四川省510铀矿床中铀及伴生元素的分带特征

doi:10.11720/wtyht.2023.1264

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Abstract

Previous studies of associated elements of the No. 510 uranium deposit in Sichuan mostly focus on individual ore blocks. To classify the types of associated resources in the whole deposit, this study conducted a comprehensive comparative analysis based on the investigation of horizontal and vertical zoning of associated elements of uranium ores, as well as the existing study results of rock and deposit geochemistry and metallogenic regularity. Accordingly, this study ascertained the zoning characteristics of associated minerals in the whole deposit. In the vertical direction, the deposit was divided into three mineral assemblage zones: the iron-nickel sulfide-uranium mineralization zone, the low-content sulfide-uranium mineralization zone, and the sphalerite-low-content iron-nickel sulfide-uranium mineralization zone. In the horizontal direction, the deposit was divided into the upper Ni, V → Zn → Ni (low-content Cu) and the lower Mo, Ni, Zn, V → Zn, Ni → Mo, Ni, Zn → Zn (low-content Cu) metallogenic element assemblage transition zones. The smelting and recovery experiments were completed for uranium and associated metals such as molybdenum, nickel, and zinc in the deposit, increasing the economic value of the deposit and expanding economic benefits. This study determined six types of associated resources for the No. 510 uranium deposit and comprehensively evaluated the utilization of associated elements, providing theoretical guidance for both the deep prospecting prediction and the prospecting of replacement resources in similar mines.

Key words： uranium associated resource 510 uranium deposit zoning characteristics deposit zoning characteristics deposit utilization prospect

Received: 26 May 2022 Published: 11 October 2023

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	Yong-Fei WANG
	Zhi-Kai DONG
	Wen-Xiang LYU
	Bao-Xin LI
	Bing MA

Cite this article:

Yong-Fei WANG,Zhi-Kai DONG,Wen-Xiang LYU, et al. Zoning characteristics of uranium and associated elements in the No. 510 uranium deposit, Sichuan[J]. Geophysical and Geochemical Exploration, 2023, 47(4): 881-891.

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https://www.wutanyuhuatan.com/EN/10.11720/wtyht.2023.1264 OR https://www.wutanyuhuatan.com/EN/Y2023/V47/I4/881

8])
1—quaternary system; 2—lower member of Lalong formation; 3—upper member of Ta'er formation; 4—lower member of Ta'er formation; 5—upper member of Yangchanggou formation; 6—lower member of Yangchanggou group; 7—upper member of Sulimutang formation; 8—lower section of Sulimutang formation; 9—stratigraphic boundary; 10—measured and inferred faults; 11—dyke(μ—porphyrite type;sl—slate;si—siliceous rock;Dm—dolomite); 12—uranium deposit; 13—drilling and numbering; 14—sampling location and number
">

Geological sketch of 510 uranium deposit (modified from Chen T H,et al.^[8])
1—quaternary system; 2—lower member of Lalong formation; 3—upper member of Ta'er formation; 4—lower member of Ta'er formation; 5—upper member of Yangchanggou formation; 6—lower member of Yangchanggou group; 7—upper member of Sulimutang formation; 8—lower section of Sulimutang formation; 9—stratigraphic boundary; 10—measured and inferred faults; 11—dyke(μ—porphyrite type;sl—slate;si—siliceous rock;Dm—dolomite); 12—uranium deposit; 13—drilling and numbering; 14—sampling location and number

8])
1—lower member of Ta'er formation; 2—upper member of Yangchanggou formation;3—lower member of Yangchanggou formation;4—limestone;5—slate;6—siliceous;7—fine sandstone;8—reverse fault;9—strike-slip thrust fault; 10—location of exploration line and number;11—adit;12—borehole and number;13—industrial uranium ore body
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Distribution map of ore body in the third middle section(3 478.61 m) of Zhongchanggou ore section of 510 uranium deposit (modified from Chen T H,et al.^[8])
1—lower member of Ta'er formation; 2—upper member of Yangchanggou formation;3—lower member of Yangchanggou formation;4—limestone;5—slate;6—siliceous;7—fine sandstone;8—reverse fault;9—strike-slip thrust fault; 10—location of exploration line and number;11—adit;12—borehole and number;13—industrial uranium ore body

Content of trace elements in ore body and surrounding rock Xueliangou,Xiangyangxigou,Xiangyangdonggou ore block10^-6

