Microstructural constraints on magmatic mushes under Kīlauea Volcano, Hawaiʻi
Distorted olivines of enigmatic origin are ubiquitous in erupted products from a wide range of volcanic systems (e.g., Hawaiʻi, Iceland, Andes). Investigation of these features at Kīlauea Volcano, Hawaiʻi, using an integrative crystallographic and chemical approach places quantitative constraints on...
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ftucambridgeesc:oai:eprints.esc.cam.ac.uk:4617 2023-05-15T16:49:54+02:00 Microstructural constraints on magmatic mushes under Kīlauea Volcano, Hawaiʻi Wieser, Penny E. Edmonds, Marie Maclennan, John Wheeler, John 2020 text http://eprints.esc.cam.ac.uk/4617/ http://eprints.esc.cam.ac.uk/4617/1/s41467-019-13635-y.pdf http://eprints.esc.cam.ac.uk/4617/2/41467_2019_13635_MOESM1_ESM.pdf http://eprints.esc.cam.ac.uk/4617/3/41467_2019_13635_MOESM2_ESM.pdf http://eprints.esc.cam.ac.uk/4617/4/41467_2019_13635_MOESM3_ESM.pdf http://eprints.esc.cam.ac.uk/4617/5/41467_2019_13635_MOESM4_ESM.xlsx http://eprints.esc.cam.ac.uk/4617/6/41467_2019_13635_MOESM5_ESM.txt http://eprints.esc.cam.ac.uk/4617/7/41467_2019_13635_MOESM6_ESM.txt https://doi.org/10.1038/s41467-019-13635-y en eng Springer Nature http://eprints.esc.cam.ac.uk/4617/1/s41467-019-13635-y.pdf http://eprints.esc.cam.ac.uk/4617/2/41467_2019_13635_MOESM1_ESM.pdf http://eprints.esc.cam.ac.uk/4617/3/41467_2019_13635_MOESM2_ESM.pdf http://eprints.esc.cam.ac.uk/4617/4/41467_2019_13635_MOESM3_ESM.pdf http://eprints.esc.cam.ac.uk/4617/5/41467_2019_13635_MOESM4_ESM.xlsx http://eprints.esc.cam.ac.uk/4617/6/41467_2019_13635_MOESM5_ESM.txt http://eprints.esc.cam.ac.uk/4617/7/41467_2019_13635_MOESM6_ESM.txt Wieser, Penny E. and Edmonds, Marie and Maclennan, John and Wheeler, John (2020) Microstructural constraints on magmatic mushes under Kīlauea Volcano, Hawaiʻi. Nature Communications, 11 (1). ISSN 2041-1723 DOI https://doi.org/10.1038/s41467-019-13635-y <https://doi.org/10.1038/s41467-019-13635-y> cc_by CC-BY 05 - Petrology - Igneous Metamorphic and Volcanic Studies Article PeerReviewed 2020 ftucambridgeesc https://doi.org/10.1038/s41467-019-13635-y 2020-08-27T18:10:03Z Distorted olivines of enigmatic origin are ubiquitous in erupted products from a wide range of volcanic systems (e.g., Hawaiʻi, Iceland, Andes). Investigation of these features at Kīlauea Volcano, Hawaiʻi, using an integrative crystallographic and chemical approach places quantitative constraints on mush pile thicknesses. Electron backscatter diffraction (EBSD) reveals that the microstructural features of distorted olivines, whose chemical composition is distinct from undistorted olivines, are remarkably similar to olivines within deformed mantle peridotites, but inconsistent with an origin from dendritic growth. This, alongside the spatial distribution of distorted grains and the absence of adcumulate textures, suggests that olivines were deformed within melt-rich mush piles accumulating within the summit reservoir. Quantitative analysis of subgrain geometry reveals that olivines experienced differential stresses of ∼3–12 MPa, consistent with their storage in mush piles with thicknesses of a few hundred metres. Overall, our microstructural analysis of erupted crystals provides novel insights into mush-rich magmatic systems. Article in Journal/Newspaper Iceland University of Cambridge, Department of Earth Sciences: ESC Publications Nature Communications 11 1 |
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University of Cambridge, Department of Earth Sciences: ESC Publications |
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ftucambridgeesc |
language |
English |
topic |
05 - Petrology - Igneous Metamorphic and Volcanic Studies |
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05 - Petrology - Igneous Metamorphic and Volcanic Studies Wieser, Penny E. Edmonds, Marie Maclennan, John Wheeler, John Microstructural constraints on magmatic mushes under Kīlauea Volcano, Hawaiʻi |
