Events

Please join us for our next seminar with our two speakers, Linda Sobolewski (Ruhr-Universität Bochum) and Christian Stenner (Alberta Speleological Society). 

Registration via the link below is required in order to receive the zoom meeting invitation and/or access the recording, which will become available after the meeting.

IAVCEI/IACS VIIC Seminar: Subglacial Volcanism and the Formation of Glaciovolcanic Cave System with Linda Sobolewski and Christian Stenner

22nd February, 2022 | 7a HST | 9a PST | 12p EST | 5p UTC

23rd February, 2022 | 2a JST | 6a NZT

Glaciovolcanism, which describes the interaction of heat from the Earth’s interior with various types of ice masses, can be found on several volcanoes worldwide. However, a rarely studied phenomenon is the formation of void spaces underneath the ice—glaciovolcanic caves. Examples are known from Mount Erebus (Antarctica), Mount Rainier and Mount St. Helens (USA). Although research was performed as early as the 1970s by W. Giggenbach on Mount Erebus, studies of void spaces created by volcano-ice interactions since then have been sporadic. Nevertheless, glaciovolcanic cave systems and their investigation have gained importance. Further advances have been made during the last decade, including research on volcanoes of the Cascade Volcanic Arc (USA), Mount Meager (Canada), and other parts of Antarctica. They have expediency as indicators of recurring volcanic activity, in hazard mitigation, and for understanding the hydrothermal cycles on volcanic edifies. Their expediency goes well beyond earth processes and facilitates discovery on several levels including as geobiological analogs for astrobiology/exobiology and as testing sites for precursor robotic technologies for solar system exploration.

Register in advance for this meeting:

https://uoregon.zoom.us/meeting/register/tJEpcOGorz0rH9Ry1VMXy4NckW8QmKMBU5Mp

After registering, you will receive a confirmation email containing information about joining the meeting.

Please join us for our next seminar with our two speakers, Jim Head and Kat Scanlon. 

Registration via the link below is required in order to receive the zoom meeting invitation and/or access the recording, which will become available after the meeting.

IAVCEI/IACS VIIC Seminar: Glaciovolcanism on Mars

8th December, 2021 | 2p PDT | 5p EDT | 10p UTC | 12p HST

9th December, 2021 | 7a JST 

Jim Head, Brown University

Volcano–Ice Interactions on Mars: Keys to Geologic and Atmospheric History

The current Mars ambient climate is a hypothermal, hyperarid desert with kilometers-thick accumulations of water ice at the poles. Geologically recent obliquity changes have transported significant quantities of ice equatorward to form glaciers of various types.  The nature of the ancient ambient climate of Mars is currently debated (Is it ‘warm and wet’ or ‘cold and icy’?).  All of these characteristics provide abundant opportunities to study volcano-ice interactions. Following a brief introduction to Mars environmental and volcanological histories, we will present several examples (volcanic edifices built under polar ice sheets, geothermal heating of volcano summit ice, top-down melting of ice sheets by lava flows, mega-lahars, dikes now exposed in former ice sheets, etc.). These illustrate how volcano-ice interaction analysis has helped to improve our understanding of Mars’ volcanic and climate histories and their interrelationships.

Kat Scanlon, Brown University

Volcano–Ice Interactions in The Tharsis Montes Glacial Deposits, Mars

Orographic lifting by the three enormous Tharsis Montes volcanoes on Mars resulted in glaciation on their windward flanks as recently as ~125 million years ago, coinciding with volcanic activity in the region. I will review previous work on volcano-ice interactions in the glacial deposits adjoining the Arsia Mons volcano, and discuss new high-resolution images and digital terrain models of the better-exposed hypothesized glaciovolcanic landforms adjoining the Pavonis Mons volcano.

Register in advance for this meeting:

https://uoregon.zoom.us/meeting/register/tJcrdO-prjouGdIiTmluEB9cabjkW5hyVrmd

After registering, you will receive a confirmation email containing information about joining the meeting.

Please join us for our next seminar with our two speakers, Alastair Hodgetts and Ben Edwards. Registration via the link below is required in order to receive the zoom meeting invitation and/or access the recording, which will become available after the meeting.

IAVCEI/IACS VIIC Seminar: Tuya Talks by Alastair Hodgetts and Ben Edwards

14th September, 2021 | 6a PDT | 9a EDT | 2p BST | 10p JST | 3a HST

Alastair Hodgetts | University of Birmingham | The Thórólfsfell tuya, South Iceland – A new type of basaltic glaciovolcano

This talk will examine the first description and interpretation of Thórólfsfell, a basaltic tuya on the southern flank of Tindfjallajökull central volcano, S. Iceland. This asymmetrical, effusion-dominated glaciovolcano is constructed of an unusual set of lithofacies, unlike other tuyas described elsewhere, and displays no evidence for substantial and sustained meltwater accumulation. The atypical eruptive and glacio-hydrological conditions responsible will be explored and comparisons to other effusion-dominated tuyas (in Iceland and elsewhere) will allow us to question whether effusion-dominated tuyas are perhaps more diverse and varied than currently thought? A criterion for identifying other Thórólfsfell-type tuyas will be outlined and compared and contrasted to the ‘classic’ tuya model.

Ben Edwards | Dickinson College | Trouble with tuyas? Some thoughts on scholarship and definitions for the ‘new’ science of glaciovolcanism

Although scientists in the early 1900’s first recognized that some volcanic deposits in Iceland and British Columbia likely formed by volcano-ice interactions, definitions and classifications for these curious deposits have followed more slowly. For example, the now-standard term ‘glaciovolcanism’ was only first used in a publication in 2002. We will briefly discuss the history of a few of these terms and classifications with a special focus on better understanding the origins of the word ‘tuya’, and whether or not it should be used as a general synonym for ‘subglacial volcano’.

