Geochemistry, geothermometry, and K-Ar dating of episyenitic rocks associated with the Guarda uraniferous granites, Portugal

• Type: Article in International Conference Proceedings Book
• Date: 2005

Authors

Bobos, I (Author) FCUP; Jaques, L (Author) Other; Noronha, F (Author) FCUP; Clauer, N (Author) Other; Liewig, N (Author) Other

Conference proceedings International

Title: Mineral Deposit Research: Meeting the Global Challenge, Vols 1 and 2

Pages: 225-228

8th Biennial SGA Meeting

Beijing, PEOPLES R CHINA, AUG 18-21, 2005

Indexing

ISI Web of Knowledge - 2 Citations

Scientific classification

FOS: Engineering and technology > Environmental engineering

Other information

Authenticus ID: P-000-695

DOI: 10.1007/3-540-27946-6_58

Abstract (EN): The Guarda granite underwent a continuous hydrothermal alteration process from K/Na- to H- and to Ca-metasomatism. No changes of REEs distribution were observed during late-to post-magmatic processes. U remobilization and enrichment occur in the argillic zone. K-Ar ages of episyenitic rocks are around 245 Ma, whereas the argillization zone gives ages around 209 to 225 Ma.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 4