滇西北香格里拉翁水地区水系沉积物地球化学特征及找矿预测

doi:10.19657/j.geoscience.1000-8527.2020.58

摘要/Abstract

摘要：

翁水地区位于滇西北义敦岛弧南段,属于香格里拉弧斑岩型Cu-Mo-W成矿带,区内已发现大型休瓦促Mo-W矿床及多处金属矿床(点),具寻找Mo、 W、 Pb和Zn等多金属矿前景。1∶50 000水系沉积物地球化学测量成果显示,翁水地区Cu、 W、 Pb、 Zn、 Sn、 As、 Sb、 Bi、 Co和Ni等元素丰度显著高于西南三江成矿带水系沉积物背景值;元素异常明显受控于构造和岩性,Au元素主要富集在喇嘛亚组三段(T₃lm ³);W、Mo和Bi元素主要富集在二长花岗岩;Pb, Zn元素主要富集在图姆沟组二段(T₃t ²)。综合研究区元素异常特征、成矿地质条件及异常查证结果,圈定29处地球化学综合异常,优选2处找矿预测区,即休瓦促Mo-W A级找矿预测区和磨莫亚Pb-Zn-Ag B级找矿预测区,为进一步找矿工作提供了勘查方向和重要参考。

关键词: 水系沉积物, 地球化学, 找矿预测, 翁水, 义敦岛弧

Abstract:

The Wengshui area is located in the southern Yidun Arc (NW Yunnan) and belongs to the Shangri-La arc-type porphyry Cu-Mo-W metallogenic belt. This area has good prospecting potential for polymetallic deposits such as Mo, W, Pb and Zn, where the large Xiuwacu Mo-W deposit and many other ore deposits/occurrences have been discovered. The 1∶50,000 stream sediment survey shows that the contents of Cu, W, Pb, Zn, Sn, As, Sb, Bi, Co and Ni at Wengshui are significantly higher than those in the average Sanjiang metallogenic belt, SW China. The element anomalies are clearly controlled by structure and lithology. Gold is mainly enriched in T₃lm ³; W, Mo and Bi are enriched in monzonitic granite pluton; and Pb, Zn are enriched in T₃t ². According to the spatial distributions of element anomalies and metallogenic conditions, we have delineated 29 integrated geochemical anomalies, and two prospecting targets including the Xiuwacu Mo-W Grade-A target and the Momoya Pb-Zn-Ag Grade-B target. This provides direction and important reference for further prospecting work.

Key words: stream sediment, geochemistry, target prospecting, Wengshui, Yidun Arc

中图分类号:

黄永高, 熊昌利, 罗改, 张彤, 贾小川, 杨学俊, 叶春林, 王燚. 滇西北香格里拉翁水地区水系沉积物地球化学特征及找矿预测[J]. 现代地质, 2020, 34(05): 897-907.

HUANG Yonggao, XIONG Changli, LUO Gai, ZHANG Tong, JIA Xiaochuan, YANG Xuejun, YE Chunlin, WANG Yi. Geochemical Characteristics of Stream Sediments and Prospecting Implications in Shangri-La Wengshui Area, NW Yunnan[J]. Geoscience, 2020, 34(05): 897-907.

