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Jesus Ruizfernandez - One of the best experts on this subject based on the ideXlab platform.
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geomorphological processes and frozen ground conditions in elephant point livingston island south shetland islands antarctica
Geomorphology, 2017Co-Authors: Marc Oliva, Jesus RuizfernandezAbstract:Abstract Elephant Point is an ice-free area in the SW corner of Livingston Island (Maritime Antarctica). The retreat of Rotch Dome glacier during the Holocene has exposed a land area of 1.16 km2. Up to 17.3% of this surface has become ice-free between 1956 and 2010. A detailed geomorphological mapping of this ice-free Environment was conducted in late January 2014. A wide range of active periglacial landforms show that periglacial processes are widespread. From the glacier to the coast four different geomorphological areas are identified: Proglacial Environment, moraine complex, bedrock plateaus and marine terraces. In situ measurements of the thawed soil depth show evidence of the widespread frozen ground conditions in the area. Field observations of permafrost exposures suggest that these frost conditions may be related to a soil permafrost regime, almost down to sea level. The activity of penguin colonies and elephant seals has created minor geomorphological features in the raised marine terraces. Here, several archaeological sites related to early human colonization of Antarctica were also found in natural shelters.
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geoecology and historical heritage in the ice free area of elephant point antarctica proposal for future Environmental protection
Geoheritage, 2017Co-Authors: Marc Oliva, Jesus Ruizfernandez, Andres Zarankin, Angelica Casanovakatny, Jordi NofreAbstract:The Antarctic Treaty provides the general Environmental policies for all areas south of parallel 60° S. In addition, some enclaves have a higher degree of Environmental protection regulated by three categories: Antarctic Specially Protected Areas (ASPA), Antarctic Specially Managed Areas and Historic Sites or Monuments. Most of the protected areas in Antarctica have been designated based on the national geopolitical strategies, giving special attention to those areas where access and logistics are easier. This paper focuses on Elephant Point (Livingston, South Shetland Islands), an ice-free area of 1.16 km2 where activities are only regulated by the Antarctic Treaty System and no further Environmental protection exists. By using a geoecological approach based on the geomorphology together with the distribution of the fauna and flora existing in the area, we have distinguished six geoecological Environments in Elephant Point: Rotch glacier, Proglacial Environment, moraine system, bedrock plateaus, marine terraces and present-day beach. The distribution of fauna and flora is highly conditioned by the age of deglaciation as well as by the glacial, paraglacial and periglacial geomorphological landforms and processes. Besides this, five well preserved archaeological sites have been found in Elephant Point. These sites were used for sealers and whalers who sailed across the Maritime Antarctic during the eighteenth and nineteenth centuries. The rich biodiversity together with the high geomorphological and historical significance of this peninsula within the Maritime Antarctic constitutes the scientific basis to propose Elephant Point to be designated an ASPA in order to preserve the unique scientific heritage existing in this small peninsula.
Marc Oliva - One of the best experts on this subject based on the ideXlab platform.
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geomorphological processes and frozen ground conditions in elephant point livingston island south shetland islands antarctica
Geomorphology, 2017Co-Authors: Marc Oliva, Jesus RuizfernandezAbstract:Abstract Elephant Point is an ice-free area in the SW corner of Livingston Island (Maritime Antarctica). The retreat of Rotch Dome glacier during the Holocene has exposed a land area of 1.16 km2. Up to 17.3% of this surface has become ice-free between 1956 and 2010. A detailed geomorphological mapping of this ice-free Environment was conducted in late January 2014. A wide range of active periglacial landforms show that periglacial processes are widespread. From the glacier to the coast four different geomorphological areas are identified: Proglacial Environment, moraine complex, bedrock plateaus and marine terraces. In situ measurements of the thawed soil depth show evidence of the widespread frozen ground conditions in the area. Field observations of permafrost exposures suggest that these frost conditions may be related to a soil permafrost regime, almost down to sea level. The activity of penguin colonies and elephant seals has created minor geomorphological features in the raised marine terraces. Here, several archaeological sites related to early human colonization of Antarctica were also found in natural shelters.
