Results 21 to 30 of about 110 (90)

Alteration's Control on Frictional Behavior and the Depth of the Ductile Shear Zone in Geothermal Reservoirs in Volcanic Arcs

Journal of Geophysical Research: Solid Earth, Volume 130, Issue 2, February 2025.
Abstract The majority of geothermal energy is produced in tectonically active volcanic‐arc regions due to their high geothermal gradients. Reservoirs in these settings are often stratified with smectite/kaolinite‐, illite‐, and chlorite‐rich zones, in order of increasing depth and temperature. Eighteen andesitic core and surface samples were taken from
Barnaby Fryer, Florian Jermann, Patricia Patrier, Bruno Lanson, Stanislav Jelavic, Gabriel Meyer, Stephen E. Grasby, Marie Violay   +7 more
wiley   +1 more source

Radiogenic Strontium‐ and Uranium‐Isotope Tracers of Water‐Rock Interactions and Hydrothermal Flow in the Upper Geyser Basin, Yellowstone Plateau Volcanic Field, USA

Geochemistry, Geophysics, Geosystems, Volume 25, Issue 10, October 2024.
Abstract Natural radiogenic isotopes (primarily 87Sr/86Sr) from hot springs in the Upper Geyser Basin of the Yellowstone Plateau volcanic field and associated rocks were used to evaluate groundwater flow patterns, water‐rock reactions, and the extent of mixing between various groundwater sources.
James B. Paces, Shaul Hurwitz, Lauren N. Harrison, Jacob B. Lowenstern, R. Blaine McCleskey   +4 more
wiley   +1 more source

Paleoseismology of the southwestern Morelia-Acambay fault system, central Mexico [PDF]

Geofísica Internacional, 2009
Fr The Morelia-Acambay Fault System (MAFS) consists of a sequence of E-W and NNE-SSW trending normal faults within the Trans-Mexican Volcanic Belt.
V. H. Garduño Monroy et al
doaj  

Hydro-geochemical and isotopic fluid evolution of the Los Azufres caldera geothermal field, Central Mexico

IOP Conference Series: Earth and Environmental Science, 2008
Hydrothermal alteration at Los Azufres geothermal held is mostly propylitic showing progressive dehydration with depth, and temperature increase. The evolution of this system is inferred to be related to deep liquid water, boiling when ascending through fractures connected to the surface.
E González-Partida, J C Viggiano-Guerra, R J Pérez   +2 more
openaire   +1 more source

Acidophilic sulphate‐reducing bacteria: Diversity, ecophysiology, and applications

Environmental Microbiology Reports, Volume 16, Issue 5, October 2024.
Acidophilic sulphate‐reducing bacteria (aSRB) perform dissimilatory sulphate reduction under low pH and high metal conditions. They play key roles in the sulphur and carbon cycles in natural acidic environments, emphasized by their interactions with other microbial groups, which create an intricate ecological network. Potential applications of aSRB and
Luis Felipe Valdez‐Nuñez, Andreas Kappler, Diana Ayala‐Muñoz, Idelso Jamín Chávez, Muammar Mansor   +4 more
wiley   +1 more source

Hydrothermal Signatures Discovered in Outcropping Rocks of the Los Humeros Geothermal Field (Mexico): A Geochemometric Exploration Case Study

Geofluids, Volume 2024, Issue 1, 2024.
Hydrothermal geochemical signatures in outcropping rock samples of the super‐hot Los Humeros geothermal field were discovered by using an integrated geochemometric study of the mobility of components (major oxides) and trace elements. Chemical component and element mobilities were determined by using the Gresens–Grant equation for mass balances.
D. Yáñez-Dávila, E. Santoyo, E. González-Partida, Kailasa Pandarinath, G. Santos-Raga, Sumit Mishra, Z. G. Gómez-Salgado, Chris Harris   +7 more
wiley   +1 more source

New SExI tools to evaluate the evolution and anthropic disturbance in geothermal fields: The case of Los Azufres geothermal field, México

Revista Mexicana de Ciencias Geológicas, 2010
La clasificación basada en el índice de exergía específica (SExI) propuesta por Lee (Lee, K.C., 1996, Proceedings, Twenty-First Workshop SGP-TR-151 on Geothermal Reservoir Engineering: Stanford, California, Stanford University, 85-92; Lee, K.C., 2001, Geothermics, 30(4), 431-442) ha sido escasamente utilizada en las ciencias geológicas como una manera ...
Hipólita Ramajo, Jordi Tritlla, Gilles Levresse, Enrique Tello-Hinojosa, Germán Ramírez, Héctor Pérez   +5 more
openaire   +2 more sources

Mineralogical, chemical, and Sr-Nd isotopic effects of hydrothermal alteration of near-surface rhyolite in the Los Azufres geothermal field, Mexico

Lithos, 2018
Abstract We present a combined mineralogical, chemical, and Sr-Nd isotopic study of hydrothermal alteration effects in near-surface Pleistocene rhyolite sampled at two distinct localities from the Los Azufres geothermal field (LAGF), Mexico. The alteration mineralogy of the near-surface rocks is dominated by silica polymorph minerals (cristobalite ...
Surendra P. Verma, Kailasa Pandarinath, Rajneesh Bhutani, Jitendra K. Dash   +3 more
openaire   +2 more sources

Mineralogical and geochemical effects due to hydrothermal alteration in the Los Azufres geothermal field, Mexico

Revista Mexicana de Ciencias Geológicas, 2018
To investigate the effects of hydrothermal alteration on the chemistry of volcanic rocks, we analyzed the whole rock chemical composition (major and trace elements, including rare-earth elements – REE) of two distinct portions of a drill well core sample
Ignacio S. Torres-Alvarado, Kailasa Pandarinath, Surendra P. Verma, Peter Dulski   +3 more
doaj  

New SExI tools to evaluate the evolution and anthropic disturbance in geothermal fields: The case of Los Azufres geothermal field, México

Revista Mexicana de Ciencias Geológicas, 2014
La clasificación basada en el índice de exergía específica (SExI) propuesta por Lee (Lee, K.C., 1996, Proceedings, Twenty-First Workshop SGP-TR-151 on Geothermal Reservoir Engineering: Stanford, California, Stanford University, 85-92; Lee, K.C., 2001 ...
Hipólita Ramajo, Jordi Tritlla, Gilles Levresse, Enrique Tello-Hinojosa, Germán Ramírez, Héctor Pérez   +5 more
doaj