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Words near each other
・ Izak Ogoai
・ Izak Parviz Nazarian
・ Izak Reid
・ Izak Senbahar
・ Izak van der Merwe
・ Izak van der Westhuizen
・ Izak Van Heerden
・ Izak Šantej
・ Izakaya
・ Izakaya Chōji
・ Izal
・ Izala
・ Izala Society
・ Izalatul Khafa'an Khilafatul Khulafa
・ Izalco
Izalco (volcano)
・ Izale McLeod
・ Izalene Tiene
・ Izaline Calister
・ Izaly Zemtsovsky
・ Izalzu – Itzaltzu
・ Izamal
・ Izamal Municipality
・ Izana
・ Izanagi
・ Izanagi Plate
・ Izanagi Shrine
・ Izanami (genus)
・ Izanami-no-Mikoto
・ Izano


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Izalco (volcano) : ウィキペディア英語版
Izalco (volcano)

Izalco is a stratovolcano on the side of the Santa Ana Volcano, which is located in western El Salvador. It is situated on the southern flank of the Santa Ana volcano. Izalco erupted almost continuously from 1770 (when it formed) to 1958 earning it the nickname of "Lighthouse of the Pacific", and experienced a flank eruption in 1966. During an eruption in 1926, the village of Matazano was buried and 56 people were killed. The formation of the volcano actually occupied highly arable land on the southern slope of the Santa Ana volcano which was used for the production of coffee, cacao and sugar cane
==Geology and mineralogy==

The lava historically erupted from Izalco consists of vesicular vitrophyric olivine basalts.〔(Izalco Volcano, Mindat )〕 Izalco's formation was preceded by Fumorolic activity in 1658, before Izalco was born in 1770.
Today, Izalco experiences only fumarolic activity in the form of rainwater seeping into the volcano and contacting hot rocks, rather than steam emissions from underground gases. The fumarole deposits of the volcano are noted as sources for several rare minerals. It is the type locality for the copper vanadium minerals: bannermanite, blossite, fingerite, howardevansite, lyonsite, mcbirneyite, stoiberite and ziesite.〔

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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