelror
doaj   +1 more source

Palynofacies and Source Rock Evaluation of Baluti Formation Late-Triassic in two selected wells in Duhok governorate, Iraqi Kurdistan Region.

Polytechnic Journal, 2018
cutting rock samples of Late Triassic Baluti Formation from two exploration wells (Atrush and Sheikhan wells), near Duhok city, Iraqi Kurdistan Region were analyzed to determine the Palynofacies, then to evaluate source rock potentiality and the thermal ...
Revan K. Akram, Srood F. Naqshabandi
doaj   +1 more source

Quantitative Biofacies Analysis to Identify Relationships and Refine Controls on Paleosol Development, Prince Creek Formation, North Slope Alaska, USA

Geosciences, 2021
Late Cretaceous coastal plain deposits of the Prince Creek Formation (PCF) offer a rare glimpse into an ancient, high-latitude, arctic greenhouse ecosystem for which there is no modern analog.
James R. Bonelli, Peter P. Flaig
doaj   +1 more source

Multiple early Eocene carbon isotope excursions associated with environmental changes in the Dieppe-Hampshire Basin (NW Europe)

BSGF - Earth Sciences Bulletin, 2020
The early Eocene experienced a series of short-lived global warming events, known as hyperthermals, associated with negative carbon isotope excursions (CIE).
Garel Sylvain, Dupuis Christian, Quesnel Florence, Jacob Jérémy, Yans Johan, Magioncalda Roberto, Fléhoc Christine, Schnyder Johann   +7 more
doaj   +1 more source

PALYNOFACIES AND SEDIMENTOLOGY OF HB-001 WELL

Malaysian Journal of Geosciences, 2023
The palynofacies and sedimentological analyses of the sedimentary succession of the HB-001 well were carried out to establish biozones and the palaeodepositional environment. Ninety-six samples of ditch cutting within intervals of depth of 1250 -4011 m were analyzed. Most of the previous researchers established biozones with alpha-numeric method.
openaire   +1 more source

Assessing Thermal Maturity through a Multi-Proxy Approach: A Case Study from the Permian Faraghan Formation (Zagros Basin, Southwest Iran)

Geosciences, 2021
This study focuses on the thermal maturity of Permian deposits from the Zagros Basin, Southwest Iran, employing both optical methods (Thermal Alteration Index, Palynomorph Darkness Index, Vitrinite Reflectance, UV Fluorescence) and geochemical analyses ...
Amalia Spina, Simonetta Cirilli, Andrea Sorci, Andrea Schito, Geoff Clayton, Sveva Corrado, Paulo Fernandes, Francesca Galasso, Giovanni Montesi, Zelia Pereira, Mehrab Rashidi, Roberto Rettori   +11 more
doaj   +1 more source

Palaeoenvironmental study and sequence stratigraphy of Sanghaneh Formation in Qalehjegh section (North of Bojnord) using organic matter contents of the rock unit [PDF]

Journal of Stratigraphy and Sedimentology Researches, 2015
  Introduction   Kopeh-Dagh basin is located northeast of Iran and in this basin the sedimentary beds began from middle Jurassic. The Sanghaneh Formation is one of the lower Cretaceous rock units in sections.
Hossein Kazemi, Ebrahim Ghasemi-Nejad
doaj   +2 more sources