GeoQuEST Research Centre;
School of Earth and Environmental Sciences;
University of Wollongong;
Wollongong;
NSW 2522;
Australia;
Research School of Earth Sciences;
Australian National University;
Canberra;
ACT 0200;
Australia;
Glendale;
Tiddington;
Oxon;
OX9 2LQ;
UK;
Banded; iron; formation; Eoarchean; Early; atmosphere; Greenalite; Magnetite;