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Table 4 Mean heat production values (A) with standard deviation and contributions of each element
From: Radiogenic heat production in granitoids from the Sierras de Córdoba, Argentina
Magmatic event | Mean concentrations | Heat production | (%)* | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
Event | Age (Gy) | Current U (ppm) | Initial U (ppm) | Current Th (ppm) | Initial Th (ppm) | Current K (%) | Initial K (%) | Current A (µW/m3) | Initial A (µW/m3) | |
Carboniferous | 0.34 | 6.83 | 7.21 | 28.88 | 29.37 | 3.98 | 3.98 | 4.09 | 4.22 | 3.12 |
Achalian | 0.38 | 5.32 | 5.66 | 23.59 | 24.04 | 4.07 | 4.07 | 3.35 | 3.47 | 3.36 |
Famatinian | 0.47 | 0.95 | 1.02 | 3.95 | 4.04 | 1.32 | 1.32 | 0.63 | 0.66 | 3.84 |
Pampean | 0.54 | 2.89 | 3.15 | 14.75 | 15.15 | 3.15 | 3.15 | 2.04 | 2.14 | 4.43 |