A report on site visits to some of the largest tin deposits in Brazil, March 11-25, 1988

1988 ◽  
Author(s):  
Charles H. Thorman ◽  
Lawrence J. Drew
Keyword(s):  
Tin Deposits

Geology of tin deposits

1980 ◽  
Vol 44 (5) ◽  
pp. 770
Author(s):  
P. Černý
Keyword(s):  
Tin Deposits

Geochemistry and EPR of cassiterites from the Iberian Hercynian Massif

1997 ◽  
Vol 61 (406) ◽  
pp. 357-365 ◽  
Author(s):  
A. Murciego ◽  
A. Garcla Sanchez ◽  
Y. Dusausoy ◽  
J. M. Martin Pozas ◽  
R. Ruck
Keyword(s):  
High Temperature ◽  
Low Temperature ◽  
Microprobe Analysis ◽  
Epr Spectra ◽  
Quartz Veins ◽  
Coupled Substitution ◽  
Tin Deposits ◽  
Microprobe Data

AbstractThis paper is based on microprobe analysis (Ta, Nb, Fe, Mn, Ti, W, Sn) and Fe3+EPR spectra of cassiterite samples from 14 tin deposits from the Iberian Hercynian Massif. The interpretation of microprobe data, atomic ratios (Fe+Mn)/(Nb+Ta), and Fe3+EPR spectra reveal that the coupled substitution: 3Sn4+= (Fe,Mn)2++ 2(Nb,Ta)5+is dominant in cassiterites from pegmatites, and high-temperature quartz veins and in the dark zones of cassiterites.The mechanisms:2Sn4+= Fe3++ (Nb,Ta)5+andSn4++ O2−= Fe3++ OH−are dominant in those from medium-low temperature quartz veins and in the light zones of cassiterites.

Geology, Geochemistry and Genesis of Tungsten-Tin Deposits in the Baiganhu District in the Eastern Kunlun Domain, Northwestern China

2014 ◽  
Vol 88 (s2) ◽  
pp. 900-902
Author(s):  
Yongbao GAO ◽  
Wenyuan LI ◽  
Jian WANG ◽  
Keiko HATTORI ◽  
Zhaowei ZHANG
Keyword(s):  
Northwestern China ◽  
Tin Deposits
Sign in / Sign up

Export Citation Format

Share Document