Repositorio Digital Sernageomin
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Evaluación de peligro de remoción en masa en un tramo de la ruta T-577, sector Chabranco, comuna de Futrono, región de Los Ríos
No full textInforme Técnico -- Unidad Ejecutora: Dirección Regional de Los Ríos, Valdivia17 p
Estado de las intervenciones de laderas en Villa El Sol y de las remociones en masa en Playas Grande y Chica en Niebla - comuna de Valdivia, región de Los Ríos
No full textInforme Técnico -- Unidad Ejecutora: Dirección Regional de Los Ríos, Valdivia46 p
Evaluación de peligro de remoción en masa en estero Las Trancas, ruta T-55, comuna de Futrono, región de Los Ríos
No full textInforme Técnico -- Unidad Ejecutora: Unidad de Geología Regional, Dirección Regional de Los Ríos, Valdivia18 p
Revisión y actualización de la estratigrafía y geocronología del Pérmico-Triásico en la cordillera de la Costa de la región de Coquimbo (31-32° S), Chile
Get PDFInforme Registrado IR-24-11794 p
Morphometry of a Central Andean basin, San Juan, Argentina : Assessment of conditional factors to the occurrence of flash floods
No full textThe present work aims to determine flash flood occurrence prone areas, in the Jáchal river basin, San Juan Province, Argentina. The Jáchal river basin covers ~29,000 km2 and has a perimeter of ~2,400 km, while the eponymous river extends for nearly 570 km. It is a 7th order basin according to Strahler’s classification, subdivided into four 6th order sub-basins. Various morphometric basin characteristics are analysed and some basic and derived parameters are calculated. These calculations allow predicting the basin behaviour due to heavy rainfall, which translates into large volumes of water with peak flows capable of generating significant flash floods. The basin has a torrential character, so in case of intense rainfall the terrain conditions would contribute to increasing the flow of the main rivers. An inventory of alluvial deposits was carried out and their relationship with the conditioning variables of the terrain was evaluated. At the confluence zones, the river tributaries show more intense overflows than the main collector. This promotes the generation of flash floods. The areas most likely to be affected by flash flood events correspond to low-humidity, east-facing slightly rough terrains, with slopes of up to 15° as well as low-lying flood plain sectors, and at the confluence of tributaries with the main rivers. Populated centres and provincial and national routes are prone to be affected by alluvial events in the study area.pp.194-21
Evaluación de remoción en masa en sector de Túnel Farellones, comuna de Aysén, región de Aysén del General Carlos Ibáñez del Campo
No full textInforme Técnico -- Unidad Ejecutora: Dirección Regional de Aysén14 p
PROFESOR FERNANDO HENRÍQUEZ BARRIENTOS† (1942-2024) : Cinco décadas de investigación y docencia
No full textpp.421-42
Visita a ruta G-25 sector El Tinoco, comuna de San José de Maipo, Región Metropolitana
No full textInforme Técnico -- Unidad Ejecutora: Unidad de Asistencias Técnicas y Emergencias Geológicas, Santiago13 p
Evaluación de la susceptibilidad de remoción en masa en ladera norte de playa Cheuque Comuna de Mariquina, Región de Los Ríos
No full textInforme Técnico -- Unidad Ejecutora: Dirección Regional de Los Ríos, Valdivia17 p
Old and modern volcanic depictions as evidence of communities-volcanoes mutualism in Colombia
Get PDFStudying the different ways in which the concept of volcanism is represented is crucial in the understanding of communities’ perception of the volcanic phenomena. In this contribution, 129 modern (2021-2023) depictions of volcanoes in Colombia between latitudes 0.82 and 5.96° N are described and classified into different contexts of use. Prehispanic depictions of volcanism are investigated in rock art sites (3 pictographs and 33 petroglyphs), and 15 distinct mythical narratives compiled and confirmed through interviews in the State of Nariño. We suggest that many of the rock art sites contain motifs that are reminiscent of the idea of volcanism, and that many of the folk tales include allusions to the volcanic concept. By collating the information contained in modern and older depictions, a link is established with the reality of the volcanic phenomena that shows how mutualism takes root between communities and volcanoes. The beneficial aspects derived from this relationship influence the perception of volcanic hazards in the region.pp.86-16