Results 21 to 30 of about 36,441 (124)

Forecasting volcanic ash dispersal and coeval resuspension during the April-May 2015 Calbuco eruption [PDF]

open access: yes, 2016
Atmospheric dispersion of volcanic ash from explosive eruptions or from subsequent fallout deposit resuspension causes a range of impacts and disruptions on human activities and ecosystems.
Baez, Walter Ariel   +9 more
core   +1 more source

Middle to Late Miocene Contractional Deformation in Costa Rica Triggered by Plate Geodynamics [PDF]

open access: yes, 2017
Contractional deformation in Costa Rica is usually attributed to the subduction of the aseismic Cocos Ridge. In this work, we review the evidences for contraction in the middle to late Miocene, prior to the arrival of the Cocos Ridge at the Middle ...
Cascante, Monserrat   +8 more
core   +1 more source

Integration of geophysical information with geological cartography for mineral resources research and other applications in Colombia: examples from the Serranía de San Lucas, Antioquia Batholith and eastern Amazonia

open access: yesBoletín Geológico, 2022
La información geofísica aerotransportada es una herramienta para la interpretación de características geológicas. Las variaciones que se observan en los datos magnéticos y gamma espectrométricos aerotransportados son utilizados, principalmente, como ...
Norma Marcela Lara   +9 more
doaj   +1 more source

El volcanismo jurásico superior de la Formación Río Damas-Tordillo (33°-35,5°S): antecedentes su sobre petrogénesis, cronología, proveniencia e implicancias tectónicas [PDF]

open access: yes, 2014
Los depósitos continentales y volcánicos de la Formación Rio Damas-Tordillo, Jurásico Superior, representan un período restringido de sedimentación continental dentro del registro mayormente marino de la Cuenca Neuquina.
Calderón, Sergio   +7 more
core   +2 more sources

La caverna del Nus, departamento de Antioquia

open access: yesBoletín Geológico, 1968
La Caverna del Nus está situada en lo alto de un peño} de mármol de bajo grado de metamorfismo, entre los ríos Nus y Samaná. El mármol está delimitado hacia el este y el oeste por fallas mayores.
Tomas Feininger, Hernan Gómez G.
doaj   +1 more source

Hacia una evolución de la concepción de analogía : aplicación al análisis de libros de texto [PDF]

open access: yes, 2005
Las analogías han contribuido a la construcción y desarrollo del conocimiento científico y a su posterior comunicación, por lo que se consideran fundamentales en el proceso de enseñanza-aprendizaje de las ciencias.
Fernández González, José   +2 more
core   +2 more sources

Late Cambrian acritarchs from the Santa Rosita Formation: implications for the Cambrian-Ordovician boundary in the eastern Cordillera of northwest Argentina [PDF]

open access: yes, 2003
Marine phytoplankton from the Late Cambrian are described for the first time in the Eastern Cordillera of northwest Argentina. The acritarch assemblage was recovered from an offshore lower mudstone unit towards the base of the Casa Colorada Member (Santa
Buatois, Luis Alberto   +2 more
core  

Diversity modulates above‐ground productivity in response to disturbances: The case of Iberian forests

open access: yesJournal of Ecology, Volume 113, Issue 12, Page 3605-3621, December 2025.
We analysed whether forest productivity responses to disturbances were modulated by structural and functional diversity, as well as by functional dominance, and whether these responses vary among functional groups. Forest diversity can mitigate the negative effects of disturbances on productivity.
Pedro Rebollo   +7 more
wiley   +1 more source

Neighboring Segments Control on Earthquake Recurrence Patterns: Insights From Scaled Seismotectonic Models

open access: yesGeophysical Research Letters, Volume 52, Issue 18, 28 September 2025.
Abstract Understanding the factors that influence the spatial and temporal rupture history of large subduction earthquakes is essential for seismic hazard assessment. In this study, we focus on one candidate: the interaction between neighboring asperities of different sizes and normal loads.
Elvira Latypova   +5 more
wiley   +1 more source

Los primeros geólogos de YPF en Comodoro Rivadavia y sus aportes en la región del Golfo San Jorge

open access: yesRevista del Museo de La Plata, 2016
Entre 1908 y 1922 Stappenbeck, Schiller, Keidel, Wichmann y Windhausen trabajaron en la zona por cuenta de la Dirección de Minas y Geología. En 1922 se creó Yacimientos Petrolíferos Fiscales, YPF, y se nombró al frente de la División Geología al italiano
Jorge José Hechem
doaj   +1 more source

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