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GSA Bulletin March 01, 1952, Vol.63, 225-240. doi:https://doi.org/10.1130/0016-7606(1952)63[225:OSG]2.0.CO;2
GSA Bulletin March 01, 1952, Vol.63, 241-254. doi:https://doi.org/10.1130/0016-7606(1952)63[241:PISNAI]2.0.CO;2
GSA Bulletin March 01, 1952, Vol.63, 255-274. doi:https://doi.org/10.1130/0016-7606(1952)63[255:PISOTC]2.0.CO;2
GSA Bulletin March 01, 1952, Vol.63, 275-322. doi:https://doi.org/10.1130/0016-7606(1952)63[275:UCSITC]2.0.CO;2
GSA Bulletin March 01, 1952, Vol.63, 323-324. doi:https://doi.org/10.1130/0016-7606(1952)63[323:POGD]2.0.CO;2
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