利用因子分析和分形分析识别内蒙古黑鹰山地区矿致地球化学异常

doi:10.11720/wtyht.2020.1155

Abstract
Figure/Table
References
Related Citation (15)

Download: PDF (8425 KB) HTML (0 KB)
Export: BibTeX | EndNote (RIS)

Abstract

Factor analysis and fractal modeling were combined to study the 1:50000 geochemical data of Heiyingshan, Inner Mongolia, so as to recognize ore-induced geochemical anomaly. First, sample factor analysis of 10 elements mainly includes three factors: F1 consists of Zn-Cd-(Cu), F2 consists of Ag-Mo-Cu-Bi, and F3 consists of Sn-As-Pb-Sb. Second, the F2 factor score is further modeled by Concentration-Area (C-A) factor model. The fractal fitting lines of four segments were obtained from the log-log graph of Area-F2 factor score, which represent "low background area without prospecting potential", "background area", "high background area" and "high prospecting potential area", respectively. In the subsequent prospecting work, several mineralizations and alterations were found in the "high prospecting potential area". Some conclusions have been reached: F2 factor reflects the hydrothermal metallogenic process and can be used as a comprehensive index for the spatial aggregation of major metallogenic elements in the study area. The C-A fractal model can accurately delineate the boundary of F2 factor "high metallogenic potential area". The "high metallogenic potential area" can be used as the basis for delineating the prospecting target.

Key words： factor analysis C-A fractal model ore-induced geochemical anomaly Heiyingshan, Inner Mongolia

Received: 20 March 2019 Published: 03 March 2020

P632

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	Jing-Jing GONG
	Jian-Zhou YANG
	Sheng-Ming MA
	Lei SU

Cite this article:

Jing-Jing GONG,Jian-Zhou YANG,Sheng-Ming MA, et al. Recognition of ore-induced geochemical anomaly by combined factor and fractal analysis in Heiyingshan, Inner Mongolia[J]. Geophysical and Geochemical Exploration, 2020, 44(1): 122-131.

URL:

https://www.wutanyuhuatan.com/EN/10.11720/wtyht.2020.1155 OR https://www.wutanyuhuatan.com/EN/Y2020/V44/I1/122

Geological setting of Heiyingshan area(a) and location of samples(b)

Geochemical map(a), Histogram(b) and concentration-quantity log-log plot of Cu in Heiyingshan area

Characteristic roots and total variance explained of R-factor analysis

Orthometric rotating factor loading matrix for the R-factor analysis

Geochemistry subdivisions map of factor score in Heiyingshan area

Histogram of F2 score

Log-log plot of the cumulative area versus F2 factor score

F2 factor score based on C-A fractal model

Fig.6
a—geology map; b—samples symbol anomaly map of Ag; c—samples symbol anomaly map of Mo; d—samples symbol anomaly map of Cu; e—samples symbol anomaly map of Bi; f—map of F2 socre;the lower limit of the anomaly is determined by taking the outlier value of the whole work area and taking the confidence coefficient of 1.6; the 4 levels of Ag, Mo, Cu, and Bi represent the background, anomalous outer band, anomalous middle band, and anomalous inner band
">

Geochemical analysis of area b in Fig.6
a—geology map; b—samples symbol anomaly map of Ag; c—samples symbol anomaly map of Mo; d—samples symbol anomaly map of Cu; e—samples symbol anomaly map of Bi; f—map of F2 socre;the lower limit of the anomaly is determined by taking the outlier value of the whole work area and taking the confidence coefficient of 1.6; the 4 levels of Ag, Mo, Cu, and Bi represent the background, anomalous outer band, anomalous middle band, and anomalous inner band