You are invited to a Zoom meeting.

When: Sep 14, 2021 06:00 AM Pacific Time (US and Canada)

Register in advance for this meeting:

https://uoregon.zoom.us/meeting/register/tJAufuquqTwsH9cKxRiokVbg2DTPJlfGoiIL

After registering, you will receive a confirmation email containing information about joining the meeting.

Please join us for our next virtual seminar with Dr Alexander Wilson speaking about his PhD research on volcano-ice interactions in Canada.

Glacial pumping of a magma-charged lithosphere: the link between ice and volcanoes in the Garibaldi volcanic belt

In this seminar, Dr. Alexander Wilson will present his PhD research examining the relationships between the Pleistocene Cordilleran Ice Sheet and volcanism in the Garibaldi Volcanic belt (GVB), Canada. Alex will discuss the diverse and unique nature of glaciovolcanism in the GVB and demonstrate how these volcanoes may be used to recover the extent and thickness of paleo ice. Could waxing and waning glaciers cause continental arc volcano eruptions? Alex will also present modelling and field-based research that reveals how loading and unloading of the Cordilleran Ice Sheet may have controlled the timing, nature and intensity of eruptions in the GVB.

The live talk will be held on Zoom and is scheduled for 20th May 2021 at 5 pm Pacific Time (US and Canada). A recording will be available for those who cannot attend the live event, but registration will still be required.

To attend or to receive the link to the recording, please register at https://uoregon.zoom.us/meeting/register/tJcscOyhpz4pGNBhiBRT51SbBgcAfptm2bil

After registering, you will receive a confirmation email containing information about joining the meeting.

We would also love to hear from you if you would like to speak at a future seminar, and we particularly encourage Early Career Researchers to get in touch!

Please join us for our first virtual seminar of the year!

John Smellie will be kicking off the series with an overview talk titled "Glaciovolcanism - where we are and how we got here".
The talk will be held on Zoom, with an opportunity for discussion afterwards. 

The live talk is scheduled for 24th February at 6 pm GMT.
A recording will be available for those who cannot attend the live event, but registration will still be required.

To attend or to receive the link to the recording, please register at https://uoregon.zoom.us/meeting/register/tJ0ocOmorTkqHdZzF8awezq0wySyQfRkpRRU

We would also love to hear from you if you would like to speak at a future seminar, and we particularly encourage Early Career Researchers to get in touch!

European Geosciences Union (EGU) General Assembly 19-30 April 2021 (online)
Abstract deadline: 13 Jan 2021, 13:00 CET

Session: Volcano-glacier interactions: Arctic, Antarctic, and globally
https://meetingorganizer.copernicus.org/EGU21/session/39472

Session: Risks from a changing cryosphere
https://meetingorganizer.copernicus.org/EGU21/session/39057

Icy lava: processes and products of volcano-ice interaction at Ruapehu and Tongariro stratovolcanoes
https://confer.eventsair.com/iavcei2022/icy-lava

Summary: This field trip will provide a comprehensive overview of the diverse Late Pleistocene glaciovolcanic features of the Tongariro National Park (TNP). These iconic mountains that have been shaped by fire and ice provide excellent outcrops for studying the influence of glaciers and meltwater on eruption styles and deposits at andesitic stratovolcanoes. The field trip will consist of 3 full-day hikes to explore the processes and products of lava-ice interaction at Ruapehu (2 days) and subglacial volcanism at Tongariro (1 day). Participants will walk through glacial valleys and over ice-impounded lava flows to get hands-on experience with till, moraines, hyaloclastites, subaqueous tuff breccias, colonnades, and fine-scale cooling fractures in lavas. A wealth of new geological, glaciological and geochronological data for the TNP has given rise to detailed volcano evolution models and paleoclimate reconstructions, making this a unique (and beautiful) location to learn about the life cycles of stratovolcanoes. 

Leaders: Rosie Cole (University of Otago), Chris Conway (Geological Survey of Japan), Dougal Townsend (GNS Science), James White (University of Otago)

Duration: pre-conference; 4 days/3 nights (probably 17-20 Jan)

Fitness level: Medium (each day will consist of a ~10-15 km hike over uneven and sometimes steep terrain)

Organized by the VIIC officers, this will be a great opportunity for researchers to get together for discussions about glaciovolcanism in the field. 

Save the date, keep an eye out for updates, and hope to see you there! 

V008-0007 - Syn-eruptive “rehydration” of ash at Redoubt Volcano, Alaska during eruption through a glacier
https://agu.confex.com/agu/fm20/meetingapp.cgi/Paper/698539
Hudak et al.
December 8

V008-0008 - Tephra compositions and textures from historical and Holocene eruptions of Shishaldin Volcano, Alaska
https://agu.confex.com/agu/fm20/meetingapp.cgi/Paper/711337
Loewen et al.
December 8

V018-03 - Volcano Databases
https://agu.confex.com/agu/fm20/meetingapp.cgi/Paper/688785
Cottrell et al.
December 10

V026-06 - Investigation of Magmatic and Hydrothermal Processes at Erebus Volcano, Antarctica (Invited)
https://agu.confex.com/agu/fm20/meetingapp.cgi/Paper/719142
Ilanko et al.
December 11

P059-03 - Identifying the products of volcano-ice interaction in Icelandic Mars analog sedimentary environments using Mars rover techniques.
https://agu.confex.com/agu/fm20/meetingapp.cgi/Paper/749570
Bedford et al.
December 15