图/表 12

参考文献 27

[1]	侯增谦, 杨岳清, 王海平, 等. 三江义敦岛弧碰撞造山过程与成矿系统[M]. 北京: 地质出版社, 2003: 1-345.
[2]	李文昌, 余海军, 尹光候. 西南“三江”格咱岛弧斑岩成矿系统[J]. 岩石学报, 2013,29(4):1129-1144.
[3]	DENG J, WANG Q F, LI G J. Tectonic evolution, superimposed orogeny, and compositemetallogenic system in China[J]. Gondwana Research, 2017,50:216-266. DOI URL
[4]	LI W C, YU H J, GAO X, et al. Review of Mesozoic multiplemagmatism and porphyry Cu-Mo (W) mineralization in the Yidun Arc, eastern Tibet Plateau[J]. Ore Geology Reviews, 2017,90:795-812. DOI URL
[5]	李文昌, 尹光候, 刘学龙, 等. 中甸矿集区普朗-红山铜多金属成矿亚带北段帕纳牛场斑岩体 ⁴⁰Ar- ³⁹Ar年龄及锑矿化 [J]. 地质与勘探, 2010,46(2):267-271.
[6]	陈玲, 许继峰, 陈建林, 等. 云南中甸地区翁水晚三叠世火山岩地球化学特征及其构造意义[J]. 岩石学报, 2013,29(4):1156-1166.
[7]	WANG X S, HU R Z, BI X W, et al. Petrogenesis of Late Cretaceous I-type granites in the southern Yidun Terrane: New constraints on the Late Mesozoic tectonic evolution of the eastern Tibetan Plateau[J]. Lithos, 2014,208:202-219. DOI URL
[8]	LAI A Q, LI Z, LIU X L, et al. Petrogenesis and tectonic significance of the Xiuwacu two-period magmatism in Geza Arc of Yunnan Province: Constraints from lithogeochemistry, zircon U-Pb geochronology and Hf isotopic compositions[J]. Acta Geologica Sinica, 2016,90(2):757-758.
[9]	余海军, 李文昌. 滇西北休瓦促Mo-W矿区印支晚期和燕山晚期岩浆活动与成矿作用:来自锆石U-Pb年代学和地球化学的证据[J]. 岩石学报, 2016,32(8):2265-2280.
[10]	刘学龙, 李文昌, 杨富成, 等. 云南格咱岛弧带休瓦促Mo-W-Cu矿床两期岩浆作用的锆石U-Pb年龄、Hf同位素组成及构造意义[J]. 地质学报, 2017,91(4):849-863.
[11]	张向飞, 李文昌, 尹光候, 等. 滇西北休瓦促钨钼矿区复式岩体地质及其成矿特征——来自年代学、氧逸度和地球化学的约束[J]. 岩石学报, 2017,33(7):2018-2036.
[12]	GAO X, YANG L Q, ZHANG R G, et al. Nature and origin of Mesozoic granitoids and associated mineralization in the Sanjiang Tethys Orogeny, SW China: the Xiuwacu complex example[J]. International Geology Review, 2019,61(7):795-820. DOI URL
[13]	HUANG Y G, XIONG C L, JIA X C, et al. Zircon U-Pb ages of the two-periods magmatism from the Xiuwacu Mo-W-Cu deposit, northwest Yunnan, China[J]. China Geology, 2019,3(3):391-392.
[14]	WANG X S, BI X W, CHEN Y W, et al. Crystal fractionation of contaminated melts and re-melting of newly underplated basaltic crust generated Late Triassic andesitic and dioritic intrusions in the southern Yidun Terrane, SW China[J]. Lithos, 2019,342:135-151.
[15]	YAN TT, ZHANG X F, WANG D, et al. Geochronology, mineralogy, and geochemistry of the Late Triassic Xiuwacu biotite granite in the southern Yidun Terrane, southwest China: Insights into the petrogenesis and magmatic fertility[J]. Geological Journal, 2020,55(1):806-820. DOI URL
[16]	刘学龙, 李文昌, 尹光候. 云南格咱岛弧岩浆成矿带铅同位素特征及成矿物质来源示踪[J]. 现代地质, 2012,26(3):445-452.
[17]	王新松, 毕献武, 胡瑞忠, 等. 滇西北中甸地区休瓦促岩浆热液型Mo-W矿床S、Pb同位素对成矿物质来源的约束[J]. 岩石学报, 2015,31(11):3171-3188.
[18]	WANG X S, BI X W, LENG C B, et al. Geochronology and geochemistry of Late Cretaceous igneous intrusions and Mo-Cu-(W) mineralization in the southern Yidun Arc, SW China: Implications for metallogenesis and geodynamic setting[J]. Ore Geology Reviews, 2014,61:73-95. DOI URL
[19]	PAN L C, HU R Z, WANG X S, et al. Apatite trace element and halogen compositions as petrogenetic-metallogenic indicators: Examples from four granite plutons in the Sanjiang region, SW China[J]. Lithos, 2016,254:118-130.
[20]	LI W C, YU H J, GAO X, et al. Review of Mesozoic multiplemagmatism and porphyry Cu-Mo (W) mineralization in the Yidun Arc, eastern Tibet Plateau[J]. Ore Geology Reviews, 2017,90:795-812. DOI URL
[21]	YANG L Q, GAO X, SHU Q H. Multiple Mesozoic porphyry-skarn Cu (Mo-W) systems in Yidun Terrane, east Tethys: Constraints from zircon U-Pb and molybdenite Re-Os geochronology[J]. Ore Geology Reviews, 2017,90:813-826. DOI URL
[22]	PAN L C, HU R Z, BI X W, et al. Titanite major and trace element compositions as petrogenetic and metallogenic indicators of Mo ore deposits: Examples from four granite plutons in the southern Yidun arc, SW China[J]. American Mineralogist, 2018,103(9):1417-1434. DOI URL
[23]	YANG F C, LI W C, JIANG X J, et al. Late Cretaceous granitic intrusions and associated deposits in the Yidun Arc of the eastern Tibetan Plateau [J]. Journal of Asian Earth Sciences, 2020,[ 2020-01-21]. http://doi.org/10.1016/j.jseaes.2020.104249. DOI URL PMID
[24]	史长义, 梁萌, 冯斌. 中国水系沉积物39种元素系列背景值[J]. 地球科学, 2016,41(2):234-251.
[25]	黎彤, 袁怀雨. 大洋岩石圈和大陆岩石圈的元素丰度[J]. 地球化学, 2011,40(1):1-5.
[26]	戴慧敏, 代雅键, 马振东, 等. 大兴安岭查巴奇地区水系沉积物地球化学特征及找矿方向[J]. 现代地质, 2012,26(5):1043-1050.
[27]	柳坤峰, 冯昌荣, 翟黎明, 等. 新疆乌恰县吾合沙鲁地区水系沉积物地球化学特征与找矿远景[J]. 现代地质, 2019,33(4):759-771.

