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Figure 8. Geological map of the Kokchetav Massif compiled using the data reported in the [Geology of Northern Kazakhstan..., 1987].
(1) Cenozoic-Middle Paleozoic, (2) volcanic rocks of the Kipchak Middle-Late Ordovician ensialic island arc, (3) terrigenous rocks from the forearc basin and accretionary prism of the Middle-Late Ordovician Kipchak island arc, (4) volcanic rocks of the Stepnyak Early-Middle Ordovician mature island arc, (5) volcanogenic sedimentary and olistostrome rocks of the Stepnyak island arc, (6) Early-Middle Ordovician jaspers, (7) Early-Middle Ordovician oceanic basalts, (8) Cambrian-Early Ordovician black shale and phthanite (the shelf rocks of the Ulutau-North Tien Shan Massif), (9) undifferentiated shale and olistostrome rocks of the accretionary prisms of the Early-Middle Cambrian and Early Ordovician island arcs, (10) volcanic rocks of the Boshchekul Early-Middle Cambrian ensimatic island arc, (11) ophiolite sheets, (12-16) olistoliths and olistoplacks in olistostromes of different ages: (12) clastic quartzite of the Late Riphean Epi-Grenville sedimentary cover, (13) acid volcanics of the Late Riphean marginal volcanic belt, (14) Riphean basalt and jaspilite, (15) Proterozoic granitized metamorphic rocks, (16) eclogite, (17) Late Ordovician and Devonian granitoids, (18) basements of tectonic nappes and slabs, (19) other faults.


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