發(fā)布時(shí)間：2018-03-22 22:16

  本文選題：加權(quán)最短距離場　切入點(diǎn)：三維　出處：《地質(zhì)論評(píng)》2017年02期 　論文類型：期刊論文

【摘要】：針對(duì)成礦定量預(yù)測(cè)強(qiáng)調(diào)三維空間信息的綜合研究的特殊需求,以及定性與定量、二維與三維數(shù)據(jù)綜合分析難等關(guān)鍵問題,本文提出了一種基于三維非均質(zhì)空間的加權(quán)最短距離場算法,既可反映斷層破碎帶在成礦元素運(yùn)移過程中的通道作用,亦可回溯出目標(biāo)體元到源體元的最短路徑。應(yīng)用該方法開展了對(duì)紅透山銅礦區(qū)的三維礦體模型在地表的距離場值與土壤地球化學(xué)測(cè)量數(shù)據(jù)的關(guān)聯(lián)關(guān)系分析,發(fā)現(xiàn)已知和預(yù)測(cè)礦體共同的距離場與化探異常有更高的匹配性,間接證明了預(yù)測(cè)礦體的可靠性。該方法一定程度上解釋了由礦體導(dǎo)致的地表化探異常,可以為化探、遙感等地表數(shù)據(jù)與三維地質(zhì)數(shù)據(jù)模型進(jìn)行綜合分析及關(guān)聯(lián)關(guān)系的提取提供借鑒。
[Abstract]:In view of the special needs of the comprehensive study of three-dimensional spatial information in metallogenic quantitative prediction, as well as the key problems such as qualitative and quantitative analysis, and the difficulty of comprehensive analysis of two-dimensional and three-dimensional data, etc. In this paper, a weighted shortest distance field algorithm based on three-dimensional heterogeneous space is proposed, which can reflect the channel action of fault fracture zone in the process of migration of ore-forming elements. The shortest path from the target element to the source element can also be traced back. Using this method, the correlation between the distance field value of the 3D orebody model in Hongtoushan copper ore area and the geochemistry data of soil is analyzed. It is found that the common distance field of known and predicted orebodies has a higher matching with geochemical anomalies, which indirectly proves the reliability of the prediction of orebodies. This method can explain the surface geochemical anomalies caused by orebodies to some extent and can be used as geochemical prospecting. Remote sensing and other surface data and three-dimensional geological data model for comprehensive analysis and the extraction of correlation relationship to provide reference.
【作者單位】： 中南大學(xué)有色金屬成礦預(yù)測(cè)與地質(zhì)環(huán)境監(jiān)測(cè)教育部重點(diǎn)實(shí)驗(yàn)室 地球科學(xué)與信息物理學(xué)院;中國地質(zhì)大學(xué)地質(zhì)過程與礦產(chǎn)資源國家重點(diǎn)實(shí)驗(yàn)室;美國猶他大學(xué)地質(zhì)與地球物理系;
【基金】：國家自然科學(xué)基金資助項(xiàng)目(編號(hào):41302259和41472302) “十一五”國家科技支撐計(jì)劃課題(編號(hào):2008BAB34B02)的成果~~
【分類號(hào)】：P618.41;P632

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本文編號(hào)：1650641