The following geomorphologic study about thy micro-basin of the «Pastoruri» glacier, covers the most important characteristics on the configuration of relief, as essential aspects of the morfo-dynamic and morpho-genetic processes that work in its glacial and periglacial model. This research develops investigation assignments in order to accomplish with the goal of moving forward in the knowledge of the glacial processes that effects our planet, its relationship with the weather changing and its effects in the availability of hydro resources. It deals with a

Within the extraordinary variety of landscapes of the Peruvian geography, there are areas under climatic conditions characterized by a marked seasonality of rainfall, typical of regions called semiarid, where we found a dry season centered on winter, followed by a summer rainy season. This distribution of the dry pattern rainfall in winter, determines a strong constraint on the development of plant life mainly, which is reduced in the water extreme deficit to a xerophytic vegetation typical of dry regions, while in areas where the coverage steppe protective vegetation is scarce to null, the field is more exposed to the actions of the rain erosion and surface runoff that is the origin of the processes that generate the phenomena torrential, llocllas or llapanas. Under these climatic conditions, to which must be added the human actions that favor the erosive action of rain and the “arroy...

RESUMEN El presente estudio geomorfológico de la microcuenca Pastoruri, comprende tanto las características más saltantes de la configuración del relieve, como los aspectos esenciales de los procesomorfodinámicos y morfogenéticos que actúan en modelado glacial y periglacial de la misma. Etrabajo desarrolla tareas de investigación para cumplir con el objetivo de avanzar en el conocimientdel retroceso glaciar, su relación con el cambio climático y de sus efectos en la disponibilidade recursos hídricos. Se trata de una problemática de enorme importancia para la región, cuymagnitud apenas se vislumbra, debido a las crecientes necesidades de la población de mayorey más intensivas formas de ocupación del territorio y con ello, el creciente requerimiento principalmente de recursos hídricos, energía, actividades agrícolas, turísticas, entre otras, de caráctevital para garant...

Within the extraordinary variety of landscapes of the Peruvian geography, there are areas under climatic conditions characterized by a marked seasonality of rainfall, typical of regions called semiarid, where we found a dry season centered on winter, followed by a summer rainy season. This distribution of the dry pattern rainfall in winter, determines a strong constraint on the development of plant life mainly, which is reduced in the water extreme deficit to a xerophytic vegetation typical of dry regions, while in areas where the coverage steppe protective vegetation is scarce to null, the field is more exposed to the actions of the rain erosion and surface runoff that is the origin of the processes that generate the phenomena torrential, llocllas or llapanas. Under these climatic conditions, to which must be added the human actions that favor the erosive action of rain and the “arroy...

The study area presents varied geomorphological features. Chaired by a major natural factor which is the Marañon River, which, tailoring and building its own valley, at the expense of the nature of the lithology and opposing tectonic forces, presents peculiar and varied spectacular landforms and geomorphological processes. Simultaneously and in an interrelated way, the same has happened in its numerous tributaries, as much to the right margin as to the left margin. ose make up as a set, a hierarchical network of valleys proportionate to their size basin, adjusted to the main axis, covering a vast hydrographic network that with its basins in this sector, ll much of the departments of Amazonas to the East and Cajamarca to the West. e Marañon River has built its main axis tting its bed, just as it has done with its own peculiarities, for example some other large Peruvian rivers are embedd...

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In Peru, the occurrence of catastrophic events causes irreparable loss of human lives and extensive material damage. These effects are increasing in scope and intensity in recent years, just as the demands increase at almost all scientific disciplines linked to land preparation tasks, demanding proposals for preventive actions or mitigation. This requirement gets extended particularly to geomorphology. In Peru, the standpoint linked to the positions aligned with the idealist, generalizing and deductivist lines of the classic Davisian geomorphology approach, is being now gradually replaced by the development of a systemic, morphoclimatic and inclusive approach. The result is that starting from direct observation of the land; this approach has contributed to the solution of concrete problems. This article discusses some experiences in the use, management and land occupation by our ancient ...

