Eruption style at Kīlauea Volcano in Hawaiʻi linked to primary melt composition

Simple item page
dc.contributor.authorSides, I.R.
dc.contributor.authorEdmonds, M.
dc.contributor.authorMaclennan, J.
dc.contributor.authorSwanson, D.A.
dc.contributor.authorHoughton, B.F.
dc.date.accessioned2016-03-09T22:40:18Z
dc.date.available2016-03-09T22:40:18Z
dc.date.issued2014-04
dc.description.abstractExplosive eruptions at basaltic volcanoes have been linked to gas segregation from magmas at shallow depths in the crust. The composition of primary melts formed at greater depths is thought to have little influence on eruptive style. Primary melts formed at ocean island basaltic volcanoes are probably geochemically diverse because they are often associated with melting of a heterogeneous plume source in the mantle. This heterogeneous primary melt composition, and particularly the content of volatile gases, will profoundly influence magma buoyancy, storage and eruption style. Here we analyse the geochemistry of a suite of melt inclusions from 25 historical eruptions at the ocean island volcano of K¯ılauea, Hawai’i, over the past 600 years.We find that more explosive styles of eruption at K¯ılauea Volcano are associated statistically with more geochemically enriched primary melts that have higher volatile concentrations. These enriched melts ascend faster and retain their primary nature, undergoing little interaction with the magma reservoir at the volcano’s summit. We conclude that the eruption style and magma-supply rate at K¯ılauea are fundamentally linked to the geochemistry of the primary melts formed deep below the volcano. Magmas might therefore be predisposed towards explosivity right at the point of formation in their mantle source region.
dc.format.extent6
dc.identifier.doi10.1038/ngeo2140
dc.identifier.urihttp://hdl.handle.net/10125/39957
dc.language.isoen-US
dc.publisherNature Geoscience
dc.relation.urihttp://www.nature.com/ngeo/journal/v7/n6/full/ngeo2140.html
dc.titleEruption style at Kīlauea Volcano in Hawaiʻi linked to primary melt composition
dc.typeArticle
dc.type.dcmiText

Files

Original bundle
Now showing 1 - 2 of 2
Thumbnail Image
Name:
Sides_NGS_2014.pdf
Size:
1.48 MB
Format:
Adobe Portable Document Format
Description:
Main article
Download
Thumbnail Image
Name:
Sides_et_al_2014_supplement.pdf
Size:
1.16 MB
Format:
Adobe Portable Document Format
Description:
Supplemental
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.62 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

SOEST Faculty & Researcher Works