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In situ cosmogenic 3He and 36Cl and radiocarbon dating of volcanic deposits refine the Pleistocene and Holocene eruption chronology of SW Peru
(Springer, 2019-11-07)
Constraining the age of young lavas, which generally fall outside the effective range of traditional geochronology methods, remains a key challenge in volcanology, limiting the development of high-resolution eruption ...
Cosmogenic dating of rock avalanches constraining Quaternary stratigraphy and regional neotectonics in the Argentine Central Andes (32° S)
(Pergamon-Elsevier Science Ltd, 2015-03)
This paper provides a comprehensive review of the chronostratigraphy of six rock avalanches clustered in the northern extreme of the Cordon del Plata range. These rock avalanches are stratigraphically related to Pleistocene ...
Paleoseismology of the Mejillones Fault, northern Chile: Insights from cosmogenic Be-10 and optically stimulated luminescence determinations
(2012)
We have undertaken the first paleoseismological study on an upper plate fault in Chile. The selected structure was the Mejillones Fault, which is marked by a conspicuous fault-scarp. Using cosmogenic 10Be and OSL dating ...
Cosmogenic record of the evolution of tropical glaciers In the Piticocha Valley – Pariaqaqa mountain range (Lima - Peru)
(Universidad de Ingeniería y TecnologíaPE, 2019-08)
The Piticocha Valley is located on the southwest side of Pariaqaqa Peak (11 ° 59'39.53 "S; 75 ° 59'35.74" W; 5758 m.s.n.m) in the Western Central Andes. 35 samples of moraines blocks and rock beds were obtained, to be dated ...
10Be surface exposure dating of the last deglaciation in the Aare Valley, Switzerland
(Birkhauser Verlag Ag, 2018-04)
The combined Rhone and Aare Glaciers presumably reached their last glacial maximum (LGM) extent on the Swiss Plateau prior to 24 ka. Two well-preserved, less extensive moraine stades, the Gurten and Bern Stade, document ...
Late Quaternary Activity of the La Rinconada Fault Zone, San Juan, Argentina
(American Geophysical Union, 2019-03)
Most of the permanent deformation in the Pampean Flat slab segment of the central Andes is taken up at the Andean Orogenic Front in Argentina, a narrow zone between the Eastern Precordillera and Sierras Pampeanas that ...
Glacial dynamics in southernmost South America during Marine Isotope Stage 5e to the Younger Dryas chron: a brief review with a focus on cosmogenic nuclide measurements
(JOHN WILEY & SONS, 2008-10)
The timing of major glacial changes between Marine Isotope Stage (MIS) 5e and the Younger Dryas chron (YD) in southern South America is reviewed. Focus is placed on studies that use cosmogenic nuclide measurements. However, ...
Holocene glacier behavior around the northern Antarctic Peninsula and possible causes
(Elsevier, 2020)
We obtained 49 new Be-10 ages that document the activity of the former Northern Antarctic Peninsula Ice Sheet, and subsequently the James Ross Island Ice Cap and nearby glaciers, from the end of the last glacial period ...
First cosmogenic ages for glacial deposits from the Plata range (33° S): New inferences for Quaternary landscape evolution in the Central Andes
(Pergamon-Elsevier Science Ltd, 2017-05)
This paper presents the first numerical cosmogenic ages of glacial deposits from the eastern slope of the Plata peak (6000) in the arid Central Andes (32° S). The moraines are distributed along three different valleys: ...