Results 71 to 80 of about 7,973 (217)

New Insights Into Hikurangi Subduction Inputs and Megathrust Host Rocks Spanning Along‐Margin Changes in Fault Slip Behavior

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 6, June 2026.
Abstract The seismic behavior of subduction megathrusts varies spatially and is influenced by the properties of subducting plates, including their sedimentary cover. Characterizing these subduction inputs is essential for understanding the mechanisms behind fault slip variability.
Philip M. Barnes, Gareth J. Crutchley, Martin P. Crundwell, Stuart A. Henrys, Andrew Gase, Sam R. Davidson, Nathan Bangs, Harm Van Avendonk, Michael Underwood, Anthony E. Shorrock, Laura S. McDonald, Lorna J. Strachan, Helen C. Bostock   +12 more
wiley   +1 more source

Response of the Nitrogen Isotopic Composition of Planktic Foraminifer Tissue to Surface Ocean Nutrient Cycling: A Case Study in the Northern South China Sea

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 6, June 2026.
Abstract This study presents data on geographically small‐scale patterns of nitrogen (N) isotope signals (δ15N) within the northern South China Sea (SCS) imprinted on planktic foraminifers (PF). PF from net tows on the shelf, continental slope, and in pelagic waters from summer 2019 were analyzed for δ15N.
Aaron L. Bieler, Lena Heins, Sandi M. Smart, Jassin Petersen, Tobias Eßmann, Birgit Gaye, Joanna J. Waniek, Daniel M. Sigman, Gerald H. Haug, Alfredo Martínez‐García, Ralf Schiebel   +10 more
wiley   +1 more source

Evidence for Limited Atmospheric CO2 Rise at the Miocene Climatic Optimum

Paleoceanography and Paleoclimatology, Volume 41, Issue 6, June 2026.
Abstract The Miocene Climatic Optimum (MCO; 16.9–14.7 Ma) was a relatively warm period with atmospheric CO2 averaging ∼500 μatm but CO2 change across its onset is poorly documented. We present a record of algal 13C‐fractionation covering the Early to Middle Miocene (∼18.5–15 Ma), with a gap at the MCO onset, from Ocean Drilling Program Site 959 in the ...
Evi Wubben, Joost Frieling, Yannick F. Bats, Linda van Roij, Kirsten de Haan, Gert‐Jan Reichart, Francien Peterse, Francesca Sangiorgi, Marcel T. J. van der Meer, Appy Sluijs   +9 more
wiley   +1 more source

Planktonic foraminifera in sediment trap OMEX2_trap

, 2010
Planktonic foraminifera in sediment trap ...
Mark R Chapman (6967613), Chapman, Mark R   +1 more
core   +1 more source

Reconstructing the Exhumation and Paleo‐Earthquake History of a Submarine Normal Fault From Preserved Markers at the Seafloor (Roseau Fault, Lesser Antilles, France)

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 6, June 2026.
Abstract Assessing seismic and tsunami hazards along coastlines requires understanding past earthquakes and their recurrence along active submarine faults. Subaqueous paleoseismology commonly relies on sediment cores and seismic reflection data, but these methods may be limited by local site conditions or data quality.
Frédérique Leclerc, Jérémy Billant, Chloé Seibert, Javier Escartin, Nathalie Feuillet, Alex Hughes, Sabine Schmidt, Laurence Le Callonnec   +7 more
wiley   +1 more source

Biostratigraphy, facies and sequence stratigraphy of the Sarvak Formation in the Ahwaz Oil Field, North Dezful Embayment Zone [PDF]

Journal of Stratigraphy and Sedimentology Researches, 2016
Paleontological studies lead to recognition of 21 genera and 16 species of benthic foraminifera, 5 genera and 6 species of planktonic foraminifera and 3 genera and 3 species of oligosteginids.
Mohammad Hasan Kazemzadeh, مسعود لطف پور   +1 more
doaj  

Late Jurassic Carbon Isotope Excursion (Middle Oxfordian Event) Paces With Astronomical Forcing in the Northwestern Tethys

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 6, June 2026.
Abstract Marine carbonate carbon isotopes (δ13C), over orbital to multi‐million‐year timescales, provide critical insight into the carbon cycle connecting Earth's atmosphere, lithosphere, hydrosphere and biosphere. However, the influence of astronomical forcing on deep time carbon cycle dynamics remains poorly constrained.
Deyan Zhang, Su Li, Xu Yao, Chuanlong Mou, Ulrich Heimhofer   +4 more
wiley   +1 more source

Biostratigraphy of the Danian/Selandian transition: A case study from Kamestan anticline section, northwest of Izeh city in Khuzestan province, Southern Iran

, 2010
The planktonic foraminifera turnover across the Danian-Selandian boundary (early to late Paleocene, ~60 Ma) has been studied in the Kamestan anticline section. The studied interval span planktonic foraminifera zones P2-P3.
Nasrin Hadavandkhani, Abbas Sadeghi
core  

A novel salinity proxy based on Na incorporation into foraminiferal calcite [PDF]

, 2013
Salinity and temperature determine seawater density, and differences in both thereby control global thermohaline circulation. Whereas numerous proxies have been calibrated and applied to reconstruct temperature, a direct and independent proxy for ...
Reichart, G.J., Nooijer, L.J. de, Wit, Johannes C., Reichart, G.-J., Wit, JC, G. J. Reichart, de Nooijer, LJ, Wit, J.C., Reichart, GJ, L. J. de Nooijer, Wolthers, M., de Nooijer, Lennart, de Nooijer, L.J., Reichart, Gert-Jan, J. C. Wit, Wolthers, MVH, M. Wolthers   +16 more
core   +1 more source

Palaeobiogeography of early planktonic foraminifera

Bulletin de la Société Géologique de France, 2009
AbstractOver the last 50 years, our knowledge of early planktonic foraminifera has changed markedly. In 1958 Grigelis described “Globigerina oxfordiana” from the Upper Jurassic of Lithuania and this has, subsequently, become identified as one of the most geographically widespread of Jurassic planktonic taxa.
Christopher W. Smart, Malcolm B. Hart, Wendy Hudson   +2 more
openaire   +1 more source