Geochemistry and genesis of igneous rocks and skarn of Shahrak iron ore (Northeast of Kurdistan)

Darbandi, Golale; Bonyadi, Zahra; Hosseini, Mehdi; Sheikhi, Reza

doi:10.1007/s12517-020-05614-1

Cited by 2 publications

(2 citation statements)

References 14 publications

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“…In XPL, it exhibited parallel extinction and displayed an interference color of blue and yellow. Opaque minerals were also observed, as reported by Darbandi et al (2020).…”

Section: Granitessupporting

confidence: 78%

Effect of mineralogy on physico-chemical and some geotechnical properties of soils developed over granite, schist, and migmatite gneiss: a case study of Minna, Central Nigeria

et al. 2021

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Results of influence of mineralogy on physico-chemical and some geotechnical properties of soils developed over granite, schist, and migmatite gneiss around Minna in central Nigeria are presented. A region around Minna was studied to obtain the structure and petrography of the rocks. Three trial pits taken to depths of 5.0, 3.5, and 4.0m were dogged within region of granites, schists, and migmatite gneiss rocks, respectively, all of which belong to Basement Complex of northern Nigeria, to study the mineralogical, physico-chemical, and some geotechnical properties of overburden soils over these rocks. In each of the trial pits, soil samples were collected at interval of 0.5m depths to terminal depths of the pits. X-ray diffraction, index properties, and compaction tests were carried out the samples, and the results were analyzed to determine the influence of mineralogy on physico-chemical and some geotechnical properties of the soils. The result showed that rate of weathering is higher in granite rocks, where primary minerals altered to secondary minerals including smectite minerals. This is followed by overburden over schists, which was observed to alter to secondary minerals like illite and kaolinite. Overburden soil over migmatite gneiss did not showed alteration to secondary minerals but conversion of the carbon element to sodium carbonate salt. Higher fines content, cation exchange capacity, and Atterberg limits, recorded from soils developed over granite rocks, probably resulted from the smectite minerals recorded within this profile. The non-plastic nature of soils, on schist rocks, despite presence of secondary minerals, and judging from the low natural moisture content observed within this profile, indicated that the minerals developed under poor drainage condition. It was therefore concluded that mineralogy of overburden soils over basement complexes and the drainage condition during formation affect their geotechnical properties.

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“…In XPL, it exhibited parallel extinction and displayed an interference color of blue and yellow. Opaque minerals were also observed, as reported by Darbandi et al (2020).…”

Section: Granitessupporting

confidence: 78%

Effect of mineralogy on physico-chemical and some geotechnical properties of soils developed over granite, schist, and migmatite gneiss: a case study of Minna, Central Nigeria

et al. 2021

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“…A total of 2636 samples, obtained from the drilling cores with a 1-meter sampling interval, were analyzed by X-ray fluorescence (XRF) and inductively coupled plasma mass spectrometry (ICPMS) methods at the Zarazma Laboratory, Iran. The sample preparation method is described in Darbandi et al (2020). The analytical procedure is performed according to the analytical procedures described by Gao et al (2003).…”

Section: Methodsmentioning

confidence: 99%

3D Modeling and Determination of Factors Responsible for Zinc‐Lead Mineralization in the Mehdiabad Deposit, Central Iran, based on Statistical Analysis of Geochemical Data

Bonyadi

2022

Acta Geologica Sinica (Eng)

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Although the Mehdiabad zinc‐lead deposit is one of the most well‐known deposits in the central Iran structural zone, the genesis of the deposit remains controversial. The host rock of the ore is a dolomitic limestone of the Lower Cretaceous Taft Formation. In the two main orebodies of the deposit, which includes the Black Hill and East Ridge ore zones, the oxide and sulfide ores are observed at the surface and at depth, respectively. The elements Zn, Fe, Mn and Mg are more abundant in the East Ridge ore zone (in both sulfide and oxide ores), with Ba, Pb, Ag and Cu being more abundant in the Black Hill oxide ore. Based on the distribution of elements and their correlation with each other in these ore zones, the elements are divided into three general groups, that of terrigenous elements, chemically‐deposited elements and ore‐forming (hydrothermally deposited) elements, a division that is supported by the results of factor analyses. The spatial distribution of elements is jointly affected by contact with host rocks, the boundary of oxide‐sulfide ores and fault zones. The main factors governing the distribution of elements are the mechanical transfer of detrital sediments, chemical sedimentation, transfer by hydrothermal fluids, oxidation and surface dissolution, all of which affected the spatial distribution of elements. The ore‐forming elements are mostly affected by hydrothermal fluids and oxidation. This study not only provides additional information about the genesis of the Mehdiabad deposit, but also could assist in the exploitation of ore and further exploration purposes. The results of this study can aid in the exploration and exploitation of the Mehdiabad deposit and similar deposits in the region.

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Geochemistry and genesis of igneous rocks and skarn of Shahrak iron ore (Northeast of Kurdistan)

Cited by 2 publications

References 14 publications

Effect of mineralogy on physico-chemical and some geotechnical properties of soils developed over granite, schist, and migmatite gneiss: a case study of Minna, Central Nigeria

Effect of mineralogy on physico-chemical and some geotechnical properties of soils developed over granite, schist, and migmatite gneiss: a case study of Minna, Central Nigeria

3D Modeling and Determination of Factors Responsible for Zinc‐Lead Mineralization in the Mehdiabad Deposit, Central Iran, based on Statistical Analysis of Geochemical Data

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