朱江建,林 舸,龔貴倫,曾喬松
(1. 北京礦產(chǎn)地質(zhì)研究院,北京 100012;2. 中國科學(xué)院礦物學(xué)與成礦學(xué)重點(diǎn)實(shí)驗(yàn)室 廣州地球化學(xué)研究所,廣東廣州 510640;3. 中國人民武裝警察部隊(duì)黃金第十一支隊(duì),湖南寧鄉(xiāng) 410600)
構(gòu)造疊加暈在廣東河臺金礦的應(yīng)用
朱江建1,2,林 舸2,龔貴倫3,曾喬松2
(1. 北京礦產(chǎn)地質(zhì)研究院,北京 100012;2. 中國科學(xué)院礦物學(xué)與成礦學(xué)重點(diǎn)實(shí)驗(yàn)室 廣州地球化學(xué)研究所,廣東廣州 510640;3. 中國人民武裝警察部隊(duì)黃金第十一支隊(duì),湖南寧鄉(xiāng) 410600)
廣東河臺金礦是一個典型與韌性剪切帶有關(guān)的金礦床,也是目前粵西、桂東南已發(fā)現(xiàn)的最大的金礦床。為了給深邊部的找礦提供科學(xué)依據(jù),本文統(tǒng)計(jì)了金與其它元素的相關(guān)系數(shù),并研究了金元素與其它元素的空間分布關(guān)系。相關(guān)系數(shù)統(tǒng)計(jì)表明,Ag、Cu與金的相關(guān)系數(shù)分別為0.94、0.87,可作為本區(qū)的近礦暈指示元素;As、Sb、Ba在金高異常前緣50~300m出現(xiàn)高異常,可作為本區(qū)的前緣暈指示元素;Mn、Mo、V、Ti、W在金高異常后緣0~35m出現(xiàn)高異常,可作為本區(qū)的尾暈指示元素。由前緣暈的指示意義與本區(qū)礦體北東側(cè)伏的規(guī)律,提出礦體可能的出現(xiàn)區(qū)域。鉆探結(jié)果較好地驗(yàn)證了預(yù)測區(qū)的含礦性,指示了前緣暈元素可能對本區(qū)的找礦有較好的指示意義。
河臺金礦 構(gòu)造疊加暈 近礦暈 前緣暈 尾暈 廣東
Zhu Jiang-jian,Lin Ge, Gong Gui-lun, Zeng Qiao-song.Application of the structural superimposed halos method in the Hetai gold deposit[J]. Geology and Exploration, 2014, 50(6):1109-1117.
一些研究者在河臺金礦運(yùn)用了隱伏金礦床的遙感生物地球化學(xué)(徐瑞松等,1996)、熱釋光測量(全亞榮等,2001)、地球化學(xué)(黃棟林,2001;李兆麟等,2002)等找礦方法,并取得一定效果。然而由于勘探手段受限制,河臺金礦深部和外圍礦體的定位預(yù)測及該區(qū)隱伏礦產(chǎn)的快速綜合評價(jià)仍相對滯后,經(jīng)十幾年的開采,河臺金礦區(qū)探明的保有儲量已不足1/2,而且低級別的儲量占75%以上(劉振升,2004),目前已影響該礦山的可持續(xù)發(fā)展。鑒于河臺金礦的找礦需要,本課題組繼續(xù)在河臺金礦開展地電化學(xué)測量(夏永健等,2008;朱江建等,2011a)、EH4測量(王彪等,2009)、礦體統(tǒng)計(jì)分析預(yù)測(朱江建等,2012a)、數(shù)值模擬(朱江建等,2012b)等找礦方法,且也取得一定效果。熱液型礦床,尤其是熱液型金礦,其原生暈在垂向上往往表現(xiàn)為一定的分帶性(邵躍,1997;李惠等,2010a)。李惠等(2010a)由金礦床相同構(gòu)造部位總包含多期次的金成礦作用,將原生暈發(fā)展為構(gòu)造疊加暈,且取得較好的找礦效果(李惠等,2003,2004,2005,2006,2010b,2012,2013)。由河臺金礦多期次成礦疊加的特點(diǎn)(王鶴年等,1989;陳駿等,1993;何文武等,1993;翟偉等,2006;Zhang et al.,2001),本文也將其稱為構(gòu)造疊加暈。本文研究了河臺金礦構(gòu)造疊加暈在垂向上的分帶性,進(jìn)而對本區(qū)的找礦進(jìn)行探討。