The study area presents varied geomorphological features. Chaired by a major natural factor which is the Marañon River, which, tailoring and building its own valley, at the expense of the nature of the lithology and opposing tectonic forces, presents peculiar and varied spectacular landforms and geomorphological processes. Simultaneously and in an interrelated way, the same has happened in its numerous tributaries, as much to the right margin as to the left margin. ose make up as a set, a hierarchical network of valleys proportionate to their size basin, adjusted to the main axis, covering a vast hydrographic network that with its basins in this sector, ll much of the departments of Amazonas to the East and Cajamarca to the West. e Marañon River has built its main axis tting its bed, just as it has done with its own peculiarities, for example some other large Peruvian rivers are embedd...

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En el Perú, la ocurrencia de fenómenos catastróficos causa irreparables pérdidas humanas y enormes daños materiales. Estos efectos se vienen incrementando en magnitud e intensidad en los últimos tiempos, de igual manera, se incrementan las exigencias a casi todas las disciplinas científicas vinculadas a las tareas de acondicionamiento del territorio, demandando propuestas de acciones preventivas o de mitigación. Este requerimiento se extiende en particular a la geomorfología. En el Perú, el enfoque vinculado con las posiciones alineadas con la línea idealista, generalizadora y deductivista de la geomorfología clásica davisiana, está siendo en la actualidad gradualmente sustituido por el desarrollo de un enfoque sistémico, morfoclimático e integrador, el resultado es que partiendo de la observación directa del terreno, este último viene contribuyendo a la solución de pr...

El presente trabajo titulado GEOMORFOLOGÍA DEL ORIGEN DEL RIO AMAZONAS, aborda el no hasta hace mucho discutido tema del origen de río Amazonas, analizando para ello las formas del relieve y los procesos morfodinámicos más saltantes, de esta parte de la cordillera del Chila, a la cual se ha llegado finalmente después de numerosos acercamientos efectuadas por expediciones anteriores. La zona estudiada abarca un área aproximada de 55km2 de extensión, comprendiendo un conjunto de cuatro cuencas: Garhuasanta, Sillanque, Apacheta y Ccaccansa, las mismas que constituyen el sector del extremo inicial de esta gigantesca red hidrográfica del río Amazonas. Estas cuencas se hallan en la cordillera del Chila conocido también como cordillera Choquecorao, en la provincia de Caylloma, departamento de Arequipa. Las cuencas referidas son estudiadas en forma cualitativa y en algunos de los valor...

In the summer of 2017 the north and central coast of Peru, endured rains as they had not been registered for many years, the departments of the north and center of the country were the most affected. In Lima, 80% of the identified streams were activated, causing mudslides and floods that affected the towns of Chosica, Huachipa, Carapongo, Cajamarquilla, Santa Eulalia, Campoy, among others, all located in the Rímac river basin. The occurrence of this phenomenon has been considered atypical by its magnitude and its improvised occurrence, for which the Multisectorial Committee in charge of the study of this phenomenon (ENFEN) called it «El Niño Costero». This natural phenomenon generated disasters such as the destruction of homes, land roads, bridges, schools and other infrastructure, especially in towns located in vulnerable areas. In this context, this research aims to explain the cha...

In the summer of 2017 the north and central coast of Peru, endured rains as they had not been registered for many years, the departments of the north and center of the country were the most affected. In Lima, 80% of the identified streams were activated, causing mudslides and floods that affected the towns of Chosica, Huachipa, Carapongo, Cajamarquilla, Santa Eulalia, Campoy, among others, all located in the Rímac river basin. The occurrence of this phenomenon has been considered atypical by its magnitude and its improvised occurrence, for which the Multisectorial Committee in charge of the study of this phenomenon (ENFEN) called it «El Niño Costero». This natural phenomenon generated disasters such as the destruction of homes, land roads, bridges, schools and other infrastructure, especially in towns located in vulnerable areas. In this context, this research aims to explain the cha...