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geoecology and historical heritage in the ice free area of elephant point antarctica proposal for future Environmental protection
Geoheritage, 2017Co-Authors: Marc Oliva, Jesus Ruizfernandez, Andres Zarankin, Angelica Casanovakatny, Jordi NofreAbstract:The Antarctic Treaty provides the general Environmental policies for all areas south of parallel 60° S. In addition, some enclaves have a higher degree of Environmental protection regulated by three categories: Antarctic Specially Protected Areas (ASPA), Antarctic Specially Managed Areas and Historic Sites or Monuments. Most of the protected areas in Antarctica have been designated based on the national geopolitical strategies, giving special attention to those areas where access and logistics are easier. This paper focuses on Elephant Point (Livingston, South Shetland Islands), an ice-free area of 1.16 km2 where activities are only regulated by the Antarctic Treaty System and no further Environmental protection exists. By using a geoecological approach based on the geomorphology together with the distribution of the fauna and flora existing in the area, we have distinguished six geoecological Environments in Elephant Point: Rotch glacier, Proglacial Environment, moraine system, bedrock plateaus, marine terraces and present-day beach. The distribution of fauna and flora is highly conditioned by the age of deglaciation as well as by the glacial, paraglacial and periglacial geomorphological landforms and processes. Besides this, five well preserved archaeological sites have been found in Elephant Point. These sites were used for sealers and whalers who sailed across the Maritime Antarctic during the eighteenth and nineteenth centuries. The rich biodiversity together with the high geomorphological and historical significance of this peninsula within the Maritime Antarctic constitutes the scientific basis to propose Elephant Point to be designated an ASPA in order to preserve the unique scientific heritage existing in this small peninsula.
Oliva Marc - One of the best experts on this subject based on the ideXlab platform.
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Geoecology and Historical Heritage in the Ice-Free Area of Elephant Point (Antarctica). Proposal for Future Environmental Protection
'Springer Science and Business Media LLC', 2021Co-Authors: Oliva Marc, Ruiz-fernández Jesús, Zarankin Andres, Casanova Katny Angelica, Nofre JordiAbstract:The Antarctic Treaty provides the general Environmental policies for all areas south of parallel 60 degrees S. In addition, some enclaves have a higher degree of Environmental protection regulated by three categories: Antarctic Specially Protected Areas (ASPA), Antarctic Specially Managed Areas and Historic Sites or Monuments. Most of the protected areas in Antarctica have been designated based on the national geopolitical strategies, giving special attention to those areas where access and logistics are easier. This paper focuses on Elephant Point (Livingston, South Shetland Islands), an ice-free area of 1.16 km2 where activities are only regulated by the Antarctic Treaty System and no further Environmental protection exists. By using a geoecological approach based on the geomorphology together with the distribution of the fauna and flora existing in the area, we have distinguished six geoecological Environments in Elephant Point: Rotch glacier, Proglacial Environment, moraine system, bedrock plateaus, marine terraces and present-day beach. The distribution of fauna and flora is highly conditioned by the age of deglaciation as well as by the glacial, paraglacial and periglacial geomorphological landforms and processes. Besides this, five well preserved archaeological sites have been found in Elephant Point. These sites were used for sealers and whalers who sailed across the Maritime Antarctic during the eighteenth and nineteenth centuries. The rich biodiversity together with the high geomorphological and historical significance of this peninsula within the Maritime Antarctic constitutes the scientific basis to propose Elephant Point to be designated an ASPA in order to preserve the unique scientific heritage existing in this small peninsula
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Geomorphological processes and frozen ground conditions in Elephant Point (Livingston Island, South Shetland Islands, Antarctica)
