Author name: Gerald Raab

Quartz is a key archive of Earth surface processes, recording erosion, burial, transport, and landscape evolution across a wide range of timescales. Recent advances in quartz-based analytical techniques have expanded the potential for integrative geochemical and geochronological approaches. Fourier-transform infrared spectroscopy (FTIR) enables detailed characterization of quartz provenance and geological history, while terrestrial cosmogenic nuclides (TCNs) constrain surface exposure, burial histories, and denudation rates. Optically stimulated luminescence (OSL) provides robust age control for fine-grained sediment transport and deposition, and ongoing developments in electron spin resonance (ESR) extend chronological constraints into previously inaccessible time ranges. Understanding the principles and limitations of each method is essential for their effective individual and combined applications in reconstructing Earth surface processes.

Despite their simple chemical composition, silica (silicon dioxide, SiO₂) minerals comprise a complex system with diverse polymorphs of distinct crystal structures and different stabilities and properties. Quartz is arguably the most important mineral throughout human history, from early survival tools to critical materials for modern advanced technology. In addition, quartz and other silica polymorphs and varieties are excellent archivers and important tools for deciphering geological, environmental, and planetary processes and histories.