Szczegóły publikacji
Opis bibliograficzny
Mineralogy and geochemistry of the A2 and New A2 gold deposits in the Nwe Yon–Kwinthoneze gold district, central Myanmar / Aung Myo THU, Adam PIESTRZYŃSKI, Gabriela A. KOZUB-BUDZYŃ, Krzysztof FOLTYN // W: 17th Biennial SGA Meeting [Dokument elektroniczny] : Mineral Resources in a Changing World : 28 August – 1 September 2023, Zurich, Switzerland : proceedings, Vol. 2. — Wersja do Windows. — Dane tekstowe. — [Genéve] : The Society for Geology Applied to Mineral Deposits (SGA), [2023]. — e-ISBN: 978-2-8399-4045-0. — S. 244–247. — Wymagania systemowe: Adobe Reader. — Tryb dostępu: https://sga2023.ch/wp-content/uploads/2023/10/SGA2023_Volume-... [2023-11-04]. — Bibliogr. s. 247, Abstr. — A. M. Thu - dod. afiliacja: Department of Geology, Mandalay University, Myanmar
Autorzy (4)
Dane bibliometryczne
| ID BaDAP | 149941 |
|---|---|
| Data dodania do BaDAP | 2023-11-29 |
| Rok publikacji | 2023 |
| Typ publikacji | materiały konferencyjne (aut.) |
| Otwarty dostęp |  |
Abstract
The A2 and New A2 gold deposits are located in the New Yon-Kwinthoneze gold district in central Myanmar. The ore bodies are primarily hosted in marble and gneiss, and the contact between these two host rocks. The principal ore minerals are pyrite, chalcopyrite, sphalerite, pyrrhotite, marcasite, native gold, and telluride assemblages. Native gold occurs as fissure filling, inclusions in sulphide minerals, and Au-Ag-Te associations. Gangue minerals are mostly quartz, calcite, siderite, ankerite, W-bearing rutile, and minor chlorite. The wall-rock hydrothermal alterations include silicification and carbonatization. C-O isotopic compositions suggest that the ore-forming fluids were most likely derived from magma with limited contributions from the host rocks and later mixed with the meteoric water. The δ34 S values of sulphides from the A2 and New A2 deposits are consistent with a homogeneous magmatic source. The analyses of S, C, and O isotopic data suggested that the ore-forming fluids were mainly derived from the magmatic fluids and later mixed with meteoric water in the ore-forming process.