View source for Earth:Bolshaya Ipelka

{{Short description|Massive shield volcano in southern Kamchatka}}
{{Infobox mountain
| name = Bolshaya Ipelka
| photo = Bolshaya Ipelka.jpg
| photo_caption = Satellite image of Bolshaya Ipelka, with Opala being the small conical mountain to the right.
| elevation_m = 1155
| elevation_ref = 
| prominence_m = 
| map = Russia Kamchatka Krai
| map_caption = Location in Kamchatka Krai, Russia
| map_size = 
| label_position = 
| location = Kamchatka, {{wipe|Russia}}
| range= Eastern Range
| coordinates = {{coord|52.63|N|156.97|E|type:mountain}}
| topo = 
| type = [[Earth:Shield volcano|Shield volcano]]
| age = 
| last_eruption = [[Earth:Pleistocene|Pleistocene]]
| first_ascent = 
| easiest_route = 
}}

'''Bolshaya Ipelka''' ({{lang-ru|Большая Ипелька}}) is a massive [[Earth:Shield volcano|shield volcano]] at the southern end of the Kamchatka Peninsula in {{wipe|Russia}}'s [[Place:Far East|Far East]] region.<ref name="GVP">{{cite gvp|vn=300822|title=Bolshaya Ipelka}}</ref> It represents the largest volcanic structure of southern Kamchatka Krai, covering an area measuring {{Convert|32|km|mi|abbr=on}} long and {{Convert|42|km|mi|abbr=on}} wide.<ref name="GVP"/><ref name="NASA">{{cite web|url=https://earthobservatory.nasa.gov/images/87186/bolshaya-ipelka-and-opala|title=Bolshaya Ipelka and Opala|publisher=[[Astronomy:NASA Earth Observatory|NASA Earth Observatory]]|accessdate=2020-10-29}}</ref> Bolshaya Ipelka is of [[Earth:Pleistocene|Pleistocene]] age and formed west of the main volcanic zone in southern Kamchatka. The shield volcano is now inactive, having last erupted during the Pleistocene epoch.<ref name="GVP"/> 

Bolshaya Ipelka is extensively eroded, having been dissected by deep valleys along its flanks that were formed as a result of glaciers flowing out from the summit during past [[Earth:Glacial period|glacial period]]s. The summit is the most severely eroded part of the original cone, which originally had a much higher elevation than its present {{Convert|1155|m|ft|abbr=on}}. By contrast, the neighbouring Opala [[Earth:Stratovolcano|stratovolcano]] has an uneroded form and is still volcanically active, having last erupted about 300 years ago.<ref name="NASA"/>

==See also==
*List of volcanoes in Russia

==References==
{{reflist}}

[[Category:Pleistocene shield volcanoes]]


{{Sourceattribution|Bolshaya Ipelka}}