样品编号									备注
R0-5	160	450	84.5	235	226	562	露天采场	3562	中长沟矿段^[17]
R2-4	65.8	2730	41.6	325	43.7	5587	2中段	3522
R2-6	11982	188887	383	220	60.7	9010	2中段	3522
R2-7	2993	154632	38.4	288	33.3	10375	2中段	3522
R2-8	322	12117	21.9	137	17.2	379	2中段	3522
R3-1	116	1677	103	747	110	464	3中段	3482
R3-6	168	2065	133	612	289	18644	3中段	3482
R3-7	44.9	375	9.73	130	22.4	542	3中段	3482
R3-8	817	4717	12.5	1282	68	3792	3中段	3482
R4-1	916	9821	55.8	212	31.2	574	4中段	3442
R4-3	1926	7238	15.7	829	952	1006	4中段	3442
R4-4	1195	5142	14.7	379	65.7	398	4中段	3442
R4-5	469	11017	149	363	100	4860	4中段	3442
R4-6	357	6655	150	332	68.2	1206	4中段	3442
R4-7	579	21694	147	274	28.8	660	4中段	3442
R5-1	283	9760	49.6	502	28.8	19919	5中段	3402
R5-2	787	53979	152	612	37.1	30428	5中段	3402
R5-3	125	814	32	199	10.1	2280	5中段	3402
R5-4	166	1190	140	140	18.2	1032	5中段	3402
R6-3	109	1486	54.9	62.8	19.8	881	6中段	3362
R6-4	273	5679	60.4	95.8	27.7	631	6中段	3362
R7-2	833	34046	27.1	335	76.3	2483	7中段	3314
R7-3	181	4832	28	273	45.7	6092	7中段	3314
R7-4	290	2322	72.8	207	100	4272	7中段	3314
R7-6	63.4	932	71.5	110	64.3	453	7中段	3314
R7-7	102	1425	32.7	114	50.3	358	7中段	3314
R7-8	327	4564	403	255	35.9	4002	7中段	3314
R7-11	3207	28556	28.9	175	11.4	5501	7中段	3314
ZH10	600	10200	150	400	40	1270	ZK111	3425	天赞沟矿段^[18]
ZH11	80	24400	1950	50	120	4340	ZK111	3422.5
ZH12	120	700	20	400	40	550	ZK111	3420
ZH13	300	6000	350	450	60	780	ZK111	3418
ZH14	380	4200	30	300	40	1190	ZK111	3388
ZH15	2400	23000	400	500	30	3810	ZK111	3386
ZH16	2500	29000	700	350	180	6560	ZK111	3383
ZH17	2700	84000	1200	1200	140	9490	ZK111	3379
ZH18	2600	25000	220	800	280	2190	ZK112	3272
YK-1	440	4960	60	570	100	1370	ZK39	75	垭口矿段^[19]
YK-2	170	5140	30	1050	130	37.8	ZK39	96
YK-3	340	1310	130	1540	550	1066	ZK24	163
YK-4	240	2340	210	2740	220	39	ZK24	166

Content of trace elements in ore body and surrounding rock Zhongchanggou,Tianzangou,Yakou ore block 10^-6

Characteristic parameters of main elements and associated beneficial elements in ore of 510 uranium deposit10^-6

Characteristics of associated beneficial elements in ore of 510 uranium deposit

8])
a—measuring point position and corresponding peak spectrum of zinc, nickel and other elements in the energy spectrum composition of uranium ore;b—the measuring point position and corresponding peak spectrogram of molybdenum, iron and other elements in the energy spectrum composition of uranium ore;c—measuring point position and corresponding peak spectrum of zinc and other elements in the energy spectrum composition of uranium ore;d—measuring point position and corresponding peak spectrogram of vanadium and other elements in energy spectrum composition of uranium ore
">

Energy spectrum composition of uranium and associated beneficial elements in 510 uranium deposit(modified from Chen T H,et al^[8])
a—measuring point position and corresponding peak spectrum of zinc, nickel and other elements in the energy spectrum composition of uranium ore;b—the measuring point position and corresponding peak spectrogram of molybdenum, iron and other elements in the energy spectrum composition of uranium ore;c—measuring point position and corresponding peak spectrum of zinc and other elements in the energy spectrum composition of uranium ore;d—measuring point position and corresponding peak spectrogram of vanadium and other elements in energy spectrum composition of uranium ore

Correlation analysis between uranium and associated beneficial elements

Correlation comparison of uranium and associated beneficial elements in each ore section of 510 uranium deposit

Vertical and horizontal zoning characteristics of uranium associated elements in 510 uranium deposit

Microscopic characteristics of uranium associated element minerals
a—radiofascicular pyroxene;b—the pyrite nickel ore is metasomatized by radial fascicular needle nickel ore and pyroxene;c—chalcopyrite, galena and sphalerite lump;d—vein pitchblende coexists with sphalerite and pyrite;Py—pyrite; Cal—calcite; Sp—sphalerite; Ccp—chalcopyrite; Gn—galena; Po—polydymite;U—pitchblende

Classification of uranium associated resources

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