TY - JOUR KW - dome collapse KW - Montserrat KW - Soufrière Hills Volcano KW - Submarine pyroclastic flow AU - J. Trofimovs AU - L. Amy AU - G. Boudon AU - C. Deplus AU - E. Doyle AU - N. Fournier AU - M.B. Hart AU - J. Komorowski AU - A. Le Friant AU - E.J. Lock AU - C. Pudsey AU - G. Ryan AU - R.S.J. Sparks AU - P.J. Talling AB - The Soufrière Hills volcano, Montserrat, West Indies, has undergone a series of dome growth and collapse events since the eruption began in 1995. Over 90\% of the pyroclastic material produced has been deposited into the ocean. Sampling of these submarine deposits reveals that the pyroclastic flows mix rapidly and violently with the water as they enter the sea. The coarse components (pebbles to boulders) are deposited proximally from dense basal slurries to form steep-sided, near-linear ridges that intercalate to form a submarine fan. The finer ash-grade components are mixed into the overlying water column to form turbidity currents that flow over distances 30 km from the source. The total volume of pyroclastic material off the east coast of Montserrat exceeds 280 \texttimes 106 m3, with 65\% deposited in proximal lobes and 35\% deposited as distal turbidites. BT - Geology DA - July, 2006 M1 - 7 N2 - The Soufrière Hills volcano, Montserrat, West Indies, has undergone a series of dome growth and collapse events since the eruption began in 1995. Over 90\% of the pyroclastic material produced has been deposited into the ocean. Sampling of these submarine deposits reveals that the pyroclastic flows mix rapidly and violently with the water as they enter the sea. The coarse components (pebbles to boulders) are deposited proximally from dense basal slurries to form steep-sided, near-linear ridges that intercalate to form a submarine fan. The finer ash-grade components are mixed into the overlying water column to form turbidity currents that flow over distances 30 km from the source. The total volume of pyroclastic material off the east coast of Montserrat exceeds 280 \texttimes 106 m3, with 65\% deposited in proximal lobes and 35\% deposited as distal turbidites. PY - 2006 SP - 549 EP - 552 T2 - Geology TI - Submarine pyroclastic deposits formed at the Soufrière Hills volcano, Montserrat (1995\quotesinglbaseÄ\ \i2003): What happens when pyroclastic flows enter the ocean? UR - http://geology.gsapubs.org/content/34/7/549.abstract VL - 34 ER -