The formation of low-temperature sedimentary pyrite and its relationship with biologically-induced processes

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Author list: Cavalazzi B, Agangi A, Barbieri R, Franchi F, Gasparotto G

Publisher: Springer

Place: NEW YORK

Publication year: 2014

Journal: Geology of Ore Deposits (1075-7015)

Journal acronym: GEOL ORE DEPOSIT+

Volume number: 56

Issue number: 5

Start page: 395

End page: 408

Number of pages: 14

ISSN: 1075-7015

eISSN: 1555-6476

Languages: English-Great Britain (EN-GB)

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Abstract

This contribution is an updated review on sedimentary pyrite and on its role in well-consolidated research topics, such as the biogeochemical cycles and the studies on sediment-hosted ore deposit studies, as well as new frontiers of research, such as astrobiology. Textural and compositional information preserved in sedimentary pyrite from sediment-hosted ore deposits has contributed to elucidate their environment of forzmation. In particular, the content of redox-sensitive elements such as Ni, Co, Mo, and V has implications for defining the syn- and post-sedimentary conditions. In addition, the stable isotope compositions are useful indicators of the pathways of both biogenic and abiogenic pyrite formation. Despite the longstanding research on pyrite and the mechanism of its formation, there are still significant gaps in our knowledge. In this nonexhaustive review, we briefly touch on different current aspects of research on sedimentary pyrite, exemplifying how sedimentary pyrite remains relevant to geoscientists, and becomes more and more relevant in understanding some basic aspects of knowledge, such as the origin of life and the search for extraterrestrial life, as well as aspect of classical applied science, such as the implications for ore deposition.

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