npj Heritage Science· 2026Q1
Matters arising regarding experimental release of elements from rock varnish by Black et al
- 1citations
- Q1SCImago
- 2026year
Short summary
A critique of Black et al.'s experimental rock varnish weathering study argues that its conclusions are speculative due to problematic statements regarding experimental materials, field vs. lab conditions, pH changes, and the microbiome's role.
AI-generated from the title and abstract; the full text is not read.
Key points
- Black et al.'s experimental rock varnish weathering study is deemed important but its conclusions are questioned.
- The critique identifies problematic statements in the discussion section of the original paper.
- Specific issues raised include material equivalences, field vs. lab differences, pH changes, and microbiome influence.
- The authors conclude that the original study's findings must be considered speculative.
AI-generated from the title and abstract; the full text is not read.
Abstract
The recent paper by Black et al. (npj HeritageScience 14, 90 (2026)) describes experimental weathering studies that are important to fundamental heritage science. The experimental method and results appear sound. However, the discussion relies on problematic statements and equivalences related to the experimental material, differences between field and laboratory conditions, evidence for long-term changes in field rock surface pH, and the role of the microbiome. Because of these issues, the conclusions of Black et al. must be considered speculative.
The authors' abstract, as published at the source. npj Heritage Science, 2026 · DOI ↗
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