Roberto Urrutia
Biographic Data
| ID | 3599817 |
|---|---|
| NAME | Roberto Urrutia |
| GIVEN NAMES | Roberto |
| FAMILY NAME | Urrutia |
| SIGNATURE | URRUTIA R |
| AFFILIATIONS | University of Concepción |
| ORCID | 0000-0002-6239-9016 |
| VERIFIED | Yes |
| TOTAL WORKS | 19 |
| TOTAL CITATIONS | 12 |
| WORKS AS AUTHOR | 19 |
| WORKS AS EDITOR | 0 |
| FIRST PUBLICATION YEAR | 2002 |
| LATEST PUBLICATION YEAR | 2026 |
| H-INDEX | 2 |
Regional signals of recent environmental changes in northern Patagonia through the sediment record of a small lake
Sedimentary indicators of anthropogenic impact in Fildes Peninsula lakes (King George Island, Maritime Antarctica)
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 …
Fossil pigments and environmental conditions in the oligotrophic Laja Lake in the Chilean Andes
Reconstruyendo la degradación ambiental del Lago Vichuquén, Región del Maule, Chile, mediante el uso de registros históricos-documentales
Through a historical-documentary analysis the environmental condition of Vichuquén lake and its adjacent area was reconstructed between the 19th and 20th centuries. The obtained results allowed to determine the natural landscape transformations provoked by the human intervention. It was established that until the end of 19th century the environmental intervention would have been moderate, but was during this period when a more intensified human i…
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…
A 600 years warm-season temperature record from varved sediments of Lago Plomo, Northern Patagonia, Chile (47°S)
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…
Quantitative high-resolution winter (JJA) precipitation reconstruction from varved sediments of Lago Plomo 47°S, Patagonian Andes, ad 1530–2002
High-resolution climate reconstructions from a range of natural archives across the world are fundamental to place current climate change into perspective. Paleoclimate records for the Southern Hemisphere are scarce and only a few quantitative high-resolution reconstructions exist for the past millennium. We present a record of annually laminated sediments of Lago Plomo (46°59′S, 72°52′W,203 m a.s.l.) located east of the Northern Patagonian Ice F…
Pérdida y fragmentación del bosque nativo en la cuenca del río Aysén (Patagonia-Chile) durante el siglo XX
En este trabajo se estim la prdida y fragmentacin de bosque nativo en la cuenca del ro Aysn, ocurrida entre los aos 1900 y 1998, debido principalmente a incendios forestales producto de la colonizacin del territorio. En la reconstruccin de la cobertura boscosa fueron de gran utilidad distintos registros histricos y el sistema de informacin geogrfica (SIG ArcView 3.2). Se aplicaron diferentes ndices del paisaje (rea, densidad y tamao del fragmento…
A quantitative high-resolution summer temperature reconstruction based on sedimentary pigments from Laguna Aculeo, central Chile, back to AD 850
We present a pigment-based quantitative high-resolution (five years) austral summer DJF (December to February) temperature reconstruction for Central Chile back to AD 850. We used non-destructive in situ multichannel reflection spectrometry data from a short sediment core of Laguna Aculeo (33°50′S/70°54′W, 355 m a.s.l., central Chile). Calibration-in-time (period AD 1901—2000, cross-validated with split periods) revealed robust correlations betwe…
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…
Los paisajes del agua en la cuenca del río Baker
A partir de la definición de paisaje (que es parte del marco teórico de la tesis) se desarrolla una propuesta para la evaluación del paisaje en función de sus valores estéticos, ambientales, sociales y territoriales
Temporal evolution of sediment supply in Lago Puyehue (Southern Chile) during the last 600 yr and its climatic significance
Short-term climate changes in Southern Chile are investigated by a multi-proxy analysis of a 53-cm-long sedimentary sequence selected among eight short cores retrieved in Lago Puyehue (Chile, 40°S). This core contains a 600-yr-long undisturbed record of paleo-precipitation changes. Two measurement methods for sediment density, organic matter and biogenic silica contents are compared and the most appropriate techniques are selected. Together with …
Early to Mid-Holocene Aridity in Central Chile and the Southern Westerlies
Central Chile (32–35°S) lies at the northern border of strong Westerly influence and thus exhibits a steep precipitation gradient. Therefore, the palaeoclimatic archives in the region are suitable for detecting past moisture changes. The study of Laguna Aculeo (33°50'S, 70°54'W) presents a multiproxy Holocene lake record including sedimentology, geochemistry, mineralogy, pollen, diatoms, and radiocarbon dating (17 dates). Results indicate an arid…
Moisture changes and fluctuations of the Westerlies in Mediterranean Central Chile during the last 2000 years
A quantitative high-resolution summer temperature reconstruction based on sedimentary pigments from Laguna Aculeo, central Chile, back to AD 850
We present a pigment-based quantitative high-resolution (five years) austral summer DJF (December to February) temperature reconstruction for Central Chile back to AD 850. We used non-destructive in situ multichannel reflection spectrometry data from a short sediment core of Laguna Aculeo (33°50′S/70°54′W, 355 m a.s.l., central Chile). Calibration-in-time (period AD 1901—2000, cross-validated with split periods) revealed robust correlations betwe…
