A Unified Analytical Model for Pressure Solution With Fully Coupled Diffusion and Reaction

Journal Article · 13 February 2025 · Geophysical Research Letters

DOI: https://doi.org/10.1029/2024GL112975 · OSTI ID:2526655

Wang, Ziyan  ^[1]; Gilbert, Benjamin ^[1]

---

1. Energy Geosciences Division Lawrence Berkeley National Laboratory Berkeley CA USA

Abstract Geophysical models for pressure solution are typically developed for diffusion‐controlled or reaction‐controlled scenarios. We present a unified analytical model that considers fully coupled diffusion and reaction during pressure solution. The model recovers the diffusion‐controlled and reaction‐controlled models in the literature as specific limiting cases. When diffusion and reaction exhibit comparable influences, we validate the proposed model against independent numerical simulations. The proposed model is then employed in interpreting experimental measurements, demonstrating a better agreement compared to previous interpretations.

• Research Organization: Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
• Sponsoring Organization: US Department of Energy; USDOE; USDOE Office of Science (SC), Biological and Environmental Research (BER) (SC-23), Climate and Environmental Sciences Division (SC-23.1 )
• Grant/Contract Number: AC02-05CH11231
• OSTI ID: 2526655
• Journal Information: Geophysical Research Letters, Journal Name: Geophysical Research Letters Journal Issue: 4 Vol. 52; ISSN 0094-8276
• Publisher: American Geophysical Union (AGU)Copyright Statement
• Country of Publication: United States
• Language: English