吉尔吉斯斯坦Au、Cu、Pb、Zn、W、Sn矿床潜力评价——基于1∶100万地球化学数据

doi:10.11720/wtyht.2022.2594

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Abstract

As an important part of the Tianshan metallogenic belt in Central Asia, Kyrgyzstan boasts rich mineral resources and completely types of mineral resources. The national scale (1∶1 000 000) geochemical mapping of Kyrgyzstan covers an area of about 170 000 km² across the country and the analyses and tests of 69 elements. It has filled in the blank of national geochemical mapping in Kyrgyzstan and will provide basic geochemical data for studies on basic geology, mineral development, environmental protection, and agricultural production inthe country. According to the regional geologic and structural evolution and geochemical background, the study area is divided into five structural geochemical regions. According to the geological background and the statistical analysis of geochemical parameters of major metallogenic elements, it is considered that Kyrgyzstan is a metallogenic favorable region of Au, Cu, Pb, Sb, Sn, W, and Ag, with notably distributed geochemical anomalies. In detail, the northern Tianshan Mountain shows high anomalies of Au, Cu, Pb, Zn, Ag, Be, and As. The middle Tianshan Mountaincan be divided into the eastern and western parts with the Fergana fault as the boundary. Among them, the western part is rich in Au, Cu, Cr, Mo, and Co, while the eastern part is rich in Au, W, Sn, Co, Cr, and Ni. As for the southern Tianshan Mountain, the western part is characterized by the concentrated distribution of Cu, Co, Cr, Ni, Au, As, Sb,and Hg, while the eastern part is characterized by the distribution of W, Sn, and Bi associations. The analytical results of metallogenic significance are as follows.The Chattkar area in middle Tianshan Mountain is considered the area with the highest prospecting potential in Kyrgyzstan. It has enormous potential for the prospecting of Cu, Pb, Au, and W. It is followed by the Zarejaz area in the eastern part of the southern Tianshan Mountain, which also has great prospecting potential and is highly favorable forthe prospecting of Au, CU, W, and Sn. Besides, the western part of the southern Tianshan Mountain and the Talas-Narun area also enjoygood prospecting potential and are prospecting favorable areas of gold, copper, lead, and zinc polymetallic deposits.

Key words： gold,copper,lead,zinc,tungsten,and tin deposits evaluation of prospecting potential metallogenic elements geochemistry Kyrgyzstan

Received: 29 December 2020 Published: 25 February 2022

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Corresponding Authors: LUO Yan-Jun E-mail: 305590518@qq.com;11282186@qq.com

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	Bin WANG
	Yan-Jun LUO
	Guang-Lu MENG
	Jing ZHANG
	Hai-Di ZHANG
	Bo CHEN
	Zi-Xin HE

Cite this article:

Bin WANG,Yan-Jun LUO,Guang-Lu MENG, et al. Potential assessment of gold, copper, lead, zinc, tungsten, and tin deposits in Kyrgyzstan based on 1∶1 000 000 scale geochemical data[J]. Geophysical and Geochemical Exploration, 2022, 46(1): 58-69.

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https://www.wutanyuhuatan.com/EN/10.11720/wtyht.2022.2594 OR https://www.wutanyuhuatan.com/EN/Y2022/V46/I1/58

