How the Earth Was Made

How the Earth Was Made

America's Gold (2x13)

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Ημερομηνία προβολής: Μαρ 02, 2010

In the deserts of Nevada, research analysts will examine sedimentary rocks, which have built up over many years, to reveal how extracting several layers of rocks can lead to the discovery of gold residing deep below the surface.

  • Πρώτη προβολή: Φεβ 2009
  • Επεισόδια: 26
  • Ακόλουθοι: 19
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  • Τρίτη στο 21