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Volcano Calendar 2019
Volcano Calendar 2019: We're proud to present our 2019 volcano calendar: 13 different and attractive images of volcanoes, volcanic landscapes and phenomena taken during volcano tours over the past few years.
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9-22 Feb 2019: Desert, salt and volcanoes - Danakil desert (Ethiopia)
2-17 May 2019: From Krakatau to Bali - Java (Indonesia)
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4-12 May 2019: From Stromboli to Etna - Eolian Islands + Etna volcano (Italy)
11-19 May 2019: From Stromboli to Etna - Eolian Islands + Etna volcano (Italy)
7-12 Jun 2019: Adventure Volcano - Yasur Volcano Travel - Tanna Island (Vanuatu)
8-16 Jun 2019: From Stromboli to Etna - Eolian Islands + Etna volcano (Italy)
14-30 Jun 2019: Volcanoes and Spices - N-Sulawesi + Halmahera (Indonesia)
8-23 Jul 2019: From Krakatau to Bali - Java (Indonesia)
13-29 Aug 2019: Volcanoes and Spices - N-Sulawesi + Halmahera (Indonesia)
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diorite

Volcanology
Diorite sample (image: Michael C. Rygel via Wikimedia Commons)
Diorite sample (image: Michael C. Rygel via Wikimedia Commons)
Diorite is an intrusive igneous rock of intermediate silica content (53-63%). It is the equivalent of its extrusive (volcanic) counterpart andesite.
Diorite is composed principally of the silicate minerals plagioclase feldspar (typically andesine), biotite, hornblende, and/or pyroxene. The chemical composition of diorite is intermediate between gabbro and granite.

Related keywords (2):

andesite - granite
 

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Follow updates as news come in!
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