GEICHEMICAL EXPLORATION AND HEAVY MINERAL STUDY OF STREAM SEDIMENTS IN BARANDAGH QUADRANGLE, NE OF ZANDJAN, IRAN

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HADI ZADEH HOSSEIN; KALAGARI A.A.; ABEDINI ALI

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Journal: GEOSCIENCES Year:2007 | Volume:16 | Issue:62 Page(s): 102-115

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Information Journal Paper

Title

GEICHEMICAL EXPLORATION AND HEAVY MINERAL STUDY OF STREAM SEDIMENTS IN BARANDAGH QUADRANGLE, NE OF ZANDJAN, IRAN

Author(s)

HADI ZADEH HOSSEIN | KALAGARI A.A. | ABEDINI ALI | Issue Writer Certificate

Keywords

GEOCHEMICAL ANOMALIESQ2

HEAVY MINERALSQ4

THE GHEZEL-OZAN RIVERQ3

BARANDAGH QUADRANGLEQ3

Abstract

Barandagh quadrangle (1:50000), a part of Tarom-Hashtjin polymetallic district, is located in NE of Zanjan and SE of Ardabil. The results of preliminary regional geochemical explorations have led to the discovery of anomalous areas for a varietyof elements. The anomalies were verified by studies on HEAVY MINERALS in stream sediments and mineralized and altered samples taken from the surface outcrops. The identified HEAVY MINERALS are hematite, goethite, pyrite, barite, limonite, native copper, native zinc, native lead, malachite, molybdenite, micaceous hematite, limonite, cerussite, galena, smithsonite, marcasite, chrysocolla, rutile, zircon, pyroxene, amphibole, and apatite. The identified heavy metallic minerals are principally affiliated with zones of widespread alterations and dispersed veinlet-type mineralization. Chemical analysis of some litho geochemical samples from the anomalous areas shows noticeable assays for elements such as Ba, Zn, Cu, Sr, Mo, and Be. The majority of anomalous areas are intimately associated with alteration zones in the region. Based on field evidence and mineralogical studies, the alterations are categorized into two discrete types, (1) acid-sulfate alterations (e.g., silisified, alunitized, advanced argillic, phyllic, and propylitic) which are related to shear zones and (2) alterations developedin neutral pH conditions (e.g., argillic, calc-silicate-bearing, and zeolitized) cropped out along the margin of Ghezel-Ozanriver. Combination of the overall obtained data from chemical analyses, study of the HEAVY MINERALS, petrography of mineralized and altered samples, and field relations led to identification often anomalous spots that some, in south and along the margin of THE GHEZEL-OZAN RIVER, have more potential for ore deposits. The comparison of final anomaly map with the map of fault density depicts that there exists a good correlation between them that may indicate that the fault and shear zones have played a crucial role in creation of these anomalies. Finally the overall results obtained from geochemical investigations in Barandagh show that the identified anomalies belong chiefly to elements such as Sn, Sb, As, Ag, W, Au, Bi, and Pb that can be used as tracer for exploration of epithermal gold and silver and of polymetal (Au, Ag, Cu, Pb, Zn) deposits.

Cites

MINERALOGY, TYPE, AND METALLOGENIC POTENTIAL OF ALTERATION ZONES IN BARANDAGH QUADRANGLE, NE ZANDJAN, IRAN

References

MINERALOGY, TYPE, AND METALLOGENIC POTENTIAL OF ALTERATION ZONES IN BARANDAGH QUADRANGLE, NE ZANDJAN, IRAN

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APA: Copy

HADI ZADEH, HOSSEIN, KALAGARI, A.A., & ABEDINI, ALI. (2007). GEICHEMICAL EXPLORATION AND HEAVY MINERAL STUDY OF STREAM SEDIMENTS IN BARANDAGH QUADRANGLE, NE OF ZANDJAN, IRAN. GEOSCIENCES, 16(62), 102-115. SID. https://sid.ir/paper/31927/en

Vancouver: Copy

HADI ZADEH HOSSEIN, KALAGARI A.A., ABEDINI ALI. GEICHEMICAL EXPLORATION AND HEAVY MINERAL STUDY OF STREAM SEDIMENTS IN BARANDAGH QUADRANGLE, NE OF ZANDJAN, IRAN. GEOSCIENCES[Internet]. 2007;16(62):102-115. Available from: https://sid.ir/paper/31927/en

IEEE: Copy

HOSSEIN HADI ZADEH, A.A. KALAGARI, and ALI ABEDINI, “GEICHEMICAL EXPLORATION AND HEAVY MINERAL STUDY OF STREAM SEDIMENTS IN BARANDAGH QUADRANGLE, NE OF ZANDJAN, IRAN,” GEOSCIENCES, vol. 16, no. 62, pp. 102–115, 2007, [Online]. Available: https://sid.ir/paper/31927/en

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