Alberto Araneda
Biographic Data
| ID | 4131513 |
|---|---|
| NAME | Alberto Araneda |
| GIVEN NAMES | Alberto |
| FAMILY NAME | Araneda |
| SIGNATURE | ARANEDA A |
| AFFILIATIONS | University of Concepción |
| ORCID | 0000-0001-8483-6611 |
| VERIFIED | Yes |
| TOTAL WORKS | 8 |
| TOTAL CITATIONS | 3 |
| WORKS AS AUTHOR | 8 |
| WORKS AS EDITOR | 0 |
| FIRST PUBLICATION YEAR | 2007 |
| LATEST PUBLICATION YEAR | 2026 |
| H-INDEX | 1 |
Regional signals of recent environmental changes in northern Patagonia through the sediment record of a small lake
Volcanic, tectonic and climate controls on lacustrine sedimentary supplies over the last millenia in NE Chilean Patagonia (Lake Esponja, Aysen, 45°S)
The environmental variability of Northern Chilean Patagonia during the last millennia is evaluated using a multi-proxy analysis of sediment cores from Lake Esponja (45°S 72°W) to decipher if the sediment deposition is controlled by volcanic eruptions, landslides induced by earthquake or heavy rainfall. The lake is located in a glacio-tectonic valley in Patagonia. The organic-rich clayey silt sediment with low biogenic silica content was analysed …
A new multi-proxy record of environmental change over the last 1000 years on Chiloé Island
Knowledge of past environmental and climatic conditions of lake ecosystems on Chiloé Island on a millennial scale is limited. Hence, this study fills a gap in our understanding of this part of southern Chile. The aim of this study was to reconstruct the environmental and climatic history of the last 1000 years of Lake Pastahué through a multi-proxy sediment core analysis. The 1-m-long core was subsampled every centimeter for the organic matter, m…
Lacustrine record of last millennia eruptions in Northern Chilean Patagonia (45–47°S)
Due to its tectonic setting, the Andean Southern Volcanism Zone (SSVZ) is characterized by frequent volcanic activity. Chilean Patagonia lake sediments represent powerful archives of historical and past eruptions since the deglaciation. The lacustrine tephra record is investigated in 10 Holocene sedimentary cores collected in five lakes located along a 45–47° transect through Northern Chilean Patagonia. All the tephras identified by visual observ…
Late Holocene climate variability on the eastern flank of the Patagonian Andes (Chile)
Stable isotopes in mollusk shells have been widely used for hydrological balance reconstructions. However, their use is restricted to lakes that preserve the calcareous material of the shells. Lago Cisnes is located in Patagonia (47°S) and shows a continuous record of three species of mollusk during the past 5000 years. The isotopic records of δ 18 O in Pisidium sp., Lymnaea sp., and Biomphalaria sp. show discrepancies among them, which can be ex…
Descifrando La Historia Ambiental De Los Archipiélagos De Aysén, Chile
A travs de un anlisis histrico documental se reconocen los efectos del impacto humano en el territorio insular de Aysn, entre los siglos XVI y XIX. Los resultados obtenidos permiten reconstruir un proceso de intervencin ambiental que alcanz su peak en la segunda mitad del siglo XIX, marcado por una notoria degradacin de los ecosistemas locales debido a la caza comercial de pinnpedos y la tala maderera del ciprs de las Guaitecas. Se constata que l…
Historical records of Cipreses glacier (34°S)
The historical behaviour of Cipreses glacier from the nineteenth through the early twentieth century is described based on written records, cartography, iconography and photographs. These data allow us to infer that the last maximum advance of Cipreses glacier attributable to the ‘Little Ice Age’ occurred around AD 1842. The first historical retreat was recorded in 1858 and, since then, the glacier has shown a clear retreating trend with no new a…
Historical records of San Rafael glacier advances (North Patagonian Icefield)
Past ice lobe behaviour at Laguna San Rafael is described in documents provided by Spanish and then Chilean explorers from the late seventeenth to the early twentieth centuries. These records begin in AD 1675, when temperate conditions, probably similar to those at present, prevailed. At that point, the glacier was confined within its valley, not penetrating the Laguna. The glacier advanced noticeably during the nineteenth century and probably re…
A new multi-proxy record of environmental change over the last 1000 years on Chiloé Island
Knowledge of past environmental and climatic conditions of lake ecosystems on Chiloé Island on a millennial scale is limited. Hence, this study fills a gap in our understanding of this part of southern Chile. The aim of this study was to reconstruct the environmental and climatic history of the last 1000 years of Lake Pastahué through a multi-proxy sediment core analysis. The 1-m-long core was subsampled every centimeter for the organic matter, m…
Late Holocene climate variability on the eastern flank of the Patagonian Andes (Chile)
