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Table 8.4 Rubidium-Strontium Mass Spectrometry Data A. Salisbury pluton, Rowan County, North Carolina (from Fullagar, P.D., 1971, Geol. Soc. Am. Bull., v. 82, 409-416). Sample 87 Sr/86Sr 87Rb/86Sr A-2 1.1970 86.7 C-2 0.7468 7.72 D-3 0.8341 22.8 F-3 0.9979 50.7 G-6 0.7111 1.26 I-1 0.7132 1.78 1-2 0.7239 3.90 B. Whitewater sediments (graywacke) surrounding the Sudbury lopolith, Sudbury, Ontario (from Fairbairn, H. W., 1968, Can. J. Earth Sci., 5, 707-714). Sample 87 Sr/86Sr 87Rb/86Sr 87Sr/86Sr R5945A 0.8749 7.47 R5946 0.7328 1.11 R5945 0.9379 9.11 A R5945B 0.8783 7.13 R5948B 0.8191 4.35 R5949A 0.8809 7.65 R5943A 0.7545 2.06 R5939A 0.7563 1.95 R5942B 0.8147 4.77 R5947A 0.8160 4.45 R5948A 0.8162 4.62 C R5946A 0.8408 5.63 R5949B 0.8505 6.40 B Initial isotope ratio 87Rb/86Sr C D Using the accompanying data above (Table 8.4), plot the two data set separately on a parent-daughter diagram as shown in Figure 8.6C of your lab manual. After plotting the data for the two data sets, determine the age of each set using appropriate radiometric age dating formula/e.

Table 8.4 Rubidium-Strontium Mass Spectrometry Data A. Salisbury pluton, Rowan County, North Carolina (from Fullagar, P.D., 1971, Geol. Soc. Am. Bull., v. 82, 409-416). Sample 87 Sr/86Sr 87Rb/86Sr A-2 1.1970 86.7 C-2 0.7468 7.72 D-3 0.8341 22.8 F-3 0.9979 50.7 G-6 0.7111 1.26 I-1 0.7132 1.78 1-2 0.7239 3.90 B. Whitewater sediments (graywacke) surrounding the Sudbury lopolith, Sudbury, Ontario (from Fairbairn, H. W., 1968, Can. J. Earth Sci., 5, 707-714). Sample 87 Sr/86Sr 87Rb/86Sr 87Sr/86Sr R5945A 0.8749 7.47 R5946 0.7328 1.11 R5945 0.9379 9.11 A R5945B 0.8783 7.13 R5948B 0.8191 4.35 R5949A 0.8809 7.65 R5943A 0.7545 2.06 R5939A 0.7563 1.95 R5942B 0.8147 4.77 R5947A 0.8160 4.45 R5948A 0.8162 4.62 C R5946A 0.8408 5.63 R5949B 0.8505 6.40 B Initial isotope ratio 87Rb/86Sr C D Using the accompanying data above (Table 8.4), plot the two data set separately on a parent-daughter diagram as shown in Figure 8.6C of your lab manual. After plotting the data for the two data sets, determine the age of each set using appropriate radiometric age dating formula/e.

Applications and Investigations in Earth Science (9th Edition)
Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
Section: Chapter Questions
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Table 8.4 Rubidium-Strontium Mass Spectrometry Data A. Salisbury pluton, Rowan County, North Carolina (from Fullagar, P.D., 1971, Geol. Soc. Am. Bull., v. 82, 409-416). Sample 87 Sr/86Sr 87Rb/86Sr A-2 1.1970 86.7 C-2 0.7468 7.72 D-3 0.8341 22.8 F-3 0.9979 50.7 G-6 0.7111 1.26 I-1 0.7132 1.78 1-2 0.7239 3.90 B. Whitewater sediments (graywacke) surrounding the Sudbury lopolith, Sudbury, Ontario (from Fairbairn, H. W., 1968, Can. J. Earth Sci., 5, 707-714). Sample 87 Sr/86Sr 87Rb/86Sr 87Sr/86Sr R5945A 0.8749 7.47 R5946 0.7328 1.11 R5945 0.9379 9.11 A R5945B 0.8783 7.13 R5948B 0.8191 4.35 R5949A 0.8809 7.65 R5943A 0.7545 2.06 R5939A 0.7563 1.95 R5942B 0.8147 4.77 R5947A 0.8160 4.45 R5948A 0.8162 4.62 C R5946A 0.8408 5.63 R5949B 0.8505 6.40 B Initial isotope ratio 87Rb/86Sr C D Using the accompanying data above (Table 8.4), plot the two data set separately on a parent-daughter diagram as shown in Figure 8.6C of your lab manual. After plotting the data for the two data sets, determine the age of each set using appropriate radiometric age dating formula/e.
Transcribed Image Text:Table 8.4 Rubidium-Strontium Mass Spectrometry Data A. Salisbury pluton, Rowan County, North Carolina (from Fullagar, P.D., 1971, Geol. Soc. Am. Bull., v. 82, 409-416). Sample 87 Sr/86Sr 87Rb/86Sr A-2 1.1970 86.7 C-2 0.7468 7.72 D-3 0.8341 22.8 F-3 0.9979 50.7 G-6 0.7111 1.26 I-1 0.7132 1.78 1-2 0.7239 3.90 B. Whitewater sediments (graywacke) surrounding the Sudbury lopolith, Sudbury, Ontario (from Fairbairn, H. W., 1968, Can. J. Earth Sci., 5, 707-714). Sample 87 Sr/86Sr 87Rb/86Sr 87Sr/86Sr R5945A 0.8749 7.47 R5946 0.7328 1.11 R5945 0.9379 9.11 A R5945B 0.8783 7.13 R5948B 0.8191 4.35 R5949A 0.8809 7.65 R5943A 0.7545 2.06 R5939A 0.7563 1.95 R5942B 0.8147 4.77 R5947A 0.8160 4.45 R5948A 0.8162 4.62 C R5946A 0.8408 5.63 R5949B 0.8505 6.40 B Initial isotope ratio 87Rb/86Sr C D Using the accompanying data above (Table 8.4), plot the two data set separately on a parent-daughter diagram as shown in Figure 8.6C of your lab manual. After plotting the data for the two data sets, determine the age of each set using appropriate radiometric age dating formula/e.
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