Evaluation of zone dispersed mineralization from blind mineralization in active and inactive mines are the main challenges in mining geochemistry. In this research a new model has been presented for detection of anomaly by integration of singularity and zonality methods. This method show the depletion and enrichment of vertical zonality index in study area. Singularity of vertical zonality index was mapped in Kerver2. Results show west of this area is blind mineralization.

Evaluation of zone dispersed mineralization from blind mineralizations in active and inactive mines are the main challenges in mining geochemistry. In the past years, Different quantitative models have been presented for different types of mineralization using zonality traditional method. These methods have different disadvantages. In this research, a new model have been presented for detection of anomaly by integration of singularity and zonality methods in Baggolom (in Jebal-Barez region), then the obtained results were compared with results of zonality and fractal methods. 400 rock samples were taken from the studied area, and analyzed for Cu, Zn, Ag, Pb, Au, W, As, Hg, Ba, Bi with emission spectrometry. According to the zonality method if Pb*Zn/Cu*Ag>10, the anomaly is a blind mineralization. This method shows the depletion and enrichment of vertical zonality index in the area. The singularity of vertical zonality index (Pb*Zn/Cu*Ag) was mapped. Results showed that the northern part of this area is a blind mineralization and the copper anomaly in the center and southwest of the area is a zone dispersed mineralization. These results are in good agreement with the zonality method and previous researches in this area. The fractal method with the zonality index threshold of 398 showed the same results. This method do not need to access the database of copper porphyry deposits or comparison with other similar deposits.

Identification of deep ore deposits is one of important subjects in exploration field. Discrimination of dispersed mineralization zones and blind mineralization area is an important challenge in exploration of mineral deposits. Geochemical Zonality method and alteration models are traditional method that utilized for exploration of deep ore deposits specially Cu porphyry and Au veiny deposits. In this study, the anomaly thresholds have been determined using the fractal method for calculating the Zonality indexes in Tanurcheh area and then 4 important Zonality indexes have been used. In addition to these traditional methods, suitable information in this field can be achieved using interpretation of geochemical data in frequency domain. The situation of deep deposits and dispersed zones can be surveyed using interpretation of frequency anomaly in frequency coefficients of elements method. In this study, the potential of deep mineralization in one part of Kashmar Au and Cu mineralization area has been surveyed by frequency coefficients of elements method and obtained results have been compared to Zonality method and information of deep exploratory boreholes. The results of frequency coefficients method have properly been confirmed using the results of deep drillings unlike Zonality method.

The Damanghor gold mineralization occurrence is located in north of Bardaskan, Khorasan Razavi Province, and Taknar zone. The geology of the area consists of Precambrian green sericite schist and metarhyolite, intruded by diabase. Mineralization in this area is in vein form with N50E stribe and 70NW dip and hosted by schist and metarhyolite with 300 meters length and 2 to 35 meters width. Disseminated and veinlet mineralization includes primary minerals of pyrite and chalcopyrite and secondary minerals such as covelit, malachite, azureite, hematite, goethite and limonite with quartz, sericite, and lesser clay minerals. Silicic-sericitic alteration is the most important alteration zone associated with mineralization. Based on rock samples taken from explorative trenches, gold anomalies range from 0. 3 to 12. 5 ppm, silver up to 30 ppm, copper up to 860 ppm, and zinc about 9252 ppm. Based on the evidence of host rock, the type and extent of alteration, structural control, shape and type of mineralization and primary minerals and geochemical anomalies, the occurrence of Damanghor gold mineralization is epithermal with intermediate sulfidation state that is related to hydrothremal derived from Cenozoic magmatic activities.

