Arintica
Template:Infobox mountain Arintica is a stratovolcano located in Arica y Parinacota Region of Chile, near the border with Bolivia. It lies north of the Salar de Surire.
Geomorphology and geology
Script error: No such module "convert". high[1]Template:Rp Arintica lies north of the Salar de Surire. To the east lies another volcano, Pukintika,[2] which is higher with Script error: No such module "convert"..[1]Template:Rp The volcano has a main summit in the north, a slightly shorter southern summit and a subsidiary peak in the west. A glacier valley lies between the summits.[3]Template:Rp The main summits, Cerro Calajalata and a second subsidiary mountain form a northeast-southwest trending ridge.[2] The height of the snowline is Script error: No such module "convert"..[4] Stage II moraines found on Arintica have altitudes ranging from Script error: No such module "convert". on the southern flank to Script error: No such module "convert". on the eastern flank. On the western flank they reach altitudes of Script error: No such module "convert"..[5] In total, five glaciers surrounded Arintica and drained into the Salar de Surire.[6] There were still glaciers in 1977.[7] According to a 1996 map, both Arintica and its subsidiary peak Cerro Calajalata to the southwest featured a permanent snow/ice cover.[2] Presently, rock glaciers are active on the mountain.[8] Arintica and Pukintika form the drainage divide between the Salar de Surire and the Lauca River basin; the southern flanks drain into the Salar de Surire[1]Template:Rp and the northern sides through the Rio Paquisa into the Lauca River.[1]Template:Rp
Eruption history
Potassium-argon dating has yielded an age of Script error: No such module "val". years on rocks from Arintica.[9] The volcano was constructed in two phases and postglacial lava flows have been found by Landsat imagery, but they are unsampled.[10] A previously identified southeastern lava flow has been later identified as a debris avalanche,[11] and other lava flows in the crater are actually rock glaciers.[9] A dacitic lava dome is found southwest of the volcano and is named Calajata.[11] In a 2011 hazard map Arintica was considered a potentially dangerous volcano of Chile.[12] Whether the volcano was active in the Holocene is contentious[11] and there is no indication of historical eruptions. Renewed activity would probably be of small magnitude and only have local impacts.[9]
Vegetation
A belt of Polylepis woods surrounds the volcano.[3]Template:Rp The volcano and its neighbour Pukintika are within the Salar de Surire Natural Monument, a national park that surrounds the Salar de Surire. The natural monument features the breeding sites of several flamingo species and internationally important wetlands, which are listed in the Ramsar Convention.[13]
Human use
The Salar de Surire Natural Monument is a tourist destination.[13] In the past, numerous concessions for sulfur mining were active at Arintica and its neighbour Poquentica.[14]
References
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