Hi, Below is what Ed is talking about:
340 undiscovered meteorite impact sites on Earth, geologists calculate, Science News, June 30, 2015 http://www.sciencedaily.com/releases/2015/06/150630080204.htm S. Hergarten, T. Kenkmann. The number of impact craters on Earth: Any room for further discoveries? Earth and Planetary Science Letters. vol. 425, pp. 187-192. DOI: 10.1016/j.epsl.2015.06.009 http://www.sciencedirect.com/science/article/pii/S0012821X15003659 Most of Earth’s impact craters await discovery. Ninety or more cavities wider than 1 kilometer remain to be found by Thomas sumner, June 17, 2015 https://www.sciencenews.org/article/most-earth’s-impact-craters-await-discovery I will have read through and think about it, to figure out what I think of it. Yours, Paul H. ______________________________________________ Visit our Facebook page https://www.facebook.com/meteoritecentral and the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com https://pairlist3.pair.net/mailman/listinfo/meteorite-list