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

IF 0.9 4区地球科学 Q3 GEOLOGY

Geological Quarterly Pub Date : 2024-04-25 DOI:10.7306/gq.1727

Sergiu Drăgușanu, Călin Gabriel Tămaș, Mădălina Paula Andrii

引用次数: 0

Abstract

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.

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罗马尼亚南喀尔巴阡山脉奥勒涅西蒂河和切亚河冲积金的首次记录

我们基于实地证据、光学显微镜以及 XRD、BSE 和 EPMA 数据，首次对罗马尼亚南喀尔巴阡山脉奥勒涅日地区的砂金进行了科学记录和矿物学特征描述。从 Olănești 河和 Cheia 河中获取了 11 个砂金颗粒的化学数据，结果显示金银含量总体上呈连续变化，其中银的含量从 7.31 到 19.77 wt.%不等，金的含量从 80.26 到 93.16 wt.%不等。据推断，原生金的来源是分别位于研究区北部和西部的 Valea lui Stan 铜金矿床和/或 Costești As-Au 剪切带相关矿床。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Geological Quarterly 地学-地质学

CiteScore

2.20

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： The policy of the Geological Quarterly is to publish significant contributions of information and geological insight relevant to an international readership. The journal has been issued since 1957 at the Polish Geological Institute - National Research Institute and, at present, is the leading Earth sciences journal in Poland. All aspects of Earth and related sciences, and universal and broad regional rather than locally oriented topics are covered. The journal is intended to be an international forum for the exchange of information and ideas, particularly on important geological topics of Central Europe.