Based on the study of typical quartz vein type and structural superimposed halo model of blind ore prediction in deep altered rock type gold deposits of Shandong Province，the summarize of its common，we built the ideal structure superimposed halo model of quartz vein and altered rock type，determined five guidelines of blind ore forecast structural superimposed halo.During the prediction，we conducted the follow-up study of multiple gold targets，summaried the reasons of not see mine targets according to projections，revised and improved the forecasting models and the predict sign of blind mine，the forecast was continuously pushed forward into deep deposit.The method of looking for blind ore by structural superimposed halo achieved a new breakthrough both in the theory and methods technical research，not only improved the theory of the method，but also made the techniques more mature.There was a significant prospecting effect by using the method to forecast blind mine in deep deposits.
Primary halo on the mining area in the Zhaishang gold deposit were evaluated from the following aspects：single-hole core rock primary halo abnormal elements in the lateral variation in the veins，the veins element vertical variation of the different elevation of geochemical parameters change，the elements of the veins towardchanges，etc.We also conduct mineralization forecast in 76 line profile，deep and peripheral of 9-1 orebody.Analysis of single-hole ore primary halo shows that when the primary halo value is greater than 100×10-9，the gold grade of accordingly sample is basically greater than 0.5×10-6.Roughly three groups abnormality of association may be distinguished through the analysis of the 76 line profiles ore geochemistry，each group is composed of incomplete front halo，ore-body halo and rear halo abnormality，whereby the ore-prediction in deep.Analysis study of the primary halo in different elevation ore in 76 lines shows that there was the highest average Au element elevation and strongest mineralization in 2 520 m and 2 440 m elevation.For No.9-1 ore veins，elements close to the ore form a enrichment region between 2 430 m and 2 700 m elevation.There are still 5 forecast targets in ore the body deep No.9-1，in accordance with the laws of element distribution.Zhaishang gold deposit having multi-stage mineralization and segmentation enrichment patterns in the vertical direction，indicates great prospecting potential in deep.
Xilaokou gold deposit is located on the north edge of Jiao-Lai basin and the basin-margin fractures are developed.Thereinto，Dazhuanzi-Pengjiakuang interlayer gliding fracture is an important ore-bearing and ore-controlling structure.Ream work has been carried on in earlier stage.Fruitful results have been achieved.Geological prospecting is getting breakthrough in this area.Test results of different lithology in vein 18 have been analyzed in this paper.Factorial analysis and study of vertical zoning series have been employed.By this，the author believes that gold mineralization of this area is with multiple-stage feature.At least two times of hydrothermal activities occurred.The upper halo element As，lower halo element Bi and near halo element Pb，Ag are superimposed each other in depth of No.18 vein.It shows better ore-finding prospective in deep.It is also with important significance for forecasting other ore vein.
Gold ore vein of Linglong-Dongfeng mining area controlled by Zhaoyuan-Pingdu fault belt is typical Jiaojia-type structure altered rock type gold deposit.It is quite obvious that Dongfeng mineralization enrichment zone has vertical zonality and northeast lateral trending of orebodies.There is extremely enriched mineralization zone in deep Linglong-Dongfeng mining area（below -700 meters），because of the tectonic activity and ore-controlling role of Zhaoyuan-Pingdu fault belt,Linglong-Dongfeng mining area and mineral assemblage area in Northwest Jiaodong have great prospecting potential in deep extend to below thousands meters.Study of metallogenic regularity in Dongfeng mining area（including vertical zonality and lateral trending） is beneficial to maximize the exploration work.
Gold mines in the northern part of Laizhou City are mainly controlled by two major fractures，the Sanshandao and Jiaojia fault zones.The mylonite and SL tectonite in these two fault zones，and the macro and micro characteristics，such as quartz ribbon（L lineation），rotational porphyroclast and S foliation，all confirm that they belong to the brittle-ductile shear zone.Studies have shown that the ductile shearing occurred after the intrusion of the fractional crystallization dykes from the Guojialing magma，and the time was speculated about in the 126~122 Ma.The mylonite and SL tectonite correspondingly formed into disseminated and veined pyrite phyllic ore，under the filling and metasomatism of gold-bearing hydrothermal of the main mineralization.Ductile shearing of these two fault zones went a great depth，and was speculated to be intersected at the depth of 5 500 m. The composite parts between the Guojialing granite and the NE brittle-ductile shear zone，the eastern secondary structure of Yishu fault zone，formed in the Early Cretaceous，is the best position for the formation of the world-class alteration rock-type gold deposits.
