Oxytropidoceras Posted January 17, 2019 Share Posted January 17, 2019 Geology: Tiny zircon crystals help trace the birth of the mighty Mississippi By Dale Gnidovec, The Columbus Dispatch, Nov 11, 2018 https://www.dispatch.com/news/20181111/geology-tiny-zircon-crystals-help-trace-birth-of-mighty-mississippi Potter-McIntyre, S.L., Breeden, J.R. and Malone, D.H., 2018. A Maastrichtian birth of the Ancestral Mississippi River system: Evidence from the U-Pb detrital zircon geochronology of the McNairy Sandstone, Illinois, USA. Cretaceous Research. Volume 91, November 2018, Pages 71-79 https://www.sciencedirect.com/science/article/pii/S0195667117305414 Yours, Paul H. 4 Link to comment Share on other sites More sharing options...
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