Program

Note: Most early career participants will arrive Sunday afternoon/evening (target housing check-in 3 – 6 pm). Most other participants will arrive Monday with a target check in time 3 – 6 pm. Other check in times are possible, just let us know.

Day 1 (Monday):

Early career activities, lightning talks, welcome reception and arrivals.

7:00 – 9:00 AM Breakfast

8:30 – 9:00 AM – Check in/nametags

9:00 AM – Introduction to the workshop and ECR day (Kent, Dufek)

9:10 AM – Quick introduction roundtable

9:20 AM – Introduction to the Cascades (Kent)

9:45 AM – Coffee

10:15 AM – Introduction to Cascade magmatic systems (Dufek)

10:40 AM – Erik Klemetti Science Writing Mini Workshop

11:30 AM – ECR Lightning talks (1-2 minute intro to poster/talk/research)

12:15 PM – Lunch

1:15 PM – Field trip to Lava Butte etc. (about 30 minutes drive each way, plus two short walks (about 1 miles each) – one on a smooth path the other through light forest on fire roads

4:00 PM – Return to OSU Cascades

4:30 PM – Icebreaker

Day 2 (Tuesday):

9:00 AM – Introductions: Joe Dufek and Adam Kent

9:15 AM – Morning Keynote: The past, present and future of Cascadia subduction zone science

Anita Grunder (Oregon State University) and Gene Humphreys (University of Oregon)

Session 1: Tectonic-Magmatic connections in the Cascadia Subduction Zone

10:15 AM – Invited Speaker: Paul Bedrosian (USGS)

10:40 AM – Coffee Break – 20 min

Session 1 Speakers (15 minute talks with 5 minute questions)

11:00 AM – Leif Karlstrom (University of Oregon) State shifts in the deep Critical Zone drive landscape evolution and increase volcanic hazards in the central Oregon Cascades

11:20 AM – Alyssa K. Smith (Portland State University) Regional Scale Investigation of Widespread Basaltic Andesites of the Central to Northern Oregon Cascade Arc

11:40 AM – Discussion (All speakers in the morning session will act in a panel with a moderator). Also 1-slide pop-ups to address the following questions will be encouraged.

Discussion questions:

How have changes in subduction dynamics, geometry and structure modulated Cascadia magmatism over time?
What factors have led to segmentation of the Cascade arc? How is segmentation manifested in the geophysical and geochemical data sets?
How does upper crustal tectonics and structure modulate the magmatic signal?

12:15 PM – Lunch

1:30 PM – Afternoon Keynote: Cascades volcanic hazards and modern mitigation efforts

Jon Major (USGS)

2:10-2:30 PM – Coffee

2:30 PM – Session 2: Melt distribution in the crust

2:30 PM – Michelle Muth (invited), (University of Washington)

2:50 PM – Kathleen McKee (Vanderbilt University) Investigating the relationship between deep long-period earthquakes and volatile saturation depth and exsolution in the Alaska-Aleutian Subduction zone using geophysical and geochemical data

3:10 PM – Kellie Wall (USGS) From source to surface, the journey of mafic magmas over 3.5 million years in the Goat Rocks area, WA

3:30 PM – Penny Wieser (University of California, Berkeley) A compilation of Magma Storage depths along the Cascade Arc from geochemical and geophysical datastreams: What we know, and what we need to find out!

3:50 – 4:30 – PM Discussion (All speakers in the morning session will act in a panel with a moderator). Also 1-slide pop-ups to address the following questions will be encouraged.

Discussion questions

What are the current limits of geochemical and geophysical approaches to distinguish the history and location of magma bodies?
What role can joint inversion of multiple geophysical, petrological and geochemical datasets play in constraining melt fraction and location? What is the state of understanding of physical parameters in interpreting geophysical datasets?
What are the melt residence times in different regions of the crust? What is the melt fraction-time relationship for transcrustal magmas?

