Definitions for lava dome
la·va dome

WiktionaryRate this definition:5.0 / 1 vote

1. lava domenoun

   A roughly circular mound-shaped bulge that builds up from the slow eruption of viscous felsic lava from a volcano.

WikipediaRate this definition:0.0 / 0 votes

1. Lava dome

   In volcanology, a lava dome is a circular mound-shaped protrusion resulting from the slow extrusion of viscous lava from a volcano. Dome-building eruptions are common, particularly in convergent plate boundary settings. Around 6% of eruptions on Earth are lava dome forming. The geochemistry of lava domes can vary from basalt (e.g. Semeru, 1946) to rhyolite (e.g. Chaiten, 2010) although the majority are of intermediate composition (such as Santiaguito, dacite-andesite, present day) The characteristic dome shape is attributed to high viscosity that prevents the lava from flowing very far. This high viscosity can be obtained in two ways: by high levels of silica in the magma, or by degassing of fluid magma. Since viscous basaltic and andesitic domes weather fast and easily break apart by further input of fluid lava, most of the preserved domes have high silica content and consist of rhyolite or dacite. Existence of lava domes has been suggested for some domed structures on the Moon, Venus, and Mars, e.g. the Martian surface in the western part of Arcadia Planitia and within Terra Sirenum.

WikidataRate this definition:0.0 / 0 votes

1. Lava dome

   In volcanology, a lava dome is a roughly circular mound-shaped protrusion resulting from the slow extrusion of viscous lava from a volcano. The geochemistry of lava domes can vary from basalt to rhyolite although most preserved domes tend to have high silica content. The characteristic dome shape is attributed to high viscosity that prevents the lava from flowing very far. This high viscosity can be obtained in two ways: by high levels of silica in the magma, or by degassing of fluid magma. Since viscous basaltic and andesitic domes weather fast and easily break apart by further input of fluid lava, most of the preserved domes have high silica content and consists of rhyolite or dacite.

Editors ContributionRate this definition:0.0 / 0 votes

1. lava dome

   A dome of Lava

   
   

   Submitted by anonymous on June 5, 2019  

How to pronounce lava dome?

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How to say lava dome in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of lava dome in Chaldean Numerology is: 4

2. Pythagorean Numerology

   The numerical value of lava dome in Pythagorean Numerology is: 1

References

1. ^ Wiktionary
   https://en.wiktionary.org/wiki/Lava_Dome
2. ^ Wikipedia
   https://en.wikipedia.org/wiki/Lava_Dome
3. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=lava dome