The eastern part of Daxing’anling metallogenic belt in Inner Mongolia is an important silver，copper，gold， lead，and zinc mine area in China，with good adult conditions and prospecting potential.Mineral exploration of the area has made some breakthroughs，but still not enough，weak basic geological work and low level of comprehensive study in this area constraints to achieve a major breakthrough of the prospecting.To this end，on the basis of the comprehensive study of the area mineralization tectonic setting，metallogenic geological conditions and mineralization，the area was divided into four metallogenic belt，metallogenic characteristics were summaried and analysis of the mineralization potential was analyzed，we pointed out that the prospecting of the area and direction， and proposed work plans.
Xiejiagou mine pyrite phyllic altered mylonite-type gold deposits.After many years of exploration and development in this area，resource reserves are declining，so detailed investigation and evaluation of the deep ore body is needed to reserve mine resources for further development.Basised on a brief introduction on geological characteristics and orebodies geological features，a presentation about deep gold body scrutinizing in Xiejiagou mining area is made.Mineral alteration zone and dike rock are developed in Xiejiagou mining area，it is necessary to strengthen the geological prospecting deep on the edge，to provide necessary material basis for the continued development of the mine，on the basis of metallogenic regularity and mine geology analysis.With the gradual decline of mining depth，mining range gradually expanded，we should strengthen the research on characteristics of ore deposits within the further identification of ore characteristics and variation，to provide a basis for the rational use of resources and improvement of dressing and smelting process.
1∶50 000 stream sediment survey only delineate the abnormal range，give simple appraisal.Through the Zhaishang-Shendu ore belt anomaly re-integrative appraisal，a separate appraisal of six integrative geochemical anomaly were done.By using MapGIS technology to re-draw the contour map，fit the abnormal morphology and geological elements，in accordance with the dynamic delineation of abnormal method，to give a reasonable explanation.Integrative appraisal show that six integrative geochemical exploration anomaly were delineated in Zhaishang-Shendu ore belt：（1）in the Hs7-1 integrative anomaly area，favorable ore-forming parts is Talu-Xiaozhai belt.（2）in the Hs7-2integrative anomaly area，Digu-Chenjiawan belt is of better mineralization.（3）in the Hs7-3 integrative anomaly area，metallogenic conditions are better than the other anomaly area.（4）the Hs7-4 integrative anomaly area are divided into four anomaly belt，and the anomaly belt is as a whole showed a northwest trending， and with a similar equidistant distribution.In Bedrock development area，anomaly is development，in thick-covering area，the anomaly is not developed.Based on the analysis of the Zhaishang anomaly belt（Ht-Ⅰ），we suggest that the area in north of Zhaishang village，south of the F1 fracture，is expected to find new ore vein.In Goumabei-Nana pasture anomaly belt（Ht-II） and Zhuoluo-Zhamashu anomaly belt （Ht-III），geochemical anomaly in thick-covering area indicating there is still hope to find new veins in deep.The scale of 31 ore vein in Buzi mountain-Hulinliang anomaly belt（Ht-Ⅳ）should be larger，Geological Survey should be done in south side of the anomaly.（5）It is expected to find new ore vein within the Renyigoukou-Shijiatai one belt ridge of Permian Shilidun，up and down group strata，the Devonian Xihanshui Group in Guoying cattle farm-Hualingounao，and Late Devonian Dacaotan Group strata，in Hs7-5 integrative anomaly.（6）It is necessary to verify a few geochemical anomaly in Changjiashan belt，Hs7-6 integrative anomaly.The six integrative geochemical exploration anomaly delineated by the appraisal Zhaishang-Shendu ore belt narrowed to find the target，so the next step in the prospecting work more operational.Re-evaluation of the six integrative geochemical exploration anomaly in Zhaishang-Shendu ore zone，we narrowed the prospecting targets，to make the future work more targeted and operability.
Based on the engineering geological and mining conditions of the Wang’ershan gold mine，numerical simulation method was applied to study the mining-induced rock mass movement and shaft deformation.By numerical calculation，the regularities of the disturbed stress and displacement fields of rock body were put forward.The characteristics of shaft deformation were comparatively discussed under filled and non-filled mining conditions.The study results showed that the equilibrium state of the in-situ stress field was destroyed by the underground mining activities.The occurrence of the mine goaf imposed strong impact on the principal stress field of the pitshaft.The maximum principal stresses were small and sometimes turned into tensile stresses at the shallow part of the pitshaft，which was detrimental to the pitshaft stability.In contrast，the displacements of the pitshaft were greatly decreased when the mined-out space was filled.Thus，the filling body played an important part in the restriction of the surrounding rock mass movement and the promotion of the pitshaft stability.It suggested that filling the mining goaf is a necessary measurement to avoid pitshaft deformation and rupture in future mining.
