Delineation of ore zones using the concentration-volume fractal method in the Dagh Dali Zn-Pb (±Au) prospect, north of Takab (Iran)

• Autorzy: Motlagh Zahra Yekani , Imamalipour Ali , Bazdar Habibollah

Identyfikatory

DOI

10.7306/gq.1531

• Języki publikacji: EN

Abstrakty

EN

The Dagh Dali Zn-Pb (±Au) hydrothermal prospect is located in the north-west of Iran. Identification of mineralized zones is essential in ore deposit exploration. Different methods have been developed and applied to separate mineralized zones from barren host rocks based on mineralogical and petrographical studies, alteration and host rock changes as well as statistical and geostatistical parameters. This study uses the ordinary kriging technique and the concentration-volume fractal (C-V) method to model the ore body and recognize the ore grade distribution. These techniques were applied on the drillcore data and C-V fractal modelling, values of various ore zones being determined. Four breakpoints were found in the log-log plots which correspond to concentrations of 5.4, 10.5, and 17.8 wt.% Zn. The extractable ore zone for Zn is considered to be in the concentaration range of 5.4 to 17.8 wt.%. Compared to the amount of reserve obtained from the geostatistical method (303,685 tons), it seems that the fractal method is more precise and accurate in the estimation of ore reserves.

Słowa kluczowe

EN

ore zone; concentration-volume; C-V; fractal method; kriging; micromine software; Dagh Dali

• Wydawca: Państwowy Instytut Geologiczny - Państwowy Instytut Badawczy
• Czasopismo: Geological Quarterly
• Rocznik: 2020
• Tom: Vol. 64, No. 2
• Strony: 275--287
• Opis fizyczny: Bibliogr. 37 poz., rys., tab., wykr.

Twórcy

autor

Motlagh Zahra Yekani

• Urmia University, Department of Mining Engineering, 57153-165 Urmia, Islamic Republic of Iran

autor

Imamalipour Ali

• Urmia University, Department of Mining Engineering, 57153-165 Urmia, Islamic Republic of Iran

autor

Bazdar Habibollah

• Urmia University, Department of Mining Engineering, 57153-165 Urmia, Islamic Republic of Iran

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021).