أدناكم عِلما
06-12-2013, 02:23 PM
منقول : https://www.facebook.com/photo.php?fbid=196265233862074&set=gm.168334840012120&type=1&theater
http://www.nature.com/news/earthquakes-make-gold-veins-in-an-instant-1.12615
http://www.scientificamerican.com/article.cfm?id=earthquakes-make-gold-veins-in-an-instant
http://www.nature.com/ngeo/journal/v6/n4/full/ngeo1759.html
http://www.australianminesatlas.gov.au/education/down_under/gold/formed.html
http://www.nature.com/news/earthquakes-make-gold-veins-in-an-instant-1.12615
http://www.scientificamerican.com/article.cfm?id=earthquakes-make-gold-veins-in-an-instant
http://www.nature.com/ngeo/journal/v6/n4/full/ngeo1759.html
http://www.australianminesatlas.gov.au/education/down_under/gold/formed.html