%0 Journal article
%A Shi, Guanzhong
%A Shen, Chuanbo
%A Wauschkuhn, Bastian
%A Härtel, Birk
%A Ratschbacher, Lothar
%A Xia, Bin
%A Ge, Xiang
%A Zeng, Xiaowei
%A Fu, Hongyang
%T A zircon classification scheme for sedimentary provenance analysis using radiation damage
%R 10.1002/gj.4751
%J Geological Journal
%V 58
%N 8
%I John Wiley & Sons%C Inc.
%X
Detrital single‐grain zircon U–Pb geochronology is a powerful tool for provenance studies if information on the source rocks is available. This paper proposes a new source‐rock classification tool that uses the degree of annealing of radiation damage in detrital zircon; the annealing is expressed by the relationship between the width (full‐width at half‐maximum; FWHM) of the v3[SiO4] Raman band at ~1008 cm−1 and the calculated α‐dose. The host rocks of the zircons are classified into three types according to their emplacement process and/or thermal history: volcanic and rapidly cooled plutonic and high‐grade metamorphic rocks (type 1); rocks with hydrothermal zircons (type 2); slowly cooled igneous and metamorphic rocks (type 3). We construct a naive Bayes prediction model by training it with a collection of zircons of known types. The unknown zircons are assigned a probability of derivation from a specific host‐rock type. This classification scheme is best used as an accessory tool in provenance studies that apply detrital zircon U–Pb geochronology.
%U http://resolver.sub.uni-goettingen.de/purl?gldocs-11858/11179
%~ FID GEO-LEO e-docs