Results 41 to 50 of about 614 (181)

Worldwide database for magnetostratigraphy available [PDF]

Eos, Transactions American Geophysical Union, 1998
The International Association of Geomagnetism and Aeronomy (IAGA) has sponsored the development of databases in paleomagnetism and rock magnetism. The databases operate under Microsoft Access V2.0 (for Windows 3.1) or Access 97 (for Windows 95) [McElhinny and Lock, 1996].
McElhinny, Michael W., Opdyke, Neil D., Pisarevsky, Sergei A.   +2 more
openaire   +2 more sources

Drilling the Marathousa palaeo‐lake in Greece (Peloponnese): inferring the environmental context of a Middle Pleistocene archaeological site

Boreas, Volume 55, Issue 3, Page 866-884, July 2026.
The Megalopolis Basin is located in the central Peloponnese (Greece), a region that is situated along one of the primary Pleistocene biogeographical corridors for intracontinental hominin migration. The basin comprises several hundred metres of Plio‐Pleistocene sediments alternating between clastics and lignites.
Ines J. E. Bludau, Bernd Wagner, Uwe Kirscher, Maria Schindler, Charlotte Zachow, Johannes Schmidt, Niklas Leicher, Giovanni Muttoni, Serena Perini, Vangelis Tourloukis, Eleni Panagopoulou, Panagiotis Karkanas, Katerina Harvati, Annett Junginger   +13 more
wiley   +1 more source

Geomagnetic Excursions Recorded in North Atlantic IODP Expedition 395C Sites U1555 and U1563

Geochemistry, Geophysics, Geosystems
By studying deep‐sea drilled records from the North Atlantic Ocean, several magnetic instabilities of short duration, such as the Iceland Basin (188 ka), the Björn (1,255 ka) and the Gardar (1,460 ka) excursions, were discovered.
Anita Di Chiara, Sara Satolli, Sarah A. Friedman, Deepa Dwyer, Gary D. Acton, Tom Dunkley Jones, Boris Theofanis Karatsolis, Paul N. Pearson, Takuma Suzuki, Sevasti Modestou, Suzanne O'Connell, Halima Ibrahim, Claire E. Jasper, Danielle E. LeBlanc, Saran Lee‐Takeda, Thena Thulasi, Deborah E. Eason, Matthias Sinnesael, Katharina Hochmuth, Anne Briais, Ross Parnell‐Turner, Leah J. LeVay, Expedition 395C/395 Science Party   +22 more
doaj   +1 more source

Integrated Pliocene-Pleistocene magnetostratigraphy and tephrostratigraphy of deep-sea sediments at IODP Site U1424 (Yamato Basin, Japan Sea)

Progress in Earth and Planetary Science, 2020
Sediments from the semi-enclosed Japan Sea are sensitive to paleoclimatic perturbations and they offer great opportunities for many regional and global paleoceanographic and paleoclimatic studies. These studies often require a robust chronology. However,
Chuang Xuan, Yuxi Jin, Saiko Sugisaki, Yasufumi Satoguchi, Yoshitaka Nagahashi   +4 more
doaj   +1 more source

Quantification of the Eocene–Oligocene transition in the Zagros Foreland Basin: Palaeogeographic control on sequence architecture and tectonic signal preservation

The Depositional Record, Volume 12, Issue 3, June 2026.
New bio‐sequence framework for the Eocene–Oligocene transition in Zagros. Geochemical data validate basin depth control on SB1 vs. SB2 boundaries. SEM‐EDS analyses confirm subaerial exposure versus continuous deposition. Sensitivity analysis quantifies sub‐10% uncertainty in stratigraphic interpretations. Resolves the Pyrenean orogeny's variable impact
Sahar Rokni, Vahid Ahmadi, Seyed Hamid Vaziri, Ali Aghanabati, Pooria Kianoush   +4 more
wiley   +1 more source

A Hyperactive Geomagnetic Field in the Late Visean (Early Carboniferous) From the Late Asbian Stratotype Section in Northwest England, UK

Geochemistry, Geophysics, Geosystems
The pattern of geomagnetic polarity changes during the Early Carboniferous (Mississippian) is not known in detail. This information sparsity is addressed by determining a magnetostratigraphy from the late Asbian (late Visean at ∼333 Ma) in Trowbarrow ...
Mark W. Hounslow, Andrew J. Biggin, Pedro Cózar, Ian D. Somerville, Tereza Kamenikova, Courtney J. Sprain   +5 more
doaj   +1 more source

Loess Studies in Aotearoa New Zealand

New Zealand Journal of Geology and Geophysics, Volume 69, Issue 2, June 2026.
Loess in Aotearoa New Zealand (ANZ) has been studied since its first documented recognition (on Banks Peninsula) in 1878 by Julius von Haast. A decade later, John Hardcastle revealed that southern ANZ loess was both glacial in origin and contained signals of past climates.
Brent V. Alloway, David J. Lowe, Bradley J. Pillans, Peter C. Almond, Alan S. Palmer   +4 more
wiley   +1 more source

Temperature‐Driven Silicate Weathering Feedbacks Terminated the Middle Eocene Climatic Optimum

Geophysical Research Letters, Volume 53, Issue 9, 16 May 2026.
Abstract Continental hydroclimate dynamics and its responses during the Middle Eocene Climatic Optimum (MECO, ∼40 Ma) remain largely unexplored. Here, we present high‐resolution multi‐proxy records from four East Asian lake basins that demonstrate precipitation, chemical weathering, and terrestrial input underwent multi‐phase changes during the MECO ...
Yiquan Ma, Majie Fan, Philip A. E. Pogge von Strandmann, Christian Zeeden, Yangbo Lu, Yongchao Lu, Fang Hao   +6 more
wiley   +1 more source

A palaeomagnetic study of Syrian volcanic rocks of Miocene to Holocene age [PDF]

Geofísica Internacional, 1999
Miocene and younger volcanic rocks from Syria show both normal and reversed polarities after thermal demagnetisation. Similarities in site mean directions may be used to establish lavas erupted at similar times.
A. L. Abdeldayem, D. H. Tarling, J. M. Abou-Deeb, M. M. Otaki   +3 more
doaj  

Integrated stratigraphy of the Upper Barremian–Aptian sediments from the south-eastern Crimea

Geologica Carpathica, 2018
Previous studies made in different parts of the world have shown that Barremian–Aptian times imply many difficulties in deciphering the biostratigraphy, microfossil evolution and correlation of bioevents.
Karpuk Maria S., Shcherbinina Ekaterina A., Brovina Ekaterina A., Aleksandrova Galina N., Guzhikov Andrey Yu., Shchepetova Elena V., Tesakova Ekaterina M.   +6 more
doaj   +1 more source