...Fig. 4. Rb-Sr isochrons for rocks and minerals from the Lower Ingoda batholith. 1 — granodiorite, 2 — granites, 3 — veined aplite-like leucogranites, 4 — plagioclases, 5 — biotites. Black symbols show the isotopic compositions of granite 95-6a, and gray ones, granite 95-6...

...Fig. 2. SiO 2 –(Na 2 O + K 2 O) classification diagram for Paleozoic granitoids of the West Stanovoy SFZ. Kr — Krestovsky Massif; SLIB — southern Lower Ingoda batholith; NLIB — northern Lower Ingoda batholith; UT — Ulentui-Torga site; VD — Vershino-Darasunsky Massif; Ya — Yamnaya Massif; MB...

... extraction–atomic-absorption analysis and mass spectrometry with inductively coupled plasma (Element-2 mass spectrometer). High gold concentrations (on average, 0.0043 ppm) are typical of the most widespread hornblende-biotite granodiorites and granites of the main phases of batholith intrusions in the Upper...

... of Ingoda and Usugli rift zones in East Transbaikalia, respectively ( Kazimirovskii et al., 2001 ; unpublished data by Peretyazhko et al.); 8-10, matrix glasses in samples MN-1139 ( 8 ), MN-576 and MN-1107 ( 9 ), MN-1141 ( 10 ); 11 , glasses of melt inclusions in quartz from trachyrhyolites ( Peretyazhko...

... . Kazimirovsky , M.E. , 1996 . Geochemistry and petrology of Late Mesozoic rifting magmatic rocks of Transbaikalia (Nercha-Ingoda rifting zone): PdDThesis . Irkutsk . Kazimirovsky , M.E. , Sandimirova , G.P. , Pakhol’chenko , Y.A. , 2001...

... *   300 ± 3 (U–Pb) ( Kuibida et al., 2009 )     Asubulak Spodumene pegmatites 291–294 (Ar–Ar) ( Kruk et al., 2007 )     Granites of the K alba–Narym batholith Postgranitic dikes and granite-porphyry   290–270 (Ar–Ar) ( Kotler et al., 2012 ; Navozov et al., 2011 )         268 ± 2...