The Soil Geochemical Characteristics Of Ziyunshan Pluton At Yuhuashan Volcanic Basin In Jiangxi And Its Metallogenic Prediction

Yuhua moutain volcano basin is located in the Fengcheng, Xingan, zhangshu,Chongren and lean five counties at the junction, the tectonic setting located in the southernmargin of the Yangzte plate and Southern China plate suture, Luoxiao fold in mountain-nine mountain uplift belt, Suichuan-Dexing deep fault South East. Ziyun mountain rock islocated in the eastern part of Yuhua moutain, main exposed rock is coarse grain class shapebiotite granite, two in fine grained porphyritic two cloud K-feldspar granite andfine-grained less plaque two cloud two granite in the study area, U, Cu, Mo anomalies.This paper stars from the regional geological background of the study area, mainlythrough the soil geochemical survey, using the comprehensive interpretation andevaluation of anomaly, the delineation of three metallogenic forecasting target area, mainlyobtains the following understanding:1.The tectonic location area is favorable for mineralization, south of the study area islocated in the Yangtze plate and Southern China plate suture, Luoxiao fold in mountain-nine mountain uplift belt, Suichuan-Dexing deep fault South east. Delineation of targetareas and the whole study area NE trending fault structure to good agreement.2.Rock in the study area is mainly granite, and U abnormalities have importantrelationship; Cu, Mo anomaly and granite and metamorphic rocks of the contact zone ofsurrounding rock.3.Through the measurement of soil geochemistry in the study area, the delineation ofthe three target, using multivariate statistical analysis method of six kinds of elements Cu,Mo, Pb, Zn, U, Th, correlation analysis, factor analysis and R cluster analysis. Accordingto the combined evaluation of anomalies delineated one B one types of anomalies and twoB two types of anomalies. 4.The study area mineralization mainly molybdenite mineralization; wall rockalteration, silicification, mainly alkali metasomatism greisenization, pyritization,chloritization, hydromicazation etc.. Molybdenite mineralization and greisenization occursmainly in Yao on the pit area to the southeast, consistent with the geochemical anomalyzone soil area, greisenization along the fissures, joints and filling, can be used as marks ofprospecting for ore Mo.