'Elsevier BV', 2017Co-Authors: Oliva Marc, Ruiz-fernández JesúsAbstract:Elephant Point is an ice-free area in the SW corner of Livingston Island (Maritime Antarctica). The retreat of Rotch Dome glacier during the Holocene has exposed a land area of 1.16 km2 . Up to 17.3% of this surface has become ice-free between 1956 and 2010. A detailed geomorphological mapping of this ice-free Environment was conducted in late January 2014. A wide range of active periglacial landforms show that periglacial processes are widespread. From the glacier to the coast four different geomorphological areas are identified: Proglacial Environment, moraine complex, bedrock plateaus and marine terraces. In situ measurements of the thawed soil depth show evidence of the widespread frozen ground conditions in the area. Field observations of permafrost exposures suggest that these frost conditions may be related to a soil permafrost regime, almost down to sea level. The activity of penguin colonies and elephant seals has created minor geomorphological features in the raised marine terraces. Here, several archaeological sites related to early human colonization of Antarctica were also found in natural shelters.info:eu-repo/semantics/publishedVersio
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Geoecology and historical heritage in the Ice-Free Area of Elephant Point (Antarctica): proposal for future Environmental protection
'Springer Science and Business Media LLC', 2017Co-Authors: Oliva Marc, Ruiz-fernández Jesús, Zarankin Andres, Casanova Katny Angelica, Nofre JordiAbstract:The Antarctic Treaty provides the general Environmental policies for all areas south of parallel 60° S. In addition, some enclaves have a higher degree of Environmental protection regulated by three categories: Antarctic Specially Protected Areas (ASPA), Antarctic Specially Managed Areas and Historic Sites or Monuments. Most of the protected areas in Antarctica have been designated based on the national geopolitical strategies, giving special attention to those areas where access and logistics are easier. This paper focuses on Elephant Point (Livingston, South Shetland Islands), an ice-free area of 1.16 km2 where activities are only regulated by the Antarctic Treaty System and no further Environmental protection exists. By using a geoecological approach based on the geomorphology together with the distribution of the fauna and flora existing in the area, we have distinguished six geoecological Environments in Elephant Point: Rotch glacier, Proglacial Environment, moraine system, bedrock plateaus, marine terraces and present-day beach. The distribution of fauna and flora is highly conditioned by the age of deglaciation as well as by the glacial, paraglacial and periglacial geomorphological landforms and processes. Besides this, five well preserved archaeological sites have been found in Elephant Point. These sites were used for sealers and whalers who sailed across the Maritime Antarctic during the eighteenth and nineteenth centuries. The rich biodiversity together with the high geomorphological and historical significance of this peninsula within the Maritime Antarctic constitutes the scientific basis to propose Elephant Point to be designated an ASPA in order to preserve the unique scientific heritage existing in this small peninsula.info:eu-repo/semantics/publishedVersio
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Soil processes in recently deglaciated Environments in Maritime Antarctica: a study case from Elephant Point (Livingston Island, South Shetland Islands)
European Geosciences Union, 2016Co-Authors: Oliva Marc, Ruiz-fernández Jesús, Quijano Gaudes Laura, Palazón Tabuenca Leticia, Navas Izquierdo AnaAbstract:1 .pdf file with the extended abstract from the Book Abstracts.- 1. pdf copy of the original poster presented by authors.Periglacial processes are widespread in all the peninsula, but the type and characteristics of soils depen on the timing of glacier retreat. In this research we aim to assess how the glacier retreat affects the recently formed soils. Ten sites were sampled along a transect crossing different geomorphological units (beach, raised beaches, moraine, Proglacial Environment), following the direction of glacier retreat.Peer reviewe
Ruiz-fernández Jesús - One of the best experts on this subject based on the ideXlab platform.
