Fluid residence time regulates mineral transformation and elemental fluxes in the silicate weathering profiles-Supplementary materials

Description

This dataset supports a study of fluid residence time in silicate weathering profiles. It includes four natural profiles: CM and ZK01 basalt profiles, and TT and DY granite profiles. Tables S1–S4 report mineral abundances, CaO and MgO concentrations, and Ca and Mg mass-transfer coefficients. Tables S5–S8 report immobile element concentrations, calculated porosity, fluid residence time, flow velocity, permeability, and Ca–Mg weathering fluxes. Mineral abundances were measured by X-ray diffraction. Hydrological parameters were calculated using a one-dimensional Darcy flow model with geochemically constrained porosity and depth-dependent permeability. The data can be used to reproduce the results and compare residence-time controls on silicate weathering across lithologies.

Institutions

• University of Chinese Academy of Sciences

  Beijing, Beijing
• Chinese Academy of Sciences

  Beijing, Beijing

Categories

Funders

• National Key Research and Development Program of China

  Grant ID: 2022YFF0800501

Licence