Szczegóły publikacji
Opis bibliograficzny
Salt mineral crystallization features in the Dawenkou Basin, China: insights from brine fluid inclusions in halite / Anatoliy R. Galamay, Fanwei Meng, Krzysztof BUKOWSKI, Wentao Chen, Le Li // Geological Quarterly ; ISSN 1641-7291 . — 2025 — vol. 69 no. 4 art. no. 37, s. 1–12. — Bibliogr. s. 11–12, Abstr. — Publikacja dostępna online od: 2025-11-13
Autorzy (5)
- Galamay Anatolyi R.
- Meng Fanwei
- AGHBukowski Krzysztof
- Chen Wentao
- Li Le
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 165826 |
|---|---|
| Data dodania do BaDAP | 2026-02-23 |
| Tekst źródłowy | URL |
| DOI | 10.7306/gq.1810 |
| Rok publikacji | 2025 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Creative Commons | |
| Czasopismo/seria | Geological Quarterly |
Abstract
The Dawenkou Basin in China is a significant Cenozoic evaporite basin containing a diverse range of salt minerals, including halite, anhydrite, glauberite, polyhalite, and various Na-Mg and K-Mg salts. This study investigates the origins of brines that contributed to salt formation in the basin, as well as the sedimentary and post-sedimentary mineralization processes, through fluid inclusion analysis in halite and sulphur-oxygen isotopic studies in anhydrite. Analysis of fluid inclusions in halite from well XZK 101 revealed both primary and secondary inclusions, with evidence of tectonic activity, recrystallization, and fluid migration. Brine compositions vary widely, with K+, Mg+, and concentrations indicating multiple stages of mineral formation and alteration. The presence of hydrocarbons and algal remnants in inclusions suggests interactions with organic material during or after salt deposition. Isotopic data (δ³⁴S and δ¹⁸O) from anhydrite show values suggesting the primary sulphate source was leached from Cambrian and Ordovician evaporites in the surrounding Yi-Meng Mountains, rather than solely from marine sources. The chemical and isotopic composition of the brines does not exclude the influence of marine transgressions during the Eocene, although the dominant input of sulphate appears to come from continental sources. The complex interplay between marine influx, tectonic processes, and continental sulphate leaching shaped the unique salt mineral assemblage observed in the basin today.
