Pb-Zn-Ba mineralization from the Tazekka Pb-Zn district, eastern Morocco

• Type: Article in International Conference Proceedings Book
• Date: 2007

Authors

Noronha, F (Author) FCUP; Auajjar, J (Author) Other; Guedes, A (Author) Other; Banks, D (Author) Other

Conference proceedings International

Title: DIGGING DEEPER, VOLS 1 AND 2: DIGGING DEEPER

Pages: 1315-1318

9th Biennial Meeting of the Society for Geology Applied to Mineral Deposits

Dublin, IRELAND, AUG 20-23, 2007

Indexing

ISI Web of Knowledge - 0 Citations

Scientific classification

FOS: Natural sciences > Earth and related Environmental sciences

Other information

Authenticus ID: P-004-CY0

Abstract (EN): The Tazekka Pb-Zn district, eastern Morocco, includes both mineralized veins and stockworks in the Paleozoic basement and stratabound deposits in the Liassic carbonate cover rocks. The purpose of this study is to examine the relationship between mineralization seen in the basement and cover by combining field observations, mineralogy, fluid inclusion data and previous stable isotope data and use these information to present a unified model for the formation of the Pb-Zn ores. The results suggest that the general fluid evolution is similar in most of the deposits and is independent of host rock age. High salinity, low temperature fluids are present in the cover where they predate mineralization. The wide range of salinities suggests fluid mixing has occurred, possibly between an evaporated seawater brine and a lower salinity fluid. Sphalerite appears to be related to fluids of intermediate salinity with deposition probably associated with the mixing process. The resemblance between the results and data from other Pb-Zn ore deposits in Europe suggests water-rock interaction during downward migration of the fluids is important for ore genesis.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 4