topic_facet |
05 - Petrology - Igneous Metamorphic and Volcanic Studies |
description |
Distorted olivines of enigmatic origin are ubiquitous in erupted products from a wide range of volcanic systems (e.g., Hawaiʻi, Iceland, Andes). Investigation of these features at Kīlauea Volcano, Hawaiʻi, using an integrative crystallographic and chemical approach places quantitative constraints on mush pile thicknesses. Electron backscatter diffraction (EBSD) reveals that the microstructural features of distorted olivines, whose chemical composition is distinct from undistorted olivines, are remarkably similar to olivines within deformed mantle peridotites, but inconsistent with an origin from dendritic growth. This, alongside the spatial distribution of distorted grains and the absence of adcumulate textures, suggests that olivines were deformed within melt-rich mush piles accumulating within the summit reservoir. Quantitative analysis of subgrain geometry reveals that olivines experienced differential stresses of ∼3–12 MPa, consistent with their storage in mush piles with thicknesses of a few hundred metres. Overall, our microstructural analysis of erupted crystals provides novel insights into mush-rich magmatic systems. |
format |
Article in Journal/Newspaper |
author |
Wieser, Penny E. Edmonds, Marie Maclennan, John Wheeler, John |
author_facet |
Wieser, Penny E. Edmonds, Marie Maclennan, John Wheeler, John |
author_sort |
Wieser, Penny E. |
title |
Microstructural constraints on magmatic mushes under Kīlauea Volcano, Hawaiʻi |
title_short |
Microstructural constraints on magmatic mushes under Kīlauea Volcano, Hawaiʻi |
title_full |
Microstructural constraints on magmatic mushes under Kīlauea Volcano, Hawaiʻi |
title_fullStr |
Microstructural constraints on magmatic mushes under Kīlauea Volcano, Hawaiʻi |
title_full_unstemmed |
Microstructural constraints on magmatic mushes under Kīlauea Volcano, Hawaiʻi |
title_sort |
microstructural constraints on magmatic mushes under kīlauea volcano, hawaiʻi |
publisher |
Springer Nature |
publishDate |
2020 |
url |
http://eprints.esc.cam.ac.uk/4617/ http://eprints.esc.cam.ac.uk/4617/1/s41467-019-13635-y.pdf http://eprints.esc.cam.ac.uk/4617/2/41467_2019_13635_MOESM1_ESM.pdf http://eprints.esc.cam.ac.uk/4617/3/41467_2019_13635_MOESM2_ESM.pdf http://eprints.esc.cam.ac.uk/4617/4/41467_2019_13635_MOESM3_ESM.pdf http://eprints.esc.cam.ac.uk/4617/5/41467_2019_13635_MOESM4_ESM.xlsx http://eprints.esc.cam.ac.uk/4617/6/41467_2019_13635_MOESM5_ESM.txt http://eprints.esc.cam.ac.uk/4617/7/41467_2019_13635_MOESM6_ESM.txt https://doi.org/10.1038/s41467-019-13635-y |
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Iceland |
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http://eprints.esc.cam.ac.uk/4617/1/s41467-019-13635-y.pdf http://eprints.esc.cam.ac.uk/4617/2/41467_2019_13635_MOESM1_ESM.pdf http://eprints.esc.cam.ac.uk/4617/3/41467_2019_13635_MOESM2_ESM.pdf http://eprints.esc.cam.ac.uk/4617/4/41467_2019_13635_MOESM3_ESM.pdf http://eprints.esc.cam.ac.uk/4617/5/41467_2019_13635_MOESM4_ESM.xlsx http://eprints.esc.cam.ac.uk/4617/6/41467_2019_13635_MOESM5_ESM.txt http://eprints.esc.cam.ac.uk/4617/7/41467_2019_13635_MOESM6_ESM.txt Wieser, Penny E. and Edmonds, Marie and Maclennan, John and Wheeler, John (2020) Microstructural constraints on magmatic mushes under Kīlauea Volcano, Hawaiʻi. Nature Communications, 11 (1). ISSN 2041-1723 DOI https://doi.org/10.1038/s41467-019-13635-y <https://doi.org/10.1038/s41467-019-13635-y> |
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https://doi.org/10.1038/s41467-019-13635-y |
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Nature Communications |
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