Integrated Ocean Drilling Program; Expedition 340 preliminary report; Lesser Antilles volcanism and landslides; implications for hazard assessment and long-term magmatic evolution of the arc; 2 March-17 April 2012

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doi: 10.2204/
Author(s): Le Friant, Anne; Ishizuka, Osamu; Stroncik, Nicole A.; Slagle, Angela L.; Morgan, Sally; Adachi, Tatsuya; Aljahdali, Mohammed; Boudon, Georges; Breitkreuz, Christoph; Endo, Daisuke; Fraass, Andrew J.; Fujinawa, Akihiko; Hatfield, Robert G.; Hornbach, Matthew J.; Jutzeler, Martin; Kataoka, Kyoko S.; Lafureza Colas, Sara; Maeno, Fukashi; Manga, Michael; Martinez-Colon, Michael; McCanta, Molly C.; McManus, James; Palmer, Martin R.; Saito, Takeshi; Stinton, Adam; Subramanyam, Konduri S. V.; Talling, Peter J.; Tamura, Yoshihiko; Villemant, Benoît; Wall-Palmer, Deborah; Wang Fei
Integrated Ocean Drilling Program, College Station, TX
Author Affiliation(s): Primary:
Institut de Physique du Globe de Paris, Équipe de Géologie des Systèmes Volcaniques, Paris, France
Geological Survey of Japan, Japan
Texas A&M University, United States
Lamont-Doherty Earth Observatory, United States
University of Leicester, United Kingdom
Yamagata University, Japan
Florida State University, United States
Technische Universität Bergakadmie Freiberg, Germany
University of Tsukuba, Japan
University of Massachusetts at Amhurst, United States
Ibaraki University, Japan
Oregon State University, United States
Southern Methodist University, United States
University of Otago, New Zealand
Niigata University, Japan
University of Tokyo, Japan
University of California at Berkeley, United States
University of South Florida at Saint Petersburg, United States
Tufts University, United States
University of Southampton, United Kingdom
Shinshu University, Japan
Montserrat Volcano Observatory, Montserrat
National Geophysical Research Institute, India
Japan Agency for Marine-Earth Science and Technology, Japan
Plymouth University, United Kingdom
Chinese Academy of Sciences, Institute of Geology and Geophysics, China
Source: Preliminary Report (Integrated Ocean Drilling Program), Vol.340, 103p. Publisher: IODP Management International, College Station, TX, United States. ISSN: 1932-9423
Note: In English. 96 refs.
Summary: The Lesser Antilles Volcanism and Landslides project aims to further understanding of the constructive and destructive processes related to island arc volcanism. Processes occurring along these arcs are among the most fundamental on Earth. Styles of magmatism and eruptive activity are diverse in this geological setting not only between different arcs, but also between the different islands that make up an arc. Because of the association of volcanic activity in island arcs with potentially large geohazards (explosive eruptions and tsunamis), it is imperative to further investigate and thus better understand the evolution of these volcanoes and the histories of their related landslides. Knowledge of island arc volcanism is largely limited to the subaerial geological record. Combining this record with information from related submarine deposits will provide a more complete picture of volcanic activity in this geological setting. The Lesser Antilles arc lends itself well to achieving this combined record, offering a diverse range of magmatic and eruptive styles across a relatively small geographic area. In addition, the frequency of flank collapse events that result in the deposition of debris avalanches is high, with the style of flank collapse varying along the arc. Data acquired during this expedition will be utilized to further investigate magmatic evolution and eruptive activity along the Lesser Antilles arc. In addition, we hope to reach a better understanding of the mechanisms involved in both the transport and deposition of volcanic debris avalanche deposits and to assess the potential for volcanic hazards associated with these avalanches.
Year of Publication: 2012
Research Program: IODP Integrated Ocean Drilling Program
Key Words: 13 Areal Geology, General; Algae; Alteration; Antilles; Areal geology; Atlantic Ocean; Biostratigraphy; Boreholes; Caribbean Sea; Caribbean region; Cores; Erosion; Eruptions; Expedition 340; Foraminifera; Geochemistry; Geologic hazards; Hydrochemistry; IODP Site U1393; IODP Site U1394; IODP Site U1395; IODP Site U1396; IODP Site U1397; IODP Site U1398; IODP Site U1399; IODP Site U1400; IODP Site U1401; Integrated Ocean Drilling Program; Invertebrata; Island arcs; Landslides; Lesser Antilles; Lithostratigraphy; Magmatism; Magnetostratigraphy; Marine sediments; Mass movements; Microfossils; Nannofossils; Natural hazards; North Atlantic; Physical properties; Plantae; Pore water; Protista; Sediments; Subduction zones; Tephrochronology; Volcaniclastics; Volcanism; Volcanoes; Well logs; West Indies
Coordinates: N141600 N164400 W0612500 W0612800
Record ID: 2012063267
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