Reviewer Recommendations

This reviewer demonstrates clear topical and methodological relevance to the manuscript through their extensive research on carbon cycle dynamics and climate change, which aligns with the manuscript's focus on chemical weathering of carbonate minerals and its role in the global carbon cycle. Additionally, the reviewer's experience with paleoclimate perspectives and the mechanisms regulating carbon dynamics provides a solid methodological foundation for evaluating the manuscript's approach to estimating carbon sink fluxes. Their familiarity with hydrochemical methods further supports their capacity to assess the manuscript's methodologies and findings.

The reviewer's engagement in peer review is indicated by their completion of 79 reviews, with 9 completed in the past 12 months, demonstrating a sustained involvement in the review process. Their average turnaround time of 6 days reflects reliability and efficiency in providing timely feedback, while a completion rate of 40% suggests a commitment to thorough evaluations. With no current open assignments, the reviewer is available to dedicate sufficient attention to this manuscript, ensuring a focused and comprehensive review.