Results 21 to 30 of about 231 (169)

Bulk magnetic domain stability controls paleointensity fidelity [PDF]

open access: yesProceedings of the National Academy of Sciences of the United States of America, 2017
Yuhji Yamamoto   +2 more
exaly   +2 more sources

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

open access: yesFrontiers 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

Origin of orbital periods in the sedimentary relative paleointensity records

open access: yesPhysics of the Earth and Planetary Interiors, 2008
Abstract Orbital cycles with 100 kyr and/or 41 kyr periods, detected in some sedimentary normalized remanence (relative paleointensity) records by power spectral analysis or wavelet analysis, have been attributed either to orbital forcing of the geodynamo, or to lithologic contamination.
Department of Geological Sciences, University of Florida Williamson Hall, P.O. Box 112120, Gainesville, FL 32611, United States ( host institution )   +2 more
openaire   +2 more sources

Paleoclimate evolution of the North Pacific Ocean during the late Quaternary: Progress and challenges

open access: yesGeosystems and Geoenvironment, 2023
High- and low-latitude climatic processes in the North Pacific Ocean are important components of the global climate system. For example, the interplay among North Pacific atmospheric circulation, ocean circulation, and biological productivity affects ...
Yi Zhong   +10 more
doaj   +1 more source

A paleomagnetic record in loess–paleosol sequences since late Pleistocene in the arid Central Asia

open access: yesEarth, Planets and Space, 2018
Geomagnetic excursions during Brunhes epoch have been brought to the forefront topic in paleomagnetic study, as they provide key information about Earth’s interior dynamics and could serve as another tool for stratigraphic correlation among different ...
Guanhua Li   +5 more
doaj   +1 more source

Natural remanent magnetization acquisition in bioturbated sediment: General theory and implications for relative paleointensity reconstructions

open access: yesGeochemistry, Geophysics, Geosystems, 2015
We present a general theory for the acquisition of natural remanent magnetizations (NRM) in sediment under the influence of (a) magnetic torques, (b) randomizing torques, and (c) torques resulting from interaction forces.
R. Egli, X. Zhao
doaj   +1 more source

Paleomagnetic Constraint of the Brunhes Age Sedimentary Record From Lake Junín, Peru

open access: yesFrontiers in Earth Science, 2020
Normalized remanence, a proxy for relative geomagnetic paleointensity, along with radiocarbon and U-Th age constraints, facilitates the generation of a well-constrained chronology for sediments recovered during International Continental Scientific ...
Robert G. Hatfield   +9 more
doaj   +1 more source

Application of the pseudo-Thellier technique to a paleomagnetic record from lake El Trébol (Patagonia, Argentina) [PDF]

open access: yesGeofísica Internacional, 2008
The pseudo-Thellier technique was applied to obtain relative paleointensity determinations using a sediment core from Lake El Trébol (Patagonia, Argentina).
M. A. E. Chaparro   +4 more
doaj  

Eruptive timing and 200 year episodicity at 92°W on the hot spot‐influenced Galapagos Spreading Center derived from geomagnetic paleointensity

open access: yesGeochemistry, Geophysics, Geosystems, 2014
Eruptive timing in mid‐ocean ridge systems is relatively poorly constrained, despite being an important variable in our understanding of many mid‐ocean ridge processes, including volcanic construction; magma recharge, flux, and storage; and the stability
Julie A. Bowles   +5 more
doaj   +1 more source

Saw-toothed pattern of relative paleointensity records and cumulative viscous remanence [PDF]

open access: yesEarth and Planetary Science Letters, 1996
Several studies of relative paleointensity data derived from marine sediments spanning the last 4 Myr display an asymmetrical “saw-toothed” pattern. Polarity reversals of the geomagnetic field are associated with low points in paleofield intensity, preceded by a long-term progressive decay of the field and followed by a rapid post-transitional recovery
Kok, Yvo S., Tauxe, Lisa
openaire   +2 more sources

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