Matches in SemOpenAlex for { <https://semopenalex.org/work/W2012659722> ?p ?o ?g. }
Showing items 1 to 94 of
94
with 100 items per page.
- W2012659722 endingPage "112" @default.
- W2012659722 startingPage "95" @default.
- W2012659722 abstract "Fugen-dake, the main peak of Unzen Volcano, began a new eruption sequence on November 17, 1990. On May 20, 1991, a new lava dome appeared near the eastern edge of the Fugen-dake summit. Small-scale, 104–106 m3 in volume, Merapi-type block and ash flows were frequently generated from the growing lava dome during May–June, 1991. These pyroclastic flows were accompanied by co-ignimbrite ash plumes that deposited ash-fall deposits downwind of the volcano. Three examples of co-ignimbrite ash-fall deposits from Unzen pyroclastic flows are described. The volume of fall deposits was estimated to be about 30% by volume of the collapsed portions of the dome that formed pyroclastic flows. This proportion is smaller than that described for other larger co-ignimbrite ash-fall deposits from other volcanoes. Grain size distributions of the Unzen co-ignimbrite ash-fall deposits are bi-modal or tri-modal. Most ashes are finer than 4 phi and two modes were observed at around 4–7 phi and 9 phi. They are composed mainly of groundmass fragments. Fractions of another mode at around 2 phi are rich in crystals derived from dome lava. Some of the fine ash component fell as accretionary lapilli from the co-ignimbrite ash cloud indicating either moisture or electrostatic aggregation. We believe that the co-ignimbrite ash of Unzen block and ash flows were formed by the mechanical fracturing of the cooling lava blocks as they collapsed and moved down the slope. These ashes were entrained into the convective plumes generated off the tops of the moving flows." @default.
- W2012659722 created "2016-06-24" @default.
- W2012659722 creator A5005285079 @default.
- W2012659722 creator A5045911962 @default.
- W2012659722 creator A5067167249 @default.
- W2012659722 creator A5076059888 @default.
- W2012659722 creator A5078929953 @default.
- W2012659722 date "1999-04-01" @default.
- W2012659722 modified "2023-09-26" @default.
- W2012659722 title "Co-ignimbrite ash-fall deposits of the 1991 eruptions of Fugen-dake, Unzen Volcano, Japan" @default.
- W2012659722 cites W106779635 @default.
- W2012659722 cites W1964574387 @default.
- W2012659722 cites W1964974984 @default.
- W2012659722 cites W1974765650 @default.
- W2012659722 cites W1980735453 @default.
- W2012659722 cites W1985966918 @default.
- W2012659722 cites W2007492863 @default.
- W2012659722 cites W2008380155 @default.
- W2012659722 cites W2011806859 @default.
- W2012659722 cites W2014223712 @default.
- W2012659722 cites W2016677635 @default.
- W2012659722 cites W2018779827 @default.
- W2012659722 cites W2021908353 @default.
- W2012659722 cites W2049134722 @default.
- W2012659722 cites W2063690800 @default.
- W2012659722 cites W2072985677 @default.
- W2012659722 cites W2080413884 @default.
- W2012659722 cites W2093856018 @default.
- W2012659722 cites W2138687146 @default.
- W2012659722 cites W2154585316 @default.
- W2012659722 cites W2084479694 @default.
- W2012659722 doi "https://doi.org/10.1016/s0377-0273(98)00126-7" @default.
- W2012659722 hasPublicationYear "1999" @default.
- W2012659722 type Work @default.
- W2012659722 sameAs 2012659722 @default.
- W2012659722 citedByCount "26" @default.
- W2012659722 countsByYear W20126597222012 @default.
- W2012659722 countsByYear W20126597222013 @default.
- W2012659722 countsByYear W20126597222014 @default.
- W2012659722 countsByYear W20126597222015 @default.
- W2012659722 countsByYear W20126597222016 @default.
- W2012659722 countsByYear W20126597222017 @default.
- W2012659722 countsByYear W20126597222021 @default.
- W2012659722 crossrefType "journal-article" @default.
- W2012659722 hasAuthorship W2012659722A5005285079 @default.
- W2012659722 hasAuthorship W2012659722A5045911962 @default.
- W2012659722 hasAuthorship W2012659722A5067167249 @default.
- W2012659722 hasAuthorship W2012659722A5076059888 @default.
- W2012659722 hasAuthorship W2012659722A5078929953 @default.
- W2012659722 hasConcept C113754120 @default.
- W2012659722 hasConcept C114793014 @default.
- W2012659722 hasConcept C120806208 @default.
- W2012659722 hasConcept C125910819 @default.
- W2012659722 hasConcept C127313418 @default.
- W2012659722 hasConcept C165205528 @default.
- W2012659722 hasConcept C17409809 @default.
- W2012659722 hasConcept C183222429 @default.
- W2012659722 hasConcept C189092281 @default.
- W2012659722 hasConcept C24343810 @default.
- W2012659722 hasConcept C64551749 @default.
- W2012659722 hasConcept C95869378 @default.
- W2012659722 hasConceptScore W2012659722C113754120 @default.
- W2012659722 hasConceptScore W2012659722C114793014 @default.
- W2012659722 hasConceptScore W2012659722C120806208 @default.
- W2012659722 hasConceptScore W2012659722C125910819 @default.
- W2012659722 hasConceptScore W2012659722C127313418 @default.
- W2012659722 hasConceptScore W2012659722C165205528 @default.
- W2012659722 hasConceptScore W2012659722C17409809 @default.
- W2012659722 hasConceptScore W2012659722C183222429 @default.
- W2012659722 hasConceptScore W2012659722C189092281 @default.
- W2012659722 hasConceptScore W2012659722C24343810 @default.
- W2012659722 hasConceptScore W2012659722C64551749 @default.
- W2012659722 hasConceptScore W2012659722C95869378 @default.
- W2012659722 hasIssue "1-4" @default.
- W2012659722 hasLocation W20126597221 @default.
- W2012659722 hasOpenAccess W2012659722 @default.
- W2012659722 hasPrimaryLocation W20126597221 @default.
- W2012659722 hasRelatedWork W1412878439 @default.
- W2012659722 hasRelatedWork W1980352613 @default.
- W2012659722 hasRelatedWork W2012659722 @default.
- W2012659722 hasRelatedWork W2013828340 @default.
- W2012659722 hasRelatedWork W2078372806 @default.
- W2012659722 hasRelatedWork W2080520040 @default.
- W2012659722 hasRelatedWork W2151280029 @default.
- W2012659722 hasRelatedWork W2947867894 @default.
- W2012659722 hasRelatedWork W3005095153 @default.
- W2012659722 hasRelatedWork W3124890825 @default.
- W2012659722 hasVolume "89" @default.
- W2012659722 isParatext "false" @default.
- W2012659722 isRetracted "false" @default.
- W2012659722 magId "2012659722" @default.
- W2012659722 workType "article" @default.