The Analyzation Of Geological Characteristic Of Yulong Copper Deposit, Tibet

Select A typical deposit, and analyzed:Tibet Yulong Copper (Molybdenum) deposit, the largest of China Sanjiang porphyry copper deposit, It located in the Sanjiang Tethys tectonic belt in eastern, Complex tectonic framework, It Belongs to the Yulong porphyry copper (molybdenum) ore belt, and it not only is an important copper metallogenic zone, but also one of the most abundant copper resources in China.Yulong mine have being done a lot of exploration projects since found, there has formed a relatively dense prospecting Network. However, due to relatively shallow work on mine been done by exploration units, there is lack of more comprehensive grasp of the mine. Ore deposits are all grade of ore bodies, the framed based on the grade of the ore bodies. Next, the layout of prospecting line is not scientific, artificially, subjectivity is too strong, does not take into account the according to the data obtained from exploration and prospecting to adjust the exploration lines.Traditional methods in studying ore deposit and ore body geological characteristics require systematic studies of the floor plans and the profiles in prospecting engineering. The author will study on the basis of previous studies, Closely combine the existing mining area constitute a grid of exploration engineering and logging data, selected a more appropriate method, Combining with geologic software full consideration from the three dimensional adjacent borehole profile and the relationship between the prospecting line section, to establish the three-dimensional image resolution, maximum reduce the degrees of freedom of geological elements outlines, this provides convenience for the multiple perspectives cognizance of the geological elements shapes, occurrence and scale, based on drilling logging data of the three-dimensional strip image resolution, combining with the mining area geological elements such as the roof contour maps, the floor contour maps and the thickness of the contour maps, these provide conditions for the mining area to realizing the visualizations and quantitative system analysis of various geological factors, through analysis the single elements in the mining area lay a foundation for the study of relationship between mining area geological factors, in order to determine the relationship between geological factors, magmatic emplacement direction, ore fluid migration direction and have a system comprehensive study of the morphology, the occurrence,the scale of geological factors. Based on integrated analysis of geological characteristics of deposit, eventually to explore ore deposit geological feature constraint of related issues, namely mineralization processes of deposit, mineralization location, genesis and exploration direction..Through comprehensive analysis we can obtain that because I#ore body is porphyry ore bodies, mineralization is closely related to the intrusive rocks, many drilling in central of I#ore body, the intrusive rocks and porphyry ore bodies in the final hole depth have no bottom, so the deep ore body porphyry ore bodies with decurrent may exist, this is also a trend of deep ore prospecting in the future; And I#ore body contact with the inside of the hole is most intrusive rock and ore body has bottomed out, so the regional deep porphyry deposit there is smaller or more complex. Ⅱ, V#ore body as hornfels type and skarn type copper molybdenum deposit, occurrence is stratified, the reasons are due to magmatic hydrothermal invade the interlayer fracture zone formation of T3b and T3j formation, so it has good ductility, line of exploration and drilling work should be based on intrusive rocks in direction and to deploy the scale formation of intrusion, at the same time in the exploration drilling on the layout of should give full consideration to the thickness of the magma intrusion formation interval, so as to provide reference for the design of the drilling depth. On I#ore body with Ⅱ, V#fracture zone has a contact between the ore body, cryptoexplosive breccia copper molybdenum ore body mainly produced in the fracture zone, cryptoexplosive breccia copper molybdenum body belong to the rich copper molybdenum deposits, so we can consider appropriately encrypt or enhance drilling in contact with fracture zone.