参数		Au	Ag	Sn	As	Sb	Bi	Hg	W	Mo	Cu	Pb	Zn	Co	Ni	Cd
原始数据	Max₀	485.00	19.60	24.10	671.00	167.00	68.30	1.91	518.00	8 500.00	966.00	15 720.00	3 144.00	70.87	545.00	15.20
	Min₀	0.40	0.04	1.40	0.54	0.10	0.05	0.01	0.30	0.20	1.61	4.41	6.72	1.00	3.00	0.05
	X₀	1.85	0.14	3.72	30.09	1.76	0.79	0.04	4.60	7.30	36.12	53.45	104.55	16.76	38.61	0.24
	S₀	12.56	0.49	1.41	47.78	4.53	2.49	0.05	17.31	197.63	46.18	379.94	95.92	6.82	34.33	0.46
	Cv₀	6.79	3.50	0.38	1.59	2.57	3.15	1.25	3.76	27.07	1.28	7.11	0.92	0.41	0.89	1.92
剔除离群数据	Max	2.55	0.15	5.70	47.05	2.90	0.96	0.08	4.37	1.63	65.63	58.50	190.90	32.81	80.19	0.47
	Min	0.40	0.04	1.40	0.54	0.10	0.05	0.01	0.30	0.20	1.61	4.41	6.72	1.00	3.00	0.05
	X	1.15	0.09	3.51	18.12	1.10	0.47	0.03	2.30	0.78	28.54	30.77	96.06	16.33	35.11	0.18
	S	0.47	0.02	0.76	9.65	0.61	0.17	0.02	0.69	0.29	12.37	9.40	32.22	5.66	15.19	0.10
	Cv	0.41	0.22	0.22	0.53	0.55	0.36	0.67	0.30	0.37	0.43	0.31	0.34	0.35	0.43	0.56
	K	0.88	1.13	1.21	1.51	1.38	1.57	1.00	1.35	1.11	1.23	1.32	1.34	1.26	1.30	1.20
	D	0.34	1.29	2.06	8.24	2.20	130.56	0.33	2.09	0.65	0.53	2.37	1.13	0.82	0.49	1.29
西南三江成矿带水系沉积物背景值		1.27	1.30	0.08	2.90	12.00	0.80	0.30	0.03	1.70	0.70	23	23	72	13.00	27.00
大陆岩石圈丰度		3.40	3.40	0.07	1.70	2.20	0.50	0	0.09	1.10	1.20	54	13	85	20	71