4:30 – 6:00 PM – Posters and Reception

6:00 – 7:00 PM – Dinner

Day 3 (Wednesday):

7:00 – 9:00 AM – Breakfast

Morning Keynote: Building a Volcanic Community

9:00 am – Daniele McKay (UO, OSU, Central Oregon Geoscience Society)

Session 3 – Recent volcanism and magmatism in the Cascade arc and associated regions

9:30 Invited Talk: Kathy Cashman (University of Oregon)

10:00 AM Coffee

10:20 AM Emily Johnson (USGS) Mafic monogenetic volcanism in the central Oregon Cascades: Timing, eruption styles, magma compositions, and storage depths

10:40 AM Eric Klemetti (Denison University) A Comparison of the Magmatic Processes at two Quaternary Cascade intermediate-to-silicic Dome Fields: Oregon’s Tumalo Dome Field and California’s Lassen Dome Field

11:00 AM Annika Dechert (University of Oregon) Zircon constraints on the eruptive sequence and magma evolution of rhyolites at South Sister Volcano, Oregon

11:20 AM Yannick LeMoigne (Geologic Survey of Canada) Eruptive History of the Garibaldi Volcanic Field, British Columbia, Canada

11:40 – 12:30 AM Discussion (All speakers in the morning session will act in a panel with a moderator). Also 1-slide pop-ups to address the following questions will be encouraged.

Discussion Questions:

What are the causes of variations in geophysical, volcanic and geochemical data sets and implications for subduction processes?
What is the distribution and evolution of intermediate and silicic central volcanoes vs. dispersed monogenetic volcanism and what processes influence this distribution?
What is the relation between volcanism and the geophysical character of the arc (seismic, heat flow, gravity, etc.)?

12:30 – 2:00 PM Lunch

Session 4: The nature of active magma reservoirs and storage underneath Cascade volcanoes.

2:00 PM Invited Talk: Geoff Abers (Cornell University) Imaging crustal magma systems – lessons from iMUSH

2:30 PM Philipp Ruprecht (University of Nevada, Reno) Mafic magmatic enclaves – from eruption trigger to rhyolite factory

2:50 – 3:20 PM Coffee

3:20 PM Sarah Aufrère (Simon Fraser University) Magmatic Processes and Short Pre-Eruptive Timescales at the Mount Meager Volcanic Complex, BC, Canada

3:40 PM Jessica J. Bersson (Arizona State University) Petrogenesis and Pre-eruptive Storage of Young Explosive Glacier Peak Dacite

3:40 – 4:30 Discussion

What are the storage conditions of magmas in Cascade magmatic centers, e.g. cold vs. warm magma storage and the role of mushes?
How have recent combined geophysical and geochemical examinations (e.g. iMUSH) contributed to insights into the storage conditions of contemporary systems?
What does the crystal record from recent eruptions indicate about the thermal history and conditions leading up to eruptions?
How does the flux of magma and volatiles contribute to the amount and chemical diversity of magmas in the Cascades, and influence volcanic and seismic hazards?
How does the flux of magma and volatiles contribute to the amount and chemical diversity of magmas in the Cascades, and influence volcanic and seismic hazards?

4:30 – 6:00 PM Posters and Reception

6:00 – 7:00 PM Dinner

Day 4 (Thursday)

Field Excursion

7:00 – 9:00 AM Breakfast

Tumalo Tuff, Newberry, Deschutes formation

Rotate to different locations. Packed lunch.

Day 5 (Friday)

7:00 – 9:00 AM Breakfast

8:30 – 11:00 AM VICTOR workshop, Invited Presentation by Einat Lev (Columbia University)

11:00 -11:30 AM Coffee

11:30 AM Morning Keynote: Geohazards of Cascadia

Wendy Stovall (USGS) – USGS Volcano Hazard Program initiatives to reduce risk at high-threat U.S. volcanoes: opportunities for collaboration and capacity building

12:00 – 1:30 Lunch

Session 5: Monitoring and Eruptions

1:30PM – Mike Poland (USGS) A geophysical tour of Cascade volcanoes

1:55PM – Kristen Fauria (Vanderbilt University) Plume heights in water-rich explosive eruptions

2:15 PM – Johan Gilchrist (University of Oregon) Quantifying “boiling-over” versus discrete eruption column collapse to predict the timing and intensity of pyroclastic density currents

2:35 PM – Joe Biasi (University of Wyoming) Magnetic monitoring of volcanoes – a low-cost alternative to gravimetry?

