Gerson, Andrea R.
Rolley, Peter J.
Davis, Catherine
Feig, Sandrin T.
Doyle, Stephen
Smart, Roger St. C.
Article History
Received: 16 August 2018
Accepted: 13 February 2019
First Online: 13 March 2019
Competing Interests
: Andrea Gerson and Roger Smart received consultation fees for this work. Peter Rolley and Catherine Davis are employed by Hillgrove Resources Limited who provided the samples and funded the work. Sandrin Feig and Stephen Doyle declare no competing interests.