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1
artículo
The climatologically changes that involve the global heating, have produced in the last decades a great reduction of glacial areas on earth, and this is evidenced by the glacial back stripping The area of study is situated into a seismotectonic zone where an intercordilleran segment has a Cordillera Blanca’s glaciers, that produces a lot of ice2 s falls, moraines landslides and great rocks. These materials fall in to glacial lakes and produce a violent damage. Huaraz city is in the Quilcay2 s alluvial fan, and consists of the fluvial-alluvial sediments Historically in Huaraz have been reported events like landslides that evidence the risk factor and increase the vulnerability of the zone due to deglatiation and lacustrine phenomena’s of Palcarraju mountain and Palcacocha lake. For the mitigation of the risk we are showing some instructions that must be diffused to the most of the peo...
2
artículo
The spatial distribution of seismicity and tectonics in the central region of Peru is analyzed using information contained in the Seismic Catalog of the Geophysical Institute of Peru (IGP), period 2015-2022 (M ≥4.5), to propose a 3D geometry for the Nazca plate within the subduction process. The results show that, in the central region, the Nazca plate subducts with an approximate angle of 28°- 30° up to a depth of 120 km to then continue in a subhorizontal manner up to the distance of 700 km. Near the city of Pucallpa, the Nazca plate develops a resubduction process with an approximate angle of 28° to a depth of 200 km. The distribution of the stress axes P and T show the process of plate convergence in front of the coastal zone and the internal deformation of the Nazca plate below the continent. At the height of the city of Pucallpa, the increase of seismicity of intermediate focu...
3
objeto de conferencia
Publicado 2021
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The seismic activity of Peru has its origin in the convergent margin, where the Nazca plate subducts under the South American plate, a process that generates friction and accumulation of stress, reflected in deformation of the crust and superficial earthquakes (<30km of depth). Cusco was affected by earthquakes in 1950, 1650 and recently in 1986, the first two, major earthquakes of magnitudes greater than 7 MM (Silgado,1978). The Tambomachay active geological fault is located four kilometers to the north of the city of Cusco, and belongs to a large and wide deformation zone, where the structures have NWSE and E-W trends, known as the Zurite-Cusco- Urcos-Sicuani Fault System (Benavente et al., 2013). Recent studies show clear morphological and structural evidence of Quaternary activity on these structures (Sébrier et al., 1985; Mercier et al., 1992; Cabrera, 1988; Benavente et al, 2013),...
4
artículo
Los cambios climáticos que implican el calentamiento global han traído como consecuencia, en las últimas décadas, una gran reducción de las masas glaciares en el planeta Tierra, que se manifiesta por el retroceso de los glaciares. El área de estudio se enmarca dentro de una zona sismotectónica móvil y en un sector intracordillerano con influencia de la actividad glaciar de la Cordillera Blanca, en la cual se originan desprendimientos de grandes bloques de hielo, de materiales morrénicos y de rocas, los cuales al llegar violentamente a las lagunas glaciares ocasionan grandes movimientos de masas. Geológicamente, la ciudad de Huaraz ocupa el abanico deyectivo del río Quillcay, el cual está constituido por materiales fluvio-aluvionales. En la ciudad de Huaraz se han reportado históricamente una serie de eventos de remoción en masas, y siendo evidentes todos los factores de rie...
5
artículo
The eastern area of Metropolitan Lima is characterized by a permanent urban expansion, particularly in the area of Chosica, Lima. In these areas with a semi-arid climate, numerous disasters have occurred due to the exposure of the population to mass movements. A relevant case of this reality is the Quirio torrent (Annex 1. Location), where natural phenomena are reflected in intense water erosion and landslides on hillsides, as well as alluvium in the drainage channel. In this context, informal urban expansion has been taking place in the last 10 years in areas close to the catchment basin of the aforementioned torrent, occupying proluvial fans and slopes. For this reason, it is justified to continue studying these spaces on a large scale to make visible the relationship between the aforementioned phenomena and the exposure and vulnerability of the population. The objective of the researc...
