Anomaly mine

Geographical location of Anomaly mine

The northern anomaly is located at a distance of 10 km northwest of Choghart mine. The geographic coordinates of this region are 6’46◦31 north latitude and 12’26◦55 east longitude.
The northern anomaly is located on the eastern edge of Hasanabad village and at a height of 300 to 350 meters above the village level. The height above the sea level is 1150 to 1200 meters.

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In general, this region is classified as dry and desert climate due to its location between the central desert and the Lut desert.
The temperature reaches a maximum of +45 degrees Celsius in summer and a minimum of -10 degrees Celsius in winter. Annual rainfall is erratic and less than 50-100 mm, mostly in winter and early spring. Because the wind is mostly from the south-east to the north-west, which generally creates sand dunes.

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Access roads to the target area are through the Bafq-Choghart-Bahabad asphalt road, which includes a total of 13.5 km of asphalt road and about 10 km of dust road, which is separated from the Bafq-Choghart road in the northwest direction. The nearest railway station to Anomaly mine is Northern Bafq-Mashhad station at a distance of 10 km.
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The required water supply is done through the transportation of tankers from Bafq, and also the electricity supply in the area of the mine is done through diesel generators.
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Due to the proximity of the city and the availability of suitable welfare and residential facilities, provision of specialized and semi-skilled manpower as well as labor force is easily possible.

The type and volume of exploratory operations have been carried out

The first studies related to the northern anomaly were conducted in 1960-1961, when West German specialists conducted preliminary geophysical studies and drilling operations in the region. Their geophysical studies by magnetometry led to the determination of three surface anomaly centers with intensities of 5000, 6000 and 2000 gamma. The amount of reserves estimated by these experts was from 150 to 280 million tons. During the years 1969-1974, Russian and Iranian geologists conducted geophysical and geological studies in the northern anomaly. The result of these studies led to the preparation of geological maps and geophysical maps with a scale of 1:5000. Through the studies, it was determined that the northern anomaly consists of three separate parts, namely the western, central and eastern parts. During the years 1969-1974, to study the obtained anomalies, 3 boreholes with a total length of 1117 meters were dug. By drilling these boreholes, it was found that these anomalies are composed of several parts of poor menite ores with a grade of 37.23 to 04.31%. During the years 1975-1977, in order to conduct further studies on the obtained anomalies and following the previous studies, seven more boreholes were drilled for a total of 2430 meters and a trench with a length of 5.148 meters on profile V, as well as conducting geophysical studies. (using magnetometry and gravity methods) to determine the best points for the next excavations. Exploratory studies conducted in 1969-1977 showed that the northern anomaly consists of wide and thick metasomatite zones with meniteite mineralizations and in some areas, meniteite-rich masses. The inferred reserve of iron calculated up to a depth of 600 meters is more than 256 million tons (in the C2 category) with an average grade of Fe = 47.28%, P = 0.12% and S = 0.08% (Technoexport, 1984). In the final stage of explorations carried out in 1981-1982, another 3704 meter long boreholes were drilled, samples were taken, and geophysical studies were carried out. Due to the fact that most of the field is covered with sediments, the main method of exploration in all stages has been drilling boreholes. During the conducted studies, a total of 19 boreholes of 7,241 meters and 9 boreholes in the final stage (1981-1982) of 3,704 meters have been dug. Most of the boreholes have been drilled along profiles perpendicular to the direction of the expansion of the mineralization zone. The main volume of excavations (13 boreholes of 4,950 meters) is concentrated in the western part of the field, for this reason that the structure of the field, the shape of the masses, their morphology and internal structure have been better studied. The results of drilling in other parts (central and eastern) have proved the correctness of the geological structure and have caused the generalization of the information obtained from the western part to these parts.

North Anomaly mining section

The contractor of North Anomaly Mine's crushing section is Aria South Iranian Company, which on 20/4/2021, contract number 1111/99 with the subject of "design, supply of equipment, installation, construction and commissioning and operation of the enrichment line with a feeding capacity of 4 million tons per year and loading, weighing, transportation and storage of iron ore products stored in North Anomaly iron ore mine using EPCF method was notified to the above company; The duration of services and operations subject to the contract is 60 solar months from the date of notification of the contract.