Episyenitization and hydrothermal alteration in the Guarda granites from the uraniferous province of Portugal - Preliminary data

• Type: Article in International Conference Proceedings Book
• Date: 2003

Authors

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

Conference proceedings International

Title: MINERAL EXPLORATION AND SUSTAINABLE DEVELOPMENT, VOLS 1 AND 2

Pages: 287-289

7th Biennial SGA Meeting

Athens, GREECE, AUG 24-28, 2003

Indexing

ISI Web of Knowledge - 1 Citation

Scientific classification

FOS: Engineering and technology > Environmental engineering

Other information

Authenticus ID: P-000-K5D

Abstract (EN): Hercynian granitic rocks with secondary silica depletion and K+/Na+ exchange metasomatism (episyenite) were mineralogical and petrographycal studied by optical and electron microscopy. Several mineral reactions during subsolidus to post-magmatic alteration (i.e.: albitization and microclinization of feldspars, sericitization of feldspars and muscovite, chloritization of magmatic biotite, calcitization of plagioclases) were investigated by electron microprobe analysis.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 3