Average Background Values of 39 Chemical Elements in Stream Sediments of China
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摘要: 中国以水系沉积物测量为主的区域地球化学调查自1978年开始以来,已覆盖陆地面积约690×104 km2,积累了海量的高质量基础地球化学数据.在这些数据的开发利用中不同地区、不同范围间的数据对比是研究元素分散富集、成矿趋势、异常评价的一项重要内容.以全国1:20万水系沉积物测量数据为依据,采用全部原始数据,以X±3S为临界值一次性剔除异点后的数据集的中位数作为背景值的估计值,使用统一方法计算出了全国范围、9个大地构造单元、12个地球化学景观区、19个成矿带的39种元素水系沉积物背景值,探讨了全国范围、不同构造单元、不同景观区、不同成矿带各元素背景值的区域分布规律和特征.研究表明不同的景观区、不同的成矿带、不同的大地构造单元,由于地质背景和景观条件不同,元素的地球化学分布特征也不同,表现出不同的区域分布特点和分布模式.这些背景值为进一步深入开发利用区域化探数据和资料提供了可供对比的基础数据.Abstract: Large amounts of high quality basic geochemical data covering a land area of about 6 900 000 square kilometers have been gained by regional geochemical survey mainly featuring stream sediment measurement since 1978 in China. The development and utilization of the comparative data in different areas and different ranges is an important part of the research of dispersion of element enrichment, metallogenic tendency, and anomaly evaluation. Based on the total original data of the national 1:200 000 stream sediment survey, background values of 39 elements in stream sediments are calculated for the nationwide 9 tectonic units, 12 landscape areas and 19 metallogenic belts. The median of the data set after disposable eliminating outliers from a data population with X±3S as the critical value is used as an estimate value of geochemical background values. Different element distributions and characters of background values of the nationwide tectonic units, landscape areas and metallogenic belts are discussed. The results show that geochemical distributions of elements are different among various landscapes, metallogenic belts and tectonic units because of different geological backgrounds and landscape conditions. It shows there are different regional distribution characteristics and the different distribution patterns. These background values can be used as basic data for comparison for further development and utilization of regional geochemical data.
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Key words:
- median /
- background value /
- stream sediment /
- regional geochemical survey /
- geochemistry
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表 1 离群值剔除前后参数对比
Table 1. Comparing the arithmetic means, geometric means and medians before and after rejection of outliers
元素 X2-X1 X3-X1 X4-X1 Xg2-Xg1 Xg3-Xg1 Xg4-Xg1 m2-m1 m3-m1 m4-m1 Ag -28.61 -23.54 -20.18 -11.61 -8.45 -6.14 -6.00 -2.32 -1.00 As -6.30 -5.16 -4.38 -2.51 -1.74 -1.28 -1.80 -1.08 -0.70 Au -1.12 -0.95 -0.86 -0.30 -0.19 -0.14 -0.24 -0.16 -0.09 B -12.06 -6.41 -4.37 -6.55 -2.85 -1.68 -6.30 -2.00 -1.00 Ba -72.30 -61.02 -46.38 -20.05 -29.40 -21.20 -20.10 -14.00 -8.00 Be -0.32 -0.30 -0.25 -0.09 -0.10 -0.09 -0.06 -0.06 -0.06 Bi -0.26 -0.23 -0.22 -0.06 -0.04 -0.04 -0.05 -0.03 -0.02 Cd -162.72 -146.80 -137.24 -37.45 -31.76 -25.85 -20.00 -10.00 -10.00 Co -2.39 -1.96 -1.58 -0.97 -0.98 -0.73 -0.70 -0.63 -0.40 Cr -16.14 -13.61 -11.89 -6.85 -5.36 -4.26 -4.50 -2.90 -2.20 Cu -7.50 -6.16 -5.20 -3.06 -2.47 -1.86 -2.10 -1.30 -0.80 F -70.86 -54.27 -40.78 -30.58 -27.72 -18.32 -26.00 -15.00 -10.00 Hg -508.25 -499.77 -493.16 -15.31 -9.90 -6.39 -12.00 -7.00 -3.00 La -4.37 -3.47 -2.58 -1.94 -1.96 -1.44 -1.60 -1.00 -0.80 Li -4.87 -3.30 -2.35 -2.41 -1.84 -1.19 -1.90 -0.90 -0.50 Mn -141.98 -112.34 -85.59 -51.22 -57.37 -39.27 -45.00 -28.00 -18.00 Mo -0.51 -0.40 -0.33 -0.22 -0.15 -0.11 -0.16 -0.08 -0.06 Nb -2.66 -2.39 -1.89 -1.12 -1.32 -1.00 -0.90 -0.80 -0.50 Ni -7.83 -6.18 -5.10 -3.62 -2.51 -1.84 -2.50 -1.40 -1.00 P -150.15 -104.68 -70.77 -81.76 -57.81 -34.96 -60.80 -32.00 -17.00 Pb -9.01 -7.79 -6.68 -3.21 -2.75 -2.04 -1.80 -1.20 -0.60 Sb -1.05 -0.93 -0.85 -0.26 -0.18 -0.14 -0.17 -0.10 -0.06 Sn -1.49 -1.37 -1.26 -0.46 -0.40 -0.32 -0.24 -0.14 -0.14 Sr -58.04 -33.27 -21.11 -31.34 -15.20 -8.34 -31.70 -12.6 -6.00 Th -2.33 -2.00 -1.64 -0.94 -1.00 -0.78 -0.50 -0.30 -0.20 Ti -416.02 -632.37 -557.83 172.90 -291.50 -262.35 10.00 -120.00 -89.00 U -0.83 -0.67 -0.56 -0.40 -0.32 -0.24 -0.26 -0.16 -0.13 V -13.62 -12.07 -9.83 -4.04 -6.32 -4.80 -3.84 -3.16 -2.22 W -1.22 -1.10 -1.01 -0.31 -0.26 -0.20 -0.17 -0.15 -0.07 Y -2.49 -2.34 -2.04 -0.86 -1.16 -1.06 -0.70 -0.60 -0.40 Zn -12.55 -10.91 -9.17 -3.52 -4.46 -3.26 -3.10 -2.20 -1.50 Zr -33.74 -29.62 -22.30 -7.97 -16.08 -11.17 -9.20 -7.20 -4.20 SiO2 1.76 1.68 1.51 2.94 2.65 2.35 0.56 0.53 0.45 Al2O3 0.42 0.04 -0.03 0.91 0.33 0.13 0.22 0.02 0.00 Fe2O3 -0.46 -0.44 -0.34 -0.09 -0.24 -0.18 -0.15 -0.14 -0.08 Na2O -0.40 -0.09 -0.02 -0.22 -0.05 -0.01 -0.28 -0.05 -0.01 K2O -0.10 -0.09 -0.05 0.06 -0.03 -0.03 -0.03 -0.03 -0.01 CaO -2.44 -1.80 -1.01 -0.98 -0.61 -0.26 -1.03 -0.57 -0.20 MgO -0.46 -0.28 -0.21 -0.24 -0.12 -0.08 -0.21 -0.08 -0.05 注:X1、Xg1、m1为剔除前算术平均值、几何均值、中位数;X2~X4,Xg2~Xg4,m2~m4分别为X±2S、X±2.5S、X±3S剔除异点后的算术平均值、几何均值、中位数. 表 2 中国水系沉积物39种元素统计参数