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Geoecology and Historical Heritage in the Ice-Free Area of Elephant Point (Antarctica). Proposal for Future Environmental Protection
'Springer Science and Business Media LLC', 2021Co-Authors: Oliva Marc, Ruiz-fernández Jesús, Zarankin Andres, Casanova Katny Angelica, Nofre JordiAbstract:The Antarctic Treaty provides the general Environmental policies for all areas south of parallel 60 degrees S. In addition, some enclaves have a higher degree of Environmental protection regulated by three categories: Antarctic Specially Protected Areas (ASPA), Antarctic Specially Managed Areas and Historic Sites or Monuments. Most of the protected areas in Antarctica have been designated based on the national geopolitical strategies, giving special attention to those areas where access and logistics are easier. This paper focuses on Elephant Point (Livingston, South Shetland Islands), an ice-free area of 1.16 km2 where activities are only regulated by the Antarctic Treaty System and no further Environmental protection exists. By using a geoecological approach based on the geomorphology together with the distribution of the fauna and flora existing in the area, we have distinguished six geoecological Environments in Elephant Point: Rotch glacier, Proglacial Environment, moraine system, bedrock plateaus, marine terraces and present-day beach. The distribution of fauna and flora is highly conditioned by the age of deglaciation as well as by the glacial, paraglacial and periglacial geomorphological landforms and processes. Besides this, five well preserved archaeological sites have been found in Elephant Point. These sites were used for sealers and whalers who sailed across the Maritime Antarctic during the eighteenth and nineteenth centuries. The rich biodiversity together with the high geomorphological and historical significance of this peninsula within the Maritime Antarctic constitutes the scientific basis to propose Elephant Point to be designated an ASPA in order to preserve the unique scientific heritage existing in this small peninsula
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Geomorphological processes and frozen ground conditions in Elephant Point (Livingston Island, South Shetland Islands, Antarctica)
'Elsevier BV', 2017Co-Authors: Oliva Marc, Ruiz-fernández JesúsAbstract:Elephant Point is an ice-free area in the SW corner of Livingston Island (Maritime Antarctica). The retreat of Rotch Dome glacier during the Holocene has exposed a land area of 1.16 km2 . Up to 17.3% of this surface has become ice-free between 1956 and 2010. A detailed geomorphological mapping of this ice-free Environment was conducted in late January 2014. A wide range of active periglacial landforms show that periglacial processes are widespread. From the glacier to the coast four different geomorphological areas are identified: Proglacial Environment, moraine complex, bedrock plateaus and marine terraces. In situ measurements of the thawed soil depth show evidence of the widespread frozen ground conditions in the area. Field observations of permafrost exposures suggest that these frost conditions may be related to a soil permafrost regime, almost down to sea level. The activity of penguin colonies and elephant seals has created minor geomorphological features in the raised marine terraces. Here, several archaeological sites related to early human colonization of Antarctica were also found in natural shelters.info:eu-repo/semantics/publishedVersio
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Geoecology and historical heritage in the Ice-Free Area of Elephant Point (Antarctica): proposal for future Environmental protection
'Springer Science and Business Media LLC', 2017Co-Authors: Oliva Marc, Ruiz-fernández Jesús, Zarankin Andres, Casanova Katny Angelica, Nofre JordiAbstract:The Antarctic Treaty provides the general Environmental policies for all areas south of parallel 60° S. In addition, some enclaves have a higher degree of Environmental protection regulated by three categories: Antarctic Specially Protected Areas (ASPA), Antarctic Specially Managed Areas and Historic Sites or Monuments. Most of the protected areas in Antarctica have been designated based on the national geopolitical strategies, giving special attention to those areas where access and logistics are easier. This paper focuses on Elephant Point (Livingston, South Shetland Islands), an ice-free area of 1.16 km2 where activities are only regulated by the Antarctic Treaty System and no further Environmental protection exists. By using a geoecological approach based on the geomorphology together with the distribution of the fauna and flora existing in the area, we have distinguished six geoecological Environments in Elephant Point: Rotch glacier, Proglacial Environment, moraine system, bedrock plateaus, marine terraces and present-day beach. The distribution of fauna and flora is highly conditioned by the age of deglaciation as well as by the glacial, paraglacial and periglacial geomorphological landforms and processes. Besides this, five well preserved archaeological sites have been found in Elephant Point. These sites were used for sealers and whalers who sailed across the Maritime Antarctic during the eighteenth and nineteenth centuries. The rich biodiversity together with the high geomorphological and historical significance of this peninsula within the Maritime Antarctic constitutes the scientific basis to propose Elephant Point to be designated an ASPA in order to preserve the unique scientific heritage existing in this small peninsula.info:eu-repo/semantics/publishedVersio
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Soil processes in recently deglaciated Environments in Maritime Antarctica: a study case from Elephant Point (Livingston Island, South Shetland Islands)
European Geosciences Union, 2016Co-Authors: Oliva Marc, Ruiz-fernández Jesús, Quijano Gaudes Laura, Palazón Tabuenca Leticia, Navas Izquierdo AnaAbstract:1 .pdf file with the extended abstract from the Book Abstracts.- 1. pdf copy of the original poster presented by authors.Periglacial processes are widespread in all the peninsula, but the type and characteristics of soils depen on the timing of glacier retreat. In this research we aim to assess how the glacier retreat affects the recently formed soils. Ten sites were sampled along a transect crossing different geomorphological units (beach, raised beaches, moraine, Proglacial Environment), following the direction of glacier retreat.Peer reviewe
Camarero, Jesús Julio - One of the best experts on this subject based on the ideXlab platform.
