INVESTIGATING THE GEOCHEMICAL DISTRIBUTION OF GOLD IN STREAM SEDIMENTS WITHIN 1:100000 GEOLOGIC SHEET OF AHAR USING BLEG METHOD

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JAHANGIRYAR FATEMEH; SIMMONDS VARTAN; MOAZZEN MOHSEN; GOLRASAN MORTEZA; RAVAGHI AHMAD

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Journal: GEOCHEMISTRY Year:2014 | Volume:3 | Issue:1 Page(s): 403-410

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Title

INVESTIGATING THE GEOCHEMICAL DISTRIBUTION OF GOLD IN STREAM SEDIMENTS WITHIN 1:100000 GEOLOGIC SHEET OF AHAR USING BLEG METHOD

Author(s)

Keywords

STREAM SEDIMENTQ2

BLEG METHODQ2

AHARQ2

GOLDQ2

ANOMALYQ2

Abstract

The study area is located in NW Iran, within the 1:100000 geologic map of AHAR. The volcanic rocks of Eocene cover the large part of the area, being intruded by granitic-granodioritic and alkali-granitic intrusions of Oligocene age, which have produced hydrothermal alterations and Cu and Au mineralization. By taking in to account the very low detection limit of BLEG METHOD for GOLD (0.1 ppb) and its rapid procedure for detecting very low contents of this metal within the STREAM SEDIMENTs, this method was chosen for studying the geochemical distribution and anomalous zones of GOLD across the AHAR sheet. 422 STREAM SEDIMENT samples were collected and their Au content was determined by Fire Assay method. After processing the obtained data, 5 anomalous zones for GOLD were identified in the northern half of the area, as well as the central and southeastern parts of the AHAR Sheet. Based on field investigation, these anomalies are related to the alkali granitic and hornblende-biotite granitic intrusions and the hydrothermally altered zones.

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APA: Copy

JAHANGIRYAR, FATEMEH, SIMMONDS, VARTAN, MOAZZEN, MOHSEN, GOLRASAN, MORTEZA, & RAVAGHI, AHMAD. (2014). INVESTIGATING THE GEOCHEMICAL DISTRIBUTION OF GOLD IN STREAM SEDIMENTS WITHIN 1:100000 GEOLOGIC SHEET OF AHAR USING BLEG METHOD. GEOCHEMISTRY, 3(1), 403-410. SID. https://sid.ir/paper/230855/en

Vancouver: Copy

JAHANGIRYAR FATEMEH, SIMMONDS VARTAN, MOAZZEN MOHSEN, GOLRASAN MORTEZA, RAVAGHI AHMAD. INVESTIGATING THE GEOCHEMICAL DISTRIBUTION OF GOLD IN STREAM SEDIMENTS WITHIN 1:100000 GEOLOGIC SHEET OF AHAR USING BLEG METHOD. GEOCHEMISTRY[Internet]. 2014;3(1):403-410. Available from: https://sid.ir/paper/230855/en

IEEE: Copy

FATEMEH JAHANGIRYAR, VARTAN SIMMONDS, MOHSEN MOAZZEN, MORTEZA GOLRASAN, and AHMAD RAVAGHI, “INVESTIGATING THE GEOCHEMICAL DISTRIBUTION OF GOLD IN STREAM SEDIMENTS WITHIN 1:100000 GEOLOGIC SHEET OF AHAR USING BLEG METHOD,” GEOCHEMISTRY, vol. 3, no. 1, pp. 403–410, 2014, [Online]. Available: https://sid.ir/paper/230855/en

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