Results 121 to 130 of about 3,921 (240)

Comparing carbonate and organic AMS- (super 14) C ages in Lake Abiyata sediments (Ethiopia); hydrochemistry and paleoenvironmental implications.

, 1999
Le Laboratoire de Géologie de la Matière Organique est intégré dans l'Institut des Sciences de la Terre d'Orléans - ISTO - CNRS Université d'OrléansWe studied a 12.6-m-long sequence from Lake Abiyata (Central Ethiopia) to establish a reliable and ...
Barbecot, Florent, Chernet, Tesfaye, Gibert, Elisabeth, Laggoun-Défarge, Fatima, Massault, Marc, Travi, Yves   +5 more
core   +2 more sources

Paleoceanography and dinoflagellate cyst stratigraphy across the Lower-Middle Pleistocene Subseries (Calabrian-Chibanian Stage) boundary at the Chiba composite section, Japan. [PDF]

Prog Earth Planet Sci, 2021
Balota EJ, Head MJ, Okada M, Suganuma Y, Haneda Y.   +4 more
europepmc   +1 more source

Palynofacies analysis of Naokelekan formation, Northern Iraq

, 2019
Palynofacies analysis of 38 rock samples of the Late Oxfordian-Early Kimmeridgian Naokelekan Formation from two exploratory wells and two outcrops in northern Iraq was performed. All samples taken from outcrops in Duhok and Sulaymaniyah provinces and well Bj-1 in northern Iraq were classified as palynofacies Type I (PF-1), which comprises mainly ...
Isamel, Jan., Orhan, Hükmü.
openaire   +1 more source

Variação isotópicas d13C carbonatos na Sucessão da Baía de Três Angras: afloramento Mesozóico da Carrapateira (Kimeridgiano Inferior) [PDF]

, 2014
O afloramento Mesozóico da Carrapateira (AMC), localizado a 20 km a norte de Sagres é formado por sedimentos do Triássico Superior ao Kimmeridgiano.
Borges, Marisa, Fernandes, Paulo, Goodhue, R., Matos, Vasco, Pereira, Zélia, Rodrigues, Bruno   +5 more
core  

Palynofacies analysis and paleoenvironmental reconstruction of Umuna well, Anambra basin, Southeastern NIGERIA

, 2019
Palynofacies analysis and paleoenvironmental reconstruction of Umuna well, Anambra basin, Southeastern NIGERIA Eze Victor Onyedikachi1, Ndubuisi Ukpabi2, Victoria Okereke3 1, 2, 3 Geology Department, University of Port Harcourt, Rivers State. Nigeria.
Eze Victor Onyedikachi, Ndubuisi Ukpabi, Okereke, Victoria   +2 more
openaire   +1 more source

Lethal microbial blooms delayed freshwater ecosystem recovery following the end-Permian extinction. [PDF]

Nat Commun, 2021
Mays C, McLoughlin S, Frank TD, Fielding CR, Slater SM, Vajda V.   +5 more
europepmc   +1 more source

Palynofacies and palynostratigraphy of the pennsylvanian Brejeira formation, SW Portugal

, 2018
O Grupo Flysch do Baixo Alentejo (GFBA) é a unidade mais ocidental da Zona Sul Portuguesa (ZSP; SW da Cintura Varisca Ibérica) e é constituído por depósitos siliciclásticos gravíticos formados numa sucessão turbidítica, com mais de cinco quilómetros de espessura (Oliveira, 1990).
openaire   +3 more sources

Palaeodepositional consequences for hydrocarbon generation using geochemistry and palynology: example from Auranga coalfield in India

Journal of Petroleum Exploration and Production Technology
Understanding the depositional environment is essential for evaluating hydrocarbon generation potential. This study examines the Lower Permian Barakar Formation in the Auranga Basin, part of the Damodar Valley within the Gondwana succession, by ...
Divya Kumari Mishra, Neha Aggarwal, Atul Kumar Varma   +2 more
doaj   +1 more source

Vegetation climate and marine environmental reconstruction in the western Mediterranean (southern Rifian corridor, Morocco) over the Tortonian-Messinian transition. [PDF]

Heliyon, 2021
Targhi S, Barhoun N, Bachiri Taoufiq N, Achab M, Ait Salem A, Yousfi MZ.   +5 more
europepmc   +1 more source

Mortality, protoplasm decay rate, and reliability of staining techniques to recognise 'living' foraminifera: a review.

, 2000
Non-vital staining, especially with rose Bengal, has been widely used in ecological studies to differentiate between the tests of dead(unstained) foraminifera from those presumed to be living at the time of collection (stained).
Bowser, S.S., Murray, J.W.
core