河臺金礦位于云開大山變質(zhì)雜巖體北部、羅定-廣寧斷裂變質(zhì)帶和吳川-四會斷裂變質(zhì)帶的交匯部位(圖1左上角)。該礦北部出露震旦系局部混合巖化的石英云母片巖、石英巖等,南部出露奧陶系薄層淺變質(zhì)砂巖、粉砂巖及薄層板巖,其通過F1斷裂與震旦系呈斷層接觸。F1斷裂是礦區(qū)主要的導(dǎo)礦構(gòu)造之一,位于礦區(qū)南部,傾向北西,傾角55°~70°(李新福等,2007)。含礦構(gòu)造為糜棱巖化帶及發(fā)育于其中的脆性斷裂。導(dǎo)礦構(gòu)造與含礦構(gòu)造在剖面上為“y”字型展布(圖1右下角)。糜棱巖大體可以分為北帶、中帶和南帶。北帶距F1斷裂1500~2000m,主要由9(云西礦床)、11(高村礦床)、12、13號糜棱巖(后逕礦床)組成,它們在平面上呈左階斜列式,全長5500m,圍巖為混合巖化片巖。中帶距離F1斷裂500~1500m,主要由15、5、10、40號糜棱巖組成,全長大于9000m,圍巖為混合巖。南帶距F1斷裂500m以內(nèi),全長大于9000m,主要由36、38、58號糜棱巖組成,圍巖以混合巖化片巖為主,部分為混合巖。礦區(qū)西部出露黑云母斜長花崗巖,東部出露巨斑狀黑云母二長花崗巖(圖1)。9、11號糜棱巖帶是河臺金礦主要的含礦糜棱巖帶,其中的礦體傾向NNW,傾角70°左右,大脈狀產(chǎn)出,長一千多米,厚幾十厘米到幾十米,礦體膨大縮小明顯(往往對應(yīng)糜棱巖的膨大縮小部位),連續(xù)性差,從東向西,從上到下側(cè)列產(chǎn)出,且主要沿糜棱巖的糜棱面理分布,礦體與圍巖沒有明顯的界限。河臺金礦的富礦體在平面上表現(xiàn)為左階近等距的分布規(guī)律,剖面上也表現(xiàn)為近等距的分布規(guī)律,且有北東向側(cè)伏的規(guī)律。其中,河臺金礦云西礦床相鄰品位富集中心在側(cè)伏方向上的距離為85~179m;河臺金礦高村礦床相鄰品位富集中心在側(cè)伏方向上的距離為62~302m(朱江建等,2014)。成礦期次方面,河臺金礦可分為糜棱巖化成礦期(王鶴年等,1989;陳駿等,1993;何文武等,1993;姚德賢等,1995;翟偉等,2006;朱江建等,2011b)與熱液成礦期(王鶴年等,1989;陳駿等,1993;何文武等,1993;Zhangetal.,2001;翟偉等,2006)。其中糜棱巖化成礦期形成小于1g/t的金礦化。熱液成礦期是河臺金礦主要的成礦期,據(jù)前人研究其總體可分為金-黃鐵礦-石英階段、金-石英-多金屬硫化物階段以及金-硫化物-碳酸鹽脈階段(王鶴年等,1989;陳駿等,1993;何文武等,1993;Zhangetal.,2001;翟偉等,2006)。其中金-黃鐵礦-石英階段、金-石英-多金屬硫化物階段是河臺金礦主要的熱液成礦階段。與礦化相關(guān)的蝕變作用主要有煙灰色的硅化與細(xì)粒它形的黃鐵礦化。伴生金屬礦物主要包括黃銅礦、黃鐵礦、磁黃鐵礦、菱鐵礦、毒砂,非金屬礦物主要有石英、絹云母。
圖1 河臺金礦區(qū)地質(zhì)簡圖(據(jù)朱江建等,2011b;朱江建等,2012b,修改)Fig.1 Simplified geological map of the Hetai gold deposit, Guangdong Province, South China (modified after Zhu et al., 2011b; Zhu et al., 2012b) 1-奧陶系薄層淺變質(zhì)砂巖、粉砂巖及薄層板巖;2-震旦系局部混合巖化的石英云母片巖、石英巖;3-巨斑狀黑云母二長花崗巖;4-黑云母斜長花崗巖;5-糜棱巖化帶及其編號1-thin-bedded epimetamorphic sandstone, siltstone and thin-bedded slate of Ordovician system; 2-partial migmatited quartz-mica schist and quartzite of Sinian system; 3-macroporphyritic biotite monzonitic granite; 4-biotite plagiogranite; 5-mylonitized zones andtheir numbers
本次對河臺金礦云西礦床進(jìn)行構(gòu)造疊加暈研究。測試的樣品共67樣,其中包括39號勘探線(或其附近的37線41線)-140中段、-90中段、-40中段、10中段、60中段的24件樣品,23號勘探線-140中段、-90中段、-40中段、10中段、60中段、160中段的29個樣,以及39號勘探線鉆孔BZK3901的14個樣。測試的元素共17種,它們分別為Au、Ag、Cu、Pb、Zn、As、Sb、Ba、Co、Sn、Mn、Mo、Ni、V、Ti、Cr、W。不同位置元素的含量如表1所示。
3.1 金的地球化學(xué)性質(zhì)及在熱液礦床中的分帶
