Submarine pyroclastic deposits formed during the 20th May 2006 dome collapse of the Soufrière Hills Volcano, Montserrat
The 20th May 2006 lava dome collapse of the Soufrière Hills Volcano, Montserrat, had a total non-dense rock equivalent (non-DRE) collapse volume of approximately 115 × 10 6 m 3 . The majority of this volume was deposited into the ocean. The collapse was rapid, 85% of the mobilized volume being remo...
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| Veröffentlicht in: | Bulletin of volcanology 2012-03, Vol.74 (2), p.391-405 |
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| creator | Trofimovs, J. Foster, C. Sparks, R. S. J. Loughlin, S. Le Friant, A. Deplus, C. Porritt, L. Christopher, T. Luckett, R. Talling, P. J. Palmer, M. R. Le Bas, T. |
| description | The 20th May 2006 lava dome collapse of the Soufrière Hills Volcano, Montserrat, had a total non-dense rock equivalent (non-DRE) collapse volume of approximately 115 × 10
6
m
3
. The majority of this volume was deposited into the ocean. The collapse was rapid, 85% of the mobilized volume being removed in just 35 min, giving peak pyroclastic flow flux of 66 × 10
3
m
3
s
−1
. Channel and levee facies on the submarine flanks of the volcano and formation of a thick, steep-sided ridge, suggest that the largest and most dense blocks were transported proximally as a high concentration granular flow. Of the submerged volume, 30% was deposited from the base of this granular flow, forming a linear, high-relief ridge that extends 7 km from shore. The remaining 70% of the submerged volume comprises the finer grain sizes, which were transported at least 40 km by turbidity currents on gradients of |
| doi_str_mv | 10.1007/s00445-011-0533-5 |
| format | Article |
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6
m
3
. The majority of this volume was deposited into the ocean. The collapse was rapid, 85% of the mobilized volume being removed in just 35 min, giving peak pyroclastic flow flux of 66 × 10
3
m
3
s
−1
. Channel and levee facies on the submarine flanks of the volcano and formation of a thick, steep-sided ridge, suggest that the largest and most dense blocks were transported proximally as a high concentration granular flow. Of the submerged volume, 30% was deposited from the base of this granular flow, forming a linear, high-relief ridge that extends 7 km from shore. The remaining 70% of the submerged volume comprises the finer grain sizes, which were transported at least 40 km by turbidity currents on gradients of <2°. At several localities, the May 2006 distal turbidity currents ran up 200 m of topography and eroded up to 20 cm of underlying substrate. Multiple turbidites are preserved, representing current reflection from the graben margins and deflection around topography. The high energy of the May 2006 collapse resulted in longer submarine run out than the larger (210 × 10
6
m
3
) Soufrière Hills dome collapse in July 2003.</description><identifier>ISSN: 0258-8900</identifier><identifier>EISSN: 1432-0819</identifier><identifier>DOI: 10.1007/s00445-011-0533-5</identifier><identifier>CODEN: BUVOEW</identifier><language>eng</language><publisher>Berlin/Heidelberg: Springer-Verlag</publisher><subject>Bathymetry ; Crystalline rocks ; Earth and Environmental Science ; Earth Sciences ; Earth, ocean, space ; Engineering and environment geology. Geothermics ; Exact sciences and technology ; Geology ; Geophysics ; Geophysics/Geodesy ; Hills ; Igneous and metamorphic rocks petrology, volcanic processes, magmas ; Lava ; Lava domes ; Mineralogy ; Natural hazards: prediction, damages, etc ; Research Article ; Sciences of the Universe ; Sedimentology ; Topography ; Turbidity ; Turbidity currents ; Volcanoes ; Volcanology</subject><ispartof>Bulletin of volcanology, 2012-03, Vol.74 (2), p.391-405</ispartof><rights>Springer-Verlag 2011</rights><rights>2015 INIST-CNRS</rights><rights>Springer-Verlag 