2:55 – 3:20 PM – Discussion (All speakers in the session will act in a panel with a moderator). Also 1-slide pop-ups to address the following questions will be encouraged.

Discussion Questions:

What is the current state of volcano monitoring in the Cascades and how will on-going initiatives shape the available data?
What have we learned about eruptive sequences from the depositional record?
What have the products of Cascades eruptions indicated about eruption dynamics and how can this be used to better prepare for future eruptions?

3:20 PM Concluding Discussion:

What measurements and observations should we be making in the future?

Note: Most early career participants will arrive Sunday afternoon/evening (target housing check-in 3 – 6 pm). Most other participants will arrive Monday with a target check in time 3 – 6 pm. Other check in times are possible, just let us know.

Day 1 (Monday):

Early career activities, lightning talks, welcome reception and arrivals.

7:00 – 9:00 AM Breakfast

8:30 – 9:00 AM – Check in/nametags

9:00 AM – Introduction to the workshop and ECR day (Kent, Dufek)

9:10 AM – Quick introduction roundtable

9:20 AM – Introduction to the Cascades (Kent)

9:45 AM – Coffee

10:15 AM – Introduction to Cascade magmatic systems (Dufek)

10:40 AM – Erik Klemetti Science Writing Mini Workshop

11:30 AM – ECR Lightning talks (1-2 minute intro to poster/talk/research)

12:15 PM – Lunch

1:15 PM – Field trip to Lava Butte etc. (about 30 minutes drive each way, plus two short walks (about 1 miles each) – one on a smooth path the other through light forest on fire roads

4:00 PM – Return to OSU Cascades

4:30 PM – Icebreaker

Day 2 (Tuesday):

9:00 AM – Introductions: Joe Dufek and Adam Kent

9:15 AM – Morning Keynote: The past, present and future of Cascadia subduction zone science

Anita Grunder (Oregon State University) and Gene Humphreys (University of Oregon)

Session 1: Tectonic-Magmatic connections in the Cascadia Subduction Zone

10:15 AM – Invited Speaker: Paul Bedrosian (USGS)

10:40 AM – Coffee Break – 20 min

Session 1 Speakers (15 minute talks with 5 minute questions)

11:00 AM – Leif Karlstrom (University of Oregon) State shifts in the deep Critical Zone drive landscape evolution and increase volcanic hazards in the central Oregon Cascades

11:20 AM – Alyssa K. Smith (Portland State University) Regional Scale Investigation of Widespread Basaltic Andesites of the Central to Northern Oregon Cascade Arc

11:40 AM – Discussion (All speakers in the morning session will act in a panel with a moderator). Also 1-slide pop-ups to address the following questions will be encouraged.

Discussion questions:

How have changes in subduction dynamics, geometry and structure modulated Cascadia magmatism over time?

What factors have led to segmentation of the Cascade arc? How is segmentation manifested in the geophysical and geochemical data sets?

How does upper crustal tectonics and structure modulate the magmatic signal?

12:15 PM – Lunch

1:30 PM – Afternoon Keynote: Cascades volcanic hazards and modern mitigation efforts

Jon Major (USGS)

2:10-2:30 PM – Coffee

2:30 PM – Session 2: Melt distribution in the crust

2:30 PM – Michelle Muth (invited), (University of Washington)

2:50 PM – Kathleen McKee (Vanderbilt University) Investigating the relationship between deep long-period earthquakes and volatile saturation depth and exsolution in the Alaska-Aleutian Subduction zone using geophysical and geochemical data

3:10 PM – Kellie Wall (USGS) From source to surface, the journey of mafic magmas over 3.5 million years in the Goat Rocks area, WA

3:30 PM – Penny Wieser (University of California, Berkeley) A compilation of Magma Storage depths along the Cascade Arc from geochemical and geophysical datastreams: What we know, and what we need to find out!

