Results 51 to 60 of about 4,431,213 (212)

Correlation of ignimbrites using characteristic remanent magnetization and anisotropy of magnetic susceptibility, Central Andes, Bolivia [PDF]

, 2013
Large ignimbrite flare-ups provide records of profound crustal modification during batholith formation at depth. The locations of source calderas and volumes and ages of the eruptions must be determined to develop models for the tectonomagmatic processes
De Silva, Shanaka L., Jicha, Brian R., Jimenez C., Nestor, Ort, Michael H., Singer, Bradley S.   +4 more
core   +1 more source

Secular variation and excursions of the Earth magnetic field during the Plio-Quaternary: New paleomagnetic data from radiometrically dated lava flows of the Colima volcanic complex (western Mexico)

Revista Mexicana de Ciencias Geológicas, 2018
Detailed rockmagnetic and paleomagnetic investigations were performed on selected lava flows from the Colima volcanic complex (CVC) located in the western sector of the Trans-Mexican Volcanic Belt. Reliable paleomagnetic directions were obtained from 21
Rafael García-Ruiz, Avto Goguitchaichvili, Miguel Cervantes-Solano, Abel Cortés-Cortés, Juan Morales-Contreras, Rafael Maciel-Peña, José Rosas-Elguera, José Luis Macías-Vázquez   +7 more
doaj   +1 more source

First archaeointensity reference paleosecular variation curve for South America and its implications for geomagnetism and archaeology – Corrigendum

Quaternary Research, 2020
Cite this article: Goguitchaichvili, A., Greco, C., Ruiz, R. G., Domingorena, L. P., Cejudo, R., Morales, J., Gogorza, C., Scattolin, C., Tarragó, M. 2020.
A. Goguitchaichvili, C. Greco, Rafael García Ruíz, Lucas Pereyra Domingorena, R. Cejudo, J. Morales, C. Gogorza, Cristina Scattolin, M. Tarragó   +8 more
semanticscholar   +1 more source

Hydrodynamic variations and human activities have influenced sediment fluxes in the pearl river delta since the late holocene

Frontiers in Earth Science, 2023
Climate change and human activity can both exert a role in the river discharge and sediment load in river deltas when the sea level remains relatively stable.
Xiaoqiang Yang, Shuang Wu, Shentang Shang, Yan Chen   +3 more
doaj   +1 more source

Revisiting the Jurassic Geomagnetic Reversal recorded in the Lesotho Basalt (Southern Africa)

, 2003
We carried out a detailed and continuous paleomagnetic sampling of the reversed to normal geomagnetic transition recorded by some 60 consecutive flow units near the base of the Lesotho Basalt (183  1 Ma).
Camps, Cox, Hoffman, John Thompson, Laj, Liliane Faynot, Michel Prévot, Mireille Perrin, Morgan, Neil Roberts, Pierre Camps, Prévot, Prévot   +12 more
core   +2 more sources

Evidence for geomagnetic excursions recorded in Brunhes and Matuyama Chron lavas from the trans‐Mexican volcanic belt [PDF]

, 2013
Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/99072/1/arar_methodology.pdfhttp://deepblue.lib.umich.edu/bitstream/2027.42/99072/2/jgrb50214 ...
Aguírre‐diaz, Gerardo J., Böhnel, Harald N., López‐martínez, Margarita, Michalk, Daniel M., Negendank, Jörg F. W., Nowaczyk, Norbert R., Ownby, Steven   +6 more
core   +1 more source

Testing statistical palaeomagnetic field models against directional data affected by measurement errors [PDF]

, 2006
International audienceIn a previous paper, Khokhlov et al. introduced a method to test the compatibility of so-called 'giant Gaussian process' (GGP) statistical models of the palaeomagnetic field against any palaeosecular variation database.
Bouligand, C., Hulot, Gauthier, Khokhlov, A.   +2 more
core   +4 more sources

Paleosecular variation of brunhes age lava flows from British Columbia, Canada [PDF]

Geochemistry, Geophysics, Geosystems, 2002
Brunhes age lava flows have been sampled for paleosecular variation studies from several volcanic fields of southern British Columbia (Silverthrone, Garibaldi Lake, Mt. Meager, Clearwater‐Wells Gray Park and Kelowna area). A total of 52 lava flows were sampled and 7 to 10 samples were drilled at each site. Previous radiometric studies indicate that the
Victoria Mejia, Rene W. Barendregt, Neil D. Opdyke   +2 more
openaire   +1 more source

Kinematics of Burial Remagnetizations in Fold‐and‐Thrust Belts: A Case Study From the South Pyrenean Foreland Basin (NE Spain)

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 4, April 2026.
Abstract This study investigates two burial‐related remagnetizations in the Jaca–Pamplona foreland basin (Southern Pyrenees): one with dual polarity and a positive reversals test, and another with only reverse polarity. These components, labeled C3 and C4 based on their mean unblocking temperatures, were identified from a paleomagnetic analysis of 142 ...
P. Calvín, E. Izquierdo‐Llavall, P. Sierra‐Campos, E. Beamud, M. J. Dekkers, R. Egli, A. Rodríguez‐Pintó, J. C. Larrasoaña, E. L. Pueyo   +8 more
wiley   +1 more source

Influence of Data Filters on the Position and Precision of Paleomagnetic Poles: What Is the Optimal Sampling Strategy?

Geochemistry, Geophysics, Geosystems, 2022
To determine a paleopole, the paleomagnetic community commonly applies a loosely defined set of quantitative data filters that were established for studies of geomagnetic field behavior. These filters require costly and time‐consuming sampling procedures,
Dieke Gerritsen, Bram Vaes, Douwe J. J. vanHinsbergen   +2 more
doaj   +1 more source