Carbon and Strontium Isotope Insights on Bedrock Chemical Weathering: Implication for CO2 Removal via Natural Water Alkalinization
Year: 2023
Type: conference-abstract
Abstract: Chemical weathering is an important mechanism to remove CO 2 from the atmosphere.[1] To calculate the CO 2 removed through bedrock chemical weathering via river chemistry, it is crucial to estimate the contribution of alkalinity from carbonate and silicate rock weathering.In this study, we investigate the bedrock chemical weathering process in a headwater watershed in north-eastern Vermont U.S., with the bedrock of carbonaceous phyllites and limestones.We collected water samples from two stream outlets, three tile drains, and 12 groundwater wells over eight months and measured major cations, anions, alkalinity, trace metals, carbon isotopes (i.e., δ 13 C and Δ 14 C) of dissolved inorganic carbon (DIC), and Sr isotopic composition (i.e., 87 Sr/ 86 Sr and δ 88/86 Sr).The chemical and isotopic signals
Source: Goldschmidt Abstracts
Authors: Fengchao Sun, Jiuyuan Wang, Rob Rioux, Quinn Zacharias, Noah Planavsky, Peter Raymond, James Saiers
Institution: Yale University
Language: English
Subfield: Geochemistry and Petrology
Field: Earth and Planetary Sciences
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W4389561535