| Abstract: | The largest and most intense lava-dome collapse during the eruption of Soufrie??re Hills volcano, Montserrat, 1995-2004, occurred 12-13 July 2003. The dome collapse involved around 200 ?? 106 m3 of material and was associated with a phenomenon previously unknown at this volcano. Large pyroclastic flows at the peak of the dome collapse interacted explosively with seawater at the mouth of the Tar River Valley and generated a hot, dry base surge that flowed 4 km inland and 300 m uphill. The surge was destructive to at least 25 m above the ground and it carbonized vegetation. The resulting two-layer deposits were as much as 0.9 m thick. Although the entire collapse lasted 18 h, the base surge greatly increased the land area affected by the dome collapse in a few minutes at the peak of the event, illustrating the complex nature of the interaction between pyroclastic flows and seawater. ?? 2005 Geological Society of America. |
| Genre: | Article |
| ProdID: | 70029458 |
| Citation Author: | Edmonds, M.; Herd, R. A. |
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| Citation End Page: | 248 |
| Citation Issue: | 4 |
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| Citation Language: | English |
| Citation Larger Work Title: | Geology |
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| Citation Number Of Pages: | 4 |
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| Citation Search Results Text: | Inland-directed base surge generated by the explosive interaction of pyroclastic flows and seawater at Soufrie??re Hills volcano, Montserrat; 2005; Article; Journal; Geology; Edmonds, M.; Herd, R. A. |
| Citation Start Page: | 245 |
| Citation Volume: | 33 |
| Citation Year: | 2005 |
| Type: | citation/reference |
| Text: | Inland-directed base surge generated by the explosive interaction of pyroclastic flows and seawater at Soufrie??re Hills volcano, Montserrat; 2005; Article; Journal; Geology; Edmonds, M.; Herd, R. A. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| URL (DIGITAL OBJECT IDENTIFIER): | http://dx.doi.org/10.1130/G21166.1 |
| Date Other: | Sat, 1 Jan 2005 00:00 -0600 |
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