Sanshandao gold deposit is a submarine and littoral underground mine，which has abundant water in bedrock fissure and complicated hydrogeology condition.In the mine tunnel，the inflow of water is large and has corrosive，and the operating environment has high temperature and humidity.In recent years，based on the research of equipment selection of chemical grouting and construction technique test of grouting，some measures，such as using ZBQS pneumatic dual liquid grouting pump to perfuse HK9101 material，are groped for successfully treating the high temperature，humidity，halogen and flow in tunnel gushing water.On this basis，we obtained better economic benefit.This has some disquisitive and generalized value for the treatment of gushing water in deep tunnel exploitation.
In order to reduce the loss of safety pillar，using pit excavation method to recovery the orebody from surface 10 m to -2.0 m within the immediate mining area of the Sanshandao gold mine.Because subject to site layout of the plant and taking account of speeding up the construction schedule and reducing the production cost，we choose the blast pattern of long-hole shock controlled blasting.To maximize the reduction of blasting vibration on the surrounding environment，proposed the program of pre-splitting blasting on pit outline first，main blast of longhole shock controlled blasting in deep hole later.In this paper，parameters of two controlled blasting method is determined in detail，blasting effect is analyzed.Elaborate on blasting program choosing，blasting parameter optimization，initiation network design and security checking and protection，provides a reference for similar projects.
This paper introduce the principle of the electro-adsorption prospecting method and its application status.By using the electro-adsorption prospecting method，several anomalies were found in Mawan gold mining areas，high stackheterozygosity anomalies are mainly concentrated in south-central of the areas，all elements are in good agreement.In order to verify abnormal，three holes are laid in the work area，in which gold orebody are obvious，with maximum depth more than 1 000 m.Comparative study between the abnormal results and drilling results show that the anomalies of electro-adsorption prospecting method can reflect the deep buried ore bodies better than conventional geochemical methods，which can only reflect the outcropping ore body，indicating that the electrosorption method are more effective in searching for buried ore prospecting than conventional geochemical methods.
Geochemical exploration data is an important basis when carried on regional geological survey and prospecting.During process the regional geochemical exploration data，a series of problems occurred：how to splice the multi-sheet geochemical data in different landscape area，background value and geological unit；how to screening abnormality in different contexts；how to select area by general characteristics of the ore-forming elements；and so on.Based on partition standardization，the study uses geochemical exploration composite anomaly method and consider main related characteristic of ore-forming elements.Then，using post-standardized comprehensive abnormal to screen abnormal and to select regional constituencies，it is significant for regional prospecting.
A great loss usually occurred in the process of mining due to bad rock instability.Therefore an urgent evaluation research on rock mass stability is necessary for pre-construction.According to mining area joints fractured surveies，statistical methods and results，basised on the experiments of engineering geological joints fractured sketch statistics rock mechanical nature，the studies combined with Jiaojia gold of the engineering geological conditions.We use methods of investigate and statistical analysis on the spot，indoor rock mechanic test，and a method of rock classification combined by different classification methods，and nonlinear finite element numerical analysis，to discuss further on the relationships of joint fissure and the stability of surrounding rock of underground tunnels.According to different security levels of mine，relevant mining technology solutions are determined.Deep discussion and research about the relationships of joint fissure and the underground rock mass stability are carried out.
In this paper，we discuss the structure principle of the mineralization network structure， summarize the ore-controlling structure formation mechanism，reveals a space-time structure and mineralization process of the Sizhuang gold deposit structure-alteration-mineralization network.The multi-disciplinary evaluation system of the mineralization enrichment， regularity and prediction criterion and multivariate information and establishes its prospecting model， and then set out the study of metallogenic regularity of the Sizhuang gold deposit.Orebody location forecasting of edges and deep in Sizhuang gold deposit also are carried out.The study can effectively solve the problems in geological exploration，and play an important role in the edge metallogenic prediction and prospecting in Jiaojia area，and is an example for the similar mining area，provides some new thoughts and new methods in the prediction for the formation of orebodies and mining area prospecting.
The underground pipeline is an important part of the mine infrastructure.Advanced methods are used to detect the mining area pipelines，to identify the status quo of pipelines，and to obtain the attribute information and spatial information of the pipelines.Meanwhile，GIS technology has been widely used in building the information management system of pipelines.This is of great significance to the dynamic management of the mining area pipelines.According to the distribution characteristic of the underground pipelines，we summarize the method of detection mine underground pipeline on preparation for the detection，accuracy requirements of the detection，the project quality inspection，the data processing，etc.，and then consider the idea for establishing a mining area underground pipeline database and developing a system by GIS technology，including data standardization,database and system designment，information system components, etc.
