Evidence of Precambrian Asteroid Impacts Found in Australia

Evidence of Precambrian Asteroid Impacts Found in Australia

Clues to ancient giant asteroid found in Australia
Australian National University, May 16, 2016
http://www.anu.edu.au/news/all-news/clues-to-ancient-giant-asteroid-found-in-western-australia

https://www.sciencedaily.com/releases/2016/05/160516095132.htm

http://www.astronomy.com/news/2016/05/clues-to-ancient-giant-asteroid-found-in-western-australia

Earth Hit by 15-Mile-Wide Earth Hit by 15-Mile-Wide
Asteroid 3.5 Billion Years Ago, Evidence Indicates, May 17, 2016
http://www.sci-news.com/geology/earth-hit-asteroid-3-5-billion-years-ago-03871.html

Glikson, A., A. Hickman, N. J. Evans, C. L. Kirkland, J.-W. Park, R. Rapp, and S. Romano., 2016, A new ∼3.46Ga asteroid impact ejecta unit at Marble Bar, Pilbara Craton, Western Australia: A petrological, microprobe and laser ablation ICPMS study. Precambrian Research; 279: 103 DOI: 10.1016/j.precamres.2016.04.003
https://www.researchgate.net/publication/301249834_A_new_346_Ga_asteroid_impact_ejecta_unit_at_Marble_Bar_Pilbara_Craton_Western_Australia_A_petrological_microprobe_and_laser_ablation_ICPMS_study

Yours,

Paul H.