参数		Au	Ag	Sn	As	Sb	Bi	Hg	W	Mo	Cu	Pb	Zn	Co	Ni	Cd
原始数据	Max₀	485.00	19.60	24.10	671.00	167.00	68.30	1.91	518.00	8 500.00	966.00	15 720.00	3 144.00	70.87	545.00	15.20
	Min₀	0.40	0.04	1.40	0.54	0.10	0.05	0.01	0.30	0.20	1.61	4.41	6.72	1.00	3.00	0.05
	X₀	1.85	0.14	3.72	30.09	1.76	0.79	0.04	4.60	7.30	36.12	53.45	104.55	16.76	38.61	0.24
	S₀	12.56	0.49	1.41	47.78	4.53	2.49	0.05	17.31	197.63	46.18	379.94	95.92	6.82	34.33	0.46
	Cv₀	6.79	3.50	0.38	1.59	2.57	3.15	1.25	3.76	27.07	1.28	7.11	0.92	0.41	0.89	1.92
剔除离群数据	Max	2.55	0.15	5.70	47.05	2.90	0.96	0.08	4.37	1.63	65.63	58.50	190.90	32.81	80.19	0.47
	Min	0.40	0.04	1.40	0.54	0.10	0.05	0.01	0.30	0.20	1.61	4.41	6.72	1.00	3.00	0.05
	X	1.15	0.09	3.51	18.12	1.10	0.47	0.03	2.30	0.78	28.54	30.77	96.06	16.33	35.11	0.18
	S	0.47	0.02	0.76	9.65	0.61	0.17	0.02	0.69	0.29	12.37	9.40	32.22	5.66	15.19	0.10
	Cv	0.41	0.22	0.22	0.53	0.55	0.36	0.67	0.30	0.37	0.43	0.31	0.34	0.35	0.43	0.56
	K	0.88	1.13	1.21	1.51	1.38	1.57	1.00	1.35	1.11	1.23	1.32	1.34	1.26	1.30	1.20
	D	0.34	1.29	2.06	8.24	2.20	130.56	0.33	2.09	0.65	0.53	2.37	1.13	0.82	0.49	1.29
西南三江成矿带水系沉积物背景值		1.27	1.30	0.08	2.90	12.00	0.80	0.30	0.03	1.70	0.70	23	23	72	13.00	27.00
大陆岩石圈丰度		3.40	3.40	0.07	1.70	2.20	0.50	0	0.09	1.10	1.20	54	13	85	20	71

地质单元	参数	Au	Ag	Sn	As	Sb	Bi	Hg	W	Mo	Cu	Pb	Zn	Co	Ni	Cd
T₃ha	T	3.30	0.17	4.85	37.30	3.68	0.76	0.09	3.06	1.67	60.48	43.71	146.99	28.09	73.65	0.53
	X	1.54	0.10	3.30	18.82	1.32	0.44	0.04	1.86	0.88	32.44	25.32	101.84	16.79	54.53	0.27
	q	1.34	1.11	0.94	1.04	1.20	0.94	1.33	0.81	1.13	1.14	0.82	1.06	1.03	1.55	1.50
T₃lm³	T	6.00	0.19	9.67	314.39	8.34	6.06	0.11	20.55	7.04	305.55	51.86	141.18	26.53	60.10	0.51
	X	7.35	0.23	5.91	86.90	3.04	2.63	0.04	11.90	5.17	96.56	58.08	115.62	20.08	38.94	0.36
	q	6.39	2.56	1.68	4.80	2.76	5.60	1.33	5.17	6.63	3.38	1.89	1.20	1.23	1.11	2.00
T₃lm²	T	2.06	0.19	5.95	57.90	2.55	0.79	0.10	3.65	1.23	45.56	57.54	152.51	24.77	53.65	0.48
	X	0.46	0.06	2.40	4.04	0.36	0.13	0.01	1.52	0.23	6.16	14.40	19.50	6.66	4.96	0.05
	q	0.40	0.67	0.68	0.22	0.33	0.28	0.33	0.66	0.29	0.22	0.47	0.20	0.41	0.14	0.28
T₃lm¹	T	1.88	0.12	5.24	42.82	2.62	0.77	0.06	3.08	1.12	49.27	50.21	136.12	25.49	55.60	0.39
	X	1.18	0.11	3.80	20.76	1.17	0.52	0.03	2.74	4.31	30.95	38.54	97.07	17.12	35.80	0.20
	q	1.03	1.22	1.08	1.15	1.06	1.11	1.00	1.19	5.53	1.08	1.25	1.01	1.05	1.02	1.11
T₃t²	T	2.20	0.26	4.60	92.22	4.63	0.74	0.08	4.26	1.72	56.00	52.81	164.87	27.19	60.04	0.49
	X	1.75	0.18	3.45	36.19	2.40	0.60	0.03	2.95	1.10	31.94	93.29	118.16	17.49	32.46	0.25
	q	1.52	2.00	0.98	2.00	2.18	1.28	1.00	1.28	1.41	1.12	3.03	1.23	1.07	0.92	1.39
T₃t¹	T	2.57	0.22	4.26	44.84	2.49	0.68	0.06	3.09	1.21	38.70	40.44	156.63	22.73	63.98	0.31
	X	1.51	0.11	3.24	20.08	1.29	0.49	0.04	2.17	0.86	27.85	31.34	106.67	17.20	41.49	0.19
	q	1.31	1.22	0.92	1.11	1.17	1.04	1.33	0.94	1.10	0.98	1.02	1.11	1.05	1.18	1.06
ηγ	T	3.44	0.37	8.24	150.99	5.65	13.40	0.06	106.90	104.10	144.91	49.12	139.70	16.49	33.83	0.50
	X	0.74	0.11	3.40	19.28	1.11	3.13	0.02	28.80	12.43	36.10	25.50	26.57	3.22	6.03	0.10
	q	0.64	1.22	0.97	1.06	1.00	6.65	0.50	12.52	15.94	1.26	0.83	0.28	0.20	0.17	0.56