6
artículo
Peru is a mega-diverse country, multicultural, yet there are many and varied phenomena of internal and external geodynamics due to plate tectonics, the climatic diversity and its intricate geomorphology by the presence of the Peruvian Andes and its complex geological history. The province of Lima has a wide internal and external geodynamics, is prone to various geological phenomena, mainly floods, earthquakes, tsunamis and landslides. In several parts of our capital, due to a chaotic urban planning, without technical support, only taking into account the inertia of bureaucratic and corrupt officials have made Lima one of the most vulnerable to the various geodynamic phenomena. Urbanization in San Diego, district of San Martin de Porres, the March 15, 2001, the Chillon River overflowed, breaking a coastal defense. Because of its geomorphology and river geodynamic development has an upper ...
7
artículo
Peru is a mega-diverse country, multicultural, yet there are many and varied phenomena of internal and external geodynamics due to plate tectonics, the climatic diversity and its intricate geomorphology by the presence of the Peruvian Andes and its complex geological history. The province of Lima has a wide internal and external geodynamics, is prone to various geological phenomena, mainly floods, earthquakes, tsunamis and landslides. In several parts of our capital, due to a chaotic urban planning, without technical support, only taking into account the inertia of bureaucratic and corrupt officials have made Lima one of the most vulnerable to the various geodynamic phenomena. Urbanization in San Diego, district of San Martin de Porres, the March 15, 2001, the Chillon River overflowed, breaking a coastal defense. Because of its geomorphology and river geodynamic development has an upper ...
8
tesis doctoral
Publicado 2024
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This dissertation investigates the potential improvement of volcanic eruption understanding and forecasting methods by using advanced data processing techniques to analyze large datasets at three target volcanoes (Piton de la Fournaise (PdlF) (France), Sabancaya, and Ubinas (Peru)). The central objective of this study is to search for possible empirical relationships between the pre-eruptive behavior of the accelerated increase in seismic activity using the Failure Forecast Method (FFM) and velocity variations measured by Coda Wave Interferometry (CWI), since both observations are reported to be independently associated with medium damage. The FFM is a deterministic method used to forecast volcanic eruptions using an empirical relationship of increased and accelerated evolution of an observable (e.g., volcano-seismic event rates). The event rates used with FFM in this study were generate...
9
tesis doctoral
Publicado 2024
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This dissertation investigates the potential improvement of volcanic eruption understanding and forecasting methods by using advanced data processing techniques to analyze large datasets at three target volcanoes (Piton de la Fournaise (PdlF) (France), Sabancaya, and Ubinas (Peru)). The central objective of this study is to search for possible empirical relationships between the pre-eruptive behavior of the accelerated increase in seismic activity using the Failure Forecast Method (FFM) and velocity variations measured by Coda Wave Interferometry (CWI), since both observations are reported to be independently associated with medium damage. The FFM is a deterministic method used to forecast volcanic eruptions using an empirical relationship of increased and accelerated evolution of an observable (e.g., volcano-seismic event rates). The event rates used with FFM in this study were generate...
10
artículo
The Cerro La Bruja outarop included into Pisco Formation related to fosiliferous content (mollusca and vertebrades) get a exactly datation of series, developed by marine sediments interbeded volcanics of volcanic activities from Cordillera occidental and diatomites, related to volcanics activities. In this Formation were found since thousand mile years a huge faune from marine vertebrates. This fauna is well know and it includes fish (selaceous and teleosteous), reptiles (turtles and cocodriles), binds and marine mamiferos (spheniscidae, phocidae). The funistic association shows sedimentary enviromment represent to this litoestratigrafic unit, go from shoreface to onshore, to abundance and good preservation of fosils shows a fast sandy. The tectonic activity in the area is strong and its shows in the variation from sea level (transgressive – regressive) log in the outcrop up shong mark...
