Geochemistry of tin-bearing granitic rocks

Saved in:
Online Access: Get full text
doi: 10.1016/0009-2541(84)90052-4
Authors:Neiva, A. M. R.
Author Affiliations:Primary:
Univ. Coimbra, Dep. Mineral. and Geol., Coimbra, Portugal
Volume Title:Chemical Geology
Source:Chemical Geology, 43(3-4), p.241-256. Publisher: Elsevier, Amsterdam, Netherlands. ISSN: 0009-2541
Publication Date:1984
Note:In English. 32 refs.; illus. incl. 5 tables
Summary:The ternary relation between Rb, Ba and Cs is useful to distinguish between Sn-bearing granitic rocks and non-mineralized granitic rocks. The Sn-bearing granitic rocks are late differentiates of anatectic melts (S-type), with primary albite and muscovite, and greisenized granites with metasomatic albite and muscovite. They have high Sn, Rb contents, Rb/Ba and Rb/Sr ratios, and low Ba and Sr contents. F and Sn of muscovites from Portuguese Sn-bearing granitic rocks are positively correlated. Cassiterite crystallization seems to be independent of f H2O/fHF and favored by a decrease in f O2. [P.Br.]
Subjects:Albite; Alkali metals; Aplite; Cesium; Feldspar group; Framework silicates; Geochemistry; Granites; Granitic composition; Igneous rocks; Iron; Metal ores; Metals; Metasomatism; Mica group; Muscovite; Pegmatite; Plagioclase; Plutonic rocks; Properties; Rb/Sr; Sheet silicates; Silicates; Thermodynamic properties; Tin ores; Trace elements; Europe; France; Iberian Peninsula; Portugal; Southern Europe; Western Europe; Alijo; Anatectic melts; Northern Portugal; Rb/Ba; Sanfins
Coordinates:N400000 N420000 W0070000 W0090000
Abstract Numbers:84M/4098
Record ID:1985013745
Copyright Information:GeoRef, Copyright 2019 American Geosciences Institute.
Tags: Add Tag
No Tags, Be the first to tag this record!