地质单元	参数	Au	Ag	Sn	As	Sb	Bi	Hg	W	Mo	Cu	Pb	Zn	Co	Ni	Cd
T₃ha	T	3.30	0.17	4.85	37.30	3.68	0.76	0.09	3.06	1.67	60.48	43.71	146.99	28.09	73.65	0.53
	X	1.54	0.10	3.30	18.82	1.32	0.44	0.04	1.86	0.88	32.44	25.32	101.84	16.79	54.53	0.27
	q	1.34	1.11	0.94	1.04	1.20	0.94	1.33	0.81	1.13	1.14	0.82	1.06	1.03	1.55	1.50
T₃lm³	T	6.00	0.19	9.67	314.39	8.34	6.06	0.11	20.55	7.04	305.55	51.86	141.18	26.53	60.10	0.51
	X	7.35	0.23	5.91	86.90	3.04	2.63	0.04	11.90	5.17	96.56	58.08	115.62	20.08	38.94	0.36
	q	6.39	2.56	1.68	4.80	2.76	5.60	1.33	5.17	6.63	3.38	1.89	1.20	1.23	1.11	2.00
T₃lm²	T	2.06	0.19	5.95	57.90	2.55	0.79	0.10	3.65	1.23	45.56	57.54	152.51	24.77	53.65	0.48
	X	0.46	0.06	2.40	4.04	0.36	0.13	0.01	1.52	0.23	6.16	14.40	19.50	6.66	4.96	0.05
	q	0.40	0.67	0.68	0.22	0.33	0.28	0.33	0.66	0.29	0.22	0.47	0.20	0.41	0.14	0.28
T₃lm¹	T	1.88	0.12	5.24	42.82	2.62	0.77	0.06	3.08	1.12	49.27	50.21	136.12	25.49	55.60	0.39
	X	1.18	0.11	3.80	20.76	1.17	0.52	0.03	2.74	4.31	30.95	38.54	97.07	17.12	35.80	0.20
	q	1.03	1.22	1.08	1.15	1.06	1.11	1.00	1.19	5.53	1.08	1.25	1.01	1.05	1.02	1.11
T₃t²	T	2.20	0.26	4.60	92.22	4.63	0.74	0.08	4.26	1.72	56.00	52.81	164.87	27.19	60.04	0.49
	X	1.75	0.18	3.45	36.19	2.40	0.60	0.03	2.95	1.10	31.94	93.29	118.16	17.49	32.46	0.25
	q	1.52	2.00	0.98	2.00	2.18	1.28	1.00	1.28	1.41	1.12	3.03	1.23	1.07	0.92	1.39
T₃t¹	T	2.57	0.22	4.26	44.84	2.49	0.68	0.06	3.09	1.21	38.70	40.44	156.63	22.73	63.98	0.31
	X	1.51	0.11	3.24	20.08	1.29	0.49	0.04	2.17	0.86	27.85	31.34	106.67	17.20	41.49	0.19
	q	1.31	1.22	0.92	1.11	1.17	1.04	1.33	0.94	1.10	0.98	1.02	1.11	1.05	1.18	1.06
ηγ	T	3.44	0.37	8.24	150.99	5.65	13.40	0.06	106.90	104.10	144.91	49.12	139.70	16.49	33.83	0.50
	X	0.74	0.11	3.40	19.28	1.11	3.13	0.02	28.80	12.43	36.10	25.50	26.57	3.22	6.03	0.10
	q	0.64	1.22	0.97	1.06	1.00	6.65	0.50	12.52	15.94	1.26	0.83	0.28	0.20	0.17	0.56

