Research Article

The Petrogenesis of the Permian Podong Ultramafic Intrusion in the Tarim Craton, Western China: Constraints from C-He-Ne-Ar Isotopes

Figure 6

Plot of 40Ar/36Ar versus 3He/4He ratios in the Podong intrusion, China (after [49]). ATM: atmosphere [29, 39]; Crust: continental crust; MORB: depleted mantle for MORB; MP: mantle plume [34, 35]. Data sources: the Poyi ultramafic intrusion, China (#1) [10].