Microwave heating technology is a new technology developed in recent years，with a uniform heating，high thermal efficiency，and non-polluting，start and stop heating very quickly，and can improve the material properties，etc.，are widely used in the field of electronic，chemical，pharmaceutical，environmental protection and family life.By summing up the application status quo of microwave heating technology in gold and other precious metal ore processing，roasting and decomposition，to clarify the mechanism and the necessary equipment and reagents，and cited the application instance of microwave heating technology in the rapidly determination of gold and other precious metals.Microwave heating technology has broad prospects，but its application in the analysis of precious metals is still in the experimental stage，and needs further development and research.
The gold reserve is huge，ore-forming time concentration （115±5 Ma） and mainly distributes in Sanshandao，Jiaojia and Zhaoping three main fault belt in Northwest Shandong area.Research thinks，gold deposit in the area is so concentrated，is closely related to the evolution of deep Laiyang sub-mantle plume and its Guojiadian mantle branch structure formation.Gold element of deep source in gas-gas liquid mixed state-ore-bearing fluid form，through the mantle plume to sub-mantle plume and mantle branch structure，migration into the mantle branch structure outside of the ductile brittle shear zones，intrusive rocks，within the outer contact zone,intensive tectonic fracture zone，a variety of vein rock and surrounding rock contact with favorable tectonic expansion belt agglomeration ore，form ordered permutation and combination of different types of orefield→deposits→orebodies （veins）.
The middle belt of Xiaoqinling gold field is ore-bearing fluid penetration ductile and brittle shear zone of Laoyachan antiform wing formation of auriferous quartz veins.It is not only of long extension，larger extending and wide veins.Distribution has large and medium-sized gold mine of Wenyu，Dongchuang，Yangzhaiyu，Chang’ancha，Jindongcha and other.We reviews background of metallogenic geological，analyze the characteristics of ore-controlling structures，discuss the ore-forming.The studies indicate that ore-forming fluid comes mainly from deep source，through the multistage evolution of mantle plume，penetration to the ductile shear zone of accumulation and mineralization，formation of gold-bearing quartz veins.Even a mother lode gold reserves to the whole mining area from 50% to 90%.We recommended not to evaluate the scale of ore deposits according to mining right，but to the natural distribution，including guiding mining deep and peripheral prospecting.
Lengjiaxi strata in Quxi gold deposit with high initial gold background value，gold that is easily to be released was activated，migrated，and then precipitated，enriched in local area，due to metamorphism and tectonism.In Early Yanshanian，due to compression of the intra-continental subduction and collision，tectonic thermal event resulting in melting of diver deep or melting in the Lengjiaxi Group strata to form granite magma.Magma underplating along the deep fault intrusion，in the process of intrusion the deep fluid mixed with metamorphic water and meteoric water，and extract the mineral formation of gold in Lengjiaxi group，the hydrothermal bring gold migrate to construct favorable parts of the uninstall enrichment and mineralization.Lengjiaxi stratum provide gold material sources for the mineralization of Quxi gold deposit.While Granite not only provide the source of the gold material，but also provide thermal power for the mineralization.
Through research of deep prospecting in Chaihulanzi gold deposit，starting with raw data collecting from the field，focused on the ore body characteristics，summary its occurrence law，and then complete a position prediction of the deep ore bodies.The prediction had been verified by drilling confirmed was a deep prospecting breakthrough.The position of the deep orebody was judged mainly according to the geological conditions of the fault structure and the ore body characteristics analysis，the results showed that the lateral trending of center of the knob tectonic，the intersection of orebodies with different trends，is the lateral trending of the orebodies，the orebody developed to the deep along the direction of the intersection.Thus，we determined the predicted target：Firstly，a 315° trend orebody with key forecast positions below the elevation of 700 m，between south of 18 lines to 33 lines；secondly，a nearly EW trend orebody with the key predict positions below the elevation of 700 m between east 5350 line to 5950 lines.Drilling results verified that mineralization within the target range was good，obtaining a total of 4 511.39 kg of gold metal （333），1.436 million tons of ore.The 1# orebody had 713.84 kg of metal content，196 400 t of ore；4# and 8# orebody had a metal content of 797.55 kg，1.2395 million tons of ore，respectively.
