The settling of olivine in Kilauean magma as shown by lavas of the 1959 eruption

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ID: 293562
1966
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Abstract
Compositions of lavas of the 1959 Kilauea eruption in Kilauea Iki crater characterize the first stage of fractional crystallization of tholeiitic magma with unusual precision and completeness. Gravitative settling of olivine (Fa (sub 12.5) ) produces a series of lava types ranging from picrite-basalt to olivine-poor basalt. Variation of lava temperature with olivine content suggests zoning of the subterranean magma body into a cooler, olivine-depleted upper part and a hotter, olivine-enriched lower part. The most picritic lavas were erupted during periods of high rates of lava discharge; unusually strong magma currents may have mobilized the sludge of sedimented olivines at the bottom of the magma chamber to produce picritic magma.
Reference Key
openalex_W1965954548 Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors K. Murata, Donald H. Richter
Journal american journal of science
Year 1966
DOI
10.2475/ajs.264.3.194
URL
https://ajs.scholasticahq.com/article/59120.pdf
Keywords Keywords not found

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