fig04.htm

Figure 4. Schematic geological map of the central part of Pezhostrov Island, Keret' Archipelago, White Sea (prepared by E. V. Sharkov and A. V. Chistyakov using materials provided by V. L. Duk). \newline 1 - Lens- and dike-shaped bodies of garnet amphibolites; 2 - bodies of gabbronorite-lherzolites; 3 - bodies of strongly altered gabbronorites; 4 - bodies of metagabbronorite-anorthosites: (a) gabbronorite-anorthosites, (b) marginal fine- to medium-grained leucogabbronorites in the inner-contact zone of the Northern Massif; 5 - host Archean plagiomigmatites. The insets are detailed structural schemes of the coastal parts of two gabronorite-lherzolite bodies: A - southern termination of the Southern body, and B - eastern part of the Lodeinaya Bay body. 1 - Quaternary deposits; 2 - plagioclase lherzolites; 3 - olivine gabbronorites; 4 - melanocratic gabbronorites; 5 - host gneisses and migmatites; 6 - strikes and dips of lineation.


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