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MAFIC INCLUSIONS AND MINGLING STRUCTURES IN APLITES OF THE OSHURKOV MASSIF (WESTERN TRANSBAIKALIA)

https://doi.org/10.5800/GT-2017-8-2-0241

Abstract

Our study of aplite dykes cross‐cutting the Oshurkov basite massif revealed drop‐shaped inclusions of the monzonite composition. These are crystallized drops of basite melts, which show traces of the interaction with the host acidic melt. The Ar‐Ar method was applied to determine the age of the aplites (114.9 Ma for biotite) and the monzonite inclusions (123.3 Ma for amphibole).

About the Authors

M. O. Rampilov
Geological Institute, Siberian Branch of RAS
Russian Federation

Candidate of Geology and Mineralogy,

6a Sakhyanova street, Ulan-Ude 670047



G. S. Ripp
Geological Institute, Siberian Branch of RAS
Russian Federation

Candidate of Geology and Mineralogy,

 



E. I. Lastochkin
Geological Institute, Siberian Branch of RAS
Russian Federation

Candidate of Geology and Mineralogy,

 



I. A. Izbrodin
Geological Institute, Siberian Branch of RAS
Russian Federation

Candidate of Geology and Mineralogy,

6a Sakhyanova street, Ulan-Ude 670047



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For citations:


Rampilov M.O., Ripp G.S., Lastochkin E.I., Izbrodin I.A. MAFIC INCLUSIONS AND MINGLING STRUCTURES IN APLITES OF THE OSHURKOV MASSIF (WESTERN TRANSBAIKALIA). Geodynamics & Tectonophysics. 2017;8(2):269-281. (In Russ.) https://doi.org/10.5800/GT-2017-8-2-0241

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