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| Tocorpuri | |
|---|---|
| Name | Tocorpuri |
| Elevation m | 5804 |
| Location | Border of Chile and Bolivia |
| Range | Andes |
| Type | Stratovolcano / Volcanic complex |
| Last eruption | Holocene (uncertain) |
Tocorpuri is a volcanic complex in the high Andes straddling the border between Chile and Bolivia. The complex forms part of the Central Volcanic Zone near other named edifices and is notable for its high-elevation domes, lava flows, fumarolic fields and extensive ignimbrite sheets. Tocorpuri has been the subject of geological surveys, remote sensing studies, and cultural interest by indigenous groups and modern scientific institutions.
The name Tocorpuri appears in colonial-era Spanish Empire maps and later regional gazetteers compiled by institutions such as the Instituto Geográfico Militar (Chile) and the Servicio Nacional de Geología y Minería of Chile and the Servicio Nacional de Geología y Hidrocarburos of Bolivia. Toponymic studies referencing mapa colonial archives, Alexander von Humboldt travel accounts, and Padre Diego de Rosales chronicles relate the name to Aymara and Quechua linguistic roots examined by researchers at Universidad de Chile, Universidad de La Paz and the Smithsonian Institution. Cartographers from the British Admiralty, the Instituto Geográfico Nacional (Spain), and the USGS have used variations in 19th- and 20th-century atlases, while modern editions from National Geographic and the Royal Geographical Society standardize the spelling. Ethnolinguistic scholarship by Claude Lévi-Strauss-influenced researchers and fieldworkers from Universidad Nacional de Córdoba and Pontificia Universidad Católica de Chile has explored connections to local place-names recorded by Alexander Mackenzie-era explorers, Charles Darwin correspondence, and Jesuit missionary reports.
Tocorpuri sits within the Central Volcanic Zone of the Andes adjacent to volcanic neighbors including Sairecabur, Licancabur, Lascar, Irazu-group references, and is proximal to Quaternary centers mapped by teams from INETER and CONICET. The complex lies near endorheic basins and salt flats such as the Salar de Uyuni, Salar de Atacama, and drainage systems studied by researchers from Universidad de Antofagasta and Universidad de San Andrés. Regional tectonics involve the subduction of the Nazca Plate beneath the South American Plate, a dynamic described in literature by W. Jason Morgan, Daniel J. Macdonald, K. V. Subbarao and seismic catalogs maintained by IRIS and the International Seismological Centre. Geochemical mapping by teams affiliated with Geological Survey of Canada, Universidad de Chile, and CSIC links Tocorpuri to arc magmatism documented in the works of R. S. J. Sparks and Bruce Houghton.
The Tocorpuri complex comprises multiple vents, lava domes, pyroclastic deposits and basaltic-andesitic to dacitic units characterized in petrological studies by researchers at University of Cambridge, Massachusetts Institute of Technology, University of California, Berkeley, and ETH Zurich. Morphological analysis using satellite data from Landsat, ASTER, Sentinel-2, and radar surveys by RADARSAT and SRTM have been used by teams from NASA and ESA to map edifices, collapse features, and flank morphologies. Structural relations to regional lineaments identified in work by Peter Molnar and Paul Tapponnier show alignment with fault systems cataloged by Instituto Geográfico Militar (Chile) and Servicio Geológico Minero (Argentina), with crater rims and talus slopes documented in field campaigns led by researchers from Universidad Católica del Norte, Universidad de Chile, and international collaborators from University of Tokyo and Seikei University.
Stratigraphic studies, radiometric dating (including K–Ar and Ar–Ar methods) carried out by laboratories at University of Oxford, ETH Zurich, and Lamont–Doherty Earth Observatory have constrained Tocorpuri's activity to Pleistocene and probable Holocene phases noted in regional compilations by USGS and the Geological Society of America. Tephrochronology linking Tocorpuri deposits to distal layers investigated in cores by teams from British Antarctic Survey, IFREMER, and Geological Survey of Japan provides correlations cited alongside eruptions of Lascar and Láscar-era sequences. Geochemical signatures compared to works by J. G. Fitton and S. R. Hart indicate variable magma evolution, and geothermal anomalies recorded by surveys involving ENAP and Yacimientos Petrolíferos Fiscales point to fumarolic activity monitored by groups from Universidad de Valparaíso and the Centro de Estudios Científicos (CECs).
At high elevation near Tocorpuri, puna and high-Andean ecosystems host specialist flora and fauna documented by biologists from Universidad Mayor de San Simón, Museo Nacional de Historia Natural (Chile), CONAF, and the Royal Botanic Gardens, Kew. Vegetation surveys reference species inventories maintained by IUCN, BirdLife International, and conservation groups such as WWF that include high-altitude grasses, cushion plants and endemic taxa described in catalogs from Smithsonian Tropical Research Institute and Field Museum. Avifauna records cite presence of species monitored by SERNAP and Aves Argentinas, while climate at Tocorpuri is characterized in climatological datasets from NOAA, World Meteorological Organization, IPCC reports and regional observations by Servicio Meteorológico Nacional (Argentina) showing cold, arid conditions and significant diurnal temperature variation.
Archaeological and anthropological research by teams from Pontificia Universidad Católica del Perú, Universidad de Chile, Museo Nacional de Arqueología (Bolivia), and the British Museum has documented pre-Columbian ritual use of high Andean summits by Aymara and Atacameño communities, paralleling studies at Licancabur and Llullaillaco. Ethnohistoric sources from Spanish Empire archives, missionary records at Archivo General de Indias, and ethnographies by María Rostworowski and Tom Zuidema provide context for sacred landscape concepts also examined by scholars at University of Oxford and Harvard University. Colonial mining expeditions recorded by Real Audiencia of Charcas and modern mineral surveys by CODELCO and private firms reference exploration in the broader region; cultural heritage initiatives by UNESCO and national cultural ministries engage with indigenous stakeholders.
Access to Tocorpuri for scientific teams from Universidad de Antofagasta, Universidad de Chile, University of Cambridge, National Geographic Society, and Smithsonian Institution involves permits coordinated with national authorities such as CONAF, Servicio Nacional de Geología y Minería, and SERNAP (Bolivia). Ongoing research projects funded by agencies including FONDECYT, CONICYT, NSF, European Research Council and collaborations with institutes like Instituto Milenio de Oceanografía employ remote sensing, field sampling, and geophysical instrumentation from firms such as Schlumberger and instrument providers catalogued by IRIS. Conservation efforts intersect with protected area programs administered by CONAF, community stewardship by Aymara organizations, and international frameworks such as Convention on Biological Diversity and Ramsar Convention when wetlands are implicated.