Actual sampling site map of 1∶1 million geochemical mapping for Kyrgyzstan

69 elemental analysis methods and detection limit

Geochemical map of Cu elements in Kyrgyzstan

Sn, W, Bi anomaly map of Kyrgyzstan

Geochemical zoning map of Kyrgyzstan

Geochemical division of Kyrgyzstan

元素	数据个数	最小值	下四分位数	几何平均值	算术平均值	中位数	上四分位数	最大值	标准离差
Ag	1756	0.002	0.039	0.059	0.080	0.058	0.086	6.680	0.215
Al₂O₃	1756	0.150	8.000	9.360	10.250	11.280	12.880	16.860	3.410
As	1756	0.300	4.600	6.900	11.300	7.100	10.600	1542.600	45.700
Au	1756	0.100	0.500	1.000	2.700	1.000	1.800	584.600	19.400
B	1756	2.000	18.000	29.000	38.000	32.000	52.000	257.000	26.000
Ba	1756	32.000	479.000	632.000	743.000	650.000	861.000	4689.000	476.000
Be	1756	0.100	1.100	1.500	1.800	1.800	2.300	9.600	0.900
Bi	1756	0.010	0.140	0.200	0.280	0.200	0.290	18.960	0.620
Br	1756	0.100	0.700	1.010	1.340	1.000	1.600	30.200	1.470
CaO	1756	0.220	2.330	5.250	8.630	5.350	11.290	50.790	8.930
Cd	1756	0.003	0.077	0.125	0.170	0.125	0.202	19.365	0.475
Ce	1756	2.400	34.200	46.200	53.200	49.100	65.000	262.000	29.000
Cl	1756	19.000	51.000	76.000	136.000	74.000	107.000	28760.000	876.000
Co	1756	0.200	5.700	8.200	9.900	8.700	12.400	67.300	6.600
Cr	1756	4.200	27.800	45.000	72.600	48.000	70.100	2405.600	158.400
Cs	1756	0.400	2.700	3.700	4.300	3.900	5.400	22.400	2.300
Cu	1756	1.000	11.100	17.300	21.600	18.300	28.900	300.300	17.000
Dy	1756	0.200	2.700	3.200	3.500	3.500	4.200	15.200	1.400
Er	1756	0.100	1.600	1.900	2.100	2.100	2.500	10.200	0.900
Eu	1756	0.100	0.800	0.900	0.900	1.000	1.100	2.500	0.300
F	1756	121.000	395.000	505.000	542.000	523.000	659.000	2246.000	208.000
Ga	1756	0.500	10.400	12.300	13.600	14.800	17.200	26.200	4.800
Gd	1756	0.000	3.000	3.600	4.000	3.900	4.800	15.700	1.600
Ge	1756	0.100	1.000	1.100	1.100	1.100	1.300	2.900	0.300
Hf	1756	0.200	3.400	4.000	4.400	4.400	5.200	16.700	1.700
Hg	1756	1.000	32.000	42.300	44.000	43.000	52.000	136.500	384.000
Ho	1756	0.000	1.000	1.000	1.000	1.000	1.000	3.000	0.000
I	1756	0.100	0.400	0.600	0.700	0.500	0.800	68.200	1.700
In	1756	0.004	0.027	0.035	0.040	0.039	0.048	2.762	0.067
K₂O	1756	0.060	1.790	2.290	2.560	2.660	3.280	6.170	1.030
La	1756	2.400	18.700	24.800	27.900	25.900	33.700	138.800	14.300
Li	1756	1.700	15.400	21.000	23.500	21.500	30.200	68.100	11.000
Lu	1756	0.020	0.240	0.290	0.320	0.310	0.390	1.570	0.140
MgO	1756	0.060	1.260	1.830	2.310	1.920	2.740	29.770	2.160
Mn	1756	59.000	402.000	511.000	568.000	523.000	668.000	4768.000	307.000
Mo	1756	0.100	0.470	0.700	0.890	0.660	1.010	16.700	0.930
N	1756	20.000	130.000	216.000	304.000	213.000	367.000	5653.000	338.000
Na₂O	1756	0.090	0.980	1.470	1.810	1.580	2.650	6.240	1.050
Nb	1756	0.300	8.000	9.800	11.000	10.600	13.300	89.700	5.200
Nd	1756	1.400	16.400	20.400	22.600	22.000	27.400	90.200	10.000
Ni	1756	0.700	11.700	19.700	31.800	20.800	34.600	1294.300	71.000
P	1756	87.000	422.000	519.000	562.000	534.000	665.000	2042.000	226.000
Pb	1756	2.000	11.600	15.400	17.700	15.700	20.300	714.900	21.900
Pr	1756	0.400	4.300	5.500	6.100	5.900	7.500	26.500	2.800
Rb	1756	2.600	61.700	82.500	96.200	96.300	125.400	370.500	46.700
S	1756	24.000	102.000	191.000	377.000	179.000	320.000	42892.000	1470.000
Sb	1756	0.080	0.490	0.750	1.700	0.730	1.100	928.910	22.470
Sc	1756	1.000	6.100	8.400	9.600	9.000	12.100	54.100	4.900
Se	1756	0.010	0.080	0.140	0.210	0.130	0.240	2.890	0.250
SiO₂	1756	9.580	55.020	57.670	59.590	62.860	67.900	85.390	12.580
Sm	1756	0.300	3.200	3.900	4.300	4.300	5.200	16.200	1.800
Sn	1756	0.100	1.500	1.900	2.300	2.000	2.600	230.000	5.700
Sr	1756	17.000	143.000	204.000	240.000	205.000	287.000	3176.000	182.000
Ta	1756	0.050	0.480	0.680	0.810	0.760	1.030	6.920	0.500
Tb	1756	0.040	0.480	0.570	0.620	0.610	0.740	2.520	0.240
TC	1756	0.000	0.400	1.100	2.100	1.200	2.700	13.700	2.400
Te	1756	0.000	0.000	0.000	0.000	0.000	0.000	0.000	0.000
TFe₂O₃	1756	0.460	2.830	3.630	3.990	3.830	4.970	12.760	1.640
Th	1756	0.800	6.100	8.300	9.600	8.800	11.600	66.000	5.500
Ti	1756	194.000	1925.000	2466.000	2741.000	2671.000	3427.000	11773.000	1205.000
Tl	1756	0.060	0.350	0.470	0.530	0.510	0.680	2.060	0.240
Tm	1756	0.020	0.250	0.300	0.330	0.320	0.400	1.630	0.140
U	1756	0.400	1.700	2.300	2.500	2.300	3.000	16.700	1.200
V	1756	1.900	44.200	62.700	74.600	69.000	98.500	388.100	41.700
W	1756	0.110	0.890	1.330	1.870	1.330	1.840	125.800	4.650
Y	1756	1.400	14.400	17.600	19.100	18.700	22.600	93.900	7.700
Yb	1756	0.200	1.600	1.900	2.100	2.100	2.500	10.600	0.900
Zn	1756	9.000	39.000	51.800	57.700	53.600	72.300	1029.200	34.100
Zr	1756	12.000	99.000	122.000	134.000	129.000	163.000	659.000	61.000

