The use of the trace element content of sedimentary pyrite as a proxy for the trace element composition of past oceans has recently emerged. The pyrite proxy has several potential advantages over bulk sample analysis: preservation through metamorphism; little dilution during analysis (samples are ablated not dissolved, allowing for the less abundant elements commonly held in the sulfide fraction to be investigated as proxies); accurate measurement of several elements simultaneously; the ability to screen sediments for hydrothermal overprint; and the technique can give information regarding trace element availably at multiple stages of diagenesis. Because of these multiple strengths, the pyrite trace element proxy is a valuable potential addition to the paleo-ocean chemistry tool kit. INDICE: 1. Introduction; 2. Systematics of the pyrite trace element proxy; 3. Materials and methods; 4. Case study; 5. Future prospects; 6. Key references.
- ISBN: 978-1-108-81052-4
- Editorial: Cambridge University Press
- Encuadernacion: Rústica
- Páginas: 75
- Fecha Publicación: 24/12/2020
- Nº Volúmenes: 1
- Idioma: Inglés