金的地球化學(xué)性質(zhì)與金的電子層結(jié)構(gòu)(其電子構(gòu)型為4f145d106s1,屬IB族),尤其是外電子層結(jié)構(gòu)密切相關(guān)(郭福祺等,1981;周茂等,1998)。研究表明,金為典型的親硫元素,這種地球化學(xué)屬性直接影響著金元素在地殼中的分布、組合和成礦。具體地說,由于金的親硫性大大地超過了其他性質(zhì)(如電負(fù)性、電離能、金屬惰性、極化性等),所以在巖漿階段的成礦過程中,不可能有大量富集。在熱液過程中,400~500℃,金可在W、Sn、Bi、Mo礦床中存在(如湖南柿竹園礦床);300~400℃,金主要與As、Fe等成分形成高溫?zé)嵋旱V床;200~300℃,金常伴隨大量的Fe、Cu、Pb、Zn等硫化物;100~200℃,金主要與Ag、Se、Te等元素伴生(郭福祺等,1981)。如上隨著溫度的降低金元素與不同元素伴生的現(xiàn)象,指示了熱液礦床由深至淺(對應(yīng)溫度由高至低)金元素與其它元素應(yīng)表現(xiàn)為一定的分帶性(郭福祺等,1981)。20世紀(jì)60年代以來,邵躍(1997)一直注意對礦床元素原生分帶的研究,并于1974年提出了一個熱液礦床元素垂直分帶序列模型。以后經(jīng)過生產(chǎn)實(shí)踐檢驗(yàn)、修改和補(bǔ)充,最后獲得原生暈從下而上的分帶如下:Cr-Ni(Co1,Cu1)-Ti-V-P-Nb-Be-Fe-Sn-W1-Zn1-Ga-In-Mo-Re-Co2(Au1、As1)-Bi-Cu2-Ag-Zn2-Cd-Pb-W2-Au2-As2-Sb-Hg-Ba-Sr。
表1 不同剖面從上到下各元素含量變化對比表Table 1 Element contents fromupper to lower indifferent sections
續(xù)表1
Continued Table 1
位置分析元素AuAgCuPbZnAsSbBaCoSnMnMoNiVTiCrW23線60中段0.0861.60<10022.7614.30.52<24.0<2.60.3100<0.2<2.619.1443<2.3<0.20.19<1.53<10046.1614.080.60112<2.66.53050.36.438.12286101.70.39<1.5355041.6132.024.77<24.0<2.61.1114<0.2<2.628.67605.50.22.56<1.5358054155.841.05<24.0<2.60.799<0.2<2.628.26734.6<0.20.14<1.53<10037.9174.230.44<24.0<2.60.578<0.2<2.622.9754<2.3<0.223線10中段0.22<1.53<10034.662.140.19<24.0<2.60.4149<0.2<2.615.5377<2.3<0.20.15<1.53<10022.339.120.76<24.0<2.60.581<0.2<2.618.7324<2.3<0.20.086<1.53<1003232.520.44<24.0<2.62.5178<0.23.217.53896.10.323線-40中段0.14<1.53<10025.9533.30.36<24.0<2.6<0.370<0.23.222386<2.3<0.22.126.26730019.5604.742.3247<2.62.1197<0.29.252.31869180.70.671.86130017.6<3.01.100.14<24.0<2.60.7120<0.25.232.26434.3<0.20.773.34320017.633.230.84<24.0<2.60.387<0.2<2.622.4372<2.3<0.20.32<1.53<10031.138.033.78<24.0<2.6<0.380<0.2<2.618.8430<2.3<0.22.725.93420018.7519.72.37<24.0<2.6<0.373<0.2<2.622.1443<2.3<0.20.17<1.53<10017.91514.90.56<24.0<2.60.6142<0.2<2.621.1682<2.30.30.28<1.53<10051.83411.51.08324.13.9150<0.25.356.792990.223線-90中段0.31<1.53<10025.2104.110.20<24.0<2.60.9158<0.23.223.6575<2.3<0.21.47<1.53<10039.3<3.01.690.26<24.0<2.60.5183<0.23.228.56934.6<0.20.41<1.5311022.5442.40.2834<2.61.6189<0.2629.16018.2<0.223線-140中段0.34<1.5312034.252.000.10<24.0<2.60.448<0.2<2.69.5293<2.3<0.20.11<1.53<10034.9121.220.1533<2.63.31981.15.513.36999.215.563.90520025.2211.400.29<24.0<2.617.71560.55.646.99531310.30<1.5311021.1863.40.34<24.0<2.6<0.372<0.2<2.615537<2.3<0.20.29<1.53<10040.4185.280.18<24.0<2.61.5144<0.26.336.673710.1<0.2BZK3901-31m0.21<1.53<10