Results 51 to 60 of about 2,331 (171)

New remains of Titanochelon richardi (Testudines, Testudinidae) from the Upper Miocene of the Vallès‐Penedès Basin: taxonomic and phylogenetic implications

open access: yesPapers in Palaeontology, Volume 11, Issue 6, November/December 2025.
Abstract The alpha‐taxonomy of continental giant tortoises (Testudinidae, Titanochelon) from the European Neogene is far from settled, which has implications for inferring their phylogenetic relationships. The diagnosis of the type species (Titanochelon bolivari) is dubious because it considered Titanochelon richardi as a junior subjective synonym ...
Kelly Ann Vega‐Pagán   +6 more
wiley   +1 more source

Mosaic morphology in Podocnemididae revealed by a new turtle from the Middle Miocene La Venta Biome, Colombia

open access: yesPapers in Palaeontology, Volume 11, Issue 6, November/December 2025.
Abstract A new genus and species of podocnemidid turtle, Shakiremys colombiana, is described here from the Middle Miocene La Venta Biome, located in south‐central Colombia. The new taxon is represented by two specimens: one consisting of a complete skull and articulated shell, and the other of an articulated shell only.
Edwin‐Alberto Cadena   +4 more
wiley   +1 more source

Hydrogeological model of Los Humeros: hydrothermal processes at the regional scale

open access: yes, 2018
This report is prepared by the BRGM (Bureau de Recherches géologiques et Minières) of France as deliverable 3.3 of work package 3 for GEMex (Grant Agreement No. 727550). The report describes the regional hydrogeological model of Los Humeros. Numerical simulations were carried out to model the geothermal system through the resolution of mass flow and ...
Les Landes, Armandine Antoine   +3 more
openaire   +2 more sources

Difracción de rayos X en la caracterización de especies arcillosas: un caso de aplicación en el pozo H29 del Campo de Los Humeros, Pue.

open access: yesGeofísica Internacional, 1993
Los filosilicatos formados como producto de la alteración hidrotermal en zonas geotérmicas activas son de gran interés, ya que su ocurrencia es un reflejo de la temperatura y presión del medio.
Georgina Izquierdo-M.
doaj   +1 more source

Sassolite Precipitation at the Restless Campi Flegrei Volcano in Italy Points to Hydrothermal Flashing by Deep Boron‐Rich Brines

open access: yesJournal of Geophysical Research: Solid Earth, Volume 130, Issue 10, October 2025.
Abstract Studying the behavior of dormant volcanoes is a major challenge in volcanology. Here, we conducted a 10‐year survey of hydrothermal mineralization at Campi Flegrei, an active volcano near Naples in Italy, which last erupted in 1538. Our survey revealed a significant output of boric acid at the hydrothermal sulfate discharge area of Pisciarelli,
M. Piochi   +3 more
wiley   +1 more source

Análisis geoquímico-isotópico de las especies carbónicas del fluido geotérmico de los Humeros, Puebla, México

open access: yesGeofísica Internacional, 1993
Evidencias geoquímicas muestran que los fluidos del yacimiento de Los Humeros presentan un exceso de vapor con mezcla de un fluido agresivo proveniente de un segundo yacimiento y sólo los pozos someros como el H-1 no son afectados por tal fenómeno. Datos
E. González-Partida   +2 more
doaj   +1 more source

Santa Cecilia, una obra que busca su autor y su fecha de nacimiento [PDF]

open access: yes, 2000
Con motivo de la restauración de los cuadros de la Capilla de los Humeros, de Sevilla, llevada a cabo en 1999, surge la necesidad de investigar la historia de estas obras. El presente estudio se refiere a una de ellas: Santa Cecilia.
Albarrán Fernández, José Vicente   +1 more
core  

Interaction between Injection Points during Hydraulic Fracturing

open access: yes, 2012
We present a model of the hydraulic fracturing of heterogeneous poroelastic media. The formalism is an effective continuum model that captures the coupled dynamics of the fluid pressure and the fractured rock matrix and models both the tensile and shear ...
Adachi   +31 more
core   +1 more source

Antebrachial conformation in Cocker Spaniels with and without humeral intracondylar fissure

open access: yesVeterinary Surgery, Volume 54, Issue 4, Page 777-787, May 2025.
Abstract Objective To objectively quantify antebrachial morphology from computed tomography (CT) scans of Cocker Spaniels with and without humeral intracondylar fissure (HIF). Study design Retrospective imaging. Methods Three‐dimensional (3D) rendered CT scans of the antebrachii of Cocker Spaniels with HIF (Group 1), or without HIF but with medial ...
Neil J. Burton   +2 more
wiley   +1 more source

Crustal structure variations in south-central Mexico from receiver functions [PDF]

open access: yes, 2019
Mexico has a complex geological history that is typified by the distinctive terranes that are found in the south-central region. Crustal thickness variations often correlate with geological terranes that have been altered by several processes in the past,
Cabral-Cano, Enrique   +4 more
core  

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