Scholarly record
REGULARITIES OF FORMATION OF THE PALEOPROTEROZOIC GROUP OF DEPOSITS OF THE ALDAN GRANULITIC-GNEISSIC AREA ACCORDING TO COMPLEX DATA
Abstract
Combination of domes and synform structures is a normal structural paragenesis of the Precambrian granulitic terranes. Structure of ore fields depends on deformations, related to granitic-domical tectonics. Deposits are usually confined to synforms framing domes. Such localization indicates motion and concentration of ore material in connection with tectonic transport on shoulders of emerged domes and transformations of rocks as a result of effect of rheomorphic granitoid mass [1]. Deposits of iron (with cobalt and copper) [2], phlogopite, marble, graphite and garnet are found in the areas of synformal structures of the Aldan granulitic-gneissic area, as well as diamonds [3], gold [4], chromspinellite and minerals of rare-earth and radioactive metals. These features suppose involvement of mantle material in formation of synformal structures. Rocks of the lower crust and complex dykes from synformal structures are studied. Based on results of the study and generalization of isotopic, geochemical and petrologic data, the role of mantle material in formation of wide range of deposits is shown.
Publication Impact Profile
Publication details
References15
Rundqvist D.V., Mints M.V., Larin A.M., Nenakhov V.M., Rytsk E.Ju., Turchenko S.I., Chernyshov N.M. Metallogeny of the series geodynamic situations at early Precambrian, in Russian, 1999, 399 p.
Pertsev N.N., Kulakovsky A.A. Iron-bearing complex of the Central Aldan: polymetamorphism and structural evolution, in Russian, 1988, 237 p.
Pertsev N.N., Marakushev A.A., Mokhov A.V., Laputina I.P. Occurrence of diamondiferous rocks in the earth's crust / Russian Geology, 2000, iss. 1, pp. 24-28.
Kravchenko A.A., Smelov A.P., Beryozkin V.I., Popov N.V. Geology and Genesis of Precambrian gold-bearing metabasites of the Central part of the Aldan-Stanovoy shield (on the example of P.Pinigim deposit), in Russian, 2010, 148 p.
Smelov A.P., Timofeev V.F. The terrain analysis and the geodynamical model of the North Asian craton in Early Precambrian / Russian Journal of Pacific Geology, vol. 22, iss. 6, pp. 42-54.
Parfenov L.M., Kuz'min M.I. (Eds.) Tectonics, Geodynamics, and Metallogeny of the Sakha Republic (Yakutia), in Russian, 2001, 571 p.
Afanas'ev V.P., Lobanov S.S., Pokhilenko N.P., Koptil' V.I., Mityukhin S.I., Gerasimchuk A.V., Pomazanskii B.S., Gorev N.I. Polygenesis of diamonds in the Siberian Platform / Russian geology and Geophysics, 2011, vol. 52, iss. 3, pp. 259-274.
Dook V.L., Gusakova I.N., Pavlov S.N., Velikoslavinsky S.D., Verkhalo-Uzkiy V.N. Geology and Petrology of Ungra metagabbro-plagiogranite complex / Early Precambrian of Aldan massif and its framing, in Russian, 1985, pp 20-34.
Velikoslavinskii S.D., Kotov A.B., Tolmacheva E.V., Sal'nikova E.B., Kovach V.P., Larin A.M. Early Precambrian granite-gneiss complexes in the Central Aldan Shield / Petrology, Russia, 2011, vol. 19, iss. 4, pp. 382-398.
LeBas M.J., LeMaitre R.W., Streckeisen A., Zanettin B. A chemical classification of volcanic rocks based on the total alkalisilica diagram / J. Petrology, United Kingdom, 1986, vol. 27, pp 745-750.
Sun S.S., McDonough W.F. Chemical and isotopic systematic of oceanic basalts: implications for mantle composition and processes / Eds. Saunders A.D., Norry M.J. Magmatism in the oceanic basins, Geol. Soc. of America Spec. Publ., 1989, vol. 42, pp. 313-345.
Condie K. High field strength element ratios in Archean basalts: a window to evolving sources of mantle plumes? / Lithos, Netherlands, 2005, vol. 79, iss. 3-4, pp. 491-504.
Frost B.R., Barnes C.G