2012</rights><rights>Distributed under a Creative Commons Attribution 4.0 International License</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a4595-5fa67fe79ed8c99f5713ec41696772ffaab9ab073eb168434c6238b2c8448ee33</citedby><cites>FETCH-LOGICAL-a4595-5fa67fe79ed8c99f5713ec41696772ffaab9ab073eb168434c6238b2c8448ee33</cites><orcidid>0000-0003-3689-3704 ; 0000-0001-8901-2515</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s00445-011-0533-5$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s00445-011-0533-5$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>230,314,776,780,881,27901,27902,41464,42533,51294</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=25578750$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://insu.hal.science/insu-03583366$$DView record in HAL$$Hfree_for_read</backlink></links><search><creatorcontrib>Trofimovs, J.</creatorcontrib><creatorcontrib>Foster, C.</creatorcontrib><creatorcontrib>Sparks, R. S. J.</creatorcontrib><creatorcontrib>Loughlin, S.</creatorcontrib><creatorcontrib>Le Friant, A.</creatorcontrib><creatorcontrib>Deplus, C.</creatorcontrib><creatorcontrib>Porritt, L.</creatorcontrib><creatorcontrib>Christopher, T.</creatorcontrib><creatorcontrib>Luckett, R.</creatorcontrib><creatorcontrib>Talling, P. J.</creatorcontrib><creatorcontrib>Palmer, M. R.</creatorcontrib><creatorcontrib>Le Bas, T.</creatorcontrib><title>Submarine pyroclastic deposits formed during the 20th May 2006 dome collapse of the Soufrière Hills Volcano, Montserrat</title><title>Bulletin of volcanology</title><addtitle>Bull Volcanol</addtitle><description>The 20th May 2006 lava dome collapse of the Soufrière Hills Volcano, Montserrat, had a total non-dense rock equivalent (non-DRE) collapse volume of approximately 115 × 10
6
m
3
. The majority of this volume was deposited into the ocean. The collapse was rapid, 85% of the mobilized volume being removed in just 35 min, giving peak pyroclastic flow flux of 66 × 10
3
m
3
s
−1
. Channel and levee facies on the submarine flanks of the volcano and formation of a thick, steep-sided ridge, suggest that the largest and most dense blocks were transported proximally as a high concentration granular flow. Of the submerged volume, 30% was deposited from the base of this granular flow, forming a linear, high-relief ridge that extends 7 km from shore. The remaining 70% of the submerged volume comprises the finer grain sizes, which were transported at least 40 km by turbidity currents on gradients of <2°. At several localities, the May 2006 distal turbidity currents ran up 200 m of topography and eroded up to 20 cm of underlying substrate. Multiple turbidites are preserved, representing current reflection from the graben margins and deflection around topography. The high energy of the May 2006 collapse resulted in longer submarine run out than the larger (210 × 10
6
m
3
) Soufrière Hills dome collapse in July 2003.</description><subject>Bathymetry</subject><subject>Crystalline rocks</subject><subject>Earth and Environmental Science</subject><subject>Earth Sciences</subject><subject>Earth, ocean, space</subject><subject>Engineering and environment geology. Geothermics</subject><subject>Exact sciences and technology</subject><subject>Geology</subject><subject>Geophysics</subject><subject>Geophysics/Geodesy</subject><subject>Hills</subject><subject>Igneous and metamorphic rocks petrology, volcanic processes, magmas</subject><subject>Lava</subject><subject>Lava domes</subject><subject>Mineralogy</subject><subject>Natural hazards: prediction, damages, etc</subject><subject>Research Article</subject><subject>Sciences of the Universe</subject><subject>Sedimentology</subject><subject>Topography</subject><subject>Turbidity</subject><subject>Turbidity