Quantitative high-resolution winter (JJA) precipitation reconstruction from varved sediments of Lago Plomo 47°S, Patagonian Andes, ad 1530–2002
High-resolution climate reconstructions from a range of natural archives across the world are fundamental to place current climate change into perspective. Paleoclimate records for the Southern Hemisphere are scarce and only a few quantitative high-resolution reconstructions exist for the past millennium. We present a record of annually laminated sediments of Lago Plomo (46°59′S, 72°52′W,203 m a.s.l.) located east of the Northern Patagonian Ice F…
Fossil pigments and environmental conditions in the oligotrophic Laja Lake in the Chilean Andes
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…
Early to Mid-Holocene Aridity in Central Chile and the Southern Westerlies
Central Chile (32–35°S) lies at the northern border of strong Westerly influence and thus exhibits a steep precipitation gradient. Therefore, the palaeoclimatic archives in the region are suitable for detecting past moisture changes. The study of Laguna Aculeo (33°50'S, 70°54'W) presents a multiproxy Holocene lake record including sedimentology, geochemistry, mineralogy, pollen, diatoms, and radiocarbon dating (17 dates). Results indicate an arid…
Moisture changes and fluctuations of the Westerlies in Mediterranean Central Chile during the last 2000 years
Temporal evolution of sediment supply in Lago Puyehue (Southern Chile) during the last 600 yr and its climatic significance
Short-term climate changes in Southern Chile are investigated by a multi-proxy analysis of a 53-cm-long sedimentary sequence selected among eight short cores retrieved in Lago Puyehue (Chile, 40°S). This core contains a 600-yr-long undisturbed record of paleo-precipitation changes. Two measurement methods for sediment density, organic matter and biogenic silica contents are compared and the most appropriate techniques are selected. Together with …
Los paisajes del agua en la cuenca del río Baker
A partir de la definición de paisaje (que es parte del marco teórico de la tesis) se desarrolla una propuesta para la evaluación del paisaje en función de sus valores estéticos, ambientales, sociales y territoriales
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 quantitative high-resolution summer temperature reconstruction based on sedimentary pigments from Laguna Aculeo, central Chile, back to AD 850
We present a pigment-based quantitative high-resolution (five years) austral summer DJF (December to February) temperature reconstruction for Central Chile back to AD 850. We used non-destructive in situ multichannel reflection spectrometry data from a short sediment core of Laguna Aculeo (33°50′S/70°54′W, 355 m a.s.l., central Chile). Calibration-in-time (period AD 1901—2000, cross-validated with split periods) revealed robust correlations betwe…
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…
Quantitative high-resolution winter (JJA) precipitation reconstruction from varved sediments of Lago Plomo 47°S, Patagonian Andes, ad 1530–2002
High-resolution climate reconstructions from a range of natural archives across the world are fundamental to place current climate change into perspective. Paleoclimate records for the Southern Hemisphere are scarce and only a few quantitative high-resolution reconstructions exist for the past millennium. We present a record of annually laminated sediments of Lago Plomo (46°59′S, 72°52′W,203 m a.s.l.) located east of the Northern Patagonian Ice F…
Pérdida y fragmentación del bosque nativo en la cuenca del río Aysén (Patagonia-Chile) durante el siglo XX
En este trabajo se estim la prdida y fragmentacin de bosque nativo en la cuenca del ro Aysn, ocurrida entre los aos 1900 y 1998, debido principalmente a incendios forestales producto de la colonizacin del territorio. En la reconstruccin de la cobertura boscosa fueron de gran utilidad distintos registros histricos y el sistema de informacin geogrfica (SIG ArcView 3.2). Se aplicaron diferentes ndices del paisaje (rea, densidad y tamao del fragmento…
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…
A 600 years warm-season temperature record from varved sediments of Lago Plomo, Northern Patagonia, Chile (47°S)
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…
Reconstruyendo la degradación ambiental del Lago Vichuquén, Región del Maule, Chile, mediante el uso de registros históricos-documentales
Through a historical-documentary analysis the environmental condition of Vichuquén lake and its adjacent area was reconstructed between the 19th and 20th centuries. The obtained results allowed to determine the natural landscape transformations provoked by the human intervention. It was established that until the end of 19th century the environmental intervention would have been moderate, but was during this period when a more intensified human i…
Fossil pigments and environmental conditions in the oligotrophic Laja Lake in the Chilean Andes
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 …
Sedimentary indicators of anthropogenic impact in Fildes Peninsula lakes (King George Island, Maritime Antarctica)
Regional signals of recent environmental changes in northern Patagonia through the sediment record of a small lake
Geography (14 works) · Geology and Paleoclimatology Research (14 works) · Geology (13 works) · Physical geography (11 works) · Climate change (10 works) · Oceanography (9 works) · Tree-ring climate responses (8 works) · Archaeology (6 works) · Climatology (6 works) · Geomorphology (6 works)