Denisse Álvarez
Biographic Data
| ID | 3636845 |
|---|---|
| NAME | Denisse Álvarez |
| GIVEN NAMES | Denisse |
| FAMILY NAME | Álvarez |
| SIGNATURE | ALVAREZ D |
| AFFILIATIONS | University of Concepción |
| ORCID | 0000-0001-8471-7380 |
| VERIFIED | Yes |
| TOTAL WORKS | 7 |
| TOTAL CITATIONS | 3 |
| AUTHOR COUNT | 7 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 2015 |
| 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 …
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…
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…
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…
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 …
Regional signals of recent environmental changes in northern Patagonia through the sediment record of a small lake
Geology (5 works) · Geology and Paleoclimatology Research (5 works) · Climate change (4 works) · Ecology (4 works) · Biology (3 works) · Geography (3 works) · Oceanography (3 works) · Paleontology (3 works) · Tephra (3 works) · Volcano (3 works)