Romina Daga
Biographic Data
| ID | 11136111 |
|---|---|
| NAME | Romina Daga |
| GIVEN NAMES | Romina |
| FAMILY NAME | Daga |
| SIGNATURE | DAGA R |
| AFFILIATIONS | Bariloche Atomic Centre |
| ORCID | 0000-0002-7239-3080 |
| VERIFIED | No |
| TOTAL WORKS | 6 |
| TOTAL CITATIONS | 0 |
| AUTHOR COUNT | 6 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 2016 |
| LATEST PUBLICATION YEAR | 2026 |
| H-INDEX | 0 |
Uncovering an eruptive history using new tephra data from Argentine lacustrine cores linked to Chilean volcanoes in the southern segment of the Southern Volcanic Zone
This study examines tephra layers from lacustrine sediment cores collected in Patagonian Andean Range, correlating them with volcanic sources from the southern segment of the Southern Volcanic Zone (SVZ). Ten distinct tephra layers, spanning approximately the last 2000 yr, were identified across four cores from Lakes Rivadavia, La Zeta, Brychan, and Theobald, from ∼42°S to 44°S. Mostly geochemical and mineralogical analyses of tephra components (…
Geochemical and mineralogical characterization of sediments from Lake Futalaufquen (42.8°S, Andean Patagonia) to evaluate their potential as paleoclimatic proxies
Lake sediments are key archives for paleoenvironmental investigation as they provide continuous records of the depositional history of the lake and its watershed. Lake Futalaufquen (42.8°S) is an oligotrophic waterbody located in Los Alerces National Park in the Andes of northern Patagonia, South America. A sedimentary sequence covering 1600 years was recovered to analyze the potential for paleoenvironmental reconstructions of the last millennia.…
Bromine as indicator of source of lacustrine sedimentary organic matter in paleolimnological studies
Bromine (Br) to organic matter (OM) concentration ratio is studied in lake sediment sequences to provide information on environmental changes modifying OM production. The sequences studied were extracted from shallow lakes Morenito, El Trébol, Escondido, and Portezuelo; and deep lakes Futalaufquen, Moreno, and Traful (North Patagonia Andean range). Lake Morenito, a former Lake Moreno bay until its closure in AD 1960, showed a decrease in Br:OM ra…
Response of Chironomidae to environmental disturbances in a high mountain lake in Patagonia during the last millennium
Through the last millennium, Patagonia has been affected by changing climate conditions and successive volcanic eruptions. Lake Tonček is a high-altitude lake in the Southern Volcanic Zone in the northern Patagonian Andes. We documented the responses of the subfossil chironomid community to the effects of successive volcanic and different conditions in a sedimentary sequence from this lake comprising the last 900 years. The community composition …
Reconstruction of the hydrologic history of a shallow Patagonian steppe lake during the past 700 yr, using chemical, geologic, and biological proxies
The limnological conditions during the past 700 yr were reconstructed based on multiproxy analysis of a short sedimentary sequence from El Toro Lake (~40°S, 70°W). Mineralogical and geochemical features, as well as ostracods and chironomids, record hydrologic changes in the El Toro Lake basin. The ostracod Limnocythere rionegroensis var. 1, a reliable indicator of high salinity, and Eucypris fontana , a euryhaline species with preferences for mod…
Chironomids as indicators of natural and human impacts in a 700-yr record from the northern Patagonian Andes
Chironomid communities were studied in a sediment core collected from Lake Moreno Oeste, located in Nahuel Huapi National Park. A major change in midge assemblages occurred at ∼AD 1760, which was characterized by a decrease of “cold taxa” including Polypedilum sp.2 and Dicrotendipes , and an increase of “warm taxa” including Apsectrotanypus and Polypedilum sp.1. These taxa are likely related to climatic conditions concurrent with the end of a col…
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Chironomids as indicators of natural and human impacts in a 700-yr record from the northern Patagonian Andes
Chironomid communities were studied in a sediment core collected from Lake Moreno Oeste, located in Nahuel Huapi National Park. A major change in midge assemblages occurred at ∼AD 1760, which was characterized by a decrease of “cold taxa” including Polypedilum sp.2 and Dicrotendipes , and an increase of “warm taxa” including Apsectrotanypus and Polypedilum sp.1. These taxa are likely related to climatic conditions concurrent with the end of a col…
Reconstruction of the hydrologic history of a shallow Patagonian steppe lake during the past 700 yr, using chemical, geologic, and biological proxies
The limnological conditions during the past 700 yr were reconstructed based on multiproxy analysis of a short sedimentary sequence from El Toro Lake (~40°S, 70°W). Mineralogical and geochemical features, as well as ostracods and chironomids, record hydrologic changes in the El Toro Lake basin. The ostracod Limnocythere rionegroensis var. 1, a reliable indicator of high salinity, and Eucypris fontana , a euryhaline species with preferences for mod…
Bromine as indicator of source of lacustrine sedimentary organic matter in paleolimnological studies
Bromine (Br) to organic matter (OM) concentration ratio is studied in lake sediment sequences to provide information on environmental changes modifying OM production. The sequences studied were extracted from shallow lakes Morenito, El Trébol, Escondido, and Portezuelo; and deep lakes Futalaufquen, Moreno, and Traful (North Patagonia Andean range). Lake Morenito, a former Lake Moreno bay until its closure in AD 1960, showed a decrease in Br:OM ra…
Response of Chironomidae to environmental disturbances in a high mountain lake in Patagonia during the last millennium
Through the last millennium, Patagonia has been affected by changing climate conditions and successive volcanic eruptions. Lake Tonček is a high-altitude lake in the Southern Volcanic Zone in the northern Patagonian Andes. We documented the responses of the subfossil chironomid community to the effects of successive volcanic and different conditions in a sedimentary sequence from this lake comprising the last 900 years. The community composition …
Geochemical and mineralogical characterization of sediments from Lake Futalaufquen (42.8°S, Andean Patagonia) to evaluate their potential as paleoclimatic proxies
Lake sediments are key archives for paleoenvironmental investigation as they provide continuous records of the depositional history of the lake and its watershed. Lake Futalaufquen (42.8°S) is an oligotrophic waterbody located in Los Alerces National Park in the Andes of northern Patagonia, South America. A sedimentary sequence covering 1600 years was recovered to analyze the potential for paleoenvironmental reconstructions of the last millennia.…
Uncovering an eruptive history using new tephra data from Argentine lacustrine cores linked to Chilean volcanoes in the southern segment of the Southern Volcanic Zone
This study examines tephra layers from lacustrine sediment cores collected in Patagonian Andean Range, correlating them with volcanic sources from the southern segment of the Southern Volcanic Zone (SVZ). Ten distinct tephra layers, spanning approximately the last 2000 yr, were identified across four cores from Lakes Rivadavia, La Zeta, Brychan, and Theobald, from ∼42°S to 44°S. Mostly geochemical and mineralogical analyses of tephra components (…
Geology and Paleoclimatology Research (6 works) · Geology (5 works) · Geography (4 works) · Paleontology (4 works) · Physical geography (4 works) · Ecology (3 works) · Isotope Analysis in Ecology (3 works) · Paleolimnology (3 works) · Period (music) (3 works) · Sedimentary rock (3 works)