Results 191 to 200 of about 3,470 (247)

On improving the selection of Thellier-type paleointensity data [PDF]

Geochemistry, Geophysics, Geosystems, 2014
The selection of paleointensity data is a challenging, but essential step for establishing data reliability. There is, however, no consensus as to how best to quantify paleointensity data and which data selection processes are most effective.
Greig A Paterson, Lisa Tauxe, Andrew J Biggin   +2 more
exaly   +2 more sources

Bulk magnetic domain stability controls paleointensity fidelity [PDF]

Proceedings of the National Academy of Sciences of the United States of America, 2017
Nonideal, nonsingle-domain magnetic grains are ubiquitous in rocks; however, they can have a detrimental impact on the fidelity of paleomagnetic records—in particular the determination of ancient magnetic field strength (paleointensity), a key means of ...
Greig A Paterson, Adrian R Muxworthy, Yuhji Yamamoto   +2 more
exaly   +2 more sources

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Rock Magnetic Characterization of Returned Samples From Asteroid (162173) Ryugu: Implications for Paleomagnetic Interpretation and Paleointensity Estimation

Journal of Geophysical Research: Planets, 2022
In this study, systematic rock magnetic measurements and saturation isothermal remanent magnetization (SIRM) paleointensity calibration experiments were conducted for the returned samples from C‐type asteroid (162173) Ryugu and two carbonaceous ...
M. Satô, Y. Kimura, S. Tanaka, T. Hatakeyama, S. Sugita, Tomoki Nakamuna, S. Tachibana, H. Yurimoto, T. Noguchi, R. Okazaki, H. Yabuta, H. Naraoka, K. Sakamoto, T. Yada, M. Nishimura, A. Nakato, Akiko Miyazaki, K. Yogata, M. Abe, T. Okada, T. Usui, M. Yoshikawa, T. Saiki, F. Terui, S. Nakazawa, Sei‐ichiro Watanabe, Y. Tsuda   +26 more
semanticscholar   +1 more source

Understanding the Role of Biogenic Magnetite in Geomagnetic Paleointensity Recording: Insights From Ontong Java Plateau Sediments

Journal of Geophysical Research: Solid Earth, 2022
Marine sediments can preserve continuous paleomagnetic intensity records. Different magnetic minerals may acquire remanent magnetizations differently, so that compositional variations of magnetic mineral assemblages in sediments may hinder extraction of ...
Jiaxi Li, T. Yamazaki, Y. Usui, T. Sagawa, Y. Kubota, J. Kuroda   +5 more
semanticscholar   +1 more source

Thellier-type paleointensity data from multidomain specimens

Physics of the Earth and Planetary Interiors, 2015
Identifying and excluding inaccurate paleointensity estimates that can arise from the effects of multidomain (MD) particles remains a key challenge for paleointensity studies.
Greig A Paterson, Andrew J Biggin, Mimi J Hill   +2 more
exaly   +2 more sources

A selective procedure for absolute paleointensity in lava flows

Geophysical Research Letters, 2010
International audienceWe present a compilation of experiments of absolute paleointensity using double heating protocols on very recent lava flows from Hawaii, La Réunion, the Canary islands and Santorini.
Emilio Herrero-Bervera, Julie Carlut, Despina Kondopoulou   +2 more
exaly   +2 more sources

Multimethod paleointensity results from a rapidly emitted upper Miocene lava flow sequence in São Vicente (Cape Verde): new data for the African record

Geophysical Journal International, 2022
We present new radiometric ages and full-vector paleomagnetic data from São Vicente Island, Cape Verde. Samples were obtained from a sequence of 11 nephelinitic flows.
M. Calvo Rathert, Á. Carrancho, J. Morales, N. Pérez-Rodríguez, V. Lebedev, A. Caccavari, N. Vegas, A. Gogichaishvili   +7 more
semanticscholar   +1 more source

Recording Fidelity of Relative Paleointensity Characteristics in the North Pacific Ocean

Journal of Geophysical Research: Solid Earth, 2021
North Pacific Ocean sediments are important archives of geomagnetic field and paleoenvironmental evolutions, yet late Quaternary sedimentary sequences in the North Pacific Ocean are less explored because of generally low sedimentation rates and the ...
C. Gai, Yanguang Liu, Xuefa Shi, Chunqing Sun, Xiaodong Jiang, Jianxing Liu, Yi Zhong, Qingsong Liu   +7 more
semanticscholar   +1 more source

Assessment of the usefulness of lithic clasts from pyroclastic deposits for paleointensity determination

Journal of Geophysical Research, 2010
Paleomagnetic and rock magnetic measurements were carried out on lithic clasts found within pyroclastic deposits to assess their potential for paleointensity determinations.
Greig A Paterson, Adrian R Muxworthy, Andrew P Roberts   +2 more
exaly   +2 more sources

Relative paleointensity correction of radiocarbon reservoir effect for lacustrine sediments on the northeast Tibetan Plateau

, 2021
An accurate chronological framework is vital if we are to use lacustrine sediments on the Tibetan Plateau (TP) for paleoclimate reconstruction. Radiocarbon (14C) dating is the most frequently used method for dating late Quaternary lacustrine sediments ...
He Ma, Yongli Wang, Chunsheng Jin, Zhifu Wei, Gen-xu Wang, Ting Zhang, Wei He, Xueyun Ma   +7 more
semanticscholar   +1 more source