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Showing 1 to 20 of 43 for “"Central Andes"”.
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Seismicity, tectonics, and surface wave propagation in the central Andes
Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Earth and Planetary Sciences, 1983.
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Mountain-range uplift & climate-system interactions in the Southern Central Andes
Zwei häufig diskutierte Aspekte der spätkänozoischen Gebirgsbildung der Anden sind der Zeitpunkt sowie die Art und Weise der Heraushebung des Puna-Plateaus und seiner Randgebiete innerhalb der Ostkordillere und die damit verbundenen klimatischen Änderungen in NW Argentinien. Die Ostkordillere …
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Regional Deformation and Dynamic Processes of the Southern Puna Plateau, Central Andes
The southern Puna Plateau of the central Andes offers an excellent opportunity to (1) advance our understanding in orogenic models for non-collisional mountain belts, (2) test Earth’s upper-crustal responses to lower lithospheric processes, and (3) explore uses of low-temperature thermochronology …
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Quantifying The Properties Of Magmatic Intrusions In The Central Andes With Geodesy
… thesis investigates volcanic deformation in the Central Andes Volcanic Zone of South America (CVZ, 15-28? S). The CVZ is one of three distinct volcanic arc segments in the Andes that results from the subduction of the Nazca Plate beneath the South America Plate. To begin, I compile available …
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The Potosi-Cobija route: archaeology of colonial transportation in the south Central Andes
… of colonial commerce and smuggling in the South Central Andes. A total of 34 archaeological sites were identified on the route using a methodology constituted by remote sensing and archaeological inspection of targets. This case is used to discuss the modern European imperial economic control of …
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The Cupisnique Culture in the Formative Period World of the Central Andes, Peru
… Valley and those in the other areas of the Central Andes. Based on a ceramic analysis, a seven-phase chronology for the Andean Formative Period is proposed. Integrating the results of the analyses of site features and settlement patterns as well as the information about the natural …
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Climate variability and extreme hydro-meteorological events in the Southern Central Andes, NW Argentina
… areas, such as the eastern flank of the southern Central Andes of NW Argentina, a region impacted by deep convection processes that form the basis of extreme events, often resulting in floods, a variety of mass movements, and hillslope processes. This region is characterized by pronounced E-W …
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Volcano deformation analysis in the Lazufre area (central Andes) using geodetic and geological observations
… of the Lazufre volcanic area located in the central Andes, we combined short-term ground displacement acquired by InSAR with long-term geological observations. Ground displacement was first detected using InSAR in 1997. By 2008, this displacement affected 1800 km2 of the surface, an area …
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The Social Life of Death: Mortuary Practices in the North-Central Andes, 11th-18th centuries
… in funerary practices in the North-Central Andes from AD 1000 to 1799, a period covering both the Inca and Spanish colonisations. This research demonstrates how historical events, political actions and manipulation can affect the habitus of a society. By studying the ways that people …
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Integrated field investigation, numerical analysis and hazard assessment of the Portillo Rock Avalanche site, Central Andes, Chile
… a rock slope hazard investigation located in the Central Andes of Chile, where two significant rock mass wasting events were recognized. Dating using cosmogenic nuclide for ³⁶Cl showed that the deposits were post-glacial in age, corresponding to the Upper Pleistocene Portillo Rock Avalanche (PRA) …
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Behavior of Hybrid Thick- and Thin-Skinned Orogenic Wedges in the Western Interior USA and South-Central Andes
… enabling a comparison of the actively forming Andes with their ancient counterpart in North America. Despite this advantageous geologic situation, fundamental questions remain concerning the long-term structural, thermal, and kinematic behavior of thrust belts. Cordilleran systems are …
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Why are there no low-δ18O magmas In convergent margins? A case of the Central Andes, Northern Chile
… to conduct a search for low-δ 18O magmas in the Central Volcanic Zone (CVZ) of the Andes, to verify if their rarity is due to under sampling. If no low-δ18O magmas were found, the question of why low-δ 18O magmas have appeared to be absent from the region would be addressed. This study has …
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Distribution and Rates of Quaternary Deformation within the Pampean Flat Slab Segment of the Central Andes of Argentina from 30-32°S
The Pampean Flat Slab is characterized by a wide zone of active upper-plate deformation that involves both thin- and thick-skinned deformation. It provides a rare opportunity to explore the possible control of slab geometry, deformation style, and tectonic evolution of structures on upper-plate …
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THE PACE AND TIMING OF CHANGING LANDSCAPES AS VIEWED THROUGH COSMOGENIC RADIONUCLIDES: SYNTHETIC AND REAL EXAMPLES FROM THE CENTRAL ANDES AND AMAZONIA
… the pace and timing of landscape change in the Central Andes of Argentina and Central Amazonia.</p> <p>To date, the limits and assumptions embedded in the use of paleo-erosion rates have only been lightly addressed in the literature. No tool exists for the assessment of the sensitivity of …
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The pearl divers of Los Frailes: Archaeological and ethnohistorical explorations of sumptuary good trade and cosmology in the North and Central Andes
… and the ethnohistory of the North and Central Andes in the immediate pre-Contact period.
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Ancient DNA from pre-Columbian South America
… and diversity of ancient civilizations in the Central Andes of South America prior to the arrival of Europeans. I used a combination of traditional PCR-based methods and the latest technological advances for DNA analysis (i.e. Next-Generation Sequencing – NGS) to generate high-resolution mtDNA …
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Assessing Landscape Change in Highland Peru with an Emphasis on Tree Cover Change, 1948-2012
… change was examined around three cities in the central Andes of Peru, 1948-2012, using repeat photography, remote sensing, and ethnographic methods. Forest transition theory provided a framework to study the causes of the changes observed. The repeat photography results show that there were more …
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The Marcona - Mina Justa District, South-Central Perú: Implications for the Genesis and Definition of the Iron Oxide-Copper (-Gold) Ore Deposit Clan
The Marcona district of littoral south-central Perú represents the largest concentration of iron oxide-copper-gold deposits in the Central Andes. Hydrothermal activity occurred episodically from 177 to 95 Ma and was controlled by NE-striking faults. At Marcona, emplacement of massive magnetite …
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The art of the spearthrower: understanding the Andean Estólica through iconography
… were used by the people of the ancient central Andes, comparatively little research has gone into the role that they had as weapons of war, hunting tools, and objects of ceremonial reverence. In addition, the Andes developed a unique style of spearthrower and have produced many examples …
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