武当隆起西北缘淋滤型绿松石成矿远景区预测
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摘要
绿松石是Cu、Al的磷酸盐矿物集合体,是具有很高价值的宝石矿产。武当古陆西缘的湖北与陕西交界处是高品质绿松石的重要产区。通过对绿松石矿床地质特征、产出地质条件分析,认为绿松石矿床主要产于下寒武统(含炭)硅质岩中,受断裂构造控制。结合矿床物化探特征,提出了该区绿松石矿床的找矿标志为:寒武系(含炭)硅质岩层、断裂构造发育、Cu高含量区域、放射性强度高(U含量较高)。根据地质及物化探资料圈定了绿松石矿床的一级、二级成矿远景区。
Turquoise,a phosphate mineral assemblage of Cu,Al,is a valuable gem mineral. The western margin of Wudang Uplift in Hubei-Shaanxi border is an important producing area of high quality turquoise. Based on an analysis of geological characteristics and geological conditions of turquoise deposits,the authors hold that turquoise deposits mainly occur in lower Cambrian( carbon-bearing)siliceous rocks and are controlled by fault structures. Combined with the geophysical and geochemical characteristics of the deposits,the authors point out some ore-hunting indicators of turquoise deposits in this area as follows: Cambrian( carbon-bearing) siliceous strata,well-developed fault structures,areas with high Cu content,and areas with high radioactivity( high U content). According to geological,geophysical and geochemical data,the first and second order minerogenic prospective areas of turquoise were delineated.
Turquoise,a phosphate mineral assemblage of Cu,Al,is a valuable gem mineral. The western margin of Wudang Uplift in Hubei-Shaanxi border is an important producing area of high quality turquoise. Based on an analysis of geological characteristics and geological conditions of turquoise deposits,the authors hold that turquoise deposits mainly occur in lower Cambrian( carbon-bearing)siliceous rocks and are controlled by fault structures. Combined with the geophysical and geochemical characteristics of the deposits,the authors point out some ore-hunting indicators of turquoise deposits in this area as follows: Cambrian( carbon-bearing) siliceous strata,well-developed fault structures,areas with high Cu content,and areas with high radioactivity( high U content). According to geological,geophysical and geochemical data,the first and second order minerogenic prospective areas of turquoise were delineated.
引文
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[15]石振荣,蔡克勤.湖北省竹山县绿松石矿床成因研究[J].岩石矿物学杂志,2011,30(3):187-194.Shi Z R,Cai K Q. Study on genesis of Turquoise deposit in Zhushan County,Hubei Province[J]. Acta Petrologica ET Mineralogica,2011,30(3):187-194.
[16]涂怀奎.绿松石与铀矿找矿方向的研究[J].甘肃地质学报,1997,21(1):75-80.Tu H K. Study on prospecting targets of Turquois and uranium mineralization[J]. Acta Geologica Gansu,1997,21(01):75-80.
[2]黄宣镇.绿松石矿床的成矿特征及找矿方向[J].中国非金属矿工业导刊,2003,13(6):50-51.Huang X Z. Metallogenic characteristics and prospecting of Turquoise Deposit[J]. China Nonmetallic Minerals Industry,2003,13(6):50-51.
[3]姜泽春,陈大梅,王辅亚,等.湖北、陕西一带绿松石的热性能及其共生矿物[J].矿物学报,1983,2(3):198-206,247.Jiang Z C,Chen D M,Wang F Y,et al. Thermal properties of Turquoise and its intergrowing minerals in a certain district of China[J]. Acta Mineralogica Sinica,1983,2(3):198-206,247.
[4]付宝国,侯青亚.绿松石的矿物学特征及成矿地质条件[J].华北国土资源,2017,12(5):33-34.Fu B G,Hou Q Y. Mineralogical characteristics and metallogenic geology conditions of Turquoise[J]. Huabei Land and Resources,2017,12(5):33-34.
[5]涂怀奎.秦岭地区主要玉石矿床特征研究[J].地质找矿论丛,2000,21(1):85-91.Tu H K. Study of characteristics of the main jade deposits in Qinling region[J]. Contributions to Geology and Mineral Resources Research,2000,21(1):85-91.
[6]涂怀奎.秦岭东段绿松石成矿特征[J].建材地质,1997,12(3):24-25.Tu H K. Metallogenic characteristics of Turquoise in eastern Qinling Mountains[J]. China Nonmetallic Minerals Industry,1997,12(3):24-25.
[7]王平安,陈毓川,裴荣富,等.秦岭造山带区域矿床成矿系列、构造—成矿旋回与演化[M].北京:地质出版社,1998.Wang P A,Chen Y C,Pei R F,et al. Regional minerogenetic series,tectono-minerogenic cycles and evolution in the Qinling Orogenic Belt,China[M]. Beijing:Geological Publishing House,1998.
[8]张国伟,梅志超,周鼎武,等.秦岭造山带的形成及其演化[M].西安:西北大学出版社,1988.Zhang G W,Mei Z C,Zhou D W,et al. formation and evolution of Qinling tectonic belt[M]. Xian:Northwest University Press,1988.
[9]聂虎.南秦岭东段构造热事件与地壳演化[D].安徽:中国科学技术大学,2016.Nie H. Tectonothermal events and crustal evolution in the eastern South Qinling Block[D]. Anhui:University of Science and Technology of China,2016.
[10]涂怀奎.秦岭东段绿松石成矿特征[J].建材地质,1997,24(3):24-25.Tu H K. Metallogenic characteristics of Turquoise in eastern Qinling Mountains[J]. Nonmetallic Minerals Industry,1997,24(3):24-25.
[11]陈思波,谢家涛,丁丽.竹山县绿松石矿产资源成矿规律研究[J].低碳世界,2015,32(16):130-131.Chen S B,Xie J T,Ding L. Study on metallogenic regularity of Turquoise mineral resources in Zhushan County[J]. Low Carbon Word,2015,32(16):130-131.
[12]刘绍飞.利用重磁异常研究南海盆地、断裂及岩浆岩分布[D].北京:中国地质大学(北京),2018.Liu S F. Study on the distribution of basins,faults and igneous rocks by gravity and magnetic data in the South China Sea[D].Beijing:China University of Geosciences(Beijing),2018.
[13]张建太.磁场信息的提取对构造识别的应用研究[J].地球物理学进展,2018,33(5):2064-2069.Zhang J T. Magnetic field data extraction for applied research on tectonic identification[J]. Progress in Geophysics,2018,33(5):2064-2069.
[14]马玉兴.郧阳地区绿松石矿地质特征及其经济评价[J].湖北地质科技情报,1989,4(12):14-18.Ma Y X. Geological characteristics and economic evaluation of Turquoise deposits in Yunyang area[J]. Geological Science and Technology Information of Hubei,1989,4(12):14-18.
[15]石振荣,蔡克勤.湖北省竹山县绿松石矿床成因研究[J].岩石矿物学杂志,2011,30(3):187-194.Shi Z R,Cai K Q. Study on genesis of Turquoise deposit in Zhushan County,Hubei Province[J]. Acta Petrologica ET Mineralogica,2011,30(3):187-194.
[16]涂怀奎.绿松石与铀矿找矿方向的研究[J].甘肃地质学报,1997,21(1):75-80.Tu H K. Study on prospecting targets of Turquois and uranium mineralization[J]. Acta Geologica Gansu,1997,21(01):75-80.