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6. A sample of phosphorite from the Rum Jungle in Australia has 143ND/144Nd 0.51241, 14Sm! %3D 144Nd 0.2378, and t 2.0 Ga. Assume that the %3D %3D Nd originated from average crust with 147Sm/ 144Nd = 0.1180 and calculate the present age of the crustal rocks from which the Nd in the Rum Jungle phosphorite was derived.

6. A sample of phosphorite from the Rum Jungle in Australia has 143ND/144Nd 0.51241, 14Sm! %3D 144Nd 0.2378, and t 2.0 Ga. Assume that the %3D %3D Nd originated from average crust with 147Sm/ 144Nd = 0.1180 and calculate the present age of the crustal rocks from which the Nd in the Rum Jungle phosphorite was derived.

Chemistry: Principles and Reactions
Chemistry: Principles and Reactions
8th Edition
ISBN:9781305079373
Author:William L. Masterton, Cecile N. Hurley
Publisher:William L. Masterton, Cecile N. Hurley
Chapter21: Chemistry Of The Nonmetals
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6. A sample of phosphorite from the Rum Jungle in Australia has 143ND/144Nd = 0.51241, 147Sm/ 144N. 0.2378, and t = 2.0 Ga. Assume that the Nd originated from average crust with 14 Sm/ 144Nd = 0.1180 and calculate the present age of the crustal rocks from which the Nd in the Rum Jungle phosphorite was derived. %3D
Transcribed Image Text:6. A sample of phosphorite from the Rum Jungle in Australia has 143ND/144Nd = 0.51241, 147Sm/ 144N. 0.2378, and t = 2.0 Ga. Assume that the Nd originated from average crust with 14 Sm/ 144Nd = 0.1180 and calculate the present age of the crustal rocks from which the Nd in the Rum Jungle phosphorite was derived. %3D
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