Table 2. Parameters of 39 elements in stream sediments of China
元素 水系沉积物 NSB RCC 样品数 X G S m HS Ag 1 261 768 73.0 67.0 29.4 69.0 39.0 80.0 0.86 As 1 231 748 9.0 7.0 5.4 8.0 7.0 10.0 0.80 Au 1 258 124 1.2 1.0 0.7 1.1 0.9 1.4 0.79 B 1 293 203 44.0 34.0 28.1 41.0 42.0 40.0 1.03 Ba 1 290 892 485 439 195 474 249 500 0.95 Be 1 290 475 2.1 1.9 0.7 2.0 0.9 1.8 1.11 Bi 1 221 659 0.3 0.3 0.1 0.3 0.2 0.3 0.90 Cd 1 186 204 125.8 102.7 69.4 110.0 93.0 90.0 1.22 Co 1 274 999 12.0 10.0 5.4 11.0 7.0 13.0 0.87 Cr 1 267 484 54.0 45.0 27.7 54.0 39.0 65.0 0.84 Cu 1 268 996 20.0 17.0 10.3 20.0 14.0 24.0 0.82 F 1 293 160 475 439 178 460 235 480 0.96 Hg 1 212 945 34.0 25.0 26.1 27.0 35.0 40.0 0.68 La 1 291 519 37.0 35.0 12.7 36.0 16.0 38.0 0.95 Li 1 257 317 31.0 28.0 13.2 30.0 18.0 30.0 1.00 Mn 1 276 560 653 579 291 622 373 600 1.04 Mo 1 229 659 0.8 0.7 0.4 0.7 0.6 0.8 0.88 Nb 1 260 629 15.0 14.0 5.6 15.0 7.0 16.0 0.91 Ni 1 266 472 23.0 19.0 12.6 22.0 18.0 26.0 0.85 P 1 273 624 571 509 262 535 336 520 1.03 Pb 1 258 140 23.0 21.0 8.9 22.0 11.0 23.0 0.94 Sb 1 195 253 0.7 0.5 0.4 0.6 0.6 0.8 0.69 Sn 1 204 077 2.8 2.6 1.2 2.7 1.5 2.5 1.08 Sr 1 285 107 146.0 112.0 96.9 129.0 141.0 170.0 0.76 Th 1 246 041 11.4 10.5 4.3 11.0 5.5 12.5 0.88 Ti 1 265 879 3 835 3 464 1 487 3 881 1 822 4 300 0.90 U 1 190 714 2.4 2.2 1.0 2.2 1.3 2.6 0.86 V 1 273 751 77.0 68.0 33.9 75.0 45.0 82.0 0.92 W 1 233 774 1.7 1.5 0.8 1.6 1.0 1.8 0.89 Y 1 265 332 24.0 23.0 6.6 24.0 8.0 23.0 1.02 Zn 1 302 659 67.0 61.0 27.6 65.0 37.0 68.0 0.96 Zr 1 289 574 253 228 103 248 133 250 0.99 SiO2 1 263 781 65.4 64.8 8.7 65.5 11.1 65.0 1.01 Al2O3 1 291 032 12.6 12.1 3.0 12.8 3.6 12.6 1.02 Fe2O3 1 288 781 4.3 4.0 1.7 4.3 2.2 3.4 1.26 Na2O 1 314 093 1.4 0.9 1.1 1.3 1.6 1.6 0.79 K2O 1 322 006 2.4 2.2 0.9 2.4 1.0 2.5 0.94 CaO 1 220 629 2.0 1.1 1.9 1.3 2.4 3.2 0.41 MgO 1 279 217 1.3 1.1 0.8 1.2 1.1 1.8 0.67 含量单位:Ag、Au、Cd、Hg为10-9;氧化物为10-2;其余元素为10-6;X.算术平均值;G.几何平均值;S.标准离差;m.中位数;HS(内散度).上四分点-下四分点,为EDA参数,相当于离差;NSB.中国土壤背景值 (鄢明才等,1997);RCC(区域浓集系数)(史长义,1994)=m/NSB. 附表1 各构造单元水系沉积物39种元素背景值
附表1. Average background values of 39 elements in stream sediments of different geo-units of China
元素 构造单元 全国背景值 1 2 3 4 5 6 7 8 9 Ag 67
(150 257)74
(207 057)62
(130 865)60
(13 641)60
(10 207)62
(269 117)63
(19 739)75
(263 435)73
(154 065)69 As 13
(147 543)8
(198 774)9
(131 934)6
(13 461)5
(10 327)7
(258 526)14
(18 814)9
(261 838)7
(162 967)8 Au 1.1
(147 992)1.1
(203 754)1.2
(130 424)1.1
(13 534)0.8
(10 470)0.9
(264 822)1.3
(18 669)1.3
(266 533)1.1
(157 857)1.1 B 57
(157 447)51
(216 003)40
(130 822)28
(13 870)24
(10 731)21
(258 475)66
(19 957)59
(278 670)40
(162 851)41 Ba 414
(156 593)320
(216 358)513
(127 766)567
(13 724)506
(10 405)571
(261 616)397
(19 991)396
(269 342)558
(156 595)474 Be 2.2
(157 424)2.0
(210 540)2.0
(136 418)1.7
(13 348)1.4
(10 761)1.9
(261 935)2.6
(19 092)2.1
(276 512)2.0
(160 448)2.0 Bi 0.3
(152 120)0.4
(201 414)0.3
(133 917)0.2
(13 359)0.2
(10 501)0.2
(255 499)0.4
(19 398)0.3
(266 645)0.2
(149 597)0.3 Cd 150.00
(147 884)130.00
(187 971)110.00
(130 766)100.00
(13 500)110.00
(9 941)80.00
(255 515)110.00
(19 503)175.00
(244 871)97.00
(152 919)110.00 Co 12
(158 187)10
(212 275)11
(137 285)9
(13 981)8
(10 750)9
(262 275)13
(20 278)14
(256 532)12
(162 981)11 Cr 58
(156 408)42
(208 430)57
(134 165)40
(13 793)34
(10 583)37
(260 077)55
(19 754)68
(255 023)64
(159 249)54 Cu 20
(153 428)16
(211 479)21
(136 136)19
(13 856)18
(10 737)16
(271 646)23
(20 282)24
(243 225)21
(161 120)20 F 514
(160 552)406
(213 887)510
(138 032)453
(14 004)389
(10 776)385
(263 507)452
(20 250)500
(265 659)500
(162 584)460 Hg 22
(147 393)65
(195 514)17
(125 425)13
(12 735)11
(10 141)13
(268 867)15
(18 386)53
(258 319)22
(151 228)26 La 36
(156 455)42
(212 326)35
(136 395)29
(13 724)30
(10 529)29
(266 543)35
(20 319)39
(274 976)39
(161 713)36 Li 38
(159 771)30
(213 266)29
(138 302)22
(14 004)20
(10 724)21
(263 630)42
(20 144)36
(270 067)29
(127 635)30 Mn 604
(156 579)509
(206 363)629
(137 440)552
(13 899)472
(10 614)603
(263 465)599
(20 243)751
(273 147)646
(162 872)622 Mo 0.6
(149 093)0.9
(206 235)0.6
(129 608)0.8
(13 305)0.8
(10 053)0.8
(256 954)0.7
(19 665)0.7
(258 244)0.6
(154 616)0.7 Nb 14
(158 665)19
(212 886)14
(134 961)11
(13 753)10
(10 626)11
(265 033)15
(20 186)17
(257 986)15
(158 546)15 Ni 26
(154 550)16
(203 615)25
(134 898)18
(13 836)16
(10 696)15
