Results 41 to 50 of about 8,217 (293)

Chemostratigraphy of Upper Carboniferous (Pennsylvanian) sequences from the Southern North Sea (United Kingdom) [PDF]

, 2010
Important gas reservoirs occur in the Upper Carboniferous coal measures and red beds of the Southern North Sea. The thick red beds of the Boulton and Ketch formations are difficult to correlate, due to poor internal seismic definition, repetitive e-log ...
Cooper, Diana, Martin, John H., Pearce, Tim J., Wray, David S.   +3 more
core   +1 more source

Carbon isotope chemostratigraphy, geochemistry, and biostratigraphy of the Paleocene–Eocene Thermal Maximum, deepwater Wilcox Group, Gulf of Mexico (USA)

Climate of the Past, 2023
. The Paleocene–Eocene Thermal Maximum (PETM) represents the most pronounced hyperthermal of the Cenozoic era and is hypothesized to have resulted in an intensification of the paleohydrologic cycle, including enhanced seasonality and increased sediment ...
G. Sharman, E. Szymanski, Rebecca A. Hackworth, A. Kahn, Lawrence A. Febo, J. Oefinger, Gunnar M. Gregory   +6 more
semanticscholar   +1 more source

The laurentian record of neoproterozoic glaciation, tectonism, and eukaryotic evolution in Death Vally, California [PDF]

, 2013
Neoproterozoic strata in Death Valley, California contain eukaryotic microfossils and glacial deposits that have been used to assess the severity of putative Snowball Earth events and the biological response to extreme environmental change.
A. E. Fallick, A. R. Prave, Aitken, ALLISON, Allison, Armin, Bekker, Berney, BOND, Bowring, Brasier, BURCHFIEL, CLOUD, Cohen, Colpron, CORSETTI, Corsetti, Corsetti, D. Trotzuk, Dalziel, Dalziel, E. F. Smith, Erwin, F. A. Macdonald, F. Waechter, Fanning, FLECK, Goodge, Gutstadt, HOFFMAN, Hoffman, Hoffmann, James, K. Oates, Karlstrom, Kaufman, Kenny, Knauth, Labotka, Licari, Love, Lund, Macdonald, Macdonald, MILLER, Moores, NOBLE, Prave, R. Petterson, S. B. Pruss, Sears, SNOW, Snow, Snow, Timmons, Tucker, Vorob'eva, Walker, WERNICKE, Wright, WRIGHT, Yin, Zhou   +62 more
core   +1 more source

⁸⁷Sr/⁸⁶Sr chemostratigraphy of Neoproterozoic Dalradian limestones of Scotland and Ireland: constraints on depositional ages and time scales [PDF]

, 2004
New calcite ⁸⁷Sr/⁸⁶Sr data for 47 limestones from the metamorphosed and deformed Neoproterozoic-Cambrian Dalradian Supergroup of Scotland and Ireland are used to identify secular trends in seawater <sup>
Ellam, R.M., Fallick, A.E., Graham, C.M., Thomas, C.W.   +3 more
core   +1 more source

Chemostratigraphic Architecture of Sandstone Facies Exposed along Auchi-Ighara Road, Mid-Western Nigeria

GeoScience Engineering, 2022
In this work, inorganic whole-rock geochemistry was applied to characterize the exposed sandstone facies along the Auchi-Ighara road Anambra basin Midwestern, Nigeria for distinction and correlation of the depositional units on the basis of the ...
Phillips Reuben IKHANE, Odunayo Christy ATEWOLARA-ODULE, Olalekan Olayiwola OYEBOLU, Omotoso Richard FAKOLADE   +3 more
doaj   +1 more source

Latest Ordovician age of the Spinachitina fragilis Chitinozoan Biozone in Baltoscandia [PDF]

Estonian Journal of Earth Sciences, 2023
The global Spinachitina fragilis Chitinozoan Biozone has been considered the lowermost Silurian zone in most publications. S. fragilis was first described from the Ohesaare drill core, Estonia, and utilised as a Baltic regional zonal taxon together with ...
Jaak Nõlvak, Yan Liang, Olle Hints
doaj   +1 more source

Bio-chemostratigraphy of the Barremian-Aptian shallow-water carbonates of the southern Apennines (Italy): pinpointing the OAE1a in a Tethyan carbonate platform [PDF]

, 2012
Low biostratigraphic resolution and lack of chronostratigraphic calibration hinder precise correlations between platform carbonates and coeval deep-water successions.
DI LUCIA M., MUTTI M., PARENTE, MARIANO, TRECALLI, ALBERTO   +3 more
core   +2 more sources

Correlations of some Neoproterozoic carbonate-dominated successions in South America based on high-resolution chemostratigraphy [PDF]

, 2016
Esta revisão incorpora novos dados isotópicos e químicos para correlação quimioestratigráfica de sucessões, predominantemente carbonáticas, na América do Sul (Argentina, Bolívia, Brasil, Paraguai e Uruguai).
Alvarenga, Carlos José Souza de, Boggiani, Paulo Cesar, Cezario, Wilker dos Santos, Chiglino, Leticia, Fernández Ramírez, Rodrigo, Ferreira, Valderez Pinto, Gaucher, Claudio, Geraldes, Mauro, Misi, Aroldo, Pedreira, José Augusto, Pereira, Natan Silva, Pimentel, Marcio Martins, Sial, Alcides Nobrega, Warren, Lucas Verissimo   +13 more
core   +2 more sources

Gamma-ray, stable carbon and oxygen isotope chemostratigraphy and sequence stratigraphy of the Lower Mahil Formation (KS-1 Khuff-Equivalent), Northern Oman

Frontiers in Earth Science, 2023
This research presents findings from a study focused on the Lower Triassic (Induan) Lower Mahil KS-1 Formation, situated on a homoclinal carbonate platform in Northern Oman.
M. S. Moustafa, Rasha Al Raqaishi, M. El‐Ghali, Mohamed Gharbi, I. Abbasi, Aaraf Al Humaidi, Nada Al Ghafri, Marwa Musallam Alshukaili, Hezam Al-Awah   +8 more
semanticscholar   +1 more source

Mercury anomalies associated with three extinction events (Capitanian Crisis, Latest Permian Extinction and the Smithian/Spathian Extinction) in NW Pangea [PDF]

, 2015
Copyright © Cambridge University Press 2015. Strata of Permian - Early Triassic age that include a record of three major extinction events (Capitanian Crisis, Latest Permian Extinction and the Smithian/Spathian Extinction) were examined at the Festningen
Beauchamp, Benoit, Bond, David P.G., Grasby, Stephen E., Sanei, Hamed, Wignall, Paul B.   +4 more
core   +1 more source