Origin and Evolution of the Ore-Forming Fluids in the Liyuan Gold Deposit, Central North China Craton: Constraints from Fluid Inclusions and H-O-C Isotopic Compositions

Table 2

The δ¹⁸, δ¹⁸, and δD data () of the Liyuan gold deposit.

Sample	Stage	δ^18	δ^18	δD	δ^13	(°C)	(p correction) (°C)
LY13-1-6	Early	12.1	9.5	−66	−7.1	356	120
LY13-2-1	Middle	10.1	4.3	−83	−8.9	262	70
LY13-2-11	Middle	12.7	7.1	−85	−7.6	271	70
15LYD-12	Late	13.2	2.2	−87		182	30

δ¹⁸, measured δ¹⁸O value of quartz; δ¹⁸ value of ore-forming fluids in equilibrium with quartz is calculated according to the equation of 1000 reported by Clayton et al. [34]. The temperatures used in calculation are the mean values of the homogenization temperatures from the same quartz samples plus pressure corrected temperatures; that is, (P correction); δ¹³ values refer to CO₂ released from fluid inclusions.