异常编号	异常名称	异常面积/km²	元素组合表达式	异常分类	评序
AS16	白莱	9.11	^119.35Pb-^86.79Au-^37.82Bi-^28.47Ag-^19.67Sb-^16.74Zn-^12.66Cd -^5.59W-^4.75As-^4.02Cu-^1.17Sn-^1.1Co	甲₁	1
AS22	布斯	10.26	^105.38Au-^26.89Pb-^23.14Ag-^13.92Cd-¹⁰Bi-^8.16Zn -^7.71Mo-^6.15W-^2.04As-^1.91Sn-^1.25Co-^0.42Hg	甲₁	2
AS26	磨莫亚	16.32	^66.91Pb-^19.7Mo-^12.15Ag-^11.92Zn-^11.31Cd -^8.63Bi-^5.28Au-^4.91W-^1.59Cu-^1.38Sb	乙₂	3
AS21	益延	7.10	^52.11Mo-^10.65Pb-^6.11W-^5.91Ag-^4.04Au-^3.21Cu-^2.1Sn-^0.31Ni	甲₁	4
AS11	派仲	9.24	^20.46Hg-^13.68Ni-^5.81As-^3.65Au-^2.37Co-^2.2Sb-^1.46Cu	乙₃	5
AS15	比鲁古郎	2.41	^24.87Pb-^11.35Zn-^7.62Ag	乙₃	6
AS14	日木永铅	9.57	^13.1Pb-^13.04Ag-^2.28As-^2.12Mo-^2.02Sb-^1.45Au-^1.01W	乙₃	7
AS28	磨莫亚东	2.33	^12.52Pb-^4.92Cd-^2.33Ag-^0.87Bi	乙₃	8
AS23	色师	5.11	⁹Ni-^3.88Co-^2.68Mo-^1.53Ag-^1.26Cu	丙₁	9
AS24	色卜池	3.49	^3.9Mo-^2.49Ni-^1.78Ag-^1.74Zn-^1.72Cd-^1.67Cd-^1.39Sb-^0.68Cu	丙₁	10
AS01	央高北西	2.38	^5.75Ag-^4.66Cd-^3.25Bi-^0.64Hg	丙₁	11
AS02	铁来垭	5.97	^4.55Sb-^3.18Cd-^3.06Ag-^1.19As-¹Hg	乙₃	12
AS08	央日永北	3.42	^3.33W-³Co-^1.72Cu-^1.57Au-^1.57Bi-^1.13Sb-^1.02Ni	乙₃	13
AS29	洛益南	4.96	^6.27W-^2.69Cu-^0.64Bi-^0.13Mo	乙₃	14
AS13	日木永北铅	1.42	^3.4Pb-^2.43Ag-^1.91Cd-^1.26As-^0.46Sn	乙₃	15
AS07	雄热萨南	1.81	^9.03Sb-^0.43Cu	丙₁	16
AS03	翁水村	1.95	^6.73Ag-^1.19As	丙₁	17
AS09	益延北	3.39	^2.26W-^2.12Bi-²Ag-^0.94Cu	甲₁	18
AS06	雄热萨	2.00	^2.03Sn-^1.8Cd-^1.47As-^1.26Pb	丙₁	19
AS05	雄热萨西	1.37	^2.8Pb-^2.63Cd-^0.77As-^0.31Ag	丙₁	20
AS20	达延嘎杂北西	3.02	^3.16Au-^1.42Cu-^1.41Sb-^0.16Bi	丙₁	21
AS12	达波北东	1.03	^4.69Au-^0.67Sn	丙₁	22
AS25	打坠	2.12	^2.03W-^1.68Sb-^0.73Pb-^0.33Cu	乙₃	23
AS27	磨莫亚北	0.55	^3.63Mo	丙₁	24
AS04	杰底	1.10	^1.35Au-^1.05Sb-^0.65As	丙₁	25
AS19	达吉牛场	1.73	^0.98Cu-^0.92Au-^0.71Bi	丙₁	26
AS18	乌休牛场	1.31	^1.41Au-^0.65Ni	丙₁	27
AS10	泽央仲	1.14	^1.32Au-^0.56Sb	丙₁	28
AS17	达延格礼北西	1.46	^0.4Bi-^0.24Co	丙₁	29