Isotope geochemistry of the mafic dikes from the Vazante nonsulfide zinc deposit, Brazil

2005 ◽  
Vol 18 (3-4) ◽  
pp. 293-304 ◽  
Author(s):  
M. Babinski ◽  
L.V.S. Monteiro ◽  
A.H. Fetter ◽  
J.S. Bettencourt ◽  
T.F. Oliveira
Keyword(s):  
Isotope Geochemistry ◽  
Zinc Deposit ◽  
Nonsulfide Zinc

The Padaeng Supergene Nonsulfide Zinc Deposit, Mae Sod, Thailand

2003 ◽  
Vol 98 (4) ◽  
pp. 773-785 ◽  
Author(s):  
N. A. Reynolds ◽  
T. W. Chisnall ◽  
K. Kaewsang ◽  
C. Keesaneyabutr ◽  
T. Taksavasu
Keyword(s):  
Zinc Deposit ◽  
Nonsulfide Zinc

The Nonsulfide Zinc Deposit at Accha (Southern Peru): Geological and Mineralogical Characterization

2009 ◽  
Vol 104 (2) ◽  
pp. 267-289 ◽  
Author(s):  
M. Boni ◽  
G. Balassone ◽  
V. Arseneau ◽  
P. Schmidt
Keyword(s):  
Mineralogical Characterization ◽  
Zinc Deposit ◽  
Southern Peru ◽  
Nonsulfide Zinc

The Karst-Hosted Mina Grande Nonsulfide Zinc Deposit, Bongará District (Amazonas Region, Peru)

2017 ◽  
Vol 112 (5) ◽  
pp. 1089-1110 ◽  
Author(s):  
G. Arfè ◽  
N. Mondillo ◽  
M. Boni ◽  
G. Balassone ◽  
M. Joachimski ◽  
...  
Keyword(s):  
Zinc Deposit ◽  
Nonsulfide Zinc

In search of the lost zinc: A lesson from the Jabali (Yemen) nonsulfide zinc deposit

2011 ◽  
Vol 108 (3) ◽  
pp. 209-219 ◽  
Author(s):  
N. Mondillo ◽  
M. Boni ◽  
G. Balassone ◽  
B. Grist
Keyword(s):  
Zinc Deposit ◽  
Nonsulfide Zinc

The first results of isotopic (U-Pb, ID-TIMS) dating of individual zircon grains from dolerite dikes of the Eastern zone of the Urals

LITOSFERA ◽  
2020 ◽  
Vol 20 (2) ◽  
pp. 224-230
Author(s):  
V. N. Smirnov ◽  
K. S. Ivanov ◽  
T. V. Bayanova
Keyword(s):  
Isotope Geochemistry ◽  
Early Carboniferous ◽  
Dynamic Mode ◽  
Middle Urals ◽  
Volcanic Complex ◽  
The Urals ◽  
Electron Multiplier ◽  
The Middle Urals ◽  
Eastern Zone ◽  
First Results

Research subject. The article presents the results of dating two dolerite dikes differing in geochemical features from a section along the Iset river in the area of Smolinskoe settlement (the Eastern zone of the Middle Urals). Materials and methods. The dating was performed by an U-Pb ID-TIMS technique for single zircon grains using an artificial 205Pb/235U tracer in the laboratory of geochronology and isotope geochemistry of the Geological Institute of the Kola Science Centre of the Russian Academy of Sciences. The lead isotopic composition and uranium and lead concentrations were measured using a Finnigan-MAT (RPQ) seven-channel mass spectrometer in dynamic mode using a secondary electron multiplier and RPQ quadrupole in ion counting mode. Results. The dikes were dated 330 ± 3 Ma and 240 ± 2 Ma. Conclusions. The research results indicate different ages of dolerite dikes developed within the Eastern zone of the Middle Urals. The oldest of the two established age levels corresponds to the Early Carboniferous era. This fact, along with the proximity of the dolerites to the petrochemical features of the basaltoids of the Early Carboniferous Beklenischevsky volcanic complex, allows these bodies to be considered as hypabyssal comagmates of these volcanics. The youngest obtained age level – Triassic – indicates that the introduction of some dolerite dikes was associated with the final phases of the trapp formation developed rarely within the eastern outskirts of the Urals and widely further east in the foundation (pre-Jurassic basement) of the West-Siberian Plate.

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