(256 575)28
(19 781)30
(265 351)26
(160 113)22 P 599
(157 142)397
(211 480)565
(134 966)516
(13 745)451
(10 677)533
(260 023)577
(20 071)543
(267 253)625
(158 346)535 Pb 21
(152 250)32
(213 756)21
(133 342)14
(13 673)14
(10 161)17
(273 485)25
(19 804)25
(265 857)21
(156 349)22 Sb 0.8
(147 916)0.6
(189 118)0.7
(130 904)0.4
(13 287)0.3
(10 488)0.4
(259 912)0.8
(18 620)0.8
(254 426)0.5
(153 514)0.6 Sn 3.0
(155 215)3.8
(198 177)2.6
(137 290)1.5
(13 654)1.4
(10 557)2.0
(261 221)2.9
(19 674)3.1
(261 781)2.6
(128 246)2.7 Sr 125
(148 679)42
(212 931)175
(132 331)238
(13 443)265
(10 452)215
(261 191)150
(19 254)66
(263 762)190
(156 411)129 Th 11.1
(155 830)14.6
(203 220)10.3
(133 524)8.3
(13 858)7.3
(10 686)9.0
(265 459)12.5
(20 200)12.3
(274 051)10.4
(143 576)11.0 Ti 3 654
(158 633)4 006
(209 438)3 615
(136 133)2 750
(13 866)2 290
(10 659)3 087
(265 737)4 084
(20 461)4 544
(242 034)4 120
(155 201)3 881 U 2.3
(147 888)3.2
(202 184)2.0
(135 020)1.9
(13 868)1.8
(10 571)1.8
(254 144)1.7
(18 840)2.8
(265 196)1.9
(118 173)2.2 V 77
(159 594)67
(210 062)74
(136 591)56
(13 951)46
(10 742)62
(265 193)88
(20 400)90
(251 087)81
(161 590)75 W 1.7
(149 333)2.6
(203 055)1.6
(135 042)1.0
(13 805)0.9
(10 609)1.1
(259 297)2.2
(18 854)1.7
(266 111)1.5
(159 153)1.6 Y 24 (149 893) 26
(202 333)24
(137 398)19
(13 813)17
(10 723)22
(265 841)26
(14 629)25
(272 935)23
(162 690)24 Zn 71
(157 403)66
(205 061)64
(136 329)55
(14 016)46
(10 764)55
(277 620)72
(20 394)77
(271 798)62
(163 064)65 Zr 222
(159 781)335
(211 946)213
(135 511)145
(13 922)128
(10 752)174
(265 267)225
(20 327)284
(274 715)278
(158 288)248 SiO2 64.6
(156 327)69.2
(215 984)63.8
(133 527)56.8
(14 117)55.5
(10 885)66.0
(262 473)67.4
(20 213)66.5
(280 364)61.0
(154 350)65.5 Al2O3 12.4
(160 364)13.3
(222 756)12.2
(134 796)11.0
(14 110)9.0
(10 874)12.9
(255 817)13.0
(20 416)13.0
(279 993)12.7
(152 734)12.8 Fe2O3 4.6
(161 127)3.9
(212 004)4.3
(138 629)3.6
(14 003)3.0
(10 841)3.7
(266 908)5.0
(20 636)4.9
(255 126)4.4
(161 711)4.3 Na2O 1.2
(159 092)0.2
(194 733)1.7
(138 823)1.7
(14 061)1.4
(10 850)2.4
(268 468)1.7
(20 634)0.4
(255 372)1.6
(160 931)1.3 K2O 2.5
(162 025)2.0
(220 658)2.3
(136 950)2.4
(14 066)2.0
(10 867)2.6
(268 642)2.5
(20 501)2.2
(279 300)2.3
(156 998)2.4 CaO 1.7
(140 633)0.2
(187 976)3.5
(132 237)6.6
(12 631)10.6
(10 876)2.3
(256 408)1.4
(18 000)0.6
(230 023)2.5
(160 562)1.3 MgO 1.4
(152 676)0.5
(215 372)1.7
(133 912)2.1
(13 098)2.1
(9 284)1.2
(260 081)1.1
(19 103)1.2
(265 702)1.7
(158 422)1.2 注:Ag、Au、Cd、Hg含量单位为n×10-9;氧化物含量单位为n×10-2;其余元素含量单位为n×10-6.( )中为样品数.1.滇藏造山系;2.华南-右江造山带;3.昆仑-祁连-秦岭造山系;4.南天山造山带;5.塔里木准地台;6.天山-兴安造山系;7.喜马拉雅造山带;8.扬子准地台;9.中朝准地台.全国背景值来自本文(下同). 表 3 各构造单元水系沉积物39种元素RCC值
Table 3. Regional concentration coefficient (RCC) values of 39 elements in stream sediments of different geo-units of China
元素 滇藏造山系 华南-右江造山带 昆仑-祁连-秦岭造山系 南天山造山带 塔里木准地台 天山-兴安造山系 喜马拉雅造山带 扬子准地台 中朝准地台 Ag 0.97 1.07 0.90 0.87 0.87 0.90 0.91 1.09 1.06 As 1.56 0.95 1.11 0.76 0.63 0.83 1.70 1.13 0.91 Au 1.00 1.00 1.09 1.00 0.73 0.82 1.18 1.18 1.03 B 1.39 1.24 0.98 0.68 0.58 0.50 1.60 1.45 0.98 Ba 0.87 0.68 1.08 1.20 1.07 1.20 0.84 0.84 1.18 Be 1.10 1.00 1.00 0.85 0.70 0.95 1.28 1.05 1.00 Bi 1.04 1.52 1.04 0.78 0.63 0.78 1.37 1.11 0.78 Cd 1.36 1.18 1.00 0.91 1.00 0.73 1.00 1.59 0.88 Co 1.04 0.88 1.01 0.78 0.66 0.79 1.15 1.24 1.07 Cr 1.07 0.77 1.05 0.73 0.62 0.68 1.01 1.26 1.19 Cu 1.01 0.83 1.09 0.98 0.90 0.81 1.18 1.24 1.08 F 1.12 0.88 1.11 0.98 0.85 0.84 0.98 1.09 1.09 Hg 0.85 2.50 0.65 0.50 0.42 0.48 0.58 2.04 0.85 La 1.00 1.16 0.97 0.79 0.82 0.79 0.98 1.07 1.07 Li 1.26 1.01 0.96 0.73 0.68 0.71 1.39 1.20 0.96 Mn 0.97 0.82 1.01 0.89 0.76 0.97 0.96 1.21 1.04 Mo 0.86 1.29 0.84 1.17 1.10 1.19 0.94 1.03 0.86 Nb 0.98 1.31 0.94 0.73 0.69 0.74 1.06 1.17 1.04 Ni 1.16 0.70 1.12 0.81 0.73 0.68 1.28 1.34 1.17 P 1.12 0.74 1.06 0.96 0.84 1.00 1.08 1.02 1.17 Pb 0.98 1.46 0.96 0.65 0.64 0.80 1.15 1.15 0.97 Sb 1.36 1.13 1.18 0.76 0.60 0.73 1.38 1.45 0.91 Sn 1.11 1.41 0.96 0.54 0.51 0.74 1.09 1.15 0.96 Sr 0.97 0.32 1.36 1.84 2.05 1.67 1.16 0.51 1.47 Th 1.01 1.33 0.94 0.75 0.66 0.82 1.14 1.12 0.95 Ti 0.94 1.03 0.93 0.71 0.59 0.80 1.05 1.17 1.06 U 1.03 1.43 0.90 0.84 0.81 0.81 0.77 1.25 0.84 V 1.02 0.89 0.99 0.74 0.61 0.82 1.17 1.19 1.08 W 1.06 1.63 1.00 0.62 0.53 0.71 1.34 1.06 0.94 Y 1.02 1.11 1.00 0.79 0.71 0.91 1.12 1.08 0.98 Zn 1.09 1.01 0.98 0.85 0.71 0.84 1.10 1.18 0.95 Zr 0.90 1.35 0.86 0.58 0.52 0.70 0.91 1.15 1.12 SiO2 0.99 1.06 0.97 0.87 0.85 1.01 1.03 1.01 0.93 Al2O3 0.97 1.04 0.96 0.86 0.70 1.01 1.01 1.02 0.99 Fe2O3 1.07 0.90 1.00 0.83 0.69 0.86 1.17 1.14 1.01 Na2O 0.94 0.14 1.37 1.34 1.11 1.93 1.35 0.32 1.29 K2O 1.06 0.85 0.99 1.00 0.85 1.10 1.06 0.92 0.99 CaO 1.30 0.17 2.63 5.00 8.08 1.73 1.05 0.44 1.91 MgO 1.16 0.43 1.44 1.74 1.74 1.03 0.95 1.01 1.42 RCC.某单元某元素背景值/该元素全国背景值. 附表2 不同景观区水系沉积物39种元素背景值
