利用连通器模型讨论岩脉与成矿作用的初步尝试——以内蒙古大井锡多金属矿床为例
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摘要
岩浆侵入体的空间几何形态是复杂多变的,若一个矿区内岩浆侵入体的源区相同,并且成矿流体也是来自相同层位,那么可以对它们的侵位过程进行简化处理。文章提出岩浆侵入体的一个物理模型——连通器,并从连通器原理推导出类似的地质模型。初步尝试利用该模型应用于大井矿床,结合前人对大井矿区岩脉和矿脉的详细研究成果和事实,对连通器的地质模型进行了初步检验。结果表明:连通器模型在大井矿区是可以适用的,如果限定模型的边界条件足够多,该模型是可以用来进行深部预测的。
The spatial geometry of magmatic intrusions is complicated and varied. However, the intruded process of magmatic intrusion can be simplified if the intrusions and ore-bearing fluids have the same source in the depth. This paper presents the physical connected-vessels model for magmatic intrusions, and derivates an analogical geologic model. The author tried to apply this model to Dajing ore deposit and test the viability on the basis of collecting previous studied achievements and the geological evidences for dikes and ore veins in Dajing ore deposit. The experimental results show that this connected vessel model can be used in Dajing ore deposit. The author believed that this model can be used to predict accurately the orebody in the depth if there are enough boundary conditions limited for this model.
The spatial geometry of magmatic intrusions is complicated and varied. However, the intruded process of magmatic intrusion can be simplified if the intrusions and ore-bearing fluids have the same source in the depth. This paper presents the physical connected-vessels model for magmatic intrusions, and derivates an analogical geologic model. The author tried to apply this model to Dajing ore deposit and test the viability on the basis of collecting previous studied achievements and the geological evidences for dikes and ore veins in Dajing ore deposit. The experimental results show that this connected vessel model can be used in Dajing ore deposit. The author believed that this model can be used to predict accurately the orebody in the depth if there are enough boundary conditions limited for this model.
引文
[1]Bachmann O,Miller CF,de Silva SL.The volcanic-plutonic connection as a stage for understanding crustal magmatism[J].Journal of Volcanology and Geothermal Research,2007,167:1-23.
[2]Baker Don R.Granitic melt viscosity and dike formation[J].Journal of Structural Geology,1998,20(9/10):1395-1404.
[3]Costa A,Melnik O,Sparks RSJ.Controls of conduit geometry and wallrock elasticity on lava dome eruptions[J].Earth and Planetary Science Letters,2007,260:137-151.
[4]LegrosFrancois,Kelfoun Karim,Marti Joan.The influence of conduit geometry on the dynamics of caldera-forming eruptions[J].Earth and Planetary Science Letters,2000,179:53-61.
[5]Melnik O,Barmin AA,Sparks RSJ.Dynamics of magma flow inside volcanic conduits with bubble overpressure buildup and gas loss through permeable magma[J].Journal of Volcanology and Geothermal Research,2005,143:53-68.
[6]王玉往,曲丽莉,王丽娟,等.大井锡多金属矿床矿化中心的探讨[J].地质与勘探,2002,38(2):23-27.
[7]李国华.大井锡—多金属矿田控矿因素及找矿方向初步探讨[J].地质与勘探,1986,4:29-30.
[8]黄世乾,林达富,晏汝逊,等.大井锡—银—铜矿床及其成因[J].地质与勘探,1986,6:28-32.
[9]李如满,康利祥.大井锡多金属成矿地质特征及找矿方向探讨[J].矿产与地质,2004,18(6):517-522.
[10]王玉往,王京彬,张安立,等.内蒙古大井矿床之找矿新类型探索[J].矿物学报,2009,增刊,566-567.
[11]王玉往,王莉娟,张会琼,等.内蒙古大井矿床之找矿新类型探索[J].矿产勘查,2010,1(1):33-38.
[12]张会琼,王京彬,王玉往,等.内蒙古大井锡多金属矿床脉岩的成矿与找矿意义[J].地质与勘探,2011,47(3):344-352.
[13]张会琼,王玉往,王京彬,等.内蒙古大井锡多金属矿床岩脉地球化学特征[J].矿物学报,2009,增刊:100-101.
[14]冯建忠,艾霞,吴俞斌,等.内蒙大井多金属矿床稳定同位素地球化学特征[J].吉林地质,1994,13(3):60-66.
