A first record of alluvial gold in the Olănești and Cheia rivers, Southern Carpathians, Romania

• Autorzy: Drăgușanu Sergiu , Tămaș Călin Gabriel , Andrii Mădălina Paula

Identyfikatory

DOI

10.7306/gq.1727

• Języki publikacji: EN

Abstrakty

EN

We provide the first scientific record and the mineralogical characterization of alluvial gold in the Olănești area, Southern Carpathians, Romania, based on field evidence, optical microscopy, and XRD, BSE and EPMA data. Chemical data were acquired on 11 alluvial gold grains from the Olănești and Cheia rivers and revealed a generally continuous variation in gold and silver content with Ag ranging from 7.31 to 19.77 wt.% and Au ranging from 80.26 to 93.16 wt.%. The source of the primary native gold is inferred to be the Cu-Au Valea lui Stan and/or the Costești As-Au shear-zone-related ore deposits located towards the north and west, respectively, of the study area.

Słowa kluczowe

EN

alluvial gold; EPMA; orogenic gold; Olănești; Southern Carpathians

• Wydawca: Państwowy Instytut Geologiczny - Państwowy Instytut Badawczy
• Czasopismo: Geological Quarterly
• Rocznik: 2024
• Tom: Vol. 68, No. 1
• Strony: art. no. 4
• Opis fizyczny: Bibliogr. 32 poz., fot., rys., tab., wykr.

Twórcy

autor

Drăgușanu Sergiu

• Department of Geology, Faculty of Biology and Geology, Babes-Bolyai University, 1, Mihail Kogalniceanu Str., 400084 Cluj-Napoca, Romania

• https://orcid.org/0009-0009-2894-017X

autor

Tămaș Călin Gabriel

• Department of Geology, Faculty of Biology and Geology, Babes-Bolyai University, 1, Mihail Kogalniceanu Str., 400084 Cluj-Napoca, Romania

• https://orcid.org/0000-0002-1782-4714

autor

Andrii Mădălina Paula

• Department of Geology, Faculty of Biology and Geology, Babes-Bolyai University, 1, Mihail Kogalniceanu Str., 400084 Cluj-Napoca, Romania

• https://orcid.org/0000-0001-9619-7554

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