内蒙古某地区1∶5万化探数据的含量-面积分形异常特征及找矿预测
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摘要
以内蒙古某地区金铜矿产资源预测为研究对象,采用R型因子分析研究元素组合特征,提取5个代表性因子,绘制因子得分等值线图。应用含量-面积分形法确定地球化学异常下限,圈定异常,并结合元素组合特征和成矿地质特征,圈出达拉布盖、哈尔木腾、柳葫芦沟—大麦里沟、梁根—牛头沟—其勒格、树龙沟—麦子井5处找矿远景区。异常查证结果表明:梁根—牛头沟目前已发现3条工业矿体,为有利的金铜找矿靶区;其勒格发现5处金矿化信息,成矿地质条件良好,为下一步重点找矿地段。
The paper takes the prediction of gold and copper resources in one area in Inner Mongolia as the research subject,extracts 5 representative factors with R factor for the analysis of element combination features,and maps the factor score contour diagram. The content-area fractal dimension method is applied to determine the bottom level of geochemical anomalies and delineate anomalies,and associating the element combination features and metallogenic geological features,to delineate Dalabugai,Haermuteng,Liuhulugou- Damailigou,Lianggen- Niutougou- Qilege,Shulonggou- Maizijing as prospecting areas of prospects. Anomaly investigation results show that Lianggen- Niutougou sees 3 industrial orebodies,making it a favorable target area for gold and copper prospecting; Qilege sees 5 spots with gold mineralization information,making it an important prospecting area.
The paper takes the prediction of gold and copper resources in one area in Inner Mongolia as the research subject,extracts 5 representative factors with R factor for the analysis of element combination features,and maps the factor score contour diagram. The content-area fractal dimension method is applied to determine the bottom level of geochemical anomalies and delineate anomalies,and associating the element combination features and metallogenic geological features,to delineate Dalabugai,Haermuteng,Liuhulugou- Damailigou,Lianggen- Niutougou- Qilege,Shulonggou- Maizijing as prospecting areas of prospects. Anomaly investigation results show that Lianggen- Niutougou sees 3 industrial orebodies,making it a favorable target area for gold and copper prospecting; Qilege sees 5 spots with gold mineralization information,making it an important prospecting area.
引文
[1]赵少卿,魏俊浩,高翔,等.因子分析在地球化学分区中的应用:以内蒙古石板井地区1∶5万岩屑地球化学测量数据为例[J].地质科技情报,2012,31(2):27-34.
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[16]Xie S Y,Cheng Q M,Chen G,et al.Application of local singularity in prospecting potential oil/gas targets[J].Nonlinear Processes in Geophysics,2007,14(3):285-292.
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[19]成秋明,张生元,左仁广,等.多重分形滤波方法和地球化学信息提取技术研究与进展[J].地学前缘,2009,16(2):185-198.
[20]Yin C Q,Zhao G H,Guo J H.U-Pb and Hf isotopic study of zircons of the Helanshan Complex:Constrains on the evolution of the Khondalite Belt in the Western Block of the North China Craton[J].Lithos,2011,122(1/2):25-38.
[21]Dan W,Li X H,Wang Q,et al.Paleoproterozoic S-type granites in the Helanshan Complex,Khondalite Belt,North China Craton:Implications for rapid sedimentrecycling during slab break-off[J].Precambrian Research,2014,254:59-72.
[22]Dan W,Li X H,Guo J H,et al.Integrated in situ zircon U-Pb age and Hf-O isotopes for the Helanshan khondalites in North China Craton:Juvenile crustal materials deposited in active or passive con-tinental margin?[J].Precambrian Research,2012,222/223:143-158.
[23]潘桂棠,肖庆辉,陆松年,等.中国大地构造单元划分[J].中国地质,2009,36(1):1-28.
[24]谭俊.宁夏贺兰山北段金成矿类型及构造控矿规律[J].黄金,2013,34(12):9-14.
[25]Zhao G C,Wilde S A,Cawood P A,et al.Archean blocks and their boundaries in the North China Craton:lithological,geochemical,structural and P-T path constraints and tectonic evolution[J].Precambrian Research.2001,107:45-73.
[26]赵鹏大,胡旺亮,李紫金.矿床统计预测[M].北京:地质出版社,1994:161-178,260-276.
[27]Shen Wei,Zhao P D.Theoretical study of statistical fractal model with applications to mineral resource prediction[J].Computers&Geosciences,2002,28:369-376.
[2]时艳香,纪宏金,陆继龙,等.水系沉积物地球化学分区的因子分析方法与应用[J].地质与勘探,2004,40(5):73-76.