[15]Johannes W,Holtz F.Petrogenesis and experimental petrology of granitic rocks[M].Berlin,Heidelberg:Springer-Verlag,1996:335.
[16]罗照华,李德东,刘翠,等.内生金属成矿作用的构造响应[J].地球科学与环境学报,2010,32(增刊):137-139.
[17]Delaney PT.Heat transfer during emplacement and cooling of mafic dykes[M]//Halls HC,Fahrig WF.Mafic Dyke Swarms.Geological Association of Canada Special Paper,1990,34:31-46.
[18]Webber KL,Simmons WB,Falster AU,et al.Cooling rates and crystallization dynamics of shallow level pegmatite-aplite dikes,San Diego County,California[J].American Mineralogist,1999,84:708-717.
[19]李德东,罗照华,周久龙,等.岩墙厚度对成矿作用的约束:以石湖金矿为例[J].地学前缘,2011,18(1):166-178.
[20]Mahon KI,Mark HT.Ascent of a granitoid diaper in a temperature varying medium[J].Journal of Geophysical Research,1988,93(B2):1174-1188.
[21]王玉往,王京彬,王莉娟.内蒙古大井锡多金属矿床锡矿物特征[J].地质与勘探,2006,42(4):51-56.
[22]Wang Y W,Wang J B,Uemoto T,et al.Geology and Mineralization at Dajing Tin-polymetalic Ore Deposit,the Inner Mongolia,China[J].Resources Geology,2011,51(4):307-320.
[23]王京彬,王玉往,王莉娟.大兴安岭南段锡多金属成矿系列[J].地质与勘探,2005,41(6):15-20.
[24]华北有色地质勘查局综合普查大队第一普查队.内蒙古自治区林西县地乡大井矿区铜锡多金属矿控矿因素和矿床成因等问题的初步研究[R].1990.
[25]廖震,王玉往,王京彬,等.内蒙古大井锡矿床岩脉LA-ICP-MS锆石U-Pb定年及其地质意义[J].岩石学报,2012,28(7):2292-2306.
[26]江思宏,梁清玲,刘翼飞,等.内蒙古大井矿区及外围岩浆岩锆石U-Pb年龄及其对成矿时间的约束[J].岩石学报,2012,28(2):4955-513.
[27]刘伟,潘小菲,谢烈文,等.大兴安岭南段林西地区花岗岩类的源岩:地壳生长的时代和方式[J].岩石学报,2007,23(2):441-460.
[28]王莉娟,王玉往,王京彬,等.大井矿床锡铜矿体成矿流体研究及其成因意义[J].岩石学报,2000,16(4):609-614.
[29]翟裕生,邓军,李晓波,著.区域成矿学[M].北京:地质出版社,1999:303.
[30]罗照华,陈必河,江秀敏,等.利用宽谱系岩墙群进行勘查靶区预测的初步尝试:以南阿拉套山为例[J].岩石学报,28(7):1949-1965.
[31]李德东,王玉往,王京彬,等.岩脉的侵位机制对成矿作用的约束——以内蒙古大井锡多金属矿床为例[J].地质与勘探,2012,48(3):538-545.
[32]王汉生.内蒙大井多金属矿床脉岩与控矿关系[J].有色矿冶,1992,(4):1-3.
[2]Baker Don R.Granitic melt viscosity and dike formation[J].Journal of Structural Geology,1998,20(9/10):1395-1404.
[3]Costa A,Melnik O,Sparks RSJ.Controls of conduit geometry and wallrock elasticity on lava dome eruptions[J].Earth and Planetary Science Letters,2007,260:137-151.
[4]LegrosFrancois,Kelfoun Karim,Marti Joan.The influence of conduit geometry on the dynamics of caldera-forming eruptions[J].Earth and Planetary Science Letters,2000,179:53-61.
[5]Melnik O,Barmin AA,Sparks RSJ.Dynamics of magma flow inside volcanic conduits with bubble overpressure buildup and gas loss through permeable magma[J].Journal of Volcanology and Geothermal Research,2005,143:53-68.
[6]王玉往,曲丽莉,王丽娟,等.大井锡多金属矿床矿化中心的探讨[J].地质与勘探,2002,38(2):23-27.
[7]李国华.大井锡—多金属矿田控矿因素及找矿方向初步探讨[J].地质与勘探,1986,4:29-30.
