Questa innovativa serie offre panoramiche autorevoli ma concise di numerosi nuovi sistemi isotopici ed elementari. Questi sistemi agiscono come 'proxy' o 'traccianti geochimici' per ricostruire le condizioni ambientali passate su scale temporali da migliaia a miliardi di anni. Ogni contributo approfondisce i principi geochimici, i potenziali benefici e i limiti di metodi specifici, insieme al loro stato attuale e alle prospettive future. Serve come risorsa dinamica per ricercatori e studenti che esplorano l'evoluzione del sistema terrestre.
Tracking initial ocean (de)oxygenation is critical to better constrain the coevolution of life and environment. Development of thallium isotopes has provided evidence to track the global manganese oxide burial which responds to early (de)oxygenation for short-term climate events. This Element provides an introduction to the application of thallium isotopes, case studies, and future directions.
This Element focuses on the history of discovery of triple isotope effects, the conceptual framework behind these effects, and major lines of development in the past few years of triple oxygen isotope research.
Uranium isotopes have emerged as a proxy to reconstruct the redox conditions of the Earth's oceans and atmosphere. This Element covers the background, methods, and case studies of this promising tool for understanding Earth's environmental transitions, as rapid development continues to refine the accuracy of interpretations of 238U/235U records.