In order to solve the crisis of mines resources，characteristics of No. 51 vein in Linglong gold mine field are carefully researched，and obtain better understant about vein metallogenic features and ore-forming regularity in the deep.Using the characteristics of vein rocks，we find that the No. 51 vein is broken，dislocated，interspersed，displaced and parallel intergrowth by lamprophyre in the later period in deep metallogenic conditions，getting good effect in vein rocks prospecting.Combining with the examples of production practice，the comprehensive utilization value is analysised，metallogenic target areas are forecasted in Vein No. 51，we suggest that the Vein No. 51 is still with large mining use value.Thus，the vision of geological reserves，production and service life of mine are expanded，problems of the continuation production are resolved.
Eastern Shandong is one of the gold origin，with very good metallogenic condition.Linglong type gold deposit is refers to the development of the Mesozoic granite structure in shear zone contain iron ore veins-the golden pyrite phyllic fractured hydrothermal altered rock type gold deposits，the granite remelting matrix is account precambrian including mafic volcanic rock in the sedimentary metamorphic series，with Xishan wide quartz ore belt of Linglong gold deposit as the representative.Based on the study of regional geological fault zone，mine geological，geophysical features，such as carry out IP measurement in the region，successfully stimulate the ore abnormal.The drilling means verify the abnormal，made a lot of prospecting breakthrough，this provides theory basis for fault zone and exquisite in further ore-prospecting work.
No.1 Vein of Dazhuangzi gold deposit is controlled by the Dazhuangzi fault zone.The quasi-lamellar，thick and tabular gold deposit occurs in the tectonic alteration zone，and spreads as vein along the strike.The minerals in No.1 vein，which belongs to mesothermal and metasomatic deposit，is dominated by altered rock with multiple generations.Based on the analysis of the characteristics of the geology of mining areas and the gold deposit，and the mineralization stages，the prospecting indicators of No.1 vein were listed，with reference to the geochemical anomalies.Then the preliminary deep prospecting was made.
Yuchiling porphyry Mo deposit is a new type deposit which can be seen in post-collisional Orogenic belt.In this paper，the author has centigramed the main alteration of wall rocks and the spreading pattern in space，ascertaining the relationship of mineralization and veins，and investigatting the mechanism of fine granite and veins，and setting up the deposit model initially by detailed research for geology，alteration and， mimneralization.By this，we can come to a conclusion that the fine granite and early veins are the results of evolving porphyry granite and ore-rock，however，the earlier veins and final veins are the results of fluid exsolution of the fine granite.The ore-rock has been altered at the same time，that are the earlier potassium，the later muscovit-quartz alteration sericitization，phyllic alteration and the latest carbonation alteration and argillic alteration.The alteration type and intensity of the deposit are no change almost in vertical direction，but the alteration type and intensity of the deposit have obvious changes in the horizontal direction.We know now that the main mineralization occurred along with the muscovite-quartz alteration and the mineralization type are veinlet and stockwork mainly.
Chengde area is located in molybdenum(copper) polymetallic metallogenic belt controlled by EW，NE and NNE trending fault in middle north margin of North China platform.Several deposits have been successively found in this area，such as Sadaigoumen porphyry molybdenum deposit，Shouwangfen skarn Mo-polymetallic deposit and Dacaoping vein type molybdenum deposit，which shows that this area has a good ore-forming background and prospecting potential.These molybdenum deposits are associated with Yanshanian intermediate-acid granites in time and space.The deposits are usually distributed along the internal or external contact zone of the granite porphyry or in rock bodies.Based on sufficiently collecting and studying the existing data of the typical molybdenum (copper) deposits in Chengde area，combined with the former research results，this article systematically summarizes geological characteristics，deposit types and spatial and temporal distribution of molybdenum deposits in this area，prospecting direction and target in the future is also proposed.It has important significance for strengthening resources exploration and prospecting breakthrough of molybdenum deposits in this area.
Hacipushannan copper mine is located in the eastern section of the Qimantage-Dulan metallogenic belt， which is one of the important metallogenic belts in Qinghai Province key exploration in recent years.Based on the authentication summary and analysis of geological features of ore deposits，we think that its belongs to magmatic hydrothermal copper deposits.The copper orebody of this area is basically layer or ribbon distribution，orebody direction is basically same to F2 fault，so we think F2 fault is the most important ore-controlling structure and dissolving structure in the mining area，magma activity of the print period provides heat source and mining sources condition for the whole mineralization，the hot liquid containing ore extracts parts of ore containing hydrothermal in surrounding rock during the ascent and provides necessary conditions for forming mine. We analyze that the mining area possess a good prospect for mineral exploration.
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