多龍礦集區(qū)控礦構(gòu)造信息提
[Abstract]:In recent years, a large number of copper and gold deposits have been discovered in the Dulong ore concentration area, Tibet. Based on the systematic analysis and secondary development of geological survey and mineral exploration data in this area, the metallogenic background and tectonic framework in this area are studied and explored in detail by using the spatial analysis method based on fractal theory. By means of principal component analysis (PCA), the geochemical data of water system sediments are fused with porphyry copper-gold metallogenic elements and indicator elements of tectonic activity. And S-A (energy spectrum-area) model is used to mine the information of element combination anomaly. The results show that the spatial distribution model of geochemical anomalies associated with the tectonic framework in the region indicates mineralization and the relationship between geochemical anomalies and regional fault structures to a certain extent. In addition, the spatial quantitative studies carried out in the region also show that the S-A model is effective in describing the self-similarity of the spatial distribution patterns of anomalies caused by specific geological processes. Especially the spatial quantitative description of geochemical background model can depict the tectonic framework and reflect the metallogenic background more deeply. The results infer the mesh-like fault system of porphyry metallogenic system in the control area. In addition, the process of data analysis and modeling provides ideas and experiences for further multivariate information extraction and fusion in this area, and is conducive to the discovery and delineation of new targets for prospecting.
【作者單位】: 中國(guó)地質(zhì)科學(xué)院礦產(chǎn)資源研究所;中國(guó)地質(zhì)科學(xué)院地質(zhì)力學(xué)研究所;成都理工大學(xué);
【基金】:國(guó)家自然科學(xué)基金項(xiàng)目(編號(hào):41402295);國(guó)家自然科學(xué)基金重點(diǎn)項(xiàng)目(編號(hào):41430320) 中國(guó)地質(zhì)調(diào)查局項(xiàng)目(編號(hào):DD20160026;DD20179142) 國(guó)土資源部公益性行業(yè)科研專項(xiàng)(編號(hào):201511017)聯(lián)合資助~~
【分類號(hào)】:P612
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