11
artículo
The Cerro La Bruja outarop included into Pisco Formation related to fosiliferous content (mollusca and vertebrades) get a exactly datation of series, developed by marine sediments interbeded volcanics of volcanic activities from Cordillera occidental and diatomites, related to volcanics activities. In this Formation were found since thousand mile years a huge faune from marine vertebrates. This fauna is well know and it includes fish (selaceous and teleosteous), reptiles (turtles and cocodriles), binds and marine mamiferos (spheniscidae, phocidae). The funistic association shows sedimentary enviromment represent to this litoestratigrafic unit, go from shoreface to onshore, to abundance and good preservation of fosils shows a fast sandy. The tectonic activity in the area is strong and its shows in the variation from sea level (transgressive – regressive) log in the outcrop up shong mark...
12
artículo
Publicado 2008
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El estudio del clima es imprescindible para explicar la geodinámica externa en la vertiente del Pacífico de los Andes Centrales, entre 15°S y 19°S), debido a que los procesos mediante los cuales se desarrolla el modelado del relieve o morfogénesis están controlados por las variables termo-pluviométricas y la fito-estabilización. Además, la geodinámica interna de la región se encuentra igualmente relacionada con las condiciones climáticas, que determinan la cuantía del aporte de sedimentos a la fosa oceánica (Kulm et al. 1977), afectando a la tasa de erosión por subducción en el plano de contacto entre las placas y a la composición de los magazas que se forman bajo el erógeno andino. En esta ponencia se analizan los efectos del clima en la geodinámica externa, en un marco teórico en el que se considera que un sistema morfoclimático es un conjunto integrado por los age...
13
tesis de grado
Publicado 2019
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El objetivo principal de la presente investigación fue Determinar la influencia del control estructural para conocer el emplazamiento de la mineralización de Au-Ag en las vetas Mascota, Protectora y Pozos Ricos, en Cascabamba, en el cual se debe identificar las estructuras geológicas principales además de áreas con potencial de mineralización. El depósito de Cascabamba se encuentra al Este de la provincia de Contumazá donde afloran rocas cretáceas de la formación Chimú al Norte y centro mediante un anticlinal regional, estas están intruidas por tonalita y diorita al centro, intrusiones subvolcanicas posteriores de pórfidos dacíticos y andesíticos al Oeste y Este. La metodología para realizar el presente estudio está divido en 3 etapas: pre campo, de campo y post campo, los cuales consisten en describir, analizar, comparar, deducir y explicar a través de cuadros, tablas,...
14
tesis de grado
Publicado 2024
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El área de estudio se ubica en el valle del río Cañete, Yauyos, Lima. La caracterización litogeoquímica de la Super Unidad Catahuasi y la Unidad Tupe se realizó mediante el uso de elementos mayores y elementos traza. Los elementos mayores permiten clasificar las rocas asignando litologías, series magmáticas y origen tectónico. Los elementos trazan son útiles para identificar procesos petrogenéticos que los elementos mayores no pueden, a pesar de la presencia de alteración en las rocas. La caracterización petrográfica se realizó en base a los diagramas QAPF. Las muestras identificadas con valores elevados de Cu son la muestra GR50A-19-020 (Cu: 2935 ppm) perteneciente a la Super Unidad Catahuasi y la muestra GR50A-19-037 (Cu: 999 ppm) perteneciente a la Formación Tantará. Los diagramas de tierras raras indican una corteza enriquecida en anfíboles (Hidratada). Las muestras...
15
tesis de grado
Publicado 2017
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RESUMEN La presente investigación de tesis de arquitectura se enmarca en el estudio de los aspectos del detalle cómo momento básico del proyecto y su pertinencia en la intensificación de la forma. Tiene como objetivo definir cuáles son los aspectos del detalle que ayudan a determinar una intensificación de la formal; se parte de la hipótesis que los encuentros de contacto, penetración y tensión son los que determinarán el detalle, el cual a su vez intensifica la forma. Esta forma será concebida por una relación que se estable en su interior con la ayuda de las proporciones como la modulación y la sección áurea, que sirven para darle armonía visual al objeto, acompañadas de los principios ordenadores de repetición y tectonicidad; esta relación de detalle y forma son las que servirán para que el detalle intensifique la forma. La investigación se realiza con la recolecc...
