藏东罗布莎蛇绿岩遥感岩矿信息提取方法研究

doi:10.6046/gtzyyg.2013.03.13

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摘要

为研究如何利用遥感技术进行蛇绿岩岩矿信息识别和提取,以藏东罗布莎蛇绿岩为例,基于ETM和ASTER遥感数据,分别采用比值法和主成分分析法提取羟基类(蛇纹石、绿泥石)和铁染类(磁铁矿、橄榄石)矿物信息; 利用纯净像元指数法(pure pixel index,PPI)提取端元波谱,结合地面已知岩性信息,分别采用光谱角分类法(spectral angle mapping,SAM)和波谱特征拟合法(spectral feature fitting,SFF)识别纯橄岩和橄榄岩,研究了罗布莎蛇绿岩及其主要蚀变矿物的空间分布特征。经过对比分析可知,用多种方法、多种数据提取的岩矿信息可以相互验证; 提取出的纯橄岩和橄榄岩与所提取的羟基类和铁染类蚀变遥感异常信息有较好的空间重叠,且与地面调查结果基本吻合。研究表明,该方法用于蛇绿岩遥感岩矿信息提取是可行的,并取得较好的地质效果。

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关键词 ：三维环境, 地质灾害遥感解译, 自动成图

Abstract：

With Luobusha ophiolite as the study case and on the basis of remote sensing data of ETM and ASTER,the authors used the ratio and principal component analysis methods to extract the altered mineral information of iron-stain alteration(magnetite and olivine)and that of hydroxyl alteration(serpentine and chlorite)respectively so as to study the utilization of remote sensing technology to recognize and extract the rock and altered mineral information of ophiolite. In addition, pure pixel index(PPI) method was employed to extract endmember spectrum. In combination with the available field lithologic information,dunite was distinguished from peridotite by methods of spectral angle mapper (SAM) and spectral feature fitting(SFF). On such a basis, the spatial distribution of Luobusha ophiolite rock and its main altered minerals was determined. The results of comparative analysis show that rock and mineral information extracted by different methods and different data types can be verified reciprocally. The extracted information of dunite and peridotite is well consistent with the extracted information of iron-stain alteration and hydroxyl alteration and is also coincident with the result of the ground survey. The results of this study show that the methods proposed in this paper are feasible for extraction of ophiolite rock and mineral remote sensing information, and have good geological effect.

Key words： 3D virtual environment remote sensing interpretation of geological disasters automatically mapping

收稿日期: 2012-09-09 出版日期: 2013-07-03

:	TP 79
	P 618.410.8

基金资助:

国家自然科学基金项目(编号: 41202233)、中国地质调查局"西藏自治区矿产资源潜力评价"项目(编号: 1212010813025)和成都理工大学青年科学基金项目(编号: 2010QJ19)共同资助。

作者简介: 别小娟(1978-),女,在读博士生,讲师,主要从事遥感教学与研究工作。 E-mail: bxj_sophia@qq.com。

引用本文:

别小娟, 张廷斌, 孙传敏, 郭娜. 藏东罗布莎蛇绿岩遥感岩矿信息提取方法研究[J]. 国土资源遥感, 2013, 25(3): 72-78.
BIE Xiaojuan, ZHANG Tingbin, SUN Chuanmin, GUO Na. Study of methods for extraction of remote sensing information of rocks and altered minerals from Luobusha ophiolite in east Tibet. REMOTE SENSING FOR LAND & RESOURCES, 2013, 25(3): 72-78.

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https://www.gtzyyg.com/CN/10.6046/gtzyyg.2013.03.13 或 https://www.gtzyyg.com/CN/Y2013/V25/I3/72

[1] 王成善,李亚林,刘志飞,等.雅鲁藏布江蛇绿岩再研究:从地质调查到矿物记录[J].地质学报,2005,79(3):323-330. Wang C S, Li Y L,Liu Z F,et al.Yarlung-Zangbo ophiolites revisited:From geological survey to mineral records[J].Acta Geologica Sinica,2005,79(3):323-330.

[2] Clark R N.Spectroscopy of rocks and minerals and principles of spectroscopy[M]//Rencz A N.Manual of remote sensing,volume 3,remote sensing for the earth sciences.New York:John Wiley and Sons,1999:3-58.

[3] Rowan L C,Mars J C.Lithologic mapping in the mountain pass,California area using advanced spaceborne thermal emission and reflection radiometer(ASTER)data[J].Remote Sensing of Environment,2003,84(3):350-366.

[4] Hewson R D,Cudahy T J,Mizuhiko S,et al.Seam less geological map generation using ASTER in the BrokenHil-l Curnamona province of Australia[J].Remote Sensing of Environment,2005,99(1/2):159-172.

