Results 51 to 60 of about 4,235 (222)

Rates of Geomagnetic Field Change During Excursions and Reversals

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 10, October 2026.
Abstract The Earth's magnetic field is characterized by complex changes, reflecting various geodynamo processes. Paleomagnetic studies have provided evidence of geomagnetic polarity reversals and excursions throughout Earth's history. We use data‐based paleomagnetic field models (LSMOD.2, GGFSS70, and GGFMB) and the axial dipole moment reconstruction ...
Sunaina Shinu, Ahmed Nasser Mahgoub, Monika Korte   +2 more
wiley   +1 more source

A revision of the stratigraphyfor the Middle Pleistocene continentaI deposits of Rome(CentraI Italy): palaeomagnetic data

Annals of Geophysics, 1995
All improved knowledge of the stratigraphy of the Rome area has been achieved trom the interpretation and correlation of a large number of stratigraphic logs from drillings, stored in a data bank by the Istituto Nazionale di Geofisica which allowed the ...
F. Marra, F. Florindo
doaj   +1 more source

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

Table S30 - Magnetostratigraphy ODP Site 207-1258

, 2017
Table S30 - Magnetostratigraphy ODP Site 207 ...
James C Zachos (6958619), Westerhold, Thomas, Wilkens, Roy H, Isabella Raffi (6961205), Roy H Wilkens (6963410), Agnini, Claudia, Thomas Frederichs (6965138), Ursula Röhl (6959540), Frederichs, Thomas, Raffi, Isabella, Röhl, Ursula, Zachos, James C, Thomas Westerhold (6960026), Claudia Agnini (7908953)   +13 more
core   +1 more source

The Size of Greater India: Estimates by Comparing the Apparent Polar Wander Paths of the Tethyan Himalaya and the Indian Craton

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 10, October 2026.
Abstract The northern extent of Greater India is a critical, yet highly debated, parameter for reconstructing the India‐Asia collision. Previous paleomagnetic estimates, including the fill‐the‐gap and fixed great circle approaches, yield widely varying results, spanning from ∼200 to ∼3,000 km. These large discrepancies stem principally from two primary
Xianwei Jiao, Suo Wang, Yong Zhao, Tongming Fang   +3 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

Transition of Glacial Regimes Recorded at IODP Site U1524 in the Ross Sea, Antarctica, Over the Last 800 Thousand Years

Paleoceanography and Paleoclimatology, Volume 41, Issue 10, October 2026.
Abstract Reconstructing past interactions between the West Antarctic Ice Sheet (WAIS) and changing environmental conditions in the Ross Sea region can help determine long‐term WAIS stability. Existing sedimentary records reveal changes to oceanography, sea ice and ice sheet extent over the glacial‐interglacial cycles of the last ∼800 kyr.
J. W. Marschalek, T. van de Flierdt, M. O. Patterson, G. Grant, S. Kim, W. Xiao, Q. Li, G. Cortese, S. Bombard, R. M. Leckie, H. Ishii, T. van Peer, C. Xuan, S. Sugisaki, J. Müller, D. Kaufman, D. K. Kulhanek, K. J. Licht, S. R. Hemming, O. Seki, E. Colizza, F. Torricella, J. Gales, B. W. Romans, N. Varela, L. De Santis, R. M. McKay   +26 more
wiley   +1 more source

(Table S7) Magnetostratigraphy of Site 198-1210

, 2008
(Table S7) Magnetostratigraphy of Site 198 ...
Simonetta Monechi (6886928), Westerhold, Thomas, Eliana Fornaciari (7894772), Isabella Raffi (6961205), Monechi, Simonetta, Viviana Reale (6973730), Reale, Viviana, Bowles, Julie, Ursula Röhl (6959540), Raffi, Isabella, Röhl, Ursula, Julie Bowles (6973733), Evans, Helen F, Thomas Westerhold (6960026), Helen F Evans (6973736), Fornaciari, Eliana   +15 more
core   +1 more source

New Constraints on the Onset of Antarctic Glaciation From Combined Radiogenic Hafnium and Neodymium Isotopes

Geophysical Research Letters, Volume 53, Issue 18, 28 September 2026.
Abstract The drawdown of atmospheric CO2 likely triggered Antarctic glaciation during the Eocene‐Oligocene Transition (34 Ma). Accurately constraining this shift from “greenhouse” to an “icehouse” climate is essential for understanding global carbon cycle dynamics.
Keehwan Lee, Franco Marcantonio, Michael Bizimis, Howie D. Scher, Brian W. Romans, Lucien Nana Yobo   +5 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