[8]黄世乾,林达富,晏汝逊,等.大井锡—银—铜矿床及其成因[J].地质与勘探,1986,6:28-32.
[9]李如满,康利祥.大井锡多金属成矿地质特征及找矿方向探讨[J].矿产与地质,2004,18(6):517-522.
[10]王玉往,王京彬,张安立,等.内蒙古大井矿床之找矿新类型探索[J].矿物学报,2009,增刊,566-567.
[11]王玉往,王莉娟,张会琼,等.内蒙古大井矿床之找矿新类型探索[J].矿产勘查,2010,1(1):33-38.
[12]张会琼,王京彬,王玉往,等.内蒙古大井锡多金属矿床脉岩的成矿与找矿意义[J].地质与勘探,2011,47(3):344-352.
[13]张会琼,王玉往,王京彬,等.内蒙古大井锡多金属矿床岩脉地球化学特征[J].矿物学报,2009,增刊:100-101.
[14]冯建忠,艾霞,吴俞斌,等.内蒙大井多金属矿床稳定同位素地球化学特征[J].吉林地质,1994,13(3):60-66.
[15]Johannes W,Holtz F.Petrogenesis and experimental petrology of granitic rocks[M].Berlin,Heidelberg:Springer-Verlag,1996:335.
[16]罗照华,李德东,刘翠,等.内生金属成矿作用的构造响应[J].地球科学与环境学报,2010,32(增刊):137-139.
[17]Delaney PT.Heat transfer during emplacement and cooling of mafic dykes[M]//Halls HC,Fahrig WF.Mafic Dyke Swarms.Geological Association of Canada Special Paper,1990,34:31-46.
[18]Webber KL,Simmons WB,Falster AU,et al.Cooling rates and crystallization dynamics of shallow level pegmatite-aplite dikes,San Diego County,California[J].American Mineralogist,1999,84:708-717.
[19]李德东,罗照华,周久龙,等.岩墙厚度对成矿作用的约束:以石湖金矿为例[J].地学前缘,2011,18(1):166-178.
[20]Mahon KI,Mark HT.Ascent of a granitoid diaper in a temperature varying medium[J].Journal of Geophysical Research,1988,93(B2):1174-1188.
[21]王玉往,王京彬,王莉娟.内蒙古大井锡多金属矿床锡矿物特征[J].地质与勘探,2006,42(4):51-56.
[22]Wang Y W,Wang J B,Uemoto T,et al.Geology and Mineralization at Dajing Tin-polymetalic Ore Deposit,the Inner Mongolia,China[J].Resources Geology,2011,51(4):307-320.
[23]王京彬,王玉往,王莉娟.大兴安岭南段锡多金属成矿系列[J].地质与勘探,2005,41(6):15-20.
[24]华北有色地质勘查局综合普查大队第一普查队.内蒙古自治区林西县地乡大井矿区铜锡多金属矿控矿因素和矿床成因等问题的初步研究[R].1990.
[25]廖震,王玉往,王京彬,等.内蒙古大井锡矿床岩脉LA-ICP-MS锆石U-Pb定年及其地质意义[J].岩石学报,2012,28(7):2292-2306.
[26]江思宏,梁清玲,刘翼飞,等.内蒙古大井矿区及外围岩浆岩锆石U-Pb年龄及其对成矿时间的约束[J].岩石学报,2012,28(2):4955-513.
[27]刘伟,潘小菲,谢烈文,等.大兴安岭南段林西地区花岗岩类的源岩:地壳生长的时代和方式[J].岩石学报,2007,23(2):441-460.
[28]王莉娟,王玉往,王京彬,等.大井矿床锡铜矿体成矿流体研究及其成因意义[J].岩石学报,2000,16(4):609-614.
[29]翟裕生,邓军,李晓波,著.区域成矿学[M].北京:地质出版社,1999:303.
[30]罗照华,陈必河,江秀敏,等.利用宽谱系岩墙群进行勘查靶区预测的初步尝试:以南阿拉套山为例[J].岩石学报,28(7):1949-1965.
[31]李德东,王玉往,王京彬,等.岩脉的侵位机制对成矿作用的约束——以内蒙古大井锡多金属矿床为例[J].地质与勘探,2012,48(3):538-545.
[32]王汉生.内蒙大井多金属矿床脉岩与控矿关系[J].有色矿冶,1992,(4):1-3.