附表2. Average background values of 39 elements in stream sediments of different landscapes of China
元素 景观区 全国背景值 1 2 3 4 5 6 7 8 9 10 11 12 Ag 60
(64 164)82
(16 343)74
(517 343)51
(125 727)54
(23 347)62
(175 103)73
(57 257)68
(32 715)70
(45 882)82
(106 793)70
(90 497)65
(7 518)69 As 6
(59 731)9
(16 969)7
(512 716)6
(124 499)13
(22 209)10
(169 571)13
(56 716)10
(39 213)6
(43 194)7
(102 928)14
(90 497)11
(7 422)8 Au 0.7
(64 490)1.3
(16 097)1.2
(515 086)1.0
(124 335)0.9
(23 026)1.1
(170 603)1.2
(57 545)1.3
(38 522)1.2
(45 703)0.9
(105 142)1.2
(91 143)1.0
(7 364)1.1 B 18
(64 286)59
(16 704)48
(532 503)20
(126 335)39
(22 969)45
(176 817)54
(61 985)46
(39 796)46
(47 408)18
(98 462)68
(95 546)52
(6 750)41 Ba 589
(65 669)493
(16 671)457
(528 525)578
(127 632)368
(23 275)463
(175 995)410
(61 414)498
(37 488)334
(47 561)615
(98 767)279
(94 341)450
(7 594)474 Be 2.1
(66 638)2.1
(16 402)2.1
(524 967)1.6
(127 855)1.6
(23 688)2.0
(175 306)2.3
(60 808)1.7
(40 072)1.9
(47 597)2.4
(98 382)2.0
(96 374)2.1
(7 578)2.0 Bi 0.2
(63 319)0.3
(15 242)0.3
(504 080)0.2
(122 970)0.2
(23 199)0.3
(173 506)0.3
(56 725)0.3
(32 600)0.2
(44 178)0.2
(97 959)0.4
(91 833)0.2
(7 713)0.3 Cd 62.00
(65 690)100.00
(15 319)130.00
(494 173)80.00
(123 860)113.00
(22 215)120.00
(172 477)150.00
(56 761)110.00
(32 996)93.00
(43 337)80.00
(95 068)210.00
(74 134)140.00
(7 427)110.00 Co 6
(65 407)13
(16 832)12
(522 620)8
(128 924)8
(23 826)11
(179 781)13
(60 106)11
(39 856)11
(45 355)11
(96 690)15
(94 903)11
(7 719)11 Cr 26
(65 453)64
(16 860)62
(523 233)33
(126 581)36
(22 584)52
(175 446)62
(58 606)63
(39 959)51
(43 902)45
(97 615)66
(90 022)58
(7 691)54 Cu 11
(65 652)21
(16 842)21
(511 139)17
(128 081)15
(23 522)21
(177 819)23
(58 473)22
(39 700)19
(44 833)15
(109 704)26
(91 620)18
(7 703)20 F 326
(65 507)476
(16 776)478
(531 914)366
(128 627)360
(23 772)491
(180 310)543
(61 931)513
(39 495)414
(47 644)440
(98 414)520
(92 940)472
(7 704)460 Hg 11
(64 411)48
(15 102)42
(491 829)10
(120 470)17
(21 654)15
(167 659)27
(55 262)16
(37 327)34
(43 301)29
(108 007)95
(84 727)29
(6 748)26 La 28
(65 210)40
(16 778)40
(529 796)25
(129 242)25
(23 956)34
(178 977)39
(61 027)34
(40 086)35
(46 439)39
(99 845)40
(90 373)35
(7 719)36 Li 22
(64 822)34
(16 511)33
(505 638)16
(129 154)30
(23 372)31
(178 334)37
(61 738)28
(33 439)27
(47 669)29
(100 751)37
(92 431)36
(7 606)30 Mn 439
(66 755)610
(16 749)640
(529 522)531
(129 757)451
(22 892)604
(178 861)689
(60 767)593
(39 882)645
(46 330)776
(96 064)818
(93 187)538
(7 544)622 Mo 0.7
(64 809)0.7
(16 046)0.7
(502 397)0.7
(126 001)0.5
(23 180)0.7
(171 999)0.7
(58 105)0.6
(37 208)0.6
(44 954)1.1
(93 810)1.1
(90 223)0.5
(7 392)0.7 Nb 11
(65 526)17
(16 326)17
(509 683)9
(128 793)9
(24 004)13
(179 355)16
(60 263)14
(40 045)15
(45 693)14
(98 055)18
(94 278)14
(7 710)15 Ni 11
(64 182)26
(16 858)25
(527 226)14
(126 031)19
(22 989)23
(174 583)28
(58 712)27
(39 783)21
(44 160)16
(96 031)29
(94 544)25
(7 676)22 P 338
(63 409)508
(16 391)521
(525 666)483
(125 942)376
(23 937)562
(178 198)671
(60 616)601
(39 674)458
(46 727)802
(99 172)539
(90 942)724
(7 604)535 Pb 17
(66 058)24
(15 719)25
(516 165)14
(128 689)18
(22 926)20
(176 769)25
(57 814)20
(37 774)25
(46 332)22
(106 951)28
(92 776)19
(7 618)22 Sb 0.4
(62 129)0.7
(16 155)0.6
(493 747)0.4
(122 026)0.8
(22 173)0.7
(170 275)0.8
(56 118)0.7
(35 763)0.4
(40 531)0.4
(104 964)1.4
(78 860)0.7
(7 198)0.6 Sn 2.0
(64 492)3.1
(13 812)3.1
(476 894)1.7
(125 889)1.8
(22 929)2.5
(176 799)3.2
(58 585)2.4
(26 065)3.1
(45 079)2.6
(98 954)3.0
(92 583)3.1
(7 611)2.7 Sr 180
(63 721)110
(16 691)83
(519 754)255
(127 816)175
(23 349)168
(174 769)105
(57 646)200
(38 704)53
(45 230)198
(96 576)53
(92 558)130
(7 103)129 Th 10.0
(66 650)12.3
(15 258)11.9
(498 214)8.0
(128 405)8.1
(23 135)10.2
(178 700)12.5
(59 685)10.3
(30 028)11.3
(43 953)10.0
(99 980)14.7
(95 638)11.2
(7 794)11.0 Ti 2 244
(65 667)4 444
(16 566)4 222
(509 763)2 590
(128 658)2 078
(24 068)3 438
(180 461)3 940
(59 844)3 650
(38 695)4 093
(44 216)4 234
(99 686)4 810
(90 280)3 727
(7 708)3 881 U 1.7
(63 871)2.6
(15 287)2.6
(479 137)1.6
(126 259)1.9
(22 978)2.0
(173 488)2.4
(55 934)1.9
(26 690)2.3
(42 929)2.4
(96 667)3.0
(91 060)2.3
(7 542)2.2 V 44
(66 152)83
(16 759)81
(516 719)54
(129 642)44
(23 750)71
(179 714)90
(60 999)75
(39 970)75
(46 431)73
(99 311)99
(93 388)70
(7 715)75 W 1.2
(65 644)1.8
(14 705)1.8
(504 004)0.9
