Rock around the clock: zircon crystal is oldest piece of Earth by Reuters, The Telegraph, February 24, 2014. http://www.telegraph.co.uk/news/worldnews/australiaandthepacific/10657665/Rock-around-the-clock-zircon-crystal-is-oldest-piece-of-Earth.html
Gem discovered on Australian sheep farm is oldest piece of the planet, The Guardian, February 24, 2103. http://www.theguardian.com/science/2014/feb/24/gem-discovered-in-wa-is-oldest-piece-of-planet-earth At 4.4 Billion Years Old, Oz Crystals Confirmed As World's Oldest, NPR, Morning Edition, February 24, 2014 3:27 AM http://www.npr.org/2014/02/24/280888059/at-4-4-billion-years-old-oz-crystals-confirmed-as-worlds-oldest Rock of Ages: Microscopic 4.4 billion-year-old crystal is the oldest-known fragment of Earth. Mail Online http://www.dailymail.co.uk/sciencetech/article-2566588/Rock-Ages-Microscopic-4-4-billion-year-old-crystal-oldest-known-fragment-Earth.html Valley, J. W., A. J. Cavosie, T. Ushikubo, D. A. Reinhard, D. F. Lawrence, D. J. Larson, P. H. Clifton, T. F. Kelly, S. A. Wilde, D. E. Moser, and M. J. Spicuzza, 2014, Hadean age for a post-magma-ocean zircon confirmed by atom- probe tomography. Nature Geoscience. Published online 23 February 2014, doi:10.1038/ngeo2075 http://www.nature.com/ngeo/journal/vaop/ncurrent/full/ngeo2075.html Yours, Paul H. ______________________________________________ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list [email protected] http://six.pairlist.net/mailman/listinfo/meteorite-list