028.2718.350.251075.90.316914.241.915169.50.3-164m0.089<1.53<10041.914722.00.6618293.72502.48.259.3377116.31.3-181m<0.080<1.53<10029.211421.90.5420210.15.324239.950.2323214.37-184.6m0.57<1.53<10034.45930.00.4276<2.6<0.31600.5<2.623.813863.3<0.2-189m0.53<1.53<10021.2597.440.23665.5<0.31341.11319.533348.5<0.2-197m0.32<1.53<10026.2186.060.40573<0.31170.4919.367942.7<0.2-203m0.13<1.53<10047.2617.560.251759.322350.918.132.1209590.14.8-222m2.46<1.5353052.212319.20.301275.52.82370.78.740.2268927.3<0.2-230m2.45<1.5326033.41147.360.232319.65.64950.74.266.3271420.621-235m0.11<1.53<10037.61256.420.5631711.25.73340.91054.7429127.517.1-247.77m0.084<1.53<10049.11814.90.252547.90.54850.56.433.4210814.81.2-250.7m0.16<1.53<010066.67814.80.862247.30.44270.46.335.7263614.51.5-265m0.089<1.53<10095.59636.80.232539.914841.211.965.9324224.416.2-300m<0.080<1.53<10074.17535.70.301336.50.62600.88.150.4161114.5<0.2
注:測試由中國人民武裝警察部隊(duì)黃金第十一支隊(duì)化驗(yàn)室完成,單位為×10-6。各測線各中段的不同數(shù)據(jù)代表不同樣品的品位,作各測線不同中段的元素含量圖時(shí),取其最高值,39線-90中段缺失的數(shù)據(jù)(因無法采集到樣品),用37線(靠近39線)-90中段的數(shù)據(jù)代替。
李惠等(2010a)通過對58個典型金礦床原生暈軸向分帶序列的概率統(tǒng)計(jì),得出中國金礦床的單次成礦原生暈綜合軸向(垂直)分帶序列,從上到下為:B-I-As-Hg-F-Sb-Ba(礦體前緣及上部)→Pb-Ag-Au-Zn-Cu(礦體中部)→W-Bi-Mo-Mn-Ni-Cd-Co-V-Ti(礦體下部及尾暈)。這種分帶序列與熱液型礦床總體的分帶序列一致。
3.2 河臺金礦元素分帶研究
基于熱液型金礦垂向分帶普遍的一致性,本文結(jié)合李惠等(2010a)總結(jié)的金礦床軸向分部規(guī)律探討本區(qū)的前緣暈、近礦暈、尾暈。39線與23線各中段Au、Ag、Cu、Pb、Zn測量結(jié)果表明,Au含量升高時(shí),Ag、Cu表現(xiàn)為明顯的同增長關(guān)系,而Pb、Zn可表現(xiàn)為升高、降低與基本不變(圖2、圖3)。Au與其它元素的相關(guān)系數(shù)(表2)研究表明,Au與Ag的相關(guān)系數(shù)為0.94,Au與Cu的相關(guān)系數(shù)為0.87,Au與Pb、Zn的相關(guān)系數(shù)均為-0.09。以上研究指示,Ag、Cu可作為本區(qū)的近礦暈元素。Au與Ag、Cu這種密切的伴生關(guān)系,可能源于它們均為銅族元素。
39線從上往下Au含量在-90中段明顯升高(圖2),As在其前緣100m的10中段明顯升高,Sb在其前緣50 m的-40中段及前緣150 m的60中段明顯升高(圖4);23 線從上往下Au含量在-140中段明顯升高(圖3),As在其前緣100 m的-40中段明顯升高,且往下一直呈明顯上升趨勢,Ba在其前緣300 m的160中段明顯升高,Sb在其前緣100 m的-40中段及200 m的60中段明顯升高。以上研究表明,As、Ba、Sb 在金高異常前緣50~300 m出現(xiàn)高異常,可作為本區(qū)的前緣暈指示元素。
39線鉆孔BZK3901在-230m的品位為2.45g/t(表1),Mn在其下方0~35m(230~265m)明顯高升(圖6)、Mo、V、Ti、W在其下方35 m(265 m)明顯高升(圖6、圖7)。以上研究表明,Mn、Mo、V、Ti、W在金高異常后緣0~35m出現(xiàn)高異常,可作為本區(qū)的尾暈指示元素。
