*********************************************************************************************************
==============================================================
Subject: Volcano Listserve message - urgent. Live streaming of keynote presentations for the AGU Chapman Submarine volcanism
*********************************************************************************************************
Tuesday 31st of January
6-7PM (Australian Eastern Daylight Savings Time) Adam Soule (Woods Hole Oceanographic Institution, USA).
Title: Deep-Sea Synergy: Humans, Robots, and the Most Active Volcanic Systems on Earth
Adam investigates the dynamic interactions of heat and rocks in the deep earth with the crust and hydrosphere. He is involved in projects on mid-ocean ridges and young rifted margins with a special view to understanding submarine explosive eruptions. He is a veteran of many cruises exploring the floor of the oceans in a variety of tectonic settings including the East Pacific Rise, Mid-Atlantic Ridge as well as the Guaymas Basin near California. He is experienced in the use of robotic submersibles and his presentation will summarize the intersection of engineering and science that has led to the current use of underwater vehicles to study deep-sea volcanic processes. Through a discussion of some of the important discoveries in volcano science they enabled, he will explore how
near- and long-term technological advances may shape the future volcanic research in the deep sea.
Thursday 2nd February
6-7PM (Australian Eastern Daylight Savings Time) Cornel de Ronde (GNS New Zealand)
Title: Exploration of Intraoceanic Arc Seafloor Hydrothermal Systems: What do we Know?
Cornel¹s exploration of hydrothermal vents has revealed a world of remarkable spectacle, including Œlakes¹ of molten sulfur, chimneys expelling liquid CO2, spectacular eruptions on the seafloor and never before seen animals. The 6,900 km of intraoceanic arcs in the world equates to hydrothermal emissions equal to ~10% of that from the 60,000 km of mid-ocean ridges with a similar incidence of venting. Arc volcanos can host hot gas venting on top of cones, or in calderas, from near surface to water depths of 2 km. After expeditions to many volcanoes, including the long chain of underwater volcanoes that stretches from New Zealand north to Tonga, Cornel has compiled information from over 50 volcanic systems, to recognize three main vent types. 5% of hydrothermal vent systems are volcanic and are in various stages of eruption. The second, most common type (75%) expel magmatic gasses that have interacted with seawater near the seafloor and the third type forming 20% of hydrothermalvents expel less gas, but emitting plumes of copper, zinc and gold-rich metal complexes.
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.
==============================================================