(124 839)1.1
(22 758)1.6
(171 241)1.9
(56 398)1.6
(38 394)1.7
(44 930)1.5
(98 912)1.7
(87 583)1.6
(7 648)1.6 Y 20
(67 475)24
(16 491)25
(525 487)20
(128 313)16
(18 816)23
(171 164)24
(59 222)22
(39 451)23
(46 461)23
(99 666)28
(87 019)25
(7 728)24 Zn 45
(66 623)62
(16 999)70
(535 277)46
(130 332)48
(23 656)64
(180 171)77
(60 091)59
(39 897)60
(46 550)70
(110 641)83
(85 821)67
(7 661)65 Zr 187
(67 748)300
(16 444)291
(522 477)138
(126 716)141
(23 754)198
(180 417)223
(60 555)239
(40 150)286
(42 517)229
(99 655)302
(96 731)261
(7 605)248 SiO2 71.1
(66 369)66.5
(15 512)65.6
(514 946)66.0
(125 000)68.0
(22 418)64.3
(173 324)63.4
(61 806)60.0
(35 511)68.4
(48 769)62.7
(100 340)67.7
(97 064)66.6
(7 665)65.5 Al2O3 12.4
(66 744)12.9
(16 777)13.1
(540 953)12.0
(122 199)8.7
(23 903)12.0
(176 453)13.2
(61 747)11.2
(35 679)13.8
(48 867)14.4
(99 454)12.8
(96 955)12.6
(7 396)12.8 Fe2O3 2.8
(66 634)4.4
(16 901)4.4
(522 808)3.3
(130 031)3.0
(24 045)4.2
(181 467)5.1
(61 536)4.1
(40 210)4.4
(45 809)4.7
(99 338)5.0
(94 854)4.2
(7 662)4.3 Na2O 2.2
(68 538)1.0
(16 746)0.7
(536 299)2.8
(130 170)1.2
(24 003)1.7
(182 167)1.0
(62 066)1.5
(38 577)0.3
(42 123)2.2
(99 602)0.2
(87 481)1.7
(7 747)1.3 K2O 3.0
(68 529)2.2
(16 549)2.3
(539 974)2.3
(129 436)1.7
(24 132)2.4
(179 647)2.6
(62 812)2.2
(39 590)2.3
(48 694)2.7
(101 070)1.7
(96 936)2.4
(7 704)2.4 CaO 1.4
(63 364)1.0
(16 357)0.8
(487 292)3.9
(121 916)4.7
(21 512)3.5
(168 093)1.3
(53 716)5.7
(38 427)0.3
(41 547)1.3
(97 738)0.4
(83 378)1.0
(6 656)1.3 MgO 0.6
(64 791)1.1
(16 678)1.1
(531 789)1.6
(125 008)1.2
(23 288)1.6
(173 714)1.4
(57 834)2.0
(38 168)0.8
(47 210)1.1
(98 744)0.8
(91 531)1.4
(7 669)1.2 注:Ag、Au、Cd、Hg含量单位为n×10-9;氧化物含量单位为n×10-2;其余元素含量单位为n×10-6.( )中为样品数;1.半荒漠景观区;2.冲积平原景观区;3.低山丘陵景观区;4.干旱荒漠景观区;5.高寒湖沼丘陵景观区;6.高寒山区景观区;7.高山峡谷景观区;8.黄土覆盖景观区;9.热带雨林景观区;10.森林沼泽景观区;11.岩溶景观区;12.沼泽盆地景观区. 表 4 不同景观区水系沉积物39种元素RCC值
Table 4. Regional concentration coefficient (RCC) values of 39 elements in stream sediments of different landscapes of China
元素 RCC1 RCC2 RCC3 RCC4 RCC5 RCC6 RCC7 RCC8 RCC9 RCC10 RCC11 RCC12 Ag 0.87 1.19 1.07 0.74 0.78 0.90 1.06 0.99 1.01 1.19 1.01 0.94 As 0.80 1.17 0.92 0.69 1.64 1.28 1.59 1.23 0.69 0.91 1.74 1.31 Au 0.64 1.18 1.09 0.91 0.82 1.00 1.10 1.18 1.09 0.82 1.05 0.89 B 0.44 1.44 1.17 0.49 0.96 1.10 1.32 1.11 1.12 0.44 1.66 1.27 Ba 1.24 1.04 0.96 1.22 0.78 0.98 0.86 1.05 0.70 1.30 0.59 0.95 Be 1.05 1.03 1.05 0.80 0.79 1.00 1.15 0.86 0.95 1.21 1.00 1.05 Bi 0.63 1.15 1.11 0.70 0.81 1.00 1.26 1.04 0.85 0.89 1.48 0.85 Cd 0.56 0.91 1.18 0.73 1.03 1.09 1.36 1.00 0.85 0.73 1.91 1.27 Co 0.52 1.12 1.10 0.69 0.71 0.95 1.18 0.96 1.00 0.99 1.33 0.96 Cr 0.48 1.17 1.13 0.60 0.66 0.95 1.14 1.15 0.94 0.83 1.22 1.07 Cu 0.54 1.08 1.07 0.84 0.76 1.05 1.19 1.10 0.95 0.76 1.33 0.91 F 0.71 1.03 1.04 0.80 0.78 1.07 1.18 1.12 0.90 0.96 1.13 1.03 Hg 0.44 1.85 1.62 0.38 0.65 0.58 1.04 0.62 1.31 1.12 3.65 1.12 La 0.77 1.11 1.10 0.70 0.69 0.93 1.07 0.94 0.97 1.07 1.10 0.97 Li 0.72 1.13 1.10 0.53 1.00 1.02 1.23 0.93 0.90 0.95 1.23 1.21 Mn 0.71 0.98 1.03 0.85 0.73 0.97 1.11 0.95 1.04 1.25 1.32 0.86 Mo 1.03 1.00 1.00 1.03 0.71 0.93 1.00 0.86 0.86 1.63 1.54 0.76 Nb 0.74 1.17 1.15 0.62 0.61 0.88 1.09 0.94 1.05 0.97 1.24 0.96 Ni 0.48 1.17 1.13 0.64 0.84 1.02 1.27 1.21 0.95 0.70 1.31 1.12 P 0.63 0.95 0.97 0.90 0.70 1.05 1.25 1.12 0.86 1.50 1.01 1.35 Pb 0.79 1.11 1.13 0.66 0.83 0.90 1.13 0.94 1.15 1.01 1.29 0.88 Sb 0.75 1.25 1.04 0.69 1.38 1.20 1.45 1.33 0.73 0.67 2.55 1.27 Sn 0.74 1.15 1.15 0.63 0.67 0.92 1.19 0.89 1.15 0.96 1.11 1.14 Sr 1.40 0.85 0.64 1.97 1.36 1.31 0.81 1.55 0.41 1.53 0.41 1.01 Th 0.91 1.12 1.09 0.73 0.74 0.93 1.14 0.94 1.03 0.91 1.34 1.02 Ti 0.58 1.15 1.09 0.67 0.54 0.89 1.02 0.94 1.05 1.09 1.24 0.96 U 0.74 1.17 1.17 0.72 0.85 0.90 1.09 0.85 1.03 1.08 1.35 1.03 V 0.59 1.10 1.08 0.72 0.59 0.95 1.19 1.00 0.99 0.97 1.31 0.92 W 0.73 1.13 1.13 0.54 0.71 0.97 1.19 1.00 1.06 0.96 1.06 1.00 Y 0.85 1.02 1.06 0.85 0.66 0.98 1.04 0.94 0.96 0.97 1.19 1.08 Zn 0.68 0.95 1.07 0.70 0.73 0.97 1.18 0.89 0.91 1.07 1.27 1.02 Zr 0.75 1.21 1.17 0.56 0.57 0.80 0.90 0.96 1.15 0.92 1.22 1.05 SiO2 1.08 1.02 1.00 1.01 1.04 0.98 0.97 0.92 1.04 0.96 1.03 1.02 Al2O3 0.97 1.01 1.02 0.94 0.68 0.94 1.03 0.88 1.08 1.13 1.00 0.98 Fe2O3 0.66 1.03 1.03 0.76 0.69 0.98 1.19 0.95 1.02 1.08 1.17 0.97 Na2O 1.76 0.82 0.57 2.22 0.95 1.32 0.82 1.21 0.24 1.71 0.15 1.37 K2O 1.29 0.95 0.98 0.99 0.74 1.02 1.12 0.94 0.98 1.14 0.73 1.02 CaO 1.05 0.76 0.57 2.99 3.56 2.64 0.99 4.35 0.23 0.97 0.34 0.74 MgO 0.53 0.89 0.94 1.30 0.97 1.32 1.17 1.67 0.67 0.95 0.67 1.16 RCC.某景观区某元素背景值/该元素全国背景值.RCC1.半荒漠景观区区域浓集系数;RCC2.冲积平原景观区区域浓集系数;RCC3.低山丘陵景观区区域浓集系数;RCC4.干旱荒漠景观区区域浓集系数;RCC5.高寒湖沼丘陵景观区区域浓集系数;RCC6.高寒山区景观区区域浓集系数;RCC7.高山峡谷景观区区域浓集系数;RCC8.黄土覆盖景观区区域浓集系数;RCC9.热带雨林景观区区域浓集系数;RCC10.森林沼泽景观区区域浓集系数;RCC11.岩溶景观区区域浓集系数;RCC12.沼泽盆地景观区区域浓集系数. 附表3 不同成矿带水系沉积物39种元素背景值
