Results 111 to 120 of about 4,431,213 (212)

Louisville Seamount Trail: implications for geodynamic mantle flow models and the geochemical evolution of primary hotspots [PDF]

, 2011
The Louisville Seamount Trail is a 4300 km long volcanic chain that has been built in the past 80 m.y. as the Pacific plate moved over a persistent mantle melting anomaly or hotspot.
Anderson, L., Beier, C., Buchs, David M., Chen, L., Cohen, B., Deschamps, F., Dorais, M., Ebuna, D., Fitton, J., Fulton, P. M., Ganbat, E., Gee, J. S., Geldmacher, Jörg, Hamelin, C., Hanju, T., Hoshi, H., Kalnins, L., Kell, J., Koppers, Anthony A., Machida, S., Mahoney, J. J., Moriya, K., Nichols, A. R. I., Pressling, N. J., Rausch, S., Sano, S., Sylvan, J. B., Williams, R., Yamazaki, Toshitsugu   +28 more
core   +1 more source

Statistics of the geomagnetic secular variation for the past 5Ma [PDF]

A new statistical model is proposed for the geomagnetic secular variation over the past 5Ma. Unlike previous models, the model makes use of statistical characteristics of the present day geomagnetic field.
Constable, C. G., Parker, R. L.
core   +1 more source

Paleosecular Variation in Field Directions Due to Randomly Varying Gauss Coefficients.

Journal of geomagnetism and geoelectricity, 1997
Expressions are derived for the magnetic field directions produced by randomly varying Gauss coefficients. This approach was pioneered by Constable and Parker (1988), and followed by Kono and Tanaka (1995) and Kono and Hiroi (1996). The present treatment is a sequel to the latter two.
openaire   +2 more sources

A comprehensive paleomagnetic study from the last Plinian eruptions of Popocatepetl volcano: absolute chronology of lavas and estimation of emplacement temperatures of PDCs

Earth, Planets and Space, 2019
Three lava flows (Buenavista, Xalitzintla and Nealtican) and pyroclastic density currents (Lorenzo and Pink Pumice) from two Popocatepetl Plinian eruptions were sampled for paleomagnetic dating.
Nayeli Pérez-Rodríguez, Juan Morales, Avto Goguitchaichvili, Felipe García-Tenorio   +3 more
doaj   +1 more source

A detailed paleomagnetic and rock-magnetic investigation of the Matuyama-Bruhnes geomagnetic reversal recorded in tephra-paleosol sequence of Tlaxcala(Central Mexico)

Frontiers in Earth Science, 2015
Geomagnetic reversals are global phenomena, for about 50 years the paleomagnetists attempted to acquire as many detailed records as possible using the magnetic memory of sediments and lava flows.
Ana Maria Soler-Arechalde, Avtandyl eGoguitchaichvili, Ángel eCarrancho, Sergey eSedov, Cecilia Irene Caballero-Miranda, Beatriz eOrtega, Berenice eSolís, Juan Julio Morales Contreras, Jaime eUrrutia-Fucugauchi, Francisco eBautista   +9 more
doaj   +1 more source

Paleomagnetic study of the 30 ka Aira caldera-forming eruption and 60–45 ka Iwato pyroclastic flow deposits, southern Kyushu, Japan

Earth, Planets and Space
To constrain the age and duration of large-scale caldera-forming eruptions, we measured paleomagnetic directions of pyroclastic deposits from the 30 ka Aira caldera eruption sequence, and the 60–45 ka Iwato pyroclastic flow deposits around Aira caldera ...
Takeshi Hasegawa, Nobutatsu Mochizuki, Hidetoshi Shibuya, Ayumu Nishihara, Chie Kusu, Shohei Shibata, Makoto Okada, Kuniaki Nishiki, Yuki Sato   +8 more
doaj   +1 more source

Speleothem shape and natural remanent magnetization [PDF]

, 2017
Speleothems might be of interest for high-resolution reconstruction of the Earth’s magnetic field. However, little is known about the influence of speleothem morphologies on their Natural Remanent Magnetization (NRM).info:eu-repo/semantics ...
Font, E., Hillaire-Marcel, C., Ponte, J., Veiga-Pires, C.   +3 more
core  

Archaeomagnetic Insights into Pre-Hispanic Mayan Lime Production: Chronological Framework and Evidence of an Apparent 500-Year Hiatus in the Yucatán Peninsula

Quaternary
The Yucatán Peninsula, a key region of the ancient Maya civilization, has long presented challenges in establishing absolute chronological frameworks for its cultural practices.
Jocelyne Martínez Landín, Avto Goguitchaichvili, Soledad Ortiz, Oscar de Lucio, Vadim A. Kravchinsky, Rubén Cejudo, Miguel Cervantes, Rafael García-Ruiz, Juan Morales, Francisco Bautista, Ángel Gongora Salas, Iliana Ancona Aragon, Wilberth Cruz Alvardo, Carlos Peraza Lope   +13 more
doaj   +1 more source

Detecting dipolarity of the geomagnetic field in the paleomagnetic record. [PDF]

Proc Natl Acad Sci U S A, 2023
Lhuillier F, Shcherbakov VP, Sycheva NK.
europepmc   +1 more source

New paleomagnetic results from Neogene to Quaternary volcanic rocks of north of the Lake Van, Eastern Turkey. [PDF]

Sci Rep, 2023
Kayın S, İşseven T.
europepmc   +1 more source