[3]田跃斌,张涛,杨青云,等.R型因子分析在水系沉积物测量地球化学分区中的应用——以浙西北地区为例[J].黄金科学技术,2013,21(3):48-54.
[4]石文杰,魏俊浩,张德才,等.基于数字高程模型因子分析的地球化学异常提取[J].物探与化探,2012,36(1):103-108.
[5]戴慧敏,鲍庆中,宫传东,等.因子分析法对内蒙古查巴奇地区水系沉积物地球化学分区的应用研究[J].现代地质,2010,24(2):245-251.
[6]马振东,蒋敬业,李艳霞,等.长江中下游及邻区基底地球化学分区及区域成矿远景预测[J].地球科学,1999,24(3):72-76.
[7]Singer D A,Kouda R.Some simple guides to finding useful information in exploration geochemical data[J].Natural Resources Research,2001,10(2):137-147.
[8]Sinclair A J.Selection of thresholds in geochemical data using probability graphs[J].Journal of Geochemical Exploration,1974,3(2):129-149.
[9]Cheng Q M.Mapping singularities with stream sediment geochemical data for prediction of undiscovered mineral deposits in Gejiu,Yunnan Province,China[J].Ore Geology Reviews,2007,31(1/2):314-324.
[10]Cheng Q M,Agterberg F P,Ballantyne S B.The separation of geochemical anomalies from background by fractal methods[J].Journal of Geochemical Exploration,1994,51(2):109-130.
[11]Turcotte D L.Fractals in petrology[J].Lithos,2002,65(3/4):261-271.
[12]Raines G L.Are fractal dimensions of the spatial distribution of mineral deposits meaningful?[J].Natural Resources Research,2008,17(2):87-97.
[13]Goncalves M A,Mateus A,Oliveira V.Geochemical anomaly separation by multifractal modelling[J].Journal of Geochemical Exploration,2001,72(2):91-114.
[14]Rantisch G.The fractal properties of geochemical landscapes as an indicator of weathering and transport processes within the Eastern Alps[J].Journal of Geochemical Exploration,2001,73(1):27-42.
[15]万能,李书涛,叶琴,等.分形异常筛选法在桐柏山—大别山地区钼矿调查中的应用[J].地质科技情报,2014,33(2):105-109.
[16]Xie S Y,Cheng Q M,Chen G,et al.Application of local singularity in prospecting potential oil/gas targets[J].Nonlinear Processes in Geophysics,2007,14(3):285-292.
[17]成秋明.多重分形与地质统计学方法用于勘查地球化学异常空间结构和奇异性分析[J].地球科学,2001,26(2):161-166.
[18]鄢旭久,薛林福,刘正宏.分形模型在黑龙江漠河地区金矿成矿预测中的应用[J].吉林大学学报:地球科学版,2012,42(2):384-392.
[19]成秋明,张生元,左仁广,等.多重分形滤波方法和地球化学信息提取技术研究与进展[J].地学前缘,2009,16(2):185-198.
[20]Yin C Q,Zhao G H,Guo J H.U-Pb and Hf isotopic study of zircons of the Helanshan Complex:Constrains on the evolution of the Khondalite Belt in the Western Block of the North China Craton[J].Lithos,2011,122(1/2):25-38.
[21]Dan W,Li X H,Wang Q,et al.Paleoproterozoic S-type granites in the Helanshan Complex,Khondalite Belt,North China Craton:Implications for rapid sedimentrecycling during slab break-off[J].Precambrian Research,2014,254:59-72.
[22]Dan W,Li X H,Guo J H,et al.Integrated in situ zircon U-Pb age and Hf-O isotopes for the Helanshan khondalites in North China Craton:Juvenile crustal materials deposited in active or passive con-tinental margin?[J].Precambrian Research,2012,222/223:143-158.
[23]潘桂棠,肖庆辉,陆松年,等.中国大地构造单元划分[J].中国地质,2009,36(1):1-28.
[24]谭俊.宁夏贺兰山北段金成矿类型及构造控矿规律[J].黄金,2013,34(12):9-14.
[25]Zhao G C,Wilde S A,Cawood P A,et al.Archean blocks and their boundaries in the North China Craton:lithological,geochemical,structural and P-T path constraints and tectonic evolution[J].Precambrian Research.2001,107:45-73.
[26]赵鹏大,胡旺亮,李紫金.矿床统计预测[M].北京:地质出版社,1994:161-178,260-276.
[27]Shen Wei,Zhao P D.Theoretical study of statistical fractal model with applications to mineral resource prediction[J].Computers&Geosciences,2002,28:369-376.