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El registro sedimentario del lago Sant Maurici (Pirineos Centrales)
Sociedad Geologica de Espana, 2017Co-Authors: Calero, Miguel Angel, Valero-garcés, Blas L., Rull Valentí, Vegas-vilarrúbia Teresa, Garcés Sandra, López-vila Julià, Camarero, Jesús JulioAbstract:The St. Maurici Lake (1.004818 E, 42.580801 N, 1924 m a.s.l.) is located in the eastern area of >Parc Nacional d’Aigüestortes i Estany de Sant Maurici>, Central Pyrenees, Catalonia. The lake occupies an overexcavated basin behind a terminal moraine. This paper aims to reconstruct the evolution of depositional Environments and their relation to climate evolution since deglaciation to the present, based on a 8.7-m long sequence retrieved in the deepest part of the lake and a preliminary chronological model with three 14C AMS dates. After the glacial retreat carbonatic very fine sands and silts without organic matter were deposited in a Proglacial Environment. Early Holocene sediments are massive fine sands to laminated sandy silts with increasing organic content and some sand layers. A sedimentary hiatus occurred during the mid Holocene and the sedimentation re-started after ca. 4 ka with deposition of organic facies. Changes in clastic content reflect centennial scale run-off variability during the last millennia.El proyecto RECREO del Organismo Autónomo de Parques Nacionales (OPAN-387/2011) ha financiado este estudio.Peer Reviewe
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The Sant Maurici Lake sedimentary record (Central Pyrenees)
Sociedad Geologica de Espana, 2016Co-Authors: Calero, Miguel Angel, Rull Valentí, Vegas-vilarrúbia Teresa, López-vila Julià, Valero Garcés Blas, Garcés Pastor Sandra, Camarero, Jesús JulioAbstract:The St. Maurici Lake (1.004818 E, 42.580801 N, 1924 m a.s.l.) is located in the eastern area of "Parc Nacional d’Aigüestortes i Estany de Sant Maurici", Central Pyrenees, Catalonia. The lake occupies an overexcavated basin behind a terminal moraine. This paper aims to reconstruct the evolution of depositional Environments and their relation to climate evolution since deglaciation to the present, based on a 8.7-m long sequence retrieved in the deepest part of the lake and a preliminary chronological model with three 14C AMS dates. After the glacial retreat carbonatic very fine sands and silts without organic matter were deposited in a Proglacial Environment. Early Holocene sediments are massive fine sands to laminated sandy silts with increasing organic content and some sand layers. A sedimentary hiatus occurred during the mid Holocene and the sedimentation re-started after ca. 4 ka with deposition of organic facies. Changes in clastic content reflect centennial scale run-off variability during the last millenniaEl Lago de St. Maurici (1.004818 E, 42.580801 N, 1924 m s.n.m) se localiza en la zona oriental del "Parc Nacional d’Aigüestortes i Estany de Sant Maurici", Pirineos Centrales, Catalunya. El lago ocupa una cuenca de sobreexcavación detrás de una morrena terminal. El objetivo de este trabajo es reconstruir la evolución de los ambientes de depósito y su relación con la variabilidad climática desde la deglaciación hasta la actualidad, basándose en un sondeo de 8,7 m de longitud de la zona profunda del lago y un modelo de edad preliminar con tres dataciones AMS 14C. Tras la retirada del glaciar, se sedimentó una secuencia de arenas carbonatadas muy finas y limos arcillosos sin materia orgánica, propios de un lago pro-glacial. El Holoceno temprano se caracteriza por facies de arenas finas masivas que pasan a facies de limos arenosos laminados con un aumento progresivo del contenido en materia orgánica y con algunas capas de arenas. La secuencia presenta un hiato sedimentario durante el Holoceno medio. Desde el re-inicio de la sedimentación en el Holoceno tardío (ca. 4 ka) se han depositado facies organógena