Climate variability at the southern boundaries of the Namib (southwestern Africa) and Atacama (northernChile) coastal deserts during the last 120,000 yr
The AA. present grain-size distribution of the terrigenous fraction of two deep-sea sediment cores from the SE Atlantic (offshore Namibia) and from the SE Pacific (offshore northernChile), which they unmix into subpopulations and which
in continental aridity in southwestern Africa and northernChile to changes in the latitudinal position of the moisture-bearing Southern Westerlies.
Radiocarbon reservoir effect and the timing of the Late-Glacial/Early Holocene humid phase in the Atacama Desert (NorthernChile)
Andes ; Archaeology ; C 14 dating ; Chile ; Geochronology ; High mountain ; Holocene ; Lacustrine sediment ; Lake level ; Lateglacial ; Palaeoclimatology ; Quaternary
The AA. revise substantially the regional chronology of lake-level fluctuations from the late-glacial/early Holocene humid phase along a high altitude transect between 18°S and 28°S in the Southwestern Altiplano of NorthernChile. Radiocarbon dates
with vegetation changes in subtropical continental South America, and with the onset of wetland expansion in the northern hemisphere tropics.
Mollusk aminostratigraphy of Quaternary marine terrace sediments at Coquimbo Bay, Chile, combined with recently available electron spin resonance (ESR) ages, necessitates revision of the northern Chilean relative sea-level and terrace chronology
Glacial geomorphologic maps of Llanquihue drift in the area of the southern Lake District, Chile
Glacial and vegetational history of the Southern Lake District of Chile
C 14 dating ; Chile ; Geomorphological map ; Glacial features ; Kame ; Lateglacial ; Moraine ; Palaeo-environment ; Piedmont ; Pollen analysis ; Stratigraphy
The AA. present 4 glacial geomorphic maps of Llanquihue drift in the region of the southern Lake District, Seno Reloncaví, and the eastern half of northern Isla Grande de Chiloé, Chile. These maps form the basis of an interdisiplinary research
westward from the Andes into the Valle Central to fill Lago Puyehue, Lago Rupanco, Lago Llanquihue, Seno reloncaví, Golfo de Ancud, and northern Gulfo Corcovado.
The AA. compare 2 high-resolution records, the Chilean grass record and the Northern Hemisphere ice-core data. While there is ample evidence for a high degree of similarity between the data, evidence also exists for substantial dissimilarities
Mid-Holocene climate and culture change in the Atacama Desert, northernChile
Archaeology ; Archeological site ; C 14 dating ; Chile ; Geochemistry ; Geochronology ; Holocene ; Mudflow ; Palaeo-environment ; Palaeobiogeography ; Palaeoclimate ; Rainstorm ; Sedimentary structure
The new site in Quebrada Puripica (Atacama basin, northernChile) provides information about both the archaeological and the paleoclimatological questions and sheds light on an interesting period. The exceptional combination of archaeological
The AA. present catchment-wide denudation rates from the western central Andes of northernChile deduced from multiple terrestrial cosmogenic nuclides (TCN). Finally, they will discuss the data in a regional context with process rate data covering
Floristic and physiognomic features allow a differentiation of 5 Loma formations, each of them characterized by a distinctive spectrum of plant communities. However, particularly in the northern section of the investigation area, numerous
A simple model accounting for the uptake, transport, and deposition of wind-eroded mineral particles in the hyperarid coastal Atacama Desert of northernChile
Aeolian features ; Aeolian transport ; Arid area ; Chile ; Desert ; Model ; Pampa ; Wind erosion ; Wind speed
Recent studies of sediment cores collected at the bottom of Mejillones Bay in north Chile (23°S) show a laminated structure in which the amount of particles of aeolian origin and their size create significant differences between the layers
[b2] Dep. de Geología, fac. de Ciencias Físicas y Matemáticas, Univ. de Chile, Santiago, Chili
Campo árido ; Chile ; Cuenca hidrográfica ; Desierto ; Endorreismo ; Geomorfometría ; Hidrología ; Modelización ; Red de drenaje
The aim of this study is to better understand the basin morphology of endorheic river basins by using well-known geomorphological properties and their variations across scales. For 3 basins in northernChile the AA. computed the following
[b1] Dep. de Ingeniería Hidráulica Ambiental, Pontificia Univ. Católica de Chile, Santiago, Chili