Study On The Relationship Between Iron And Titanium Mineralization Of Vanadium Titanium Magnetite In Taiyangwan Panzhihua

The western edge of Yangtze Continent is the world-famous origin of vanadiumtitanium magnetite.The Taiwanwan deposit is an important constituent unit of Panzhihua ore field.The research on vanadium-titanium iron deposit is relatively indepth compared with other minerals,but mainly concentrates on geological characteristics,geochemical characteristics,magmatism and mineralization,comprehensive information characteristics of geophysical and geochemical prospecting,comprehensive utilization and other aspects of the deposit.The recognition of mineralization characteristics is mainly based on geological observation and small amount of rock and mineral identification,and the recognition of Genesis and prospecting direction of the deposit.Know,opinions vary.Therefore,on the basis of existing research,the vanadium-titanium magnetite deposit in Taiwanwan is selected,and the classification mineralization research idea of the mentor team is adopted.Based on the project of "Research and delineation of resource-concentrated areas in southwest China",the classification mineralization characteristics and interrelationship of irontitanium two metallogenic elements are systematically and thoroughly dissected by using basic exploration analysis data,so as to restrict the genesis and prospecting direction of the deposit.The main achievements are as follows:(1)Panzhihua-Xichang vanadium-titanium magnetite belt,including the Sun Bay deposit,is characterized by a transition from massive mineralization to disseminated mineralization from the bottom up,sponge meteorite structure,magma crystallization differentiation and mineralization,and independent disseminated mineralization,reflecting the possibility of magma melting and mineralization,while block vein type mineralization with obvious penetration characteristics exists.This reflects the penetration characteristics of ore slurry(para-slurry).These evidences indicate that vanadium-titanium magnetite deposits are not formed by single action but by superimposition of multiple mineralizing material systems.(2)Grade A(associated grade-boundary grade)mineralization of iron accounts for 53.2% above the associated grade,Grade B(boundary grade-industrial grade)for 27.7%,and Grade C(industrial grade and above)for 19.1%.It reflects that the lowgrade mineralization of iron is extensive and the high-grade mineralization is gradually less.In the natural mineralization section revealed by drilling holes,the graded mineralization combination is mainly single-stage,accounting for 63.8%,followed by three-stage,accounting for 18.8%,with the least two-stage,accounting for 17.3%.In the graded structure,the two-stage structure is dominant,accounting for 52.3%;the third-stage structure is next,accounting for 32.5%;the single-stage structure is the least,accounting for 15.2%;showing the characteristics of multiple mineralization geological superposition.(3)Grade A(associated grade to boundary grade)mineralization of titanium accounts for 74.3% above the associated grade,Grade B(boundary grade to industrial grade)for 22.7%,and Grade C(industrial grade and above)for 3.0%.It reflects that low-grade mineralization of iron is extensive and high-grade mineralization is gradually less.In the natural mineralization section revealed by drilling holes,the graded mineralization combination is mainly composed of three-grade combination,accounting for 66.7%;the two-grade combination takes the second place,accounting for 19.6%;the single-grade combination only accounts for 13.7%;the two-grade structure is the main part,accounting for 55.6%;the third-grade structure takes the second place,accounting for 43.8%;the single-grade structure only accounts for 0.6%;showing the characteristics of multiple mineralization geological superposition.(4)According to the research on the combined sample structure of iron and titanium elements,there are up to 9 structural relationships of the combined sample type of iron and titanium elements,and it can be seen from the plane distribution diagram of the frequency of the combined sample type structure that more than 8 kinds of sample type structures are widely distributed in engineering,and the combination types of deposits are complex and varied.It indicates that the mineralization of iron and titanium is caused by the superposition of different mineralizing material systems.(5)Titanium-coated ferrous structure is the main component in the Fe-Ti element combination space through the research on the section structure of Fe-Ti element combination.According to the complexity of segment structure of titanium element and the mineralization classification combination type of iron,the large class structure of titanium-clad iron can be divided into 3 categories and 9 sub-categories.The segment structure type is complex and diverse,and its distribution is extremely uneven.It shows that the mineralization of iron and titanium is caused by the superposition of multiple mineralization geologies.(6)The Panzhihua Taiwanwan deposit is a superimposed metallogenic deposit of multiple mineralizing material systems,characterized by deposit geology,graded mineralization,graded combination,graded structure,sample structure and section structure.(7)Five edge-controlled target zones of the Taiyang Bay deposit are classified by overlapping of Fe-Ti accumulations,segments and high sample values.According to the potential areas indicated by Fe-Ti mineralization profiles,5 elevation target areas of the Taiwanwan deposit are further divided.It provides certain basis for further exploration and prospecting work.