圖2 39線各中段Au、Ag、Cu、Pb、Zn含量圖Fig. 2 Contents of Au,Ag,Cu,Pb and Zn in different horizons of line 39
圖3 23線各中段Au、Ag、Cu、Pb、Zn含量圖Fig. 3 Contents of Au,Ag,Cu,Pb and Zn in different horizons of line 23表2 Au與其它元素相關(guān)系數(shù)統(tǒng)計(jì)表Table 2 Correlation coefficients of Au and other elements
AuAuAgCuPbZnAsBaSbCo10.940.87-0.09-0.09-0.13-0.1-0.06-0.24(64)(14)(25)(64)(61)(64)(31)(64)(16)AuSnMnMoNiVTiNiCrW-0.03-0.030.710.04(44)0.010.11(64)0.04-0.09-0.15(56)(64)(34)(44)(64)(64)(44)(47)(36)
注:統(tǒng)計(jì)時(shí)已刪除測定范圍之內(nèi)的數(shù)據(jù),括號內(nèi)為做相關(guān)分析的組數(shù)。
圖4 39線各中段As、Ba、Sb含量圖Fig. 4 Contents of As,Ba and Sb in different horizons of line 39
圖5 23線各中段As、Ba、Sb含量圖Fig. 5 Contents of As,Ba and Sb in different horizons of line 23
圖6 39線鉆孔BZK3901不同深度Co、Sn、Mn、Mo、Ni含量圖Fig. 6 Contents of Co,Sn,Mn,Mo and Ni in different horizons of BZK3901 in line 39
圖7 39線鉆孔BZK3901不同深度V、Ti、Cr、W含量圖Fig. 7 Contents of V,Ti,Cr and W in different horizons of BZK3901 in line 39
綜上所述,河臺金礦從上往下的原生暈軸向分帶序列為:As、Sb、Ba(礦體前緣及上部)→Au、Ag、Cu(礦體中部)→Mn、Mo、V、Ti、W(礦體下部及尾暈)。
圖8 云西礦床礦體縱投影與礦體富集中心分布圖(據(jù)胡世杰,2006;朱江建等,2012a,修改)Fig.8 Vertical projection and enriched centers of orebodies in the Yunxi gold deposit (modified from Hu, 2006; Zhu et al., 2012a)1-富集中心位置及其編號;2-兩富集中心的連線縱投影的傾伏角及距離1-the positions of enriched ceters and their numbers; 2-plunge angle and distance between adjacent enriched centers
3.3 構(gòu)造疊加暈在本區(qū)的應(yīng)用效果
由As 在本區(qū)的前緣暈指示意義及23線As從10中段以下突然連續(xù)升高(圖5),而地球化學(xué)參數(shù)轉(zhuǎn)折反映深部礦體延伸還很大或深部有盲礦存在(李惠等,2011),推斷23線-140中段以下有礦體。再結(jié)合河臺金礦相鄰富集中心具有北東向側(cè)伏的規(guī)律,且傾伏角主要分布于13~34°,側(cè)伏方向的距離主要分布于216~368m(圖8),進(jìn)一步推斷礦體的富集中心分布于23線-140中段北東側(cè)的下方。
23線-140中段北東側(cè)下方的鉆孔ZK708(圖8,其位置與K點(diǎn)北東往下側(cè)伏角為13~34°,側(cè)伏方向的距離為216~368m一致)在-290m處見礦厚度為2.10m,金品位為2.44g/t的金礦體。這個鉆孔驗(yàn)證了前緣暈在本區(qū)有較好的指示意義。
相關(guān)系數(shù)統(tǒng)計(jì)表明,河臺金礦Au與Ag、Cu具有明顯的相關(guān)性(相關(guān)系數(shù)分別為0.94與0.87)而與熱液型金礦Au普遍的伴生元素Pb、Zn的相關(guān)性不明顯(相關(guān)系數(shù)均為-0.09),表明Ag、Cu可作為本區(qū)的近礦暈元素。As、Sb、Ba在金高異常前緣50~300m出現(xiàn)高異常,可作為本區(qū)的前緣暈指示元素;Mn、Mo、V、Ti、W在金高異常后緣0~35m出現(xiàn)高異常,可作為本區(qū)的尾暈指示元素。由23線As從10中段以下突然連續(xù)升高,再結(jié)合河臺金礦相鄰富集中心北東向側(cè)伏的統(tǒng)計(jì)結(jié)果,推斷存在富集中心,分布于23線-140中段北東側(cè)下方的礦體。鉆探結(jié)果較好地驗(yàn)證了預(yù)測區(qū)的含礦性,指示了前緣暈元素可能對本區(qū)的找礦有較好的指示意義。