16
tesis de maestría
Publicado 2010
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El yacimiento de la mina Pierina que se explota hace más de 10 años, fue descubierto por la presencia de un megabloque ubicado en un paraje denominado Piruro. Es un yacimiento epitermal de alta sulfuración de oro-plata, alojado en rocas volcánicas del grupo Calipuy, depositadas en dos etapas, la primera entre 46 a 23 Ma y la segunda entre 16 a 13 Ma, con intervalo de inactividad volcánica para esta zona de aproximadamente 8 Ma. Para los fines del presente estudio, se tomaron en cuenta los eventos tectónicos de la Fase Quechua (Mioceno) y Fase del Cuaternario antiguo ocurridos en la región Perú. En esta etapa ocurrió el volcanismo y el tectonismo más importante relacionados con la mineralización y la posterior modificación de la anatomía original del yacimiento Pierina por efecto de la geodinámica externa. La deformación en la mina Pierina, se ha desarrollado mediante dos t...
17
artículo
Publicado 2021
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The disconnection of architecture with the natural soil in an arid landscape and its possibility of freeing it from it in a series of works that were projected to be disassembled at some future time, this when the work reaches its useful life, in addition to the use of materials Biodegradable in their constitution, they are a foundational part of this landscape.The enhancement of permanent traditional construction techniques in desert settlements, among others the “Quincha” type construction system (reeds, wood, straw, earth), also projecting all its paths in bischofita (compacted salt), the use of walls of blocks of white salt worked from the salt flats of the Atacama desert, all these materials without major industrial or technological processes, but rather as raw material of the place for artisan work, approaching a tectonic revaluation in architecture and its reaction to the indu...
18
artículo
Publicado 2021
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The disconnection of architecture with the natural soil in an arid landscape and its possibility of freeing it from it in a series of works that were projected to be disassembled at some future time, this when the work reaches its useful life, in addition to the use of materials Biodegradable in their constitution, they are a foundational part of this landscape.The enhancement of permanent traditional construction techniques in desert settlements, among others the “Quincha” type construction system (reeds, wood, straw, earth), also projecting all its paths in bischofita (compacted salt), the use of walls of blocks of white salt worked from the salt flats of the Atacama desert, all these materials without major industrial or technological processes, but rather as raw material of the place for artisan work, approaching a tectonic revaluation in architecture and its reaction to the indu...
19
artículo
Publicado 2021
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The disconnection of architecture with the natural soil in an arid landscape and its possibility of freeing it from it in a series of works that were projected to be disassembled at some future time, this when the work reaches its useful life, in addition to the use of materials Biodegradable in their constitution, they are a foundational part of this landscape.The enhancement of permanent traditional construction techniques in desert settlements, among others the “Quincha” type construction system (reeds, wood, straw, earth), also projecting all its paths in bischofita (compacted salt), the use of walls of blocks of white salt worked from the salt flats of the Atacama desert, all these materials without major industrial or technological processes, but rather as raw material of the place for artisan work, approaching a tectonic revaluation in architecture and its reaction to the indu...
20
artículo
Publicado 2014
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Genetic structure of the populations of H. inornata was evaluated and the barriers for genetic flux and historic processes were investigated. Samples were collected trying to cover the distribution range of the species, from Mexico to northern Perú. Based on COI sequences, 118 haplotypes from 220 specimens were detected; the differences between such haplotypes were due to 97 variable sites (21.41%) of the 453 bp sequenced. A high haplotype diversity (h=0.979) and a moderate nucleotidic diversity were observed. The values of Fst, the exact test of population differentiation, and the molecular variance analysis (AMOVA) were used in order to analyze the genetic differentiation. These analyses suggest the existence of two populations: northern, off the coasts of Sinaloa, Jalisco, Michoacán, Guerrero, and Oaxaca, and southern, off the coasts of Chiapas, El Salvador, Panamá and Perú. Histo...
