Results 101 to 110 of about 188 (129)

Chemical Variations in Chlorite at the Los Humeros Geothermal System, Mexico

Clays and Clay Minerals, 1998
AbstractThe chemical composition of hydrothermal chlorite was determined by means of more than 200 electron microprobe analyses (EMPA) in almost all of the 70 chlorite-bearing samples taken from 5 boreholes in a study of the active geothermal system of Los Humeros, Mexico.
Raymundo G. Martínez-Serrano, Michel Dubois   +1 more
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Chemical variations in hydrothermal minerals of the Los Humeros geothermal system, Mexico

Geothermics, 2002
The Los Humeros geothermal system is composed of more than 2200 m of Quaternary altered volcanic rocks and an underlying Cretaceous sedimentary sequence. The low salinity of the fluids discharged at present (Na+ and Cl− concentrations 1800 m). Petrographic examination of cuttings from five wells and temperature data indicate at least two stages of ...
exaly   +2 more sources

The shallow structure of Los Humeros and Las Derrumbadas geothermal fields, Mexico

Geothermics, 1987
Abstract Los Humeros caldera and Las Derrumbadas rhyolitic domes located in the State of Puebla (Mexico) are being extensively studied by Comision Federal de Electricidad (CFE) to assess the geothermal potential of that area. Both geothermal sites have been locally studied with geological, geochemical and geophysical methods.
JoséOscar Campos-Enriquez, Victor Hugo Garduño-Monroy   +1 more
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Numerical simulations to study the geodynamic origin of Los Humeros Volcanic Field in Mexico

2020
<p>Los Humeros Volcanic Field (LHVF) represents one of the key volcanic calderas in Mexico. Nowadays, LHVF is the third largest geothermal field in Mexico in terms of energy output, with an installed capacity of 94 MWe. The caldera is about 21 by 15 km wide and is located in the Serdán Oriental basin, east of the ...
Andrés David Bayona Ordóñez, Vlad Constantin Manea   +1 more
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The GEMex project: Developing Los Humeros (Mexico) as a Superhot Geothermal Site

2021
The GEMex project is a Mexican-European research cooperation on developing concepts for the use of superhot and engineered geothermal systems (i.e., Los Humeros and Acoculco) for power generation. Key focus in the first stage of the project is the confirmation and characterization of a superhot geothermal reservoir, which is expected in the deeper ...
Egbert Jolie E, GutiérrezNegrín LC, Kieling K, Liotta D, Arango Galván C, Hersir GP, Benediktsdóttir A, Deb P, Aragón Aguilar A, Thorbjörnsson IO, Contini M, Schill E, Toledo Zambrano TA, Gaucher E, Kruszewski M, Lelli M, Muller J, López Hernández A, Bruhn D, Calcagno P, GarduñoMonroy VH, van Wees JD, the GEMex team   +22 more
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Seismic models of the Los Humeros caldera (Mexico) using the GEMEX project data

2020
<p>In the framework of the GEMEX project (cooperation between Europe and Mexico for geothermal development), a dense network of 45 stations was deployed in 2017-2018 in the Los Humeros caldera, Mexico.</p><p>Thanks to this network an intense local seismic activity has been recorded in the geothermal ...
Marco Calò, Angel Figureoa Soto, Stephani Cruz-Hernandez, Ivan Granados Chavarría, Brenda De la Rosa, Joel Angulo Carrilo, Tania Toledo, Emmanuel Gaucher, Philippe Jousset   +8 more
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Hydrothermal alteration and fluid inclusion geothermometry of los humeros geothermal field, Mexico

Geothermics, 1989
Abstract The Los Humeros geothermal field, located in Puebla State, Mexico, occurs in a caldera; drillholes to 3000 m depth encountered a sequence of Quaternary lavas and pyroclastic rocks that range in composition from rhyolite to basalt but are dominantly andesitic. These rest upon the local basement comprising limestone and siltstone of Cretaceous
R.M. Prol-Ledesma, P.R.L. Browne
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Geochemistry of boron in fluids of Los Humeros and Los Azufres hydrothermal systems, Mexico.

2010
Separated water from geothermal wells of high-temperature geothermal fields Los Humeros and Los Azufres in Mexico are unusually rich in boron. According to the isotopic composition, boron in both fields has magmatic origin. Since the Los Humeros fluids, in contrast to Los Azufres, do not show any correlation between B and Cl and have Cl/B ?
RomeroBernard R, Taran Y, Pennisi M
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Geochemical evidence for a lithospheric source for magmas from Los Humeros caldera, Puebla, Mexico

Chemical Geology, 2000
Abstract This study reports new geochemical and Sr–Nd–Pb radiogenic isotope data on hy-normative Quaternary basaltic to rhyolitic volcanic rocks as well as two samples of Mesozoic to Palaeozoic intrusive igneous rocks from Los Humeros caldera (LHC), located in the eastern part of the Mexican Volcanic Belt (MVB).
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Alkali and alkaline earth element geochemistry of Los Humeros Caldera, Puebla, Mexico

Journal of Volcanology and Geothermal Research, 1984
Abstract Results of the measurements of alkali (K, Rb and Cs) and alkaline earth (Ba and Sr) elements on seven pre-caldera and twenty post-caldera samples of Los Humeros volcanics (Pliocene to Recent) are described. These data are interpreted in terms of the known solid-liquid partition coefficients.
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