Stable isotopes in mollusk shells have been widely used for hydrological balance reconstructions. However, their use is restricted to lakes that preserve the calcareous material of the shells. Lago Cisnes is located in Patagonia (47°S) and shows a continuous record of three species of mollusk during the past 5000 years. The isotopic records of δ 18 O in Pisidium sp., Lymnaea sp., and Biomphalaria sp. show discrepancies among them, which can be ex…
Historical records of Cipreses glacier (34°S)
The historical behaviour of Cipreses glacier from the nineteenth through the early twentieth century is described based on written records, cartography, iconography and photographs. These data allow us to infer that the last maximum advance of Cipreses glacier attributable to the ‘Little Ice Age’ occurred around AD 1842. The first historical retreat was recorded in 1858 and, since then, the glacier has shown a clear retreating trend with no new a…
Historical records of San Rafael glacier advances (North Patagonian Icefield)
Past ice lobe behaviour at Laguna San Rafael is described in documents provided by Spanish and then Chilean explorers from the late seventeenth to the early twentieth centuries. These records begin in AD 1675, when temperate conditions, probably similar to those at present, prevailed. At that point, the glacier was confined within its valley, not penetrating the Laguna. The glacier advanced noticeably during the nineteenth century and probably re…
Historical records of Cipreses glacier (34°S)
The historical behaviour of Cipreses glacier from the nineteenth through the early twentieth century is described based on written records, cartography, iconography and photographs. These data allow us to infer that the last maximum advance of Cipreses glacier attributable to the ‘Little Ice Age’ occurred around AD 1842. The first historical retreat was recorded in 1858 and, since then, the glacier has shown a clear retreating trend with no new a…
Descifrando La Historia Ambiental De Los Archipiélagos De Aysén, Chile
A travs de un anlisis histrico documental se reconocen los efectos del impacto humano en el territorio insular de Aysn, entre los siglos XVI y XIX. Los resultados obtenidos permiten reconstruir un proceso de intervencin ambiental que alcanz su peak en la segunda mitad del siglo XIX, marcado por una notoria degradacin de los ecosistemas locales debido a la caza comercial de pinnpedos y la tala maderera del ciprs de las Guaitecas. Se constata que l…
Late Holocene climate variability on the eastern flank of the Patagonian Andes (Chile)
Stable isotopes in mollusk shells have been widely used for hydrological balance reconstructions. However, their use is restricted to lakes that preserve the calcareous material of the shells. Lago Cisnes is located in Patagonia (47°S) and shows a continuous record of three species of mollusk during the past 5000 years. The isotopic records of δ 18 O in Pisidium sp., Lymnaea sp., and Biomphalaria sp. show discrepancies among them, which can be ex…
Lacustrine record of last millennia eruptions in Northern Chilean Patagonia (45–47°S)
Due to its tectonic setting, the Andean Southern Volcanism Zone (SSVZ) is characterized by frequent volcanic activity. Chilean Patagonia lake sediments represent powerful archives of historical and past eruptions since the deglaciation. The lacustrine tephra record is investigated in 10 Holocene sedimentary cores collected in five lakes located along a 45–47° transect through Northern Chilean Patagonia. All the tephras identified by visual observ…
A new multi-proxy record of environmental change over the last 1000 years on Chiloé Island
Knowledge of past environmental and climatic conditions of lake ecosystems on Chiloé Island on a millennial scale is limited. Hence, this study fills a gap in our understanding of this part of southern Chile. The aim of this study was to reconstruct the environmental and climatic history of the last 1000 years of Lake Pastahué through a multi-proxy sediment core analysis. The 1-m-long core was subsampled every centimeter for the organic matter, m…
Volcanic, tectonic and climate controls on lacustrine sedimentary supplies over the last millenia in NE Chilean Patagonia (Lake Esponja, Aysen, 45°S)
The environmental variability of Northern Chilean Patagonia during the last millennia is evaluated using a multi-proxy analysis of sediment cores from Lake Esponja (45°S 72°W) to decipher if the sediment deposition is controlled by volcanic eruptions, landslides induced by earthquake or heavy rainfall. The lake is located in a glacio-tectonic valley in Patagonia. The organic-rich clayey silt sediment with low biogenic silica content was analysed …
Regional signals of recent environmental changes in northern Patagonia through the sediment record of a small lake
Geology and Paleoclimatology Research (7 works) · Geology (6 works) · Geography (5 works) · Climate change (4 works) · Physical geography (4 works) · Ecology (3 works) · Oceanography (3 works) · Paleontology (3 works) · Period (music (3 works) · Tephra (3 works)