3:50 – 4:30 – PM Discussion (All speakers in the morning session will act in a panel with a moderator). Also 1-slide pop-ups to address the following questions will be encouraged.

Discussion questions

What are the current limits of geochemical and geophysical approaches to distinguish the history and location of magma bodies?

What role can joint inversion of multiple geophysical, petrological and geochemical datasets play in constraining melt fraction and location? What is the state of understanding of physical parameters in interpreting geophysical datasets?

What are the melt residence times in different regions of the crust? What is the melt fraction-time relationship for transcrustal magmas?

4:30 – 6:00 PM – Posters and Reception

6:00 – 7:00 PM – Dinner

Day 3 (Wednesday):

7:00 – 9:00 AM – Breakfast

Morning Keynote: Building a Volcanic Community

9:00 am – Daniele McKay (UO, OSU, Central Oregon Geoscience Society)

Session 3 – Recent volcanism and magmatism in the Cascade arc and associated regions

9:30 Invited Talk: Kathy Cashman (University of Oregon)

10:00 AM Coffee

10:20 AM Emily Johnson (USGS) Mafic monogenetic volcanism in the central Oregon Cascades: Timing, eruption styles, magma compositions, and storage depths

10:40 AM Eric Klemetti (Denison University) A Comparison of the Magmatic Processes at two Quaternary Cascade intermediate-to-silicic Dome Fields: Oregon’s Tumalo Dome Field and California’s Lassen Dome Field

11:00 AM Annika Dechert (University of Oregon) Zircon constraints on the eruptive sequence and magma evolution of rhyolites at South Sister Volcano, Oregon

11:20 AM Yannick LeMoigne (Geologic Survey of Canada) Eruptive History of the Garibaldi Volcanic Field, British Columbia, Canada

11:40 – 12:30 AM Discussion (All speakers in the morning session will act in a panel with a moderator). Also 1-slide pop-ups to address the following questions will be encouraged.

Discussion Questions:

What are the causes of variations in geophysical, volcanic and geochemical data sets and implications for subduction processes?

What is the distribution and evolution of intermediate and silicic central volcanoes vs. dispersed monogenetic volcanism and what processes influence this distribution?

What is the relation between volcanism and the geophysical character of the arc (seismic, heat flow, gravity, etc.)?

12:30 – 2:00 PM Lunch

Session 4: The nature of active magma reservoirs and storage underneath Cascade volcanoes.

2:00 PM Invited Talk: Geoff Abers (Cornell University) Imaging crustal magma systems – lessons from iMUSH

2:30 PM Philipp Ruprecht (University of Nevada, Reno) Mafic magmatic enclaves – from eruption trigger to rhyolite factory

2:50 – 3:20 PM Coffee

3:20 PM Sarah Aufrère (Simon Fraser University) Magmatic Processes and Short Pre-Eruptive Timescales at the Mount Meager Volcanic Complex, BC, Canada

3:40 PM Jessica J. Bersson (Arizona State University) Petrogenesis and Pre-eruptive Storage of Young Explosive Glacier Peak Dacite

3:40 – 4:30 Discussion

What are the storage conditions of magmas in Cascade magmatic centers, e.g. cold vs. warm magma storage and the role of mushes?

How have recent combined geophysical and geochemical examinations (e.g. iMUSH) contributed to insights into the storage conditions of contemporary systems?

What does the crystal record from recent eruptions indicate about the thermal history and conditions leading up to eruptions?

How does the flux of magma and volatiles contribute to the amount and chemical diversity of magmas in the Cascades, and influence volcanic and seismic hazards?

How does the flux of magma and volatiles contribute to the amount and chemical diversity of magmas in the Cascades, and influence volcanic and seismic hazards?

4:30 – 6:00 PM Posters and Reception

6:00 – 7:00 PM Dinner

Day 4 (Thursday)

Field Excursion