Late Pleistocene–Early Holocene human settlement and environmental dynamics in the southern Atacama Desert highlands (24.0°S–24.5°S, Northern Chile)

2021 ◽  
Author(s):  
Patricio Souza ◽  
Isabel Cartajena ◽  
Rodrigo Riquelme ◽  
Antonio Maldonado ◽  
María E. Porras ◽  
...  
Keyword(s):  
Late Pleistocene ◽  
Atacama Desert ◽  
Early Holocene ◽  
Northern Chile ◽  
Human Settlement

scholarly journals Widespread glasses generated by cometary fireballs during the late Pleistocene in the Atacama Desert, Chile

Geology ◽  
2021 ◽  
Author(s):  
Peter H. Schultz ◽  
R. Scott Harris ◽  
Sebastián Perroud ◽  
Nicolas Blanco ◽  
Andrew J. Tomlinson
Keyword(s):  
Climate Change ◽  
Southern Hemisphere ◽  
Late Pleistocene ◽  
Atacama Desert ◽  
Silicate Glasses ◽  
Northern Chile ◽  
Broad Distribution ◽  
Hunter Gatherers ◽  
Rapid Climate Change ◽  
Low Altitude

Twisted and folded silicate glasses (up to 50 cm across) concentrated in certain areas across the Atacama Desert near Pica (northern Chile) indicate nearly simultaneous (seconds to minutes) intense airbursts close to Earth’s surface near the end of the Pleistocene. The evidence includes mineral decompositions that require ultrahigh temperatures, dynamic modes of emplacement for the glasses, and entrained meteoritic dust. Thousands of identical meteoritic grains trapped in these glasses show compositions and assemblages that resemble those found exclusively in comets and CI group primitive chondrites. Combined with the broad distribution of the glasses, the Pica glasses provide the first clear evidence for a cometary body (or bodies) exploding at a low altitude. This occurred soon after the arrival of proto-Archaic hunter-gatherers and around the time of rapid climate change in the Southern Hemisphere.

Hunter-Gatherer Mobility Strategies in the High Andes of Northern Chile during the Late Pleistocene-Early Holocene Transition (ca. 11,500–9500 CAL B.P.)

2017 ◽  
Vol 42 (3) ◽  
pp. 228-240 ◽  
Author(s):  
Daniela Osorio ◽  
José M. Capriles ◽  
Paula C. Ugalde ◽  
Katherine A. Herrera ◽  
Marcela Sepúlveda ◽  
...  
Keyword(s):  
Late Pleistocene ◽  
Early Holocene ◽  
Northern Chile ◽  
Mobility Strategies

scholarly journals Late Pleistocene human occupation of the hyperarid core in the Atacama Desert, northern Chile

2013 ◽  
Vol 77 ◽  
pp. 19-30 ◽  
Author(s):  
Claudio Latorre ◽  
Calogero M. Santoro ◽  
Paula C. Ugalde ◽  
Eugenia M. Gayo ◽  
Daniela Osorio ◽  
...  
Keyword(s):  
Late Pleistocene ◽  
Atacama Desert ◽  
Northern Chile ◽  
Human Occupation

Palaeo-ecology and Pleistocene human occupation in south central Tasmania

Antiquity ◽  
1990 ◽  
Vol 64 (242) ◽  
pp. 59-78 ◽  
Author(s):  
Richard Cosgrove ◽  
Jim Allen ◽  
Brendan Marshall
Keyword(s):  
Late Pleistocene ◽  
Early Holocene ◽  
Human Settlement ◽  
Human Occupation ◽  
Faunal Assemblages ◽  
South Central

Evidence for the late-Pleistocene and early-Holocene settlement of Tasmania is now offered by a growing number of sites in a variety of landscapes; among the more remarkable finds are cave-sites with evidence for human settlement of periglacial uplands before 30,000 BP. Good faunal assemblages and environmental records allow the reconstruction of a subsistence system different in character from those modelled on a European Pleistocene prototype.

Radiocarbon Reservoir Effect and the Timing of the Late-Glacial/Early Holocene Humid Phase in the Atacama Desert (Northern Chile)

1999 ◽  
Vol 52 (2) ◽  
pp. 143-153 ◽  
Author(s):  
Mebus A. Geyh ◽  
Martin Grosjean ◽  
Lautaro Núñez ◽  
Ulrich Schotterer
Keyword(s):  
Lake Level ◽  
Atacama Desert ◽  
Late Glacial ◽  
Early Holocene ◽  
Vegetation Changes ◽  
Northern Chile ◽  
Lake Levels ◽  
Human Occupation ◽  
Radiocarbon Dates ◽  
History Of

We revise substantially the regional chronology of lake-level fluctuations from the late-glacial/early Holocene humid phase along a high altitude transect (3500 to 4500 m) between 18°S and 28°S in the Southwestern Altiplano of Northern Chile. Radiocarbon dates and 210Pb profiles for limnic and terrestrial materials allow us to estimate and justify reservoir correction values for conventional 14C dates. Our chronology suggests that the latest Pleistocene/early Holocene humid phase started between 13,000 and 12,000 14C yr B.P., and that maximum lake levels were reached between 10,800 and 9200 14C yr B.P. This is significantly younger than what has been established so far for the Titicaca–Uyuni Basin in Bolivia. The paleolakes disappeared sometime between 8400 and 8000 14C yr B.P. Our revised chronology agrees with the regional history of human occupation, and is broadly synchronous with vegetation changes in subtropical continental South America, and with the onset of wetland expansion in the northern hemisphere tropics.

Obsidian Hydration Dating and Temperature Controls in the Punta Negra Region of Northern Chile

1992 ◽  
Vol 37 (1) ◽  
pp. 117-124 ◽  
Author(s):  
Thomas F. Lynch ◽  
Christopher M. Stevenson
Keyword(s):  
Air Temperature ◽  
Atacama Desert ◽  
Compositional Analysis ◽  
Northern Chile ◽  
Human Settlement ◽  
Hydration Rate ◽  
Early Archaic ◽  
Dating Methods ◽  
Temperature Records ◽  
Rate Development

AbstractEffective hydration temperature (EHT) is essential for the computation of obsidian hydration dates. In the Atacama Desert, the scarcity of air-temperature records combines with extremes of elevation and local temperature to encourage, or even require, the use of buried thermal cells to record on-site mean annual temperatures. Compositional analysis (sourcing) and hydration rate development in the laboratory are also necessary, especially where other dating methods are unavailable to confirm the hydration rate. Paleoindian or Early Archaic through modern obsidian dates support a human settlement pattern history derived from archaeological/geomorphological studies of climatological and hydrological change.

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