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Letter to the Editor |
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| Authors: | Johan Maertens Jeff Scovil Bruce Geller John S White R Peter Richards |
| Affiliation: | 1. Branchburg, New Jersey;2. Phoenix, Arizona;3. Colorado School of Mines, Geology Museum 303/273-3823;4. Stewartstown, Pennsylvania;5. Oberlin, Ohio |
| Abstract: | |
| Keywords: | |