Age of the Raygorodok Au-bearing Gabbro—Monzodiorite Massif (Northern Kazakhstan)

Accessory zircon from the polyphase Raygorodok stock (Northern Kazakhstan) has been dated by local U–Pb analysis (SIMS and LA-ICP-MS). This Au-bearing intrusion has been dated to 442–447 Ma, suggesting its emplacement at the very end of the Ordovician and Early Silurian, allowing the stock’s correla...

Full description

Saved in:
Bibliographic Details
Published in:Doklady earth sciences 2018-08, Vol.481 (2), p.1033-1036
Main Authors: Zhimulev, F. I., Kalinin, Yu. A., Sukhorukov, V. P., De Pelsmaeker, E., Poujol, M., Kovalev, K. R., Glorie, S., Naumov, E. A., Seltmann, R., De Grave, J.
Format: Article
Language:English
Subjects:
Earth and Environmental Science
Earth Sciences
Exploration
Gabbro
Geochemistry
Gold
Intrusion
Mineralization
Mineralogy
Ordovician
Sciences of the Universe
Silurian
Tectonics
Zircon
Zirconium
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Accessory zircon from the polyphase Raygorodok stock (Northern Kazakhstan) has been dated by local U–Pb analysis (SIMS and LA-ICP-MS). This Au-bearing intrusion has been dated to 442–447 Ma, suggesting its emplacement at the very end of the Ordovician and Early Silurian, allowing the stock’s correlation with the Stepnyak Complex of small intrusions. Thus, control of small intrusions of the Stepnyak type over gold mineralization has been corroborated permitting their use as a regional prospecting characteristic.
ISSN:1028-334X
1531-8354
DOI:10.1134/S1028334X18080238