Results 91 to 100 of about 6,689 (261)

Chemostratigraphy of the Snorry Drift in the North Atlantic

Oceanology, 2019
On the basis of multi-element chemical analysis and oxygen isotopic data, for the first time the distribution of some geochemical indicators was investigated in the sediment core taken at the Western slope of the Snorry contourite drift (St. AI-3378, North Atlantic) in the 49th cruise of RV "Akademik Ioffe" in 2015. Down the core an asynchronous change
L. L. Demina, Ye. A. Novichkova, N. V. Kozina   +2 more
openaire   +2 more sources

The Neoproterozoic Throssell Range Group, Western Australia: A Peri‐Marginal Continental Basin in Rodinia and Its Implications for the Centralian Superbasin

Basin Research, Volume 38, Issue 1, January–February 2026.
This study of recent exploration drillcore reveals two sequences separated by a disconformity. Basal alluvial fan to shallow marine lithofacies suggest reactivation of basement faults, and a distinct upwelling signature points to a flooded margin, controlled by differential subsidence of diverse Proterozoic lithosphere.
Ross B. Campbell, Peir K. Pufahl, Penelope Sinclair, Erin L. Martin, Lillian H. Cybulski, Urmidola Raye, Paul Polito, Rebecca Church, Marina Joury, Daniel Layton‐Matthews   +9 more
wiley   +1 more source

A multiproxy (micro-XRF, pollen, chironomid and stable isotope) lake sediment record for the Lateglacial to Holocene transition from Thomastown Bog, Ireland [PDF]

, 2015
A multiproxy Lateglacial environmental record is presented for a ca. 3.5-m lacustrine sequence retrieved from a small basin (ca. 2 km2) at Thomastown Bog in County Meath, Ireland.
Ahlberg, Andrieu, Bedford, Bennet, Benson, Björck, Björck, Brodersen, Brooks, Brooks, Candy, Clark, Clark, Clark, Cwynar, Diefendorf, Diefendorf, Ehleringer, Ghilardi, Grimm, Grimm, Guyard, Haslett, Head, Heiri, Heiri, Heiri, Hoek, Holmes, Jouve, Lang, Larocque, Larsen, Leng, Leng, Lowe, Mayle, Meyers, Meyers, Molloy, O'Connell, Parker, Quinlan, Reimer, Rieradevall, Schelske, Schettler, Self, Swindles, Talbot, Talbot, Telford, Tolosana-Delgado, Turney, Valero-Garcés, Van Asch, Van Asch, Van Raden, Walker, Walker, Walker, Walker, Watson, Watts, Wohlfarth, Young   +65 more
core   +2 more sources

Carbon isotope chemostratigraphy of the Yucca Formation from the Solitario, Big Bend Ranch State Park, Texas

Frontiers in Earth Science
Introduction: The Yucca Formation is a Lower Cretaceous sedimentary unit present in West Texas. Based on its relative stratigraphic position in the Cretaceous succession of West Texas, it is expected that the Yucca Formation is of Albian and/or Aptian ...
E. J. Biebesheimer, M. B. Suarez
doaj   +1 more source

Comparison of chemically estimated depositional ages with zircon SHRIMP ages from metacarbonate rocks in the Sør Rondane Mountains, East Antarctica [PDF]

, 2016
第3回極域科学シンポジウム/第32回極域地学シンポジウム 11月30日（金） 国立極地研究所 ...
Grantham G.H., Hokada T., Horie K., Ishikawa M., Kamei A., Kawakami T., Otsuji N., Satish-Kumar M., Tsuchiya N.   +8 more
core   +1 more source

A Novel Intelligent Sedimentary Microfacies Identification Model Based on Limited Well‐Logging Data

International Journal of Intelligent Systems, Volume 2026, Issue 1, 2026.
Sedimentary microfacies identification is fundamental for reservoir characterization, directly influencing hydrocarbon exploration and production strategies. However, traditional methods relying on core analysis, seismic interpretation, and manual well‐log analysis face significant challenges: (1) high costs and limited coverage of coring data, (2 ...
Tianru Song, Weiyao Zhu, Hongqing Song, Ming Yue, Richard Murray   +4 more
wiley   +1 more source

Ultra-shallow-marine anoxia in an Early Triassic shallow-marine clastic ramp (Spitsbergen) and the suppression of benthic radiation [PDF]

, 2015
Lower Triassic marine strata in Spitsbergen accumulated on a mid-to-high latitude ramp in which high-energy foreshore and shoreface facies passed offshore into sheet sandstones of probable hyperpycnite origin.
Beauchamp, Benoit, Blomeier, Dierk P G, BLOMEIER, DIERK P. G., BOND, DAVID P. G., Bond, David P. G., Grasby, Stephen E., Joachimski, Michael M., Sun, Yadong, Wignall, Paul B.   +8 more
core   +1 more source

A >70‐Myr‐Long Geomagnetic Field Reversal Hyperactivity Across the Ediacaran‐Cambrian Transition

Geophysical Research Letters, Volume 52, Issue 23, 16 December 2025.
Abstract The long‐term variation of the geomagnetic field is a key constraint for unraveling the geodynamo processes and the evolution of Earth's deep interior. However, the geomagnetic reversal pattern during the Ediacaran–Cambrian transition remains elusive. Here we present an integrated magneto‐ and cyclo‐stratigraphic study of a ∼1.8‐Myr‐long, late
Fuyun Shen, Bin Wen, Phil J. A. McCausland, Zheng Gong, Zongmin Zhu, Fangzheng Liu, Jingyi Wang   +6 more
wiley   +1 more source

Geochemistry of the Northern Paraná Continental Flood Basalt (PCFB) Province: implications for regional chemostratigraphy

Brazilian Journal of Geology
: The Paraná Continental Flood Basalt (PCFB) province is one of the largest igneous provinces on Earth, but little is known about the architecture and geochemical characteristics of the lava flows.
Fábio Braz Machado, Eduardo Reis Viana Rocha-Júnior, Leila Soares Marques, Antonio José Ranalli Nardy, Larissa Vieira Zezzo, Natasha Sarde Marteleto   +5 more
doaj   +1 more source

Insights From New Age Constraints and Sediment Volumes From the Austrian Northern Alpine Foreland Basin [PDF]

, 2019
Detailed characterization of variations in sediment architecture, flux, and transport processes in peri-orogenic basins offers insights into external climatic or tectonic forcings.
Auer, Gerald, Bernhardt, Anne, Fischer, Gero, Grunert, Patrick, Hülscher, Julian   +4 more
core   +1 more source