附表3. Average background values of 39 elements in stream sediments of different ore zones of China
元素 成矿带 全国背景值 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 Ag 50
(476)78
(36 135)70
(80 761)56
(9 413)62
(15 700)69
(40 503)120
(26 146)71
(33 748)55
(25 961)79
(34 702)73
(33 050)55
(76 124)90
(21 849)56
(5 743)77
(88 063)61
(18 900)70
(11 523)85
(16 688)60
(20 748)69 As 16
(447)6
(33 993)7
(78 492)9
(9 363)11
(15 189)8
(42 730)6
(26 254)12
(33 650)9
(25 045)12
(35 097)11
(32 739)6
(74 237)3
(21 391)9
(5 540)12
(86 822)11
(20 078)9
(12 424)9
(16 650)8
(20 860)8 Au 0.9
(484)1.5
(37 041)0.9
(82 667)1.1
(9 370)1.0
(15 133)1.1
(40 607)0.8
(25 679)1.2
(34 053)1.3
(25 218)1.2
(35 015)1.3
(32 529)1.0
(74 305)0.9
(21 689)1.0
(5 665)1.3
(89 415)1.1
(19 858)1.3
(11 612)1.6
(16 748)0.8
(20 256)1.1 B 45
(450)48
(38 410)16
(81 079)31
(9 683)37
(16 409)46
(41 891)35
(25 600)63
(35 345)32
(25 928)65
(37 115)54
(28 614)19
(76 348)21
(21 730)35
(5 646)56
(93 808)71
(19 840)45
(12 208)69
(18 083)28
(21 348)41 Ba 323
(484)360
(37 369)644
(81 720)500
(9 586)425
(16 302)517
(40 298)602
(25 896)302
(35 704)536
(25 614)301
(36 068)498
(34 512)575
(76 545)440
(22 494)473
(5 597)390
(93 142)446
(18 710)550
(12 058)465
(16 936)478
(21 720)474 Be 2.0
(488)2.2
(38 190)2.5
(82 436)2.0
(9 634)2.4
(16 048)1.9
(42 072)2.1
(26 106)2.0
(31 900)1.7
(26 232)1.7
(36 840)2.1
(34 803)1.6
(74 619)2.5
(21 755)2.0
(5 788)2.0
(93 474)2.2
(20 582)2.2
(11 817)1.9
(17 445)1.7
(21 428)2.0 Bi 0.3
(481)0.3
(37 102)0.2
(80 793)0.3
(8 998)0.3
(15 385)0.2
(39 492)0.3
(26 267)0.5
(29 672)0.3
(25 698)0.4
(35 609)0.3
(34 467)0.2
(73 598)0.4
(20 821)0.3
(5 544)0.3
(88 930)0.4
(20 649)0.3
(10 565)0.3
(16 589)0.2
(21 185)0.3 Cd 97.00
(478)200.00
(32 531)70.00
(79 328)120.00
(9 187)110.00
(14 994)110.00
(40 108)120.00
(26 305)170.00
(32 517)103.00
(25 240)140.00
(30 904)112.00
(33 124)90.00
(74 369)140.00
(21 524)110.00
(5 241)150.00
(87 384)234.00
(17 476)90.00
(11 702)120.00
(15 585)90.00
(20 980)110.00 Co 6
(485)21
(38 851)9
(81 135)8
(9 590)9
(16 323)12
(41 253)14
(27 124)11
(36 451)11
(25 954)11
(37 073)12
(35 290)8
(77 896)9
(22 401)10
(5 730)13
(91 963)14
(20 554)15
(12 394)13
(17 955)12
(21 578)11 Cr 55
(478)84
(36 595)28
(83 190)37
(9 362)38
(16 199)66
(38 741)70
(26 439)49
(36 209)63
(24 737)56
(35 579)61
(35 125)33
(76 561)31
(23 037)43
(5 529)60
(89 789)74
(20 115)68
(12 212)64
(17 655)35
(20 873)54 Cu 13
(487)43
(38 789)11
(84 971)16
(9 365)15
(15 940)22
(39 869)22
(26 673)21
(35 508)23
(25 813)21
(36 657)23
(35 059)17
(77 439)12
(22 583)20
(5 748)23
(89 479)26
(19 970)22
(12 004)23
(17 394)30
(21 508)20 F 309
(477)504
(35 710)412
(81 083)480
(9 529)437
(16 249)551
(41 109)500
(27 246)460
(35 091)513
(26 178)404
(36 258)530
(35 219)370
(77 668)374
(22 531)505
(5 730)510
(94 679)700
(19 213)547
(12 150)380
(17 117)430
(21 521)460 Hg 18
(442)39
(34 877)16
(83 802)11
(8 836)10
(14 549)21
(38 083)38
(25 811)72
(34 114)14
(23 951)70
(34 930)34
(33 070)10
(72 334)57
(21 921)11
(5 195)30
(85 684)69
(19 176)20
(10 677)59
(16 802)13
(20 525)26 La 22
(488)41
(37 526)35
(82 749)31
(9 478)36
(16 049)39
(41 597)48
(26 312)40
(34 924)33
(26 308)38
(36 243)38
(35 367)26
(77 838)52
(22 603)30
(5 654)36
(92 743)37
(20 336)39
(12 094)41
(17 580)25
(21 616)36 Li 32
(458)32
(37 671)26
(83 316)26
(9 649)33
(16 408)30
(34 619)31
(11 185)36
(35 146)23
(26 067)36
(36 957)35
(35 224)16
(78 151)31
(22 249)26
(5 682)34
(94 504)41
(19 436)31
(12 312)33
(17 759)21
(21 617)30 Mn 285
(484)945
(38 377)607
(79 748)495
(9 611)546
(16 287)639
(40 993)849
(26 857)490
(34 415)627
(25 960)504
(35 472)639
(35 240)519
(78 162)510
(22 700)608
(5 736)684
(92 087)814
(20 383)764
(12 369)623
(17 606)822
(21 540)622 Mo 0.4
(479)0.9
(36 760)1.1
(78 140)0.7
(9 370)0.6
(14 754)0.6
(40 584)0.8
(25 631)0.9
(33 939)0.6
(24 795)0.8
(34 047)0.5
(32 227)0.8
(75 289)0.9
(21 742)0.7
(5 624)0.7
(90 191)0.9
(17 828)0.7
(11 615)0.7
(16 249)1.0
(21 331)0.7 Nb 8
(487)21
(38 559)12
(82 579)12
(9 549)14
(16 304)15
(41 269)17
(25 393)18
(34 336)12
(26 075)17
(36 620)14
(34 477)9
(77 619)23
(22 653)11
(5 768)15
(92 637)17
(20 556)17
(11 030)18
(17 445)10
(21 413)15 Ni 21
(482)39
(38 553)11
(81 554)17
(9 430)17
(15 961)28
(40 198)26
(26 436)21
(34 925)26
(24 685)23
(35 515)27
(35 017)14
(76 743)12
(22 724)21
(5 543)27
(89 800)33
(20 180)27
(12 244)26
(17 960)19
(21 030)22 P 306
(481)775
