Diágenesis
Abstract
The discovery of a series of unusual geological objects is reported from urban excavations in Vienna (Quadrant 14A). The specimens, labeled VIE-SUB/Geo.1–5, exhibit laminated morphologies with a calcium carbonate-dominated composition, formed in an acidic, CaCO₃-rich environment.
Petrographic analysis reveals micritic layers, aragonite, and calcite geodes, alongside evidence of secondary silicification. Stratigraphic context and morphology suggest extreme geochemical processes not yet observed in current natural settings, leading to their provisional classification as “anticipatory fossils” within a projected geological horizon. No biogenic markers were identified, but isotopic analyses are planned to reconstruct the paleoenvironment. This finding raises questions about the future evolution of urban mineral deposits and prompts reflection on prospective geology as an emerging field of study.
In a constant dialogical act between the artist and the materials that make up the place in which the piece is situated, chemical weathering processes are addressed not only as deteriorative but also as a simultaneously constructive force.
Potential material states are explored, conceiving color as a sign of a cause-and-effect process that allows the interpretation of the transformations that the piece embodies in real time.