currents</subject><subject>Volcanoes</subject><subject>Volcanology</subject><issn>0258-8900</issn><issn>1432-0819</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><sourceid>BENPR</sourceid><recordid>eNp1kd2KFDEQhYMoOI4-gHdBEEFsrfynL5dFHWEWL1a9Del04mTp6bRJtzhv5Hv4YmbsZQXBqyqorw7ncBB6SuA1AVBvCgDnogFCGhCMNeIe2hDOaAOatPfRBqjQjW4BHqJHpdwA1KNUG_TjeumONsfR4-mUkxtsmaPDvZ9SiXPBIeWj73G_VOQrng8eU5gP-Mqe6gIS9-nosUvDYKficQp_kOu0hBx__cwe7-IwFPwlDc6O6RW-SuNcfM52foweBDsU_-R2btHnd28_Xe6a_cf3Hy4v9o3lohWNCFaq4FXre-3aNghFmHecyFYqRUOwtmttB4r5jkjNGXeSMt1RpznX3jO2RS9X3YMdzJRjDXsyyUazu9ibOJbFABOaMSm_kwq_WOEpp2-LL7M5xuJ8TTf6tBTTUqm1UMAr-ewf8iYteaxJKkSZZKp62iKyQi6nUrIPdwYImHNtZq3N1NrMuTYj6s_zW2FbnB1CtqOL5e6RCqG0ElA5unJlOlfj818D_xf_DaX-pqo</recordid><startdate>201203</startdate><enddate>201203</enddate><creator>Trofimovs, J.</creator><creator>Foster, C.</creator><creator>Sparks, R. 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S. J.</au><au>Loughlin, S.</au><au>Le Friant, A.</au><au>Deplus, C.</au><au>Porritt, L.</au><au>Christopher, T.</au><au>Luckett, R.</au><au>Talling, P. J.</au><au>Palmer, M. R.</au><au>Le Bas, T.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Submarine pyroclastic deposits formed during the 20th May 2006 dome collapse of the Soufrière Hills Volcano, Montserrat</atitle><jtitle>Bulletin of volcanology</jtitle><stitle>Bull Volcanol</stitle><date>2012-03</date><risdate>2012</risdate><volume>74</volume><issue>2</issue><spage>391</spage><epage>405</epage><pages>391-405</pages><issn>0258-8900</issn><eissn>1432-0819</eissn><coden>BUVOEW</coden><abstract>The 20th May 2006 lava dome collapse of the Soufrière Hills Volcano, Montserrat, had a total non-dense rock equivalent (non-DRE) collapse volume of approximately 115 × 10
6
m
3
. The majority of this volume was deposited into the ocean. The collapse was rapid, 85% of the mobilized volume being removed in just 35 min, giving peak pyroclastic flow flux of 66 × 10
3
m
3
s
−1
. Channel and levee facies on the submarine flanks of the volcano and formation of a thick, steep-sided ridge, suggest that the largest and most dense blocks were transported proximally as a high concentration granular flow. Of the submerged volume, 30% was deposited from the base of this granular flow, forming a linear, high-relief ridge that extends 7 km from shore. The remaining 70% of the submerged volume comprises the finer grain sizes, which were transported at least 40 km by turbidity currents on gradients of <2°. At several localities, the May 2006 distal turbidity currents ran up 200 m of topography and eroded up to 20 cm of underlying substrate. Multiple turbidites are preserved, representing current reflection from the graben margins and deflection around topography. The high energy of the May 2006 collapse resulted in longer submarine run out than the larger (210 × 10
6
m
3
) Soufrière Hills dome collapse in July 2003.</abstract><cop>Berlin/Heidelberg</cop><pub>Springer-Verlag</pub><doi>10.1007/s00445-011-0533-5</doi><tpages>15</tpages><orcidid>https://orcid.org/0000-0003-3689-3704</orcidid><orcidid>https://orcid.org/0000-0001-8901-2515</orcidid><oa>free_for_read</oa></addata></record> |
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| ispartof | Bulletin of volcanology, 2012-03, Vol.74 (2), p.391-405 |
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| language | eng |
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| subjects | Bathymetry Crystalline rocks Earth and Environmental Science Earth Sciences Earth, ocean, space Engineering and environment geology. Geothermics Exact sciences and technology Geology Geophysics Geophysics/Geodesy Hills Igneous and metamorphic rocks petrology, volcanic processes, magmas Lava Lava domes Mineralogy Natural hazards: prediction, damages, etc Research Article Sciences of the Universe Sedimentology Topography Turbidity Turbidity currents Volcanoes Volcanology |
| title | Submarine pyroclastic deposits formed during the 20th May 2006 dome collapse of the Soufrière Hills Volcano, Montserrat |
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