Molybdenum as a Paleoredox Proxy: Past, Present, and Future

Molybdenum (Mo) is a widely used trace metal for investigating redox conditions, but unanswered questions remain. This Element proposes a refinement of Mo geochemistry in aquatic systems, ancient rocks, and modern sediments through molecular geochemistry to better understand Mo behavior and address outstanding research gaps.

Format: Paperback / softback
Length: 75 pages
Publication date: 09 September 2021
Publisher: Cambridge University Press

Molybdenum (Mo) is a highly sought-after trace metal for studying redox conditions, yet there are still unresolved questions that cannot be fully addressed by concentration and bulk isotopic analysis alone. By integrating innovative geochemical techniques with traditional methods of Mo analysis, significant improvements can be made. In this Element, we propose a refinement of Mo geochemistry in aquatic systems, ancient rocks, and modern sediments through molecular geochemistry, a systematic approach that combines concentration, isotope ratio, elemental mapping, and speciation analyses.

Specifically, our aim is to enhance our understanding of Mo behavior in intermediate sulfide concentrations governing Mo behavior below the switch-point and dominant sequestration pathways in low oxygen conditions. This work seeks to accomplish two primary objectives:

1. Aid and improve the breadth of Mo paleoproxy interpretations by considering Mo speciation.
2. Address outstanding research gaps concerning Mo systematics, including cycling, partitioning, and sequestration.

The Mo paleoproxy holds immense potential for tackling complex research questions. By implementing molecular geochemical recommendations, we can achieve improved Mo paleoproxy interpretations and reconstructions, contributing to a deeper understanding of Earth's geological history and environmental processes.

Weight: 68g
Dimension: 151 x 228 x 6 (mm)
ISBN-13: 9781108995283