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Relative paleointensity estimates from magnetic anisotropy: Proof of concept
Earth and Planetary Science Letters, 2019Abstract Relative paleointensity data from sedimentary rocks play an important role to decipher the workings of the geodynamo and to correct for atmospheric cosmogenic radionucleide production, so it is important to understand how sediments acquire remanent magnetizations and to better assess the quality of relative paleointensity data.
Stuart A. Gilder +3 more
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A middle Miocene relative paleointensity record from the Equatorial Pacific
Earth and Planetary Science Letters, 2013Abstract We present a high-resolution magnetostratigraphy and relative paleointensity (RPI) record derived from the upper 85 m of IODP Site U1336, an Equatorial Pacific early to middle Miocene succession recovered during Expedition 320/321. The magnetostratigraphy is well resolved with reversals typically located to within a few centimeters resulting
Christian Ohneiser +5 more
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Relative paleointensity of the geomagnetic field during the Brunhes Chron
Earth and Planetary Science Letters, 1995Abstract We conducted a paleomagnetic study of four sediment cores taken from different regions in the low latitudes of the Pacific Ocean in order to recover relative paleointensity variations during the Brunhes chron. Three cores have good age control from oxygen isotope stratigraphy.
Toshitsugu Yamazaki +2 more
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A tephra-based approach to calibrating relative geomagnetic paleointensity stacks to absolute values
Earth and Planetary Science Letters, 2021Abstract Relative paleointensity (RPI) stacks provide a relative, global paleointensity variation, which reflects variations in the geocentric axial dipole moment. Previous calibrations of an RPI stack rely on adjusting a mean RPI to a mean of virtual axial dipole moments (VADMs), which are selected from absolute paleointensity (API) databases.
Nobutatsu Mochizuki +7 more
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On the possibility of obtaining relative paleointensities from lake sediments
Earth and Planetary Science Letters, 1976Abstract Relative paleointensities are obtained from a 6-m sediment core from Lake St. Croix, Minnesota, spanning the time range from 445 to 1740 years B.P. To normalize the natural remanent magnetization (NRM) for variations in the magnetic content, a laboratory-induced remanence is chosen, whose alternating field (AF) demagnetization curves most ...
Shaul Levi, Subir K. Banerjee
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Reliability of Relative Paleointensity Recorded in Chinese Loess–Paleosol Sediments
Acta Geologica Sinica - English Edition, 2012AbstractA detailed paleomagnetic and rock‐magnetic investigation spanning loess L7 to paleosol S8 has been carried out at the Baoji and Xifeng sections. Results of anisotropy of magnetic susceptibility confirm that the studied loess–paleosol sediments retain primary sedimentary fabrics.
YANG Tianshui +5 more
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Wavelet analysis of relative geomagnetic paleointensity at ODP Site 983
Earth and Planetary Science Letters, 2000Abstract We performed spectral analysis of the record of relative geomagnetic paleointensity obtained at ODP Site 983, covering the time interval 0–1.1 Ma. The results confirm the presence of significant power at frequencies corresponding to the earth orbital parameters (eccentricity, obliquity, precession).
Yohan Guyodo +2 more
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Relative paleointensity data from the late Holocene deltaic sediments in Korea
Geosciences Journal, 2015A first quasi-successive paleosecular variation data since ∼5.5 kya, including magnetic inclination and relative geomagnetic field intensity variation were obtained from a 55 m-long sediment core in the Nakdong River delta, southeastern Korean Peninsula.
Seungwon Shin +3 more
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Geomagnetic relative paleointensity chronostratigraphy of sediment cores from the Okhotsk Sea
Palaeogeography, Palaeoclimatology, Palaeoecology, 2010Abstract We conducted a paleomagnetic study of three piston cores from the central Okhotsk Sea to enable inter-core correlation and age estimation using relative paleointensity of the geomagnetic field, which can provide the basis for paleoceanographic studies in this area. The cores are composed of diatom-bearing dark olive gray silty clay. Magnetic
Seiko Inoue, Toshitsugu Yamazaki
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A relative geomagnetic paleointensity stack from Ontong‐Java Plateau sediments for the Matuyama
Journal of Geophysical Research: Solid Earth, 1999We present a stack of geomagnetic paleointensity estimates for the Matuyama Chron (0.778–2.582 Ma). Sedimentary magnetizations from 4 Ocean Drilling Program (ODP) cores from the Ontong‐Java Plateau (OJP) are analyzed with thermal techniques. Thellier‐Thellier experiments are used to determine magnetic properties and indicate that a thermal treatment to
Yvo S. Kok, Lisa Tauxe
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