[5] Tommaso I D,Rubinstein N.Hydrothermal alteration mapping using ASTER data in the Infiernillo porphyry deposit,Argentina[J].Ore Geol Rev,2007,32(1/2):275-290.

[6] 李智峰,朱谷昌,张建国,等.基于SPOT数据的铁化蚀变信息提取及找矿应用研究——以陇南金矿区为例[J].国土资源遥感,2011,23(2):91-97. Li Z F,Zhu G C, Zhang J G,et al.The extraction and analysis of iron alteration information based on SPOT data for mineral prediction:A case study of the Longnan gold ore district[J].Remote Sensing for Land and Resources,2011,23(2):91-97.

[7] 胡紫豪,唐菊兴,张廷斌,等.西藏多不杂斑岩铜矿ASTER遥感蚀变异常特征[J].国土资源遥感,2012,24(1):150-154. Hu Z H,Tang J X,Zhang T B,et al.Characteristics of remote sensing alternation anomalies from ASTER in the Duobuza porphyry copper deposit[J].Remote Sensing for Land and Resources,2012,24(1):150-154.

[8] 张志军,甘甫平,李贤庆,等.基于ASTER数据的蚀变矿物信息提取——以哈密黄山铜镍矿区为例[J].国土资源遥感,2012,24(2):85-91. Zhang Z J,Gan F P,Li X Q,et al.The extraction of altered mineral information based on ASTER data:A case study of the Huangshan copper-nickel ore district in Hami[J].Remote Sensing for Land and Resources,2012,24(2):85-91.

[9] 李培军,龙玄耀,刘立.基于ASTER数据的蛇绿岩组分识别——以德尔尼矿区为例[J].岩石学报,2007,23(5):1175-1180. Li P J,Long X Y,Liu L.Ophiolite mapping using ASTER data:A case study of Derni ophiolite complex[J].Acta Petrologica Sinica,2007,23(5):1175-1180.

[10] 黄照强,张显峰.基于ASTER的雅鲁藏布江缝合带泽当—罗布莎蛇绿岩套分析和组分识别[J].岩石学报,2010,26(12):3589-3596. Huang Z Q,Zhang X F.Lithological mapping of ophiolite composition in Zedan-Luobusha,Yarlung Zangbo suture zone using advanced spaceborne thermal emission and reflection radiometer(ASTER)data[J].Acta Petrologica Sinica,2010,26(12):3589-3596.

[11] 王国庆,夏斌.西藏罗布莎蛇绿岩及其构造意义[J].大地构造与成矿学,1987,11(4):349-362. Wang G Q,Xia B.The Luobusa ophiolite of Xizang Tibet and its tectonic significance[J].Geotectonica et Meallogenia,1987,11(4):349-362.

[12] 白文吉,方青松,张仲明,等.西藏雅鲁藏布江蛇绿岩带罗布莎地幔橄榄岩的成因[J].岩石矿物学杂志,1999,18(3):193-216. Bai W J,Fang Q S,Zhang Z M,et al.The genesis of Luobusa mantle peridotites in the Yarlung Zangbo river ophiolite zone,Tibet[J].Acta Petrologica et Mineralogica,1999,18(3):193-216.

[13] 王希斌,鲍佩声.豆荚状铬铁矿床的成因——以西藏自治区罗布莎铬铁矿床为例[J].地质学报,1987(2):166-181. Wang X B,Bao P S.The genesis of podiform chromite deposits:A case study of the Luobusha chromite deposit,Tibet[J].Acta Geologica Sinica,1987(2):166-181.

[14] 叶培盛,江万,吴珍汉,等.西藏泽当—罗布莎蛇绿岩的地球化学特征及其构造意义[J].现代地质,2006,20(3):370-377. Ye P S.Jiang W.Wu Z H.Geochemical characteristics of ophiolites in Zedang-Luobusha,Tibet and their tectonic significance[J].Geoscience,2006,20(3):370-377.

[15] 程学展,夏斌,李建峰,等.罗布莎蛇绿岩地幔橄榄岩同位素特征及其成因[J].大地构造与成矿学,2011,35(1):85-94. Cheng X Z,Xia B,Li J F,et al.Sr-Nd-Pb isotopic characteristics and origin of the mantle peridotites from the Luobusha ophiolite[J].Geotectonica et Metallogenia,2011,35(1):85-94.

[16] Kruse F A,Lefkoff A B,Dietz J B.Expert system-based mineral mapping in northern Death Valley,California/Nevada using the airborne visible/infrared imaging spectrometer(AVIRIS)[J].Remote Sensing of Environment,1993,44(2/3),309-336.

[1]	张明洋, 马维峰, 唐湘丹, 李仙伟. 地质灾害三维遥感解译成果的自动制图方法[J]. 国土资源遥感, 2013, 25(2): 164-167.

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