Table 1.

The diagenesis and mineralization ages of Pb–Zn polymetallic deposits in the NMB.

No.	Deposit	Type	Mineralization	Samples	Analytical method	Age (Ma)	Reference
1	Yaguila	Skarn Pb–Zn–Ag	Galena, sphalerite, silver, pyrrhotite, pyrite	Quartz porphyry Molybdenite Garnet	LA-ICP-MS zircon U–Pb Re–Os LA-ICP-MS garnet U–Pb	65.6 ± 1.2 65.0 ± 1.9 65.0 ± 4.7–68.5 ± 3.4	[26] [27] [28]
2	Dongzhongsongduo	Skarn Pb–Zn	Galena, sphalerite, silver, magnetite, pyrrhotite, chalcopyrite, pyrite	Granite porphyry	LA-ICP-MS zircon U–Pb	54.4	[29]
3	Dongzhongla	Skarn Pb–Zn–Ag–Cu	Galena, sphalerite, chalcopyrite, pyrrhotite, pyrite, bornite, chalcocite	Granite porphyry	LA-ICP-MS zircon U–Pb	51.2	[29]
4	Mengya'a	Skarn Pb–Zn–Ag	Galena, sphalerite, pyrrhotite, chalcopyrite, pyrite	Muscovite	Ar–Ar	54.8 ± 0.4	[22]
5	Longmala	Skarn Pb–Zn–Fe–Cu	Galena, sphalerite, magnetite, chalcopyrite, pyrrhotite, pyrite	Biotite monzogranite Molybdenite	LA-ICP-MS zircon U–Pb Re–Os	54.6 ± 0.6 53.3	[30] [31]
6	Maxionglang	Skarn Pb–Zn	Galena, sphalerite, pyrite, and minor chalcopyrite, pyrrhotite	Sericite	Ar–Ar	69.3 ± 1.6	[29]
7	Leqingla	Skarn Pb–Zn–Fe–Cu	Galena, sphalerite, magnetite, chalcopyrite, molybdenite, pyrrhotite	Biotite granite Molybdenite	LA-ICP-MS zircon U–Pb Re–Os	60.8 ± 0.4 59.4 ± 4.5	[32] [33]
8	Xingaguo	Skarn Pb–Zn	Sphalerite, galena, magnetite, pyrite, marcasite, chalcopyrite, pyrrhotite	Biotite granite	LA-ICP-MS zircon U–Pb	56.5 ± 1.3	[32]
9	Dexin	Hydrothermal Pb–Zn	Galena, sphalerite, chalcopyrite, pyrite	Quartz porphyry	LA-ICP-MS zircon U–Pb	56.6 ± 0.8	[34]
10	Narusongduo	Cryptoexplosive breccia-skarn Pb–Zn polymetallic	Sphalerite, galena, pyrite, chalcopyrite, arsenopyrite, rhodochrosite	Granite porphyry Sericite	LA-ICP-MS zircon U–Pb Ar–Ar	58.6 ± 0.5 57.8 ± 0.7	This paper [35]
11	Sinongduo	cryptoexplosive breccia-hydrothermal vein Ag–Pb–Zn	Galena, sphalerite, smithsonite, chalcopyrite, pyrrhotite, silver	Tuff Illite	LA-ICP-MS zircon U–Pb Ar–Ar	61.9 ± 0.4 60.9 ± 0.7–63.1 ± 0.7	[9] [36]
12	Chagele	Skarn Pb–Zn	Sphalerite, galena, pyrite, marcasite, chalcopyrite and pyrrhotite	Granite porphyry	LA-ICP-MS zircon U–Pb	63.3 ± 0.9	[37]
13	Longgen	Skarn Pb–Zn	Sphalerite, galena, chalcopyrite, pyrite, magnetite, pyrrhotite, bornite, molybdenite and arsenopyrite	Granite porphyry Sphalerite	LA-ICP-MS zircon U–Pb Rb–Sr	61.2 ± 0.8 59.1 ± 3.0	[12]
14	Nuocang	Skarn Pb–Zn	Galena, sphalerite, and minor magnetite, pyrite, chalcopyrite, and malachite	Muscovite	Ar–Ar	59.68 ± 0.6	[38]