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Application of the Structural Superimposed Halos Method in the Hetai Gold Deposit
ZHU Jiang-jian1,2, LIN Ge2, GONG Gui-lun3, ZENG Qiao-song2
(1.BeijingInstituteofGeologyforMineralResources,Beijing100012; 2.KeyLaboratoryofMineralogyandMetallogeny,GuangzhouInstituteofGeochemistry,ChineseAcademyofSciences,Guangzhou,Guangdong510640;3.The11thdepartmentofGoldArmyofChineseArmedPoliceForce,Ningxiang,Hunan410600)
The Hetai gold deposit is the largest gold deposit in western Guangdong and southeastern Guangxi,which is related to a ductile shear zone.In order to provide scientific evidence for prospecting, this work made a statistics of the correlation coefficient and spatial relationship between gold and other elements. The results show that the correlation coefficients are 0.94 and 0.87 between Ag and Au and between Cu and Au, respectively. This indicates they are central halo indicators of Au. Abnormal high values of As, Sb and Ba are about 50~300m in front of abnormal high values Au, which implies As, Sb and Ba are front halo indicators of Au. Abnormal high values of Mn, Mo, V, Ti and W are about 0~35m behind Au, indicating Mn, Mo, V, and Ti are rear halo indicators of Au. Combined with the indications of front halo indicators and pitching direction to NE, probable places of orebodies are suggested. Drilling results verify the existence of orebodies in the predicted area, indicating front halo indicators can shed light on the prospecting direction in the Hetai gold deposit.
Hetai gold deposit, structural superimposed halos, central halo indicators, front halo indicators, rear halo indicators, Guangdong Province
2014-03-13;
2014-05-20;[責(zé)任編輯]郝情情。
老礦山典型礦床成礦規(guī)律總結(jié)研究(項(xiàng)目編號:121200113086300)和國家自然科學(xué)基金項(xiàng)目:廣東河臺金礦富礦包中金的超常富集機(jī)制研究(No.41172082)資助。
朱江建(1985年-),男,2012獲中國科學(xué)院研究生院博士學(xué)位,現(xiàn)為北京礦產(chǎn)地質(zhì)研究院博士后,主要從事成礦預(yù)測與礦產(chǎn)勘查。E-mail: zjj3xsjl@163.com。
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0495-5331(2014)06-1109-09