Results 81 to 90 of about 5,324 (185)

Sedimentary biogeochemical provinces in the northern limit of the oxygen minimum zone from the northeastern Mexican Pacific

Sedimentology, Volume 73, Issue 5, Page 1403-1420, August 2026.
ABSTRACT Continental margins are reservoirs of materials of terrestrial and marine origin, and they play a crucial role in understanding the spatial and temporal variability of biogeochemical cycles. This, in turn, provides insights into the development and intensity of oxygen minimum zones (OMZs).
Alberto Sánchez
wiley   +1 more source

Climate conditions on the South‐Iberian Palaeomargin during the latest Pliensbachian to early Toarcian: A mineralogical and geochemical study from hemipelagic deposits

Sedimentology, Volume 73, Issue 5, Page 1631-1663, August 2026.
ABSTRACT The integrated analysis of lithofacies, mineralogy and geochemistry of the hemipelagic marine succession exposed in La Cerradura section (South‐Iberian Palaeomargin) provides new information to characterise the palaeoenvironmental conditions during the latest Pliensbachian to early Toarcian, including the Jenkyns Event.
Chaima Ayadi, Isabel Abad, Elisa Laita, Ali Mokhtar Samet, Matías Reolid   +4 more
wiley   +1 more source

Shallow water foraminifera from Niue and Beveridge Reef (South Pacific): insights into ecological significance and ecosystem integrity

Royal Society Open Science
Niue represents one of many important steppingstones facilitating the dispersal of marine organisms across the tropical Pacific Ocean. This study is part of a collaborative expedition involving National Geographic Pristine Seas, the government of Niue ...
Shai Oron, Alan M. Friedlander, Enric Sala, Beverly N. Goodman-Tchernov   +3 more
doaj   +1 more source

Dansgaard‐Oeschger Events Recorded in Low‐Latitude Marine Sediments and Teleconnection With High‐Latitude Climate Variations

Geophysical Research Letters, Volume 53, Issue 14, 28 July 2026.
Abstract Dansgaard‐Oeschger (D‐O) events are millennial‐scale high‐latitude climate oscillations with abrupt climate transitions between stadial and interstadial conditions, which are well recorded in and outside of high northern latitudes. However, their signal propagation mechanisms from high to low latitudes are uncertain.
Zhanjie Liu, Zhaoxia Jiang, Long Chen, Andrew P. Roberts, Sanzhong Li, Liang Chen, Zhengxin Yin, Wanxin Liu, Yulong Guan, Yuzhen Zhang   +9 more
wiley   +1 more source

FORAMINIFERA

, 1958
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire   +1 more source

Foraminifera Fauna in the Core Sediments of the Ulleung Basin, East Sea (Sea of Japan) of Republic of Korea

Diversity
Foraminifera are unicellular protists with external shells (tests) that may be calcareous (porcelaneous or hyaline), agglutinated, or organic-walled. Their test morphology and as-assemblage composition closely track environmental forcing, making them ...
Hyun Ju Ha, Jeong Won Kang, Byung-Cheol Kum, Dong-Hyeok Shin, Don-Hyug Kang, Sungho Cho, Seung Won Jung, Joon Sang Park   +7 more
doaj   +1 more source

Post Cretaceous/Paleogene boundary recovery of the deep marine ecosystem recorded by benthic foraminiferal morphogroups

Acta Palaeontologica Polonica
The uppermost 2 meters of the Maastrichtian Scaglia Rossa Fm. (Gubbio, Italy) record a notable change in the proportions of morphogroups of deep-water agglutinated foraminifera beginning about 1.4 m below the boundary, where we observe a gradual decrease
Michael A. Kaminski, Syouma Hikmahtiar, Claudia G. Cetean   +2 more
doaj   +1 more source

Tracking Agulhas Leakage in the South Atlantic Using Modern Planktic Foraminifera Nitrogen Isotopes

Geochemistry, Geophysics, Geosystems
Seawater transported into the South Atlantic from the Indian Ocean via “Agulhas leakage” modulates global ocean circulation and has been linked to glacial‐interglacial climate cycles. However, constraining past Agulhas leakage has been a challenge.
R. Granger, S. M. Smart, A. Foreman, A. Auderset, E. C. Campbell, T. A. Marshall, G. H. Haug, D. M. Sigman, A. Martínez‐García, S. E. Fawcett   +9 more
doaj   +1 more source

Foraminifera [PDF]

Nature, 1973
openaire   +2 more sources

Foraminifera

Capítulo dedicado a la enseñanza universitaria. Trata sobre foraminíferos (microfósiles), su morfología, sistemática, evolución, aplicaciones en bioestratigrafía, paleoecología y paleoambientes, y paleobiogeografía. Contiene un anexo con ilustraciones de las especies de foraminíferos más características del Mesozoico y Cenozoico de la Argentina.
Nañez, Carolina Adela, Malumian, Norberto, Jannou, Gabriel Eugenio   +2 more
openaire   +1 more source