San Pablo (volcano)

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San Pablo
Volcan San Pedro.jpg
Volcan San Pablo from just below the summit on San Pedro volcano
Highest point
Elevation6,110 m (20,050 ft)[1]
Prominence808 m (2,651 ft)[2]
Parent peakSan Pedro
Coordinates21°52′S 68°22′W / 21.867°S 68.367°W / -21.867; -68.367[1]
Geography
San Pablo is located in Chile
San Pablo
San Pablo
Chile
LocationChile
Parent rangeAndes
Geology
Mountain typeStratovolcano
Climbing
First ascentSeptember 1910 by Hans Berger (Germany)[3][4][5]
Easiest routeNorth side to col then West slopes

San Pablo is a dormant volcano located in the Antofagasta Region of Chile, near the Bolivia border. It is joined to the younger San Pedro volcano by a high col. It is located in the Chilean province of El Loa, city of Calama and Ollagüe.[6]

San Pablo was active in pre-glacial times. After that period, glaciations formed a girdle of moraines and the mountain was covered by ash fall from neighbouring San Pedro.[7] Its central crater was eroded and a glacier formed inside. The volcano itself is formed by three groups of andesite lavas which variously contain pyroxene or hornblende; these groups are known as the Lower Group, the Middle Group and the Summit Group.[8]

First Ascent[]

San Pablo was first climbed by Hans Berger (Germany) in September 1910.[9][10]

Elevation[]

It has an official height of 6050 meters.[11] Other data from available digital elevation models: SRTM yields 6098 metres,[12] ASTER 6076 metres[13] and TanDEM-X 6143 metres.[14] The height of the nearest key col is 5302 meters, leading to a topographic prominence of 808 meters.[15] San Pablo is considered a Mountain Subgroup according to the Dominance System [16] and its dominance is 13.22%. Its parent peak is San Pedro and the Topographic isolation is 5.1 kilometers. [17]

External links[]

References[]

  1. ^ a b "Cumbres en Zona Fronteriza: Volcán San Pablo" (in Spanish). Chilean Government - Difrol. Archived from the original on 16 March 2012. Retrieved 9 February 2012.
  2. ^ "San Pablo". Andes Specialists. Retrieved 2020-04-12.
  3. ^ Le Ande Fantin. p. 105.
  4. ^ Evelio Echeverría (1963). "AAJ (American Alpine Journal)". AAJ (American Alpine Journal): 428.
  5. ^ "San Pablo". Andes Website. Retrieved 2020-06-22.
  6. ^ rbenavente. "Biblioteca del Congreso Nacional | SIIT | Mapas vectoriales". bcn.cl. Retrieved 2020-04-30.
  7. ^ O'callaghan, L. J.; Francis, P. W. (1986-03-01). "Volcanological and petrological evolution of San Pedro volcano, Provincia EI Loa, North Chile". Journal of the Geological Society. 143 (2): 277. Bibcode:1986JGSoc.143..275O. doi:10.1144/gsjgs.143.2.0275. ISSN 0016-7649. S2CID 129912382.
  8. ^ Francis, P. W.; Roobol, M. J.; Walker, G. P. L.; Cobbold, P. R.; Coward, M. (1974-01-01). "The San Pedro and San Pablo volcanoes of northern Chile and their hot avalanche deposits". Geologische Rundschau. 63 (1): 357–388. Bibcode:1974GeoRu..63..357F. doi:10.1007/BF01820994. ISSN 0016-7835. S2CID 128960834.
  9. ^ Le Ande Fantin. p. 105.
  10. ^ Evelio Echeverría (1963). "AAJ (American Alpine Journal)". AAJ (American Alpine Journal): 428.
  11. ^ "IGM Chile". IGM Chile. 14 April 2020. Retrieved 14 April 2020.
  12. ^ USGS, EROS Archive. "USGS EROS Archive - Digital Elevation - SRTM Coverage Maps". Retrieved 12 April 2020.
  13. ^ "ASTER GDEM Project". ssl.jspacesystems.or.jp. Retrieved 2020-04-14.
  14. ^ TanDEM-X, TerraSAR-X. "Copernicus Space Component Data Access". Retrieved 12 April 2020.
  15. ^ "San Pablo". Andes Specialists. Retrieved 2020-04-12.
  16. ^ "Dominance - Page 2". www.8000ers.com. Retrieved 2020-04-12.
  17. ^ "San Pablo". Andes Specialists. Retrieved 2020-04-12.
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