Results 11 to 20 of about 43,016 (162)

The Viscosity of Carbonate‐Silicate Transitional Melts at Earth's Upper Mantle Pressures and Temperatures, Determined by the In Situ Falling‐Sphere Technique

open access: yesGeophysical Monograph Series, Page 223-236., 2020

This book is Open Access. A digital copy can be downloaded for free from Wiley Online Library.

Explores the behavior of carbon in minerals, melts, and fluids under extreme conditions

Carbon trapped in diamonds and carbonate-bearing rocks in subduction zones are examples of the continuing exchange of substantial carbon ...
Vincenzo Stagno   +5 more
wiley  

+2 more sources

Levantamento gravimétrico na Região de Franca - SP e Delfinópolis - MG, no reconhecimento e delimitação de feições estruturais (Zonas de Sutura)

open access: yesGeologia USP. Série Científica, 2007
Este trabalho apresenta o resultado do levantamento geofísico realizado no nordeste do estado de São Paulo e sudoeste do estado de Minas Gerais em uma área de 80 por 97,5 km localizada a sudoeste do Brasil.
Maximilian Fries   +3 more
doaj   +1 more source

Mexican volcanic belt: present state of knowledge and unsolved problems

open access: yesGeofísica Internacional, 1987
Primeramente, se presenta una breve reseña de los estudios disponibles (hasta 1984) sobre el Cintur6n Volcánico Mexicano (CVM). Esto se sigue con una s1ntesis de los resultados mas importantes de los trabajos incluidos en el Volumen Especial sobre el CVM
S. P. Verma
doaj   +1 more source

Explosive volcanism: inception, evolution and hazard / National Research Council, Geophysics Study Committee

open access: yesGeofísica Internacional, 1989
Este libro sobre "Volcanismo Explosivo" está formado por una colección de trece capítulos o artículos que, desde diferentes enfoques y disciplinas discuten uno de los fenómenos volcánicos de más alta peligrosidad.
J. Urrutia Fucugauchi   +1 more
doaj   +1 more source

The 2007 Azores earthquakes: A case of triggering? [PDF]

open access: yes, 2009
On 5 April (Mw=6.3) and 7 April 2007 (Mw=6.1 ) two earthquakes occur at the Formigas Islets (Azores Islands), both with same epicenter and felt (I=V/VI MSK) in S. Miguel Island.
Bezzghoud, M   +3 more
core  

Evidence From Microscopy and U–Pb Geochronology as a Clue to the Influence of the Cretaceous Magmatism in the Diagenesis of Pre‐Salt Carbonate Reservoirs in the Santos Basin (Brazil)

open access: yesGeological Journal, EarlyView.
Carbonates from Santos Basin revealed U–Pb ages correlated with basalt ages (A), suggesting that they were formed during magmatic events. These events placed hot CO2 in the reservoir, which, when mixed with carbonate‐rich cold water (B), led to thermal convection, enabling the formation of the U contained in the carbonates.
Marco António Ruivo de Castro e Brito   +8 more
wiley   +1 more source

Gamma-ray spectrometry applied in the identification of potential acid mine drainage generation zones in waste rock pile with uranium ore and associated sulfides (caldas, Brazil)

open access: yesGeofísica Internacional, 2022
La minería de metales modifica profundamente la dinámica ambiental local y produce grandes volúmenes de roca y residuos, los cuales se espera sean eliminados cuidadosamente para evitar el deterioro del suelo, el agua y el medio ambiente.
Anna Carolina Gastmaier Marques   +3 more
doaj   +1 more source

SEISMO-ELECTROMAGNETIC PHENOMENA IN TECTONICALLY ACTIVE REGIONS [PDF]

open access: yes, 2010
This work presents a research plan that aims to monitor seismo-electromagnetic signals in seismic active regions. Two effects will be considered: electromagnetic field emissions and radio broadcastings.
Bezzeghoud, M.   +9 more
core  

The First Archaeomagnetic Age at Tiwanaku and Implications for Dating Andean Metallurgical Furnaces

open access: yesArchaeometry, EarlyView.
ABSTRACT This paper presents the first archaeomagnetic dating at Tiwanaku (Andean Altiplano). We compared the geomagnetic field values recorded by a metallurgical furnace against an updated SHAWQ2k‐SH global model and a regional intensity curve, both of which include, for the first time, high‐quality intensity data from the Southern Hemisphere. Results
Judit del Río   +6 more
wiley   +1 more source

A preliminary thermal model of the mexican seismovolcanic belt as a result of subduction

open access: yesGeofísica Internacional, 1979
Se desarrolla un modelo término de la faja volcánica mexicana. Los datos geofísicos y los datos geológicos se toman en cuenta en el desarrollo de este modelo (generación de calor, flujo de calor, volcanismo, patrón de falla y parámetros geométricos de la
E. A. Lubimova, RM. Prol
doaj   +1 more source

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