Porak: Perbedaan antara revisi

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Revisi per 8 Januari 2021 10.34

Porak
Axarbaxar
A pyroclastic cone of the Porak volcanic field.
Titik tertinggi
Ketinggian2.800 m (9.200 ft)
Koordinat40°01′N 45°47′E / 40.017°N 45.783°E / 40.017; 45.783Koordinat: 40°01′N 45°47′E / 40.017°N 45.783°E / 40.017; 45.783
Geografi
Porak di Armenia
Porak
Porak
Location on Armenia–Azerbaijan border
LetakArmenia–Azerbaijan border
PegununganVardenis
Geologi
Jenis gunungStratovolcano
Letusan terakhir778 BCE ± 5 years

Porak or Axarbaxar ("gutted belly" in Azerbaijani[1]) is a stratovolcano located in the Vardenis volcanic ridge. It lies about 20 km (12 mi) southeast of Lake Sevan and the volcanic field spans the border between Armenia and Azerbaijan with lava flows running into both countries. Ten satellite cones and fissure vents lie on the flanks of the volcano.[2]

The Porak volcano itself and the third stage has been dated 15 ± 15 ka by K-Ar dating.[1] Two long lava flows, one of which 21 km long, stretch from the field north and northeastwards. There are thermal springs in the area, and the Middle Pleistocene Khonarassar fault area lies to the north of the Porak centre.[3][4] The complex is built on partly sedimentary rock and partly volcanogenic Late Cretaceous and Eocene series with Paleogene intrusions.[1]

Referensi

  1. ^ a b c Bubnov, S. N.; Lebedev, V. A.; Chernyshev, I. V.; Sagatelyan, A. K.; Dokuchaev, A. Ya.; Gol’tsman, Yu. V.; Oleinikova, T. I.; Griboedova, I. G. (2014). "The potentially active Porak neovolcanic center (Lesser Caucasus, Armenia): The composition of lavas and melt sources". Doklady Earth Sciences. 459 (1): 1365–1370. Bibcode:2014DokES.459.1365B. doi:10.1134/S1028334X14110014. ISSN 1028-334X. 
  2. ^ "Porak". Global Volcanism Program. Institusi Smithsonian. Diakses tanggal 20 July 2015. 
  3. ^ Kesalahan pengutipan: Tag <ref> tidak sah; tidak ditemukan teks untuk ref bernama KarakhanianDjrbashian2002
  4. ^ "Porak". Search. Volcano Global Risk Identification & Analysis Project. May 2, 2012. Diakses tanggal July 21, 2015.