Satellite view of water and coastline

Chapman

Hydrothermal Circulation and Seawater Chemistry: What’s the chicken and what’s the egg?
Agros, Cyprus | 15-19 May 2023

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.

The village of Agros, Cyprus.

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.

Underwater image of hydrothermal circulation. Image Attribute: https://www.flickr.com/photos/noaaphotolib/5014975047/in/photolist-8Da4n2-93kmya.

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?
Lava flow hardening. Plant life grows around it. Image attribute:

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.

Blue ocean tide with foam

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?
Global Multi-Resolution Topography (GMRT) Synthesis of deep sea canyons off the Northeast Atlantic coast of North America

Chapman Conveners

Laurence Coogan, University of Victoria

Sasha Turchyn, University of Cambridge

Ann Dunlea, Woods Hole Oceanographic Institute

Wolfgang Bach, University of Bremen