Buscar
Mostrando ítems 61-70 de 2646
Holocene history of río tranquilo glacier, monte San Lorenzo (47°S), Central Patagonia
(Frontiers Media, 2021)
The causes underlying Holocene glacier fluctuations remain elusive, despite decades of
research efforts. Cosmogenic nuclide dating has allowed systematic study and thus
improved knowledge of glacier-climate dynamics ...
Impact of whale-watching on the short-term behavior of Southern right whales (Eubalaena australis) in Patagonia, Argentina
(Elsevier, 2016-04)
In the last 30 years, whale watching tours in Patagonia, which are primarily based on viewing pods of Southern right whale, have become increasingly popular. The aim of this study was to evaluate the impact of whale watching ...
Tree-ring growth patterns and temperature reconstruction from Nothofagus pumilio (Fagaceae) forests at the upper tree line of southern Chilean Patagonia
(Sociedad de Biología de Chile, 2002)
New provenience analysis of Late Holocene archaeological obsidians from southern Patagonia (Santa Cruz province, Argentina)
(International Association of Obsidian Studies, 2017-06)
X-ray fluorescence (XRF) and neutron activation analysis (NAA) methods were employed on a sample of obsidians from Santa Cruz province (southern Argentina). Results obtained from 81 specimens from two sources and a number ...
Determining the provenance of obsidian in southern Patagonia using optical properties
(Wiley, 2014-07)
This paper aims to evaluate the optical properties of natural rhyolite obsidians that might be useful in the identification of different sources of archaeological samples. Even though colour, degree of alteration, crystaloclast ...
Lithic taphonomy in desert environments: Contributions from Fuego-Patagonia (Southern South America)
(Pergamon-Elsevier Science Ltd, 2016-11)
This paper focuses on the contributions of taphonomic approaches to the study of lithic assemblages. Based on actualistic and archaeological case studies from Fuego-Patagonia (South America), here I summarize some of the ...
Changes in lithic technology and environment in southern continental Patagonia: The Chico and Santa Cruz River basins
(Pergamon-Elsevier Science Ltd, 2016-11)
Changes in artifact technology and environment during the Holocene are documented, within an organization of technology framework, for three different regions of Patagonia. Possible relationships between environmental ...
Landscape Evolution of Southern Patagonia
(E Schweizerbartsche Verlags, 2000-12)
Investigations have been focused on the glacial history and valley development in the region of the terminal basins Lago Argentino, Lago Viedma and the adjacent Río Santa Cruz and Río Shehuen Valleys, as well as on the ...