Fig. 6
">

Photograph of mineralized alteration outcrop in area b in Fig. 6

[1]	Howarth R J, Sinding-Larsen R . Chapter 6 :Multivariate analysis[G]// Handbook of Exploration Geochemistry,Elsevier Science B.V., 1983: 207-289.
[2]	Cohen D R, Kelley D L, Anand R , et al. Major advances in exploration geochemistry, 1998-2007[J]. Geochemistry: Exploration, Environment, Analysis, 2010,10(1):3-16.
[3]	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]	Shi Y X, Ji H J, Lu J L , et al. Factor analysis method and application of steam sediment geochemical partition[J]. Geology and Prospecting, 2004,40(5):73-76.
[4]	刘洪, 黄瀚霄, 李光明 , 等. 因子分析在藏北商旭金矿床地球化学勘查中的应用[J]. 中国地质, 2015,42(4):1126-1136.
[4]	Liu H, Huang H X, Li G M , et al. Factor analysis in geochemical survey of the Shangxu gold deposit, northern Tibet[J]. Geology in China, 2015,42(4):1126-1136.
[5]	Sun X, Deng J, Gong Q , et al. Kohonen neural network and factor analysis based approach to geochemical data pattern recognition[J]. Journal of Geochemical Exploration, 2009,103(1):6-16.
[6]	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, 2007,32(1-2):314-324.
[7]	Cheng Q, Agterberg F P, Bonham-Carter G F . A spatial analysis method for geochemical anomaly separation[J]. Journal of Geochemical Exploration, 1996,56(3):183-195.
[8]	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.
[9]	Agterberg F P, Cheng Q M, Brown A , et al. Multifractal modeling of fractures in the Lac du Bonnet Batholith, Manitoba[J]. Computers & Geosciences, 1996,22(5):497-507.
[10]	Li C, Ma T, Shi J . Application of a fractal method relating concentrations and distances for separation of geochemical anomalies from background[J]. Journal of Geochemical Exploration, 2003,77(2-3):167-175.
[11]	Zuo R G, Cheng Q M, Agterberg F P , et al. Application of singularity mapping technique to identify local anomalies using stream sediment geochemical data, a case study from Gangdese, Tibet, western China[J]. Journal of Geochemicai Exploration, 2009,101(3):225-235.
[12]	Deng J, Wang Q, Yang L , et al. Delineation and explanation of geochemical anomalies using fractal models in the Heqing area, Yunnan Province, China[J]. Journal of Geochemical Exploration, 2010,105(3):95-105.
[13]	Afzal P, Alghalandis Y F, Khakzad A , et al. Delineation of mineralization zones in porphyry Cu deposits by fractal concentration-volume modeling[J]. Journal of Geochemical Exploration, 2011,108(3):220-232.
[14]	Zuo R, Wang J . Fractal/multifractal modeling of geochemical data: A review[J]. Journal of Geochemical Exploration, 2016,164:33-41.
[15]	Zuo R, Xia Q, Zhang D . A comparison study of the C-A and S-A models with singularity analysis to identify geochemical anomalies in covered areas[J]. Applied Geochemistry, 2013,33:165-172.
[16]	Chen G, Cheng Q, Zhang H . Matched filtering method for separating magnetic anomaly using fractal model[J]. Computers & Geosciences, 2016,90:179-188.
[17]	Mandelbrot B, Benoit B . The Fractal Geometry of Nature[J]. American Journal of Physics, 1983,51(3):286.
[18]	Cheng Q . The perimeter-area fractal model and its application to geology[J]. Mathematical Geology, 1995,27(1):69-82.
[19]	Cheng Q M . Spatial and scaling modelling for geochemical anomaly separation[J]. Journal of Geochemical Exploration, 1999,65(3):175-194.
[20]	Xiang Z, Gu X, Wang E , et al. Delineation of deep prospecting targets by combining factor and fractal analysis in the Kekeshala skarn Cu deposit, NW China[J]. Journal of Geochemical Exploration, 2019,198:71-81.
[21]	Fyzollahhi N, Torshizian H, Afzal P , et al. Determination of lithium prospects using fractal modeling and staged factor analysis in Torud region, NE Iran[J]. Journal of Geochemical Exploration, 2018,189:2-10.
[22]	Afzal P, Tehrani M E, Ghaderi M , et al. Delineation of supergene enrichment, hypogene and oxidation zones utilizing staged factor analysis and fractal modeling in Takht-e-Gonbad porphyry deposit, SE Iran[J]. Journal of Geochemical Exploration, 2016,161:119-127.
[23]	雷良奇, 宋慈安, 杨启军 . 甘肃公婆泉铜矿田中—晚志留世浅海相火山喷发旋回及火山作用演化[J]. 岩石学报, 1998,14(1):100-106.
[23]	Lei L Q, Song C A, Yang Q J . The middle and late silurian marine volcano eruption cycle and volcano action evolution of gongpoquan copper ore field, Gangsu Province[J]. Acta Petrologica Sinica, 1998,14(1):100-106.
[24]	聂凤军, 江思宏, 张义 , 等. 中蒙边境及邻区斑岩型铜矿床地质特征及成因[J]. 矿床地质, 2004,23(2):176-189.
[24]	Nie F J, Jiang S H, Zhang Y , et al. Geological features and origin of porphyry copper deposits in China-Mongolia border region and its neighboring areas[J]. Mineral Deposits, 2004,23(2):176-189.
[25]	康明, 岑况, 吴悦斌 , 等. 北山戈壁荒漠景观1∶5万地球化学测量方法研究[J]. 地质与勘探, 2004,40(3):64-68.
[25]	Kang M, Cen K, Wu Y B , et al. 1∶50 000 Geochemical prospecting methods and techniques in gobi desert landscape in the Beishan area, Northwestern China[J]. Geology and Prospecting, 2004,40(3):64-68.
[26]	范红科, 温银维, 姜羡义 , 等. 内蒙古中东部半干旱荒漠草原景观区岩屑地球化学测量的方法技术及应用效果[J]. 地质与勘探, 2008,44(5):64-69.
[26]	Fan H K, Wen Y W, Jiang X Y , et al. Geochemical debris exploration method and its effect in the semi-arid desert and grassland area, East-Central Inner Mongolia[J]. Geology and Prospecting, 2008,44(5):64-69.
[27]	Hron K, Templ M, Filzmoser P . Imputation of missing values for compositional data using classical and robust methods[J]. Computational Statistics & Data Analysis, 2010,54(12):3095-3107.
[28]	Treiblmaier H, Filzmoser P . Exploratory factor analysis revisited: How robust methods support the detection of hidden multivariate data structures in IS research[J]. Information & Management, 2010,47(4):197-207.
[29]	Paul D A . Applications of geochemistry in Targeting with emphasis on large stream and lake sediment data compilations[C]// Sydney:SEG Conference, 2004.
[30]	Govett G J S, Goodfellow W D, Chapman R P , et al. Exploration geochemical distribution of elements and recognition of anomalies[J]. Mathematica Geology, 1975,7(5/6):415-446.
[31]	Reimann C, Filzmoser P . Normal and lognormal data distribution in geochemistry: death of a myth. Consequences for the statistical treatment of geochemical and environmental data[J]. Environmental Geology, 2000,9(39):1001-1014.
[32]	Reimann C, Filzmoser P, Garrett R G . Factor analysis applied to regional geochemical data: problems and possibilities[J]. Applied Geochemistry, 2002,17(3):185-206.
[33]	Vistelius A B . The Skew Frequency Distributions and the Fundamental Law of the Geochemical Processes[J]. The Journal of Geology, 1960,68(1):1-22.
[34]	刘英俊 . 元素地球化学[M]. 北京: 科学出版社, 1984: 548.
[34]	Liu Y J . Geochemistry of element[M]. Beijing: Science Press, 1984: 548.