Results 11 to 20 of about 229 (114)

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

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

Crustal structure of the Colima rift, western Mexico: gravity models revisited

Geofísica Internacional, 1999
Se reportan resultados del análisis de la estructura del rift de Colima a partir del modelado de dos perfiles de gravedad orientados ESE-WNW con longitudes de 250 km y 280 km, localizados en el sector sur (SCR) y central (CCR) del graben.
J. Urrutia-Fucugauchi, J. H. Flores-Ruiz, W. L. Bandy, C. A. Mortera-Gutiérrez   +3 more
doaj   +1 more source

Volcano-sedimentary stratigraphy in the Valsequillo Basin, Central Mexico inferred from electrical resistivity soundings

Geofísica Internacional, 2014
La estratigrafía de la secuencia volcano-sedimentaria en la cuenca de Valsequillo, Puebla es investigada por medio de sondeos eléctricos de resistividad.
Jaime Urrutia-Fucugauchi, Alfonso Trigo-Huesca, Eloísa Téllez-García, Ligia Pérez-Cruz, Fabiola Méndez-Rivero, Valsequillo Project Team   +5 more
doaj   +1 more source

Estudio de minerales de fierro y titanio y magnetismo de rocas en el distrito ferrífero El Encino, Jalisco, México

Geofísica Internacional, 1993
Sc presentan resultados de un estudio mineralógico-paleomagnético de la mayoría de las unidades volcano-sedimentarias y de mineralización de hierro en el Distrito Minero de El Encino, Jalisco. Los principales objetivos del estudio son: (a) investigar las
L. M. Alva Valdivia, J. J. Vega Carrillo, J. Urrutia Fucugauchi   +2 more
doaj   +1 more source

Paleomagnetic and tectonic constraints on the Late Cretaceous to early Tertiary northward translation of the Baja California peninsula

Geofísica Internacional, 1990
Los resultados paleomagnéicos del Cretaceo de Baja California y parte de California indican consistentemente un movimiento al norte y una rotación positiva de la region con respecto al cratón de Norteamérica antes de la apertura del Golfo de California ...
J. T. Hagstrum, P. E. Filmer
doaj   +1 more source

A palaeomagnetic study of Syrian volcanic rocks of Miocene to Holocene age

Geofísica Internacional, 1999
Rocas volcánicas del Mioceno y más jóvenes de varias localidades de Siria muestran polaridades normales y reversas después de desmagnetización térmica.
J. M. Abou-Deeb, M. M. Otaki, D. H. Tarling, A. L. Abdeldayem   +3 more
doaj   +1 more source

Communication: Further paleomagnetic evidence for a possible tectonic rotation of Mexico

Geofísica Internacional, 1976
Existe un déficit de datos paleomagnéticos sobre rocas de México (Pal y Urrutia, 1977). En un estudio paleomagnético sobre rocas terciarias de Jalisco (Urrutia y Pal, 1977) se ha planteado la posibilidad de una rotación tectónica de México con respecto a
Jaime Urrutia Fucugauchi, Surendra Pal
doaj   +1 more source