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

Table 1

The carbon isotopic compositions (‰, V-PDB) of the mineral separates in the Podong mafic-ultramafic intrusion, China.

Sample no.	Rock	Mineral	(°C)
PD73-2	Olivine	Olv	200-400	-24.5	-26.4
	Gabbro		400-700	-15.7	-31.8	-24.8	-23.2	-29.8
			700-1200	-11.3	-35.5	-23.7	-24.0	-30.9
PD73-3	Gabbro	Pyx	200-400	-10.5
			400-700	-15.2	-34.7
			700-1200	-6.3	-38.9
PD73-4	Gabbro	Pyx	200-400	-18		-21.1	-20.5
			400-700	-10.6	-20.3
			700-1200	-5.4	-27.9	-27.9	-38.4
PD73-5	Gabbro	Pl	200-400	-17.2	-29.8
			400-700	-11.2	-29.0
			700-1200	-6.7	-18.9	-26.8	-7.0
PD73-7	Gabbro	Pyx	200-400	-20.4	-42.6
			400-700	-10.4	-40.9
			700-1200	-9.2	-32.4	-24.6	-27.8	-22.5
PD93-3	Gabbro	Pyx	200-400	-8.5	-31.5
			400-700	-4.3	-22.6
			700-1200	-6.8	-22.3	-18.7
PD93-4	Olivine	Olv	200-400	-22.7	-18.4
	Gabbro		400-700	-7.1	-28.0	-21.4
			700-1200	-4.5	-27.1	-23.5
PD93-5	Olivine	Pyx	200-400	-22.9
	Gabbro		400-700	-20.3	-30.1	-29.7
			700-1200	-16.0	-30.3	-20.8	-29.8
PD93-7	Olivine	Pyx	200-400	-14.8
	Gabbro		400-700	-9.8	-35.8	-34	-28.7
			700-1200	-10.7	-31.2	-22.5	-25.7
PD93-8	Gabbro	Pyx	200-400	-17.9	-40.0
			400-700	-6.1	-36.4	-26.7	-27.9	-24.5
			700-1200	-6.0	-31.5	-24.6
PD93-9	Gabbro	Pyx	200-400	-8.4	-26.0	-19.6	-26.3
			400-700	-3.6	-28.3	-23.6	-30.0
			700-1200	-3.2	-27.2

Olv: olivine; Pyx: pyroxene; Pl: plagioclase.