The Masjeddaghi area, located in the Jolfa 1/100000 geological map sheet, is a part of West Alborz zone - Azarbaijan. The oldest rock unit outcropped belongs to the Eocene flysh, widely distributed in the southern and north eastern part of the area.The other outcrops are mainly volcanic rock complex of andesite and trachyandesite affected by quartz monzonite intrusives and produced phyllic and carbonate phyllic alteration. The mineralization in volcanic complex is mainly silicic and barite veins. SEM and mineralography studies indicate the occurrence of sulphide mineralization especially Cu, Pb, and Zn sulphides. In addition, various pyrites occur as primary and secondary minerals. The galena and sphalerite mineralization can be observed in the main vein but not in the altrated area. SEM study indicates absence of gold in sulphide minerals. On the other hand fluid inclusionstudies show slow temperature gold formation (120 - 150°C) and very low salinity which specify probably that the gold is not carried along with chloridric complex in this stage. Evidences like parageneses, elements, gangue and alteration around silicified veins all indicate the presence of a polymetal gold - copper vein ore deposit of epithermal origin with high sulphide values.

KuhSefid Flourite deposit is located about 110 km south east of Mashhad. Geological units of the region related to Kashafroud Formation with Jurassic age. Most of fluorite mineralization can be seen along the faults with direction of north west-south east. Fluorite veins are differente in diameter of 2 to 2. 5 m and length of 50 m. Hydrothermal solutions with maximum and minimum temperatures of 181⁰ C and 125⁰ C with the average temperature of 152⁰ C in protraction of faults, cracks and fragments, have created mineral substance. Geological evidences, petrography, mineralization and homogeneous temperature of fluids inclusion, are the evidences that concluded the Fluorite mineralization as Epithermal.

Iron mineralization of Kalate Shahin is located 107 km on the Ghoochan-Neyshaboor road (in Khorasan Razavi province). Subvolcanic intrusive bodies of quartz monzonite to monzonite porphyry intruded the Cretacous limestone. Sedimentary units of the area in decreasing age include Cretaceous limestone and Eocene and Paleocene-Quaternary microconglomerate to sandstone. Mineralization in the region formed in two stages, hypogene and supergene. Pyrite, magnetite and specularite formed in the hypogene and goethite and hematite in the later. Investigation of fO2 and temperature conditions indicated that temperature of hydrothermal minerals in the east of the area was less than 350oC. The amount of goethite and hematite in the west of the area is much less than the east and is frequently present as vein and veinlet associated with hydrothermal dolomite. The source of mineralization, hydrothermal solution in west of the area had lower sulfide and temperature but was more oxidized than the east. The result of geochemical analysis using AAS method for Fe, Mn, Mg and Ca elements indicated the highest amount of iron (30.4%) at the trench on the east of the area. Iron showed positive correlation with Mg at this location. There is also relation between the amount of these elements and the distance from the intrusive bodies. Therefore, the intrusive bodies of the area had no role in the mineralization. Total magnetic intensity (TMI) was measured at 742 stations on 2 grid of 20x5 meter. Map of TMI colour image along with contour, Reduction To the Pole (RTP) and upward continued were prepared using ER Mapper. Inspection of magnetic maps indicated distributed anomalies in the area, maybe related to the covered hornblend diorite porphyry which outcrops at about 40 meter apart. Due to the presence of hematite in limestone that correlates with anomalies Band C, magnetite mineralization at depth also may be the causative source of these magnetic anomalies. Therefore, drilling exploration at location of anomalies B and C is proposed.

Listvenites are formed during the CO2-rich fluids ultramafics interactions. Commonly, these carbonatized ultramafic rocks (especially serpentinites) are characterized by quartz and Mg-Fe-Ca carbonates assemblage. Gold mineralization in these rocks had been a new target for exploration during the past decades.There are two main ophiolitic belts in Central Iran, Dehshir-Surk-Nain belt and Jandagh-Anarak belt. Hydrothermal alterations have produced listvenites and finally birbirites (silicified serpentinites) in ultramafic members of these ophiolites. In Dehshir, listvenites and paralistvenites are outcropped along the ophiolite belt and are barren. In Surk, listvenitization is followed by bribirites formation and gold mineralization has a close association with ferrite chromites. There is pyrite mineralization in highly silicified serpentinites with Au-Hg anomaly in Nain ophiolites. In Jandagh serpentinites, talc-carbonate rocks are formed during carbonatization. Trace amounts of gold anomaly are detected in these rocks. Anarak old ophiolites have widespread listvenitization. Various minerals and ore minerals with multistage paragenesis are characteristic. In addition to geochemical anomaly, gold mineralization is detected as visible gold.