本文選題：地質統(tǒng)計學 + 多元統(tǒng)計法��； 參考：《西北師范大學》2015年碩士論文

【摘要】：本文通過對新疆惠井子南山地區(qū)巖屑化探數據進行傳統(tǒng)方法、相關性分析法、泛克里金法對和多重分形濾波技術相結合的方法,對新疆惠井子南山地區(qū)成礦能量異常信息進行分析,研究疆惠井子南山地區(qū)綜合異常信息在區(qū)域地質背景下的成礦有利性、綜合異常的區(qū)域變化特征、局部礦化異常特征、區(qū)域背景信息及異常的控制因素,以此獲取不同層次的綜合異常信息及控礦因素。對研究區(qū)采集的693件樣品的9種元素含量進行統(tǒng)計分析并且結合野外地質調查綜合分析,確定Sb元素在研究區(qū)屬于相對富集元素,且活化和遷移作用強烈,在有利的地質情況下極有可能成礦。因此確定其為本研究區(qū)成礦能量的主攻元素。并且對9種元素含量運用傳統(tǒng)迭代法和多重分形兩種方法進行異常下限的提取。使用分形方法確定異常下限與實際勘查結果吻合程度較高,反映了實際的異常范圍。由研究區(qū)地質略圖和泛克里金法獲取的綜合成礦能量異常圖進行對比分析可知,異常分布受到F2北西西向主斷裂的控制,可以推測其成礦過程可能跟斷裂構造有關的巖漿熱液作用具有一定的關聯(lián),可能是中石炭統(tǒng)的安山玢巖侵入圍巖中,在有利的部位富集成礦。因此中石炭統(tǒng)的安山玢巖可作為該區(qū)域尋找Sb礦化點的指示性巖性特征,其成礦能量異常變化特征具有明顯的裂控和巖控特征。泛克里金法能很好的揭示出成礦能量的空間結構變化特征及其控制因素,通過對成礦能量運用變差函數研究表明：新疆惠井子南山地區(qū)成礦能量的最大變程為2.4kmn,最大變程的方向為320°,這與區(qū)域內的主斷裂帶F2斷裂基本一致,具有較好的連續(xù)性。在變差函數中成礦能量連續(xù)性變化的最大變程為2.4km,說明在研究區(qū)巖漿巖的范圍之內具有較好的連續(xù)性。塊金效應25%,說明成礦能量在變程范圍內具有較強的相關性比較高其塊金效應,表明成礦能量表現(xiàn)出較強的結構性特征。運用泛克里金法獲得的異常和運用多重分形濾波(S-A)法獲取的成礦能量的異常進行比較可知：多重分形濾波(S-A)法能夠提取多層次的致礦異常信息,其中包括了成礦能量的區(qū)域異常和隱伏異�；蛘弑尘爸械娜醍惓：碗[蔽異常。通過多重濾波方法提取的不同層次的異常為下一步工作提供了新的研究靶區(qū)。通過成礦能量的確定成礦有利地段為：Ⅰ級、Ⅱ級、Ⅲ級和Ⅳ級。通過對這四個異常區(qū)進行分析可以知道,Ⅰ級有利地段為研究區(qū)的異常高值區(qū)同時也是尋找Sb礦的有利靶區(qū)。Ⅱ級有利地段為Au、Pb、Sb熱液型金多金屬礦遠景區(qū)；Ⅲ級成礦有利地段可作為尋找Mo、Sb、Bi熱液型多金屬礦的次級找礦遠景區(qū)。通過對背景和異常的異常信息的關聯(lián)分析,得出有利于礦化的解釋,指示隱伏礦床的分布位置和尋求未知礦床提供了新的啟示。
[Abstract]:In this paper, the traditional method, correlation analysis method, pankrikriging method and multifractal filtering method are used to analyze the lithic debris geochemical data in Nanshan area of Huijingzi, Xinjiang. This paper analyzes the information of metallogenic energy anomaly in Nanshan area of Huijingzi, Xinjiang, and studies the metallogenic advantage, regional variation characteristics and local mineralization anomaly characteristics of comprehensive anomaly information in Nanshan area of Huizinzi area in Xinjiang under the regional geological background. The regional background information and the controlling factors of anomalies are used to obtain different levels of synthetic anomaly information and ore controlling factors. The contents of 9 elements of 693 samples collected in the study area were statistically analyzed and combined with the comprehensive analysis of field geological survey, it was determined that SB elements were relatively enriched in the study area, and the activation and migration of SB elements were strong. Mineralization is highly likely to occur in favourable geological conditions. Therefore, it is determined to be the main attack element of ore-forming energy in this study area. Nine element contents were extracted by traditional iterative method and multifractal method. The fractal method is used to determine the lower limit of anomalies, which is consistent with the actual exploration results, which reflects the actual range of anomalies. Based on the comparative analysis of the geological map of the study area and the comprehensive metallogenic energy anomaly obtained by the pankriging method, it can be seen that the distribution of the anomaly is controlled by the main fault in the NWW direction of F2. It can be inferred that the metallogenic process may be related to the magmatic hydrothermal process related to the fault structure, and it may be that the Anshan porphyrite of the Middle Carboniferous intruded into the surrounding rock and enriched in the favorable position. Therefore, the Anshan porphyrite of the Middle Carboniferous can be regarded as an indicative lithologic feature in the search for SB mineralization points in this area, and the characteristics of abnormal variation of metallogenic energy have obvious characteristics of fissure control and rock control. The pankrikriging method can reveal the characteristics of the spatial structure of ore-forming energy and its controlling factors. By using variation function of metallogenic energy, it is shown that the maximum range of metallogenic energy is 2.4 kmnand the direction of maximum variation is 320 擄in Nanshan area, Huizinzi, Xinjiang, which is basically consistent with the F2 fault in the main fault zone in Xinjiang, and has good continuity. The maximum variation range of ore-forming energy continuity in the variation function is 2.4 km, which indicates that there is good continuity in the range of magmatic rock in the study area. The bulk-gold effect shows that the ore-forming energy has strong correlation in the range of variation range and its block gold effect is higher, which indicates that the ore-forming energy has strong structural characteristics. The comparison between the anomaly obtained by pankrikriging method and the anomaly of metallogenic energy obtained by multifractal filter S-A method shows that the multi-fractal filter S-A method can extract multi-level information of ore forming anomaly. It includes regional anomaly and concealed anomaly of metallogenic energy or weak anomaly and concealed anomaly in background. The different levels of anomalies extracted by multiple filtering provide a new research target for the next step. Through the determination of ore-forming energy, the favorable metallogenic areas are: 鈪，

本文編號：1862835