Dear Colleagues,
We invite you to participate in a 3-day, 2-night (August 10-12) pre-meeting field trip, Eruptive history and magmatic system of Mount Hood, Oregon, as part of the 2017 IAVCEI Scientific Assembly.
Mount Hood is the tallest mountain in Oregon, a major economic driver for the Oregon economy, a Native American and cultural icon, and at only 70 km from Portland, Oregon, one of the closest Cascade Range stratovolcano to a major US city. Throughout its 500,000 yr history, Mount Hood has mostly produced lava flows and lava domes, the latter of which have produced broad volcaniclastic aprons, thick ash-cloud deposits, and far-reaching lahars. At least twice in its history, flank failures generated large-volume debris avalanches—the largest of which transformed to a lahar that crossed the Columbia River (50 km from source) and at least temporarily formed a 100-m-deep blockage. Explosive eruptions are rare even though nearby volcanoes of similar composition show much more eruptive diversity. With quiescent periods lasting more than 10,000 years to less than a thousand, Mount Hood erupts only a limited compositional range (andesite to low-silica dacite). It last erupted in the late 18th century and is only one of three volcanoes (along with Mount Baker and Lassen Peak) in the Cascade arc with significant CO2 degassing and strong mantle 3He/4He (>7). Come join us to investigate Mount Hood’s eruptive history and tectonic setting, debate proposed models of Hood’s magmatic system and implications for forecasting future eruptions, and discuss potential societal risks and current monitoring strategies at this Oregon icon.
Trip cost is $375/person—includes van transportation, lodging, breakfast Friday and Saturday, all lunches and snacks, and dinner Thursday night. For more information and registration please go to http://iavcei2017.org
Willie Scott (wescott@xxxxxxxx)
Cynthia Gardner (cgardner@xxxxxxxx)
Adam Kent (adam.kent@xxxxxxxxxxxxxxxxxxx
Volcano Listserv is a collaborative venture among Arizona State University (ASU), Portland State University (PSU), the Global Volcanism Program (GVP) of the Smithsonian Institution's National Museum of Natural History, and the International Association for Volcanology and Chemistry of the Earth's Interior (IAVCEI).
ASU - http://www.asu.edu/ PSU - http://pdx.edu/ GVP - http://www.volcano.si.edu/ IAVCEI - http://www.iavcei.org/
To unsubscribe from the volcano list, send the message: signoff volcano to: listserv@xxxxxxx, or write to: volcano-request@xxxxxxx.
To contribute to the volcano list, send your message to: volcano@xxxxxxx. Please do not send attachments.
==============================================================
