Primary Convener:
Shaily Rahman, University of Colorado Boulder

Convener:
Jeffrey Krause, Dauphin Island Sea Lab
Brandi Kiel Reese, Dauphin Island Sea Lab
Lizzy Trower, University of Colorado Boulder

Chair:
Shaily Rahman, University of Colorado Boulder
Jeffrey Krause, Dauphin Island Sea Lab

From subglacial environments to deep-ocean settings, reactive silica cycling plays a critical, and understudied, role in the co-evolution of the ocean-climate systems. In considering processes spanning from polymerization and nano-particle formation to burial, microbial diagenesis, and late diagenesis, this session invites abstracts that link silica explicitly or implicitly to carbon, nutrient, and trace element cycles across spatial (atomic-geomorphic facies) and temporal (e.g., past-modern-future) scales in support of the AGU 2025 theme of “Where Science Connects Us.” Experimental, observational, modeling, synthesis, and rumination (Schrödinger's cat) studies that can allow us to connect overarching biogeochemical principles between disciplines are welcome as we chart future directions. Extreme events and perturbations from laboratory to Earth-system scales that can elucidate kinetics are also encouraged. A gap in knowledge remains about the significant impact of microbial metabolisms and are also invited.

Index Terms
1030 Geochemical cycles
1041 Stable isotope geochemistry
1050 Marine geochemistry
4805 Biogeochemical cycles, processes, and modeling

Co-Organized Sessions:
Ocean Sciences

Suggested Itineraries:
Disasters‚ Calamities and Extreme Events
Gulf Coast Region
Climate Change and Global Policy

Cross-Listed:
B - Biogeosciences
OS - Ocean Sciences

Neighborhoods:
3. Earth Covering