- Received 31 October 2016.
- Revision received 29 January 2017.
- Accepted 31 January 2017.
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© Geological Society of America
- 1School of Geosciences, University of Louisiana at Lafayette, Lafayette, Louisiana 70504, USA
- 2Centre for Earth Evolution and Dynamics, University of Oslo, N-0315 Oslo, Norway
- 3North-East Science Station, Far East Branch of Russian Academy of Sciences, Cherskiy, Russia
- 4Department of Geology and Geophysics and Museum of Natural Science, Louisiana State University, Baton Rouge, Louisiana 70803, USA