Esta innovadora serie ofrece resúmenes concisos y autorizados de numerosos sistemas novedosos de isótopos y elementos. Estos sistemas actúan como 'proxies' o 'trazadores geoquímicos' para reconstruir condiciones ambientales pasadas a lo largo de escalas de tiempo de miles a miles de millones de años. Cada contribución profundiza en los principios geoquímicos, los beneficios potenciales y las limitaciones de métodos específicos, junto con su estado actual y perspectivas futuras. Sirve como un recurso dinámico para investigadores y estudiantes que exploran la evolución 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.