
Chapman
Hydrothermal Circulation and Seawater Chemistry: What’s the chicken and what’s the egg?
Agros, Cyprus | 15-19 May 2023
The Scientific Program is now live!
About the Meeting
This meeting will provide a forum for discussing of the role of both on- and off-axis hydrothermal fluxes in regulating ocean biogeochemistry and the Earth system, and the feedbacks between the Earth’s surface environment and hydrothermal fluxes. The meeting will consider all timescales from the modern (e.g., insights and outstanding questions based on recent GEOTRACES work) through to the role of hydrothermal systems on the early Earth and exoplanets (e.g., waterworlds). We aim to bring together researchers from diverse research fields with the hope of initiating new interdisciplinary research.
The meeting will occur over five days with three days of oral and poster presentations and associated discussion, and two days in the field in the Troodos ophiolite (Cyprus) – a uniquely well-preserved section of ancient oceanic crust. Field days will be designed for the non-expert, and no geological experience will be required to fully participate.

Who should attend
We invite participants from all disciplines; however, we encourage participants from chemical oceanography, Earth system modelling, marine geology, paleoceanography, paleoclimatology, Earth history, geochemistry and related fields to attend.

Abstract Themes
Abstracts should fit into one of the following five session themes:
- Session 1: What processes and boundary conditions control high-temperature (on-axis) hydrothermal fluxes?
- Session 2: What processes and boundary conditions control low-temperature (off-axis) hydrothermal fluxes?
- Session 3: How and why do hydrothermal fluxes vary in space and time in the modern and recent ocean?
- Session 4: How and why did hydrothermal fluxes vary over the Phanerozoic under different boundary conditions?
- Session 5: What might control hydrothermal fluxes on habitable exoplanets and the early Earth?

Confirmed Participants
The scientific program is live. Click here to view the program.
The following list shows the confirmed invited speakers for the conference.
Bill Seyfried, University of Minnesota, USA
Roz Coggon, University of Southampton, UK
Jessica Fitzsimmons, Texas A&M University, USA
Lee Kump, Penn State University, USA
Ben Tutolo, University of Calgary, Canada
Xin Zhang, Institute of Oceanology, Qingdao, China
Danielle Santiago-Ramos, Rutgers University, USA
Sambudha Misra, Indian Institute of Science, India
Rachel Lauer, University of Calgary, Canada
Mebrahtu Weldeghebriel, Princeton University, USA
Joshua Krissansen-Totten, University of Washington, USA

Format Overview
The meeting will alternate between traditional conference style talks, discussion and posters (Mon, Wed, Fri) and field trips (Tue, Thur). The five sessions will start with invited overview talks and comprise a mix of invited and contributed talks with ample time for discussion. All participants will have the opportunity to present a poster.

Session Topics
- Session 1: What processes and boundary conditions control high-temperature (on-axis) hydrothermal fluxes?
- Session 2: What processes and boundary conditions control low-temperature (off-axis) hydrothermal fluxes?
- Session 3: How and why do hydrothermal fluxes vary in space and time in the modern and recent ocean?
- Session 4: How and why did hydrothermal fluxes vary over the Phanerozoic under different boundary conditions?
- Session 5: What might control hydrothermal fluxes on habitable exoplanets and the early Earth?

Field Trips
Field trips on Tuesday and Thursday will visit the Troodos ophiolite to observe the traces of hydrothermal processes in this piece of Cretaceous ocean crust. We will visit outcrops from the paleo-seafloor to the mantle. The Troodos ophiolite has the best preserved section of upper oceanic crust of any ophiolite in the word and is recognized as a UNSECO world heritage site - the Troodos Geopark.

Registration
The registration deadline is 12 April 2023. Registration is limited to presenting authors.
Registration fees will include:
- access to all scientific sessions on Monday, Wednesday, and Friday
- field trips on Tuesday and Thursday
- accommodations at the Rodon Hotel from Sunday, 14 May through Saturday, 20 May
- Dinner on Sunday, 14 May, all meals Monday through Friday, and breakfast on Saturday, 20 May
- Friday banquet dinner

Rates
Professional with single occupancy: $1,200.00 USD
Professionals with double occupancy: $900.00 USD
Students/Low-and lower-middle income country residents with single occupancy: $900.00 USD
Students/Low-and lower-middle income country residents with single occupancy: $700.00 USD
Cancellation Policy
If you must cancel your registration, you must email AGU with written notification.
Registration cancellations received by 12 April 2023 will receive a full refund.
Cancellations received between 13 and 19 April 2023 will have a $50 processing fee deducted.
No refunds will be issued after 19 April 2023.

Venue
The Rodon Hotel is the Chapman venue. Attendees will stay, dine, participate in the scientific program, and network at the Rodon in Agros, Cyprus. Agros is a small village, located in the Troodos mountain range.

Hydrothermal Circulation and Seawater Chemistry Chapman Travel Grants
The Chapman Conference conveners are seeking funding to support travel for students and early career scientists. The deadline to apply has passed. If you have any questions please send an email.

Chapman Conveners
Laurence Coogan, University of Victoria
Sasha Turchyn, University of Cambridge
Ann Dunlea, Woods Hole Oceanographic Institute
Wolfgang Bach, University of Bremen
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