(37 795)530
(79 919)478
(9 658)536
(16 005)641
(40 324)981
(27 052)440
(36 452)522
(26 264)434
(36 907)640
(35 194)479
(76 831)395
(23 048)576
(5 769)597
(92 949)528
(19 248)624
(12 042)470
(17 776)855
(20 953)535 Pb 19
(490)24
(35 069)21
(83 431)19
(9 475)23
(15 679)21
(41 368)24
(26 492)31
(34 921)19
(25 946)25
(35 544)23
(35 473)15
(77 207)39
(22 461)18
(5 490)23
(89 089)26
(20 152)25
(11 799)25
(17 468)13
(21 392)22 Sb 0.9
(453)0.6
(32 991)0.4
(79 947)0.6
(9 211)0.6
(16 039)0.6
(40 520)0.4
(25 261)1.1
(32 640)0.7
(24 818)1.1
(33 926)0.9
(32 744)0.4
(72 257)0.2
(20 886)0.6
(5 297)0.8
(84 549)1.0
(19 770)0.7
(10 767)0.7
(16 280)0.4
(20 760)0.6 Sn 1.9
(466)3.5
(37 550)2.3
(82 199)2.3
(9 271)2.7
(16 010)2.5
(20 991)3.0
(26 177)3.9
(29 760)2.2
(25 956)3.3
(35 334)2.9
(34 758)1.7
(75 763)5.0
(21 381)2.0
(5 690)2.9
(87 818)3.0
(20 520)2.9
(10 875)3.6
(16 927)1.7
(21 051)2.7 Sr 198
(470)70
(36 065)195
(80 162)212
(9 549)170
(15 881)176
(39 946)190
(26 104)37
(35 444)175
(25 574)45
(36 454)167
(33 997)251
(76 011)42
(22 390)241
(5 518)92
(91 227)64
(18 357)145
(11 685)76
(17 225)283
(21 471)129 Th 8.7
(484)11.3
(38 081)10.0
(83 082)8.8
(9 510)12.6
(15 881)11.0
(36 242)11.5
(24 925)13.3
(30 485)10.1
(26 399)12.7
(35 795)10.6
(33 393)8.4
(77 835)17.7
(21 850)8.9
(5 612)10.9
(89 629)13.2
(20 648)11.4
(10 154)12.9
(17 362)6.6
(21 438)11.0 Ti 1 985
(485)6 544
(39 000)3 024
(83 182)2 729
(9 701)3 227
(16 793)3 990
(40 813)4 803
(26 050)3 948
(36 238)3 304
(26 289)4 307
(36 800)3 890
(33 777)2 445
(77 874)4 020
(22 878)2 726
(5 814)3 967
(91 794)4 461
(20 431)4 546
(12 199)4 901
(17 851)4 020
(21 629)3 881 U 1.7
(479)2.8
(37 396)2.3
(81 427)2.1
(9 458)2.6
(14 880)1.7
(36 153)1.9
(10 621)3.0
(29 498)1.9
(26 047)2.8
(35 721)2.0
(35 237)1.8
(76 902)3.9
(22 196)2.1
(5 572)2.2
(85 666)3.2
(19 954)2.1
(11 748)2.4
(17 023)1.9
(20 874)2.2 V 45
(482)133
(38 551)56
(82 348)53
(9 579)64
(16 031)83
(40 855)91
(27 030)74
(35 930)70
(26 079)77
(36 204)76
(34 931)52
(77 914)58
(22 934)65
(5 836)86
(93 566)97
(19 612)90
(12 296)86
(17 634)93
(21 729)75 W 1.5
(462)1.4
(37 109)1.4
(81 979)1.4
(9 182)2.4
(15 756)1.6
(42 260)1.5
(26 222)3.0
(30 893)1.4
(25 258)2.3
(35 395)1.9
(34 557)0.9
(74 816)3.0
(21 658)1.3
(5 532)1.7
(88 106)1.7
(20 666)1.8
(11 491)2.2
(16 706)0.9
(20 951)1.6 Y - 28
(37 636)21
(82 773)20
(9 598)24
(9 511)22
(41 911)24
(26 051)26
(34 706)21
(26 187)26
(35 540)25
(34 669)20
(77 899)28
(22 427)19
(5 766)23
(92 543)25
(20 339)27
(12 068)25
(17 713)24
(21 111)24 Zn 39
(486)89
(37 225)57
(85 826)51
(9 625)62
(15 953)63
(41 366)80
(26 681)67
(34 701)59
(26 431)63
(34 650)73
(35 167)45
(77 700)71
(22 451)62
(5 776)72
(92 094)80
(19 816)75
(12 266)65
(17 414)70
(21 705)65 Zr 154
(487)329
(38 646)200
(83 396)149
(9 557)224
(16 070)273
(40 591)285
(25 479)306
(35 176)169
(26 150)308
(36 269)253
(35 083)137
(77 650)370
(21 415)144
(5 805)234
(90 625)253
(20 496)286
(11 820)311
(17 496)163
(21 137)248 SiO2 65.1
(486)58.6
(39 098)66.7
(84 252)65.8
(9 426)70.2
(16 366)61.5
(36 694)60.6
(25 510)69.0
(35 124)62.7
(25 972)71.1
(37 558)63.4
(33 239)65.7
(70 307)67.3
(22 596)60.2
(5 254)63.9
(94 770)67.2
(20 217)63.1
(11 009)71.5
(18 032)61.4
(21 424)65.5 Al2O3 8.4
(487)13.2
(38 787)13.9
(83 170)11.5
(9 718)12.5
(16 441)12.8
(34 207)14.4
(25 606)12.2
(36 919)11.3
(26 167)11.9
(37 600)12.6
(33 100)11.6
(78 178)14.5
(23 516)12.1
(5 919)13.1
(95 073)12.8
(20 439)13.1
(11 048)12.0
(18 112)13.4
(16 501)12.8 Fe2O3 2.5
(479)7.0
(39 040)3.7
(83 230)3.4
(9 654)3.8
(16 374)4.6
(40 231)5.4
(27 117)4.0
(36 160)4.4
(26 326)4.1
(37 059)4.3
(34 851)3.1
(78 523)3.6
(22 845)4.1
(5 848)4.9
(93 936)4.8
(20 532)4.7
(12 309)4.4
(17 934)5.2
(21 848)4.3 Na2O 1.3
(483)0.4
(34 305)2.4
(82 890)2.1
(9 812)2.1
(16 635)1.5
(42 489)1.8
(27 058)0.1
(32 165)1.6
(26 003)0.2
(33 566)1.7
(34 477)2.6
(78 757)0.3
(22 092)2.1
(5 920)0.8
(89 377)0.4
(19 442)1.5
(12 318)0.6
(17 367)3.0
(21 855)1.3 K2O 2.1
(488)2.0
(38 775)3.1
(83 917)2.4
(9 795)2.8
(16 476)2.4
(41 698)2.6
(26 993)1.9
(36 209)2.2
(25 523)1.7
(37 301)2.3
(34 395)2.3
(79 015)2.9
(23 528)2.4
(5 905)2.4
(95 873)2.5
(20 023)2.4
(12 247)1.9
(17 371)2.3
(21 657)2.4 CaO 6.8
(484)0.8
(31 206)1.0
(77 157)5.4
(9 134)1.5
(15 150)3.8
(41 733)1.5
(26 438)0.2
(29 140)4.8
(25 459)0.2
(31 866)2.8
(32 444)4.4
(70 349)0.2
(21 779)6.2
(5 064)0.8
(73 855)0.8
(16 409)2.9
(12 291)0.5
(16 064)3.4
(21 511)1.3 MgO 1.1
(464)1.6
(37 178)0.8
(81 781)1.6
(9 369)1.1
(15 622)2.1
(41 411)1.5
(26 224)0.6
(35 820)2.4
(24 378)0.6
(36 063)1.7
(33 932)1.6
(74 981)0.5
(22 635)2.0
(5 588)1.3
(90 599)1.7
(18 553)1.8
(11 905)0.9
(17 412)2.0