Statistical table of geochemical parameters of some ore-forming elements in Kyrgyz

Enrichment coefficients of main ore-forming elements in Kyrgyz

元素	算术平均值 ( $X -$ )	标准离差 (S₀)	变异系数 (C_v)	备注	元素	算术平均值 ( $X -$ )	标准离差 (S₀)	变异系数 (C_v)	备注
Sb	1.70	22.47	13.22	高	Ba	743.00	476.00	0.64	弱
Hg	44.00	384.00	8.73		Zn	57.70	34.10	0.59
Au	2.70	19.40	7.19		Th	9.60	5.50	0.57
Cd	0.17	0.48	2.79	较高	V	74.60	41.70	0.56
Ag	0.08	0.22	2.69		Mn	568.00	307.00	0.54
W	1.87	4.65	2.49		La	27.90	14.30	0.51
Sn	2.30	5.70	2.48		Be	1.80	0.90	0.50
Ni	31.80	71.00	2.23		U	2.50	1.20	0.48
Bi	0.28	0.62	2.21		Nb	11.00	5.20	0.47
Cr	72.60	158.40	2.18		Li	23.50	11.00	0.47
Pb	17.70	21.90	1.24	一般	Zr	134.00	61.00	0.46
Mo	0.89	0.93	1.04	一般	Ti	2741.00	1205.00	0.44
Cu	21.60	17.00	0.79	弱	TFe₂O₃	3.99	1.64	0.41
Sr	240.00	182.00	0.76		Y	19.10	7.70	0.40
Co	9.90	6.60	0.67		P	562.00	226.00	0.40

Variation coefficients of major metallogenic elements in Kyrgyzstan

Statistical table of metallogenic advantage coefficient (Ma) of Kyrgyzstan

Sorting table of element anomaly significance statistics

Histogram of comprehensive significance

Prospector map of Kyrgyzstan

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