Results 1 to 10 of about 1,645 (161)

Paleomagnetismo de rocas jurásicas del norte de Oaxaca y sus implicaciones tectónicas

Geofísica Internacional, 1988
Se reportan resultados paleomagnéticos para las formaciones jurásicas Yucuñuti y Caliza con Cidaris. Las regiones estudiadas de Tezoatlán y Tlaxiaco, Estado de Oaxaca, se encuentran en la entidad geológica denominada Terreno Mixteca, para la cual se han ...
D. J. Moran Zenteno, J. Urrutia-Fucugauchi, H. Böhnel, E. Gonzalez-Torres   +3 more
doaj   +2 more sources

Curie Temperatures and Emplacement Conditions of Pyroclastic Deposits From Popocatépetl Volcano, Mexico

Geochemistry, Geophysics, Geosystems, Volume 23, Issue 8, August 2022., 2022
Abstract Most pyroclastic deposits of Popocatépetl volcano were emplaced at high temperatures and have similar mafic to more evolved compositions, suggesting a long‐lived, interconnected magma environment. We performed a magnetic and microscopic study on different eruptive sequences <14 ky in age and found that temperature and field dependence of ...
K. Dudzisz, A. Kontny, L. M. Alva‐Valdivia   +2 more
wiley   +1 more source

First Full Vector Archeomagnetic Data From Northern Mexico

Geochemistry, Geophysics, Geosystems, Volume 22, Issue 10, October 2021., 2021
Abstract Several regional secular variation curves of the geomagnetic field have been proposed for Mexico over the last millennia. Despite a fairly large number of archeomagnetic data, these curves remain imprecise because of an uneven quality and geographic distribution, with a lack of data in Northern Mexico.
B. Tchibinda Madingou, M. Perrin, G. Hervé, A. Hernàndez Cardona, L. M. Alva‐Valdivia, R. Cruz Antillón   +5 more
wiley   +1 more source

Paleomagnetismo do maciço de Monchique (Sul de Portugal): implicações tectónicas [PDF]

, 2004
Gomes, C. S. R., Pereira, L. C. Gama
core   +3 more sources

Further Evidence of High Intensity During the Levantine Iron Age Anomaly in Southwestern Europe: Full Vector Archeomagnetic Dating of an Early Iron Age Dwelling From Western Spain

Journal of Geophysical Research: Solid Earth, Volume 126, Issue 9, September 2021., 2021
Abstract We report an archeomagnetic study from the Early Iron Age archeological site of Cerro de San Vicente (Salamanca, Spain). The studied materials were sampled from one roundhouse and its central fireplace, a surrounding burnt floor, and slags with a twofold objective.
N. García‐Redondo, M. Calvo‐Rathert, Á. Carrancho, A. Goguitchaichvili, E. Iriarte, A. Blanco‐González, M. J. Dekkers, J. Morales‐Contreras, C. Alario‐García, C. Macarro‐Alcalde   +9 more
wiley   +1 more source

Significance of Northern Andes Terrane Extrusion and Genesis of the Interandean Valley: Paleomagnetic Evidence From the “Ecuadorian Orocline”

Tectonics, Volume 40, Issue 7, July 2021., 2021
Abstract GPS data suggest that the NW South America corner forms a semi‐rigid block drifting NE‐ward along the regional dextral strike‐slip faults that bound an oceanic terrane accreted in Late Cretaceous times to W Ecuador and Colombia. However, the relevance of both strike‐slip versus thrust tectonics during Cenozoic times and their relation with ...
Gaia Siravo, Fabio Speranza, Maurizio Mulas, Vincenzo Costanzo‐Alvarez   +3 more
wiley   +1 more source

Revisión de datos paleomagnéticos de flujos de lava asociados al Campo Volcánico Michoacán Guanajuato: implicaciones sobre el comportamiento del campo magnético terrestre durante el Plio-Cuaternario

Revista Mexicana de Ciencias Geológicas, 2021
La disponibilidad de edades radiométricas para el Campo Volcánico Michoacán-Guanajuato permite obtener un registro detallado de las variaciones del campo magnético de la Tierra durante los últimos 5 Ma. En el presente trabajo, analizamos 112 direcciones
Ulises Díaz-Ortega, Rafael García-Ruiz, Miguel Cervantes-Solano, Avto Goguitchaichvili, Rafael Maciel-Peña, Juan Morales-Contreras, Rubén Cejudo-Ruiz   +6 more
doaj   +1 more source

Methods in rock magnetism and palaeomagnetism / D.W. Collinson

Geofísica Internacional, 1984
El desarrollo de las investigaciones en paleomagnetismo y magnetismo de rocas ha estado acompafiado y basado en el desarrollo de instrumentos y tecnicas. Este libra del Dr. D. W.
J. Urrutia Fucugauchi
doaj   +1 more source

A simple, alternative presentation of paleomagnetic demagnetization data

Geofísica Internacional, 1999
La mayoría de los artículos de investigación en paleomagnetismo y magnetismo de rocas publicados desde 1967, usan diagramas de componentes vectoriales (conocidos como diagramas de Zijderveld) para describir e investigar la estabilidad direccional y la ...
Avto Goguitchaichvili
doaj   +1 more source

Chicxulub crater post-impact hydrothermal activity – evidence from Paleocene carbonates in the Santa Elena borehole

Geofísica Internacional, 2010
Los cráteres de impacto se caracterizan por sistemas hidrotermales activos; particularmente en aquellos formados en ambientes marinos, en los cuales los procesos convectivos incluyen fluidos hidrotermales y agua de mar.
J. E. Escobar-Sanchez, Jaime Urrutia-Fucugauchi   +1 more
doaj   +1 more source