(21 314)1.2 注:Ag、Au、Cd、Hg含量单位为n×10-9;氧化物含量单位为n×10-2;其余元素含量单位为n×10-6.( )中为样品数.“-”表示数据太少,没有统计意义.1.班公湖怒江成矿带;2.川滇黔相邻成矿区;3.大兴安岭成矿带;4.东昆仑成矿带;5.冈底斯成矿带;6.晋冀成矿带;7.辽东吉南成矿带;8.南岭成矿带;9.祁连成矿带;10.钦杭成矿带;11.秦岭成矿带;12.天山北山成矿带;13.武夷山成矿带;14.西昆仑成矿带;15.西南三江成矿带;16.湘西鄂西成矿带;17.豫西成矿带;18.长江中下游成矿带;19.准噶尔北缘成矿带. 表 5 不同成矿带水系沉积物39种元素RCC值
Table 5. Regional concentration coefficient (RCC) values of 39 elements in stream sediments of different ore zones of China
元素 成矿带 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 Ag 0.72 1.13 1.01 0.81 0.90 1.00 1.74 1.03 0.80 1.14 1.06 0.80 1.30 0.81 1.12 0.89 1.01 1.23 0.87 As 1.97 0.80 0.85 1.13 1.41 1.01 0.81 1.50 1.15 1.48 1.34 0.73 0.38 1.15 1.46 1.38 1.09 1.17 1.01 Au 0.79 1.36 0.82 1.00 0.91 1.00 0.73 1.06 1.18 1.09 1.18 0.91 0.82 0.91 1.15 1.04 1.18 1.43 0.73 B 1.10 1.17 0.39 0.75 0.90 1.12 0.85 1.53 0.78 1.59 1.31 0.47 0.51 0.84 1.37 1.73 1.10 1.67 0.67 Ba 0.68 0.76 1.36 1.05 0.90 1.09 1.27 0.64 1.13 0.64 1.05 1.21 0.93 1.00 0.82 0.94 1.16 0.98 1.01 Be 1.02 1.10 1.25 1.00 1.21 0.96 1.05 1.00 0.85 0.85 1.05 0.80 1.25 1.02 1.02 1.10 1.09 0.95 0.85 Bi 1.04 1.04 0.78 0.93 1.26 0.74 0.93 1.70 1.00 1.48 1.15 0.78 1.48 1.00 1.11 1.33 1.15 1.11 0.63 Cd 0.88 1.82 0.64 1.09 1.00 1.00 1.09 1.55 0.94 1.27 1.02 0.82 1.27 1.00 1.36 2.13 0.82 1.09 0.82 Co 0.57 1.83 0.75 0.73 0.81 1.08 1.27 0.95 1.01 1.01 1.08 0.66 0.81 0.92 1.13 1.27 1.29 1.18 1.04 Cr 1.01 1.55 0.51 0.67 0.70 1.21 1.30 0.90 1.16 1.03 1.12 0.60 0.57 0.80 1.10 1.36 1.24 1.18 0.64 Cu 0.65 2.19 0.56 0.84 0.77 1.12 1.10 1.07 1.15 1.05 1.16 0.84 0.59 1.03 1.16 1.35 1.12 1.18 1.53 F 0.67 1.10 0.90 1.04 0.95 1.20 1.09 1.00 1.12 0.88 1.15 0.80 0.81 1.10 1.11 1.52 1.19 0.83 0.93 Hg 0.69 1.50 0.62 0.42 0.38 0.81 1.46 2.77 0.54 2.69 1.31 0.38 2.19 0.42 1.15 2.65 0.77 2.27 0.50 La 0.62 1.12 0.97 0.85 0.98 1.07 1.33 1.10 0.91 1.05 1.05 0.72 1.44 0.83 0.99 1.02 1.09 1.13 0.70 Li 1.07 1.08 0.87 0.87 1.09 1.00 1.04 1.20 0.76 1.19 1.17 0.55 1.02 0.87 1.15 1.36 1.03 1.11 0.70 Mn 0.46 1.52 0.98 0.80 0.88 1.03 1.36 0.79 1.01 0.81 1.03 0.83 0.82 0.98 1.10 1.31 1.23 1.00 1.32 Mo 0.61 1.31 1.51 1.00 0.86 0.86 1.16 1.26 0.86 1.14 0.74 1.11 1.27 1.04 0.93 1.29 1.00 1.00 1.43 Nb 0.52 1.45 0.83 0.80 0.95 1.04 1.19 1.22 0.83 1.20 0.97 0.63 1.57 0.79 1.03 1.18 1.16 1.23 0.70 Ni 0.94 1.77 0.50 0.75 0.77 1.26 1.17 0.92 1.18 1.02 1.23 0.64 0.52 0.95 1.20 1.47 1.23 1.17 0.86 P 0.57 1.45 0.99 0.89 1.00 1.20 1.83 0.82 0.98 0.81 1.20 0.90 0.74 1.08 1.12 0.99 1.17 0.88 1.60 Pb 0.86 1.12 0.97 0.86 1.07 0.96 1.12 1.44 0.86 1.15 1.06 0.67 1.82 0.83 1.06 1.18 1.15 1.15 0.58 Sb 1.65 1.05 0.67 1.04 1.15 1.09 0.71 2.00 1.31 2.00 1.64 0.76 0.38 1.00 1.44 1.78 1.27 1.27 0.76 Sn 0.70 1.30 0.85 0.85 1.00 0.93 1.11 1.44 0.81 1.22 1.07 0.63 1.85 0.74 1.09 1.13 1.07 1.33 0.63 Sr 1.53 0.54 1.51 1.64 1.32 1.36 1.47 0.29 1.36 0.35 1.29 1.95 0.32 1.87 0.71 0.50 1.12 0.59 2.19 Th 0.79 1.03 0.91 0.80 1.14 1.00 1.04 1.21 0.92 1.15 0.96 0.76 1.61 0.81 0.99 1.20 1.04 1.17 0.60 Ti 0.51 1.69 0.78 0.70 0.83 1.03 1.24 1.02 0.85 1.11 1.00 0.63 1.04 0.70 1.02 1.15 1.17 1.26 1.04 U 0.78 1.26 1.01 0.94 1.17 0.76 0.87 1.35 0.85 1.26 0.90 0.81 1.75 0.94 1.00 1.43 0.92 1.08 0.85 V 0.60 1.76 0.75 0.70 0.85 1.10 1.21 0.98 0.92 1.02 1.01 0.68 0.78 0.86 1.14 1.29 1.19 1.14 1.24 W 0.92 0.88 0.88 0.88 1.47 0.99 0.95 1.88 0.84 1.44 1.18 0.58 1.88 0.81 1.06 1.06 1.11 1.38 0.58 Y - 1.19 0.88 0.87 1.04 0.94 1.04 1.11 0.91 1.11 1.04 0.85 1.20 0.80 0.99 1.05 1.14 1.06 1.02 Zn 0.60 1.36 0.87 0.78 0.95 0.96 1.22 1.03 0.91 0.96 1.11 0.69 1.09 0.96 1.10 1.22 1.15 0.99 1.07 Zr 0.62 1.33 0.81 0.60 0.90 1.10 1.15 1.23 0.68 1.24 1.02 0.55 1.49 0.58 0.94 1.02 1.15 1.25 0.66 SiO2 0.99 0.89 1.02 1.00 1.07 0.94 0.92 1.05 0.96 1.09 0.97 1.00 1.03 0.92 0.98 1.03 0.96 1.09 0.94 Al2O3 0.65 1.03 1.08 0.90 0.98 1.00 1.13 0.96 0.88 0.93 0.98 0.91 1.13 0.95 1.02 1.00 1.02 0.94 1.05 Fe2O3 0.58 1.63 0.85 0.78 0.89 1.06 1.26 0.93 1.01 0.96 1.01 0.72 0.84 0.96 1.14 1.12 1.09 1.02 1.21 Na2O 1.01 0.32 1.89 1.67 1.70 1.19 1.44 0.10 1.27 0.12 1.35 2.08 0.21 1.67 0.61 0.34 1.16 0.48 2.34 K2O 0.91 0.85 1.33 1.02 1.18 1.02 1.09 0.83 0.94 0.70 1.00 0.99 1.21 1.03 1.02 1.05 1.02 0.83 1.00 CaO 5.17 0.61 0.79 4.12 1.11 2.92 1.17 0.18 3.66 0.17 2.12 3.35 0.15 4.72 0.61 0.60 2.21 0.40 2.62 MgO 0.93 1.33 0.68 1.33 0.95 1.74 1.28 0.50 2.02 0.50 1.39 1.29 0.42 1.67 1.06 1.42 1.48 0.75 1.65 注:“-”表示数据太少,没有统计意义.1.班公湖怒江成矿带;2.川滇黔相邻成矿区;3.大兴安岭成矿带;4.东昆仑成矿带;5.冈底斯成矿带;6.晋冀成矿带;7.辽东吉南成矿带;8.南岭成矿带;9.祁连成矿带;10.钦杭成矿带;11.秦岭成矿带;12.天山北山成矿带;13.武夷山成矿带;14.西昆仑成矿带;15.西南三江成矿带;16.湘西鄂西成矿带;17.豫西成矿带;18.长江中下游成矿带;19.准噶尔北缘成矿带. -
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