Pastos Grandes caldera

Pastos Grandes Caldera
Laguna Pastos Grandes, probably a remainder of the Pastos Grandes Caldera Lake. Resurgent center on the South (highest point not shown), caldera scarps on the right side of the laguna.
Highest point
Elevation	4,600 m (15,100 ft)(avg)
Listing	List of volcanoes in Bolivia
Geography
Location	Potosí Department, Bolivia
Geology
Mountain type	Caldera
Volcanic arc/belt	Altiplano–Puna volcanic complex

Pastos Grandes Caldera or Cerro Pastos Grandes (a resurgent centre) is an old caldera in the Potosí Department, Bolivia, which belongs to the Altiplano–Puna volcanic complex. Lagunas Pastos Grandes, Khara and Cachi may be remnants of a greater caldera lake. Size of the caldera: 50 km x 40 km. A large (VEI 7) eruption c. 2.9 million years ago produced 820 cubic kilometers (197 cu mi) of tephra.

See also

• Cerro Chascon-Runtu Jarita complex

References

• Baker, M.C.W. (1981). "The nature and distribution of upper Cenozoic ignimbrite centres in the Central Andes". J. Volcanol. Geotherm. Res. 11: 293–315. Bibcode:1981JVGR...11..293B. doi:10.1016/0377-0273(81)90028-7.
• de Silva, S.L.; Francis, P.W. (1989). "Correlation of large ignimbrites - two case studies from the Central Andes of N. Chile". J. Volcanol. Geotherm. Res. 37 (2): 133–149. Bibcode:1989JVGR...37..133D. doi:10.1016/0377-0273(89)90066-8.
• Francis, P.W.; Baker, M.C.W. (1978). "Sources of two large-volume ignimbrites in the Central Andes: Some Landsat evidence". J. Volcanol. Geotherm. Res. 4: 81–87. Bibcode:1978JVGR....4...81F. doi:10.1016/0377-0273(78)90029-X.
• Ort, M. H.; de Silva, S.; Jiminez, N.; Salisbury, M.; Jicha, B. R. and Singer, B. S. (2009). Two new supereruptions in the Altiplano-Puna Volcanic Complex of the Central Andes. doi:10.1016/S0377-0273(00)00270-5.
• Stern, Charles R. (December 2004). "Active Andean volcanism: its geologic and tectonic setting". Revista geológica de Chile. 31 (2): 161–206. doi:10.4067/S0716-02082004000200001. Retrieved 2010-03-15. {{cite journal}}: Cite has empty unknown parameter: |coauthors= (help)
• Pastos Grandes