Results 1 to 10 of about 2,783,264 (171)

Comparison and Renormalization of Holocene Paleointensity Records From Central North America (17°N–51°N, 205°E–295°E) [PDF]

Earth and Space Science, 2021
This paper develops a composite absolute paleointensity record for Holocene paleomagnetic secular variation (PSV) from central North America. Twelve full‐vector (inclination, declination, paleointensity) PSV records were assessed in order to build the ...
Steve P. Lund, Marci Richardson, Ken Verosub, John King, Duane Champion, Guillame St‐Onge   +5 more
doaj   +2 more sources

Two Records of Relative Paleointensity for the Past 4 Myr

Frontiers in Earth Science, 2020
We performed new high-resolution magnetic measurements of sedimentary cores from the east northern Pacific ODP Site 1021 and the East equatorial Pacific ODP Site 851.
Jean-Pierre Valet, Anojh Thevarasan, Franck Bassinot, Tatiana Savranskaia, Naoufel Haddam   +4 more
doaj   +2 more sources

The importance of clays in speleothem magnetic remanence acquisition [PDF]

Scientific Reports
Speleothems are promising recorders of paleosecular variation of the Earth’s magnetic field, but ambiguities remain about the physical processes active during remanence acquisition.
Rashida Doctor, Joshua M. Feinberg, Plinio Jaqueto, Ricardo Trindade, Janine A. Carmo   +4 more
doaj   +2 more sources

Millennial paleoclimate variations on the Central Tibetan Plateau during MIS4-MIS2 inferred from a sediment core based RPI chronology [PDF]

Scientific Reports
Lakes on the Tibetan Plateau, highly sensitive to environmental changes, play a key role in paleoclimatic studies. However, dating limitations often constrain investigations to periods before the Last Glacial Maximum (LGM).
Yang Zhang, Junbo Wang, Shuangwen Yi, Siwei Yu, Jinlei Kai, Yao Gu, Qingfeng Ma, Jianting Ju, Liping Zhu   +8 more
doaj   +2 more sources

Magnetic mineralogy of the Baringo core (HSPDP-BTB13-1A, Kenya) shows astronomical forcing with implications for retrieving meaningful paleointensity [PDF]

Open Research Europe
This study evaluates the potential of the BTB13 sedimentary core from the Baringo Basin, Kenya, to contribute to relative paleointensity (RPI) records and improve geochronological correlations across Eastern Africa.
Mark J. SIER, Bianca R. Spiering, Mark J. Dekkers, Frits J. Hilgen   +3 more
doaj   +2 more sources

Influence of Magnetofossils on Paleointensity Estimations Inferred From Principal Component Analyses of First‐Order Reversal Curve Diagrams for Sediments From the Western Equatorial Pacific

Geochemistry, Geophysics, Geosystems, 2021
Relative abundance of magnetite originated from magnetotactic bacteria (magnetofossils) in sediments may influence relative paleointensity (RPI) estimations of the geomagnetic field, as some studies reported an inverse correlation between RPI and the ...
Kosuke Inoue, Toshitsugu Yamazaki, Yoichi Usui   +2 more
doaj   +1 more source

Dating North Pacific Abyssal Sediments by Geomagnetic Paleointensity: Implications of Magnetization Carriers, Plio-Pleistocene Climate Change, and Benthic Redox Conditions

Frontiers in Earth Science, 2021
Non-carbonaceous abyssal fine-grained sediments cover vast parts of the North Pacific’s deep oceanic basins and gain increasing interests as glacial carbon traps.
Wanzhang Wang, Tilo von Dobeneck, Thomas Frederichs, Yang Zhang, Lester Lembke-Jene, Ralf Tiedemann, Michael Winklhofer, Dirk Nürnberg   +7 more
doaj   +1 more source

The necessity of data availability in maintaining the value and longevity of paleointensity results

Frontiers in Earth Science, 2014
Asserting the reliability of paleointensity estimates, or comparing relative reliabilities between vastly or subtly different results is a key challenge for paleointensity studies, which often leaves interpretations of these data rife with ambiguities ...
Greig A. Paterson
doaj   +1 more source

Relative Paleointensity Record of Integrated Ocean Drilling Program Site U1396 in the Caribbean Sea: Geomagnetic and Chronostratigraphic Observations in the Pliocene

Geochemistry, Geophysics, Geosystems, 2021
Continuous sedimentary records of paleomagnetic directional variability and relative paleointensity (RPI) provide valuable information on the evolution of the geodynamo while also facilitating stratigraphic correlation and age control.
R. G. Hatfield, J. S. Stoner, A. J. Fraass   +2 more
doaj   +1 more source

A Relative Paleointensity (RPI)-Calibrated Age Model for the Corinth Syn-rift Sequence at IODP Hole M0079A (Gulf of Corinth, Greece)

Frontiers in Earth Science, 2022
The Corinth basin (Greece) is a young continental rift that recorded cyclic basin paleoenvironment variations (i.e., marine to lacustrine) caused by glacio-eustatic sea level fluctuations during its initial connection to the global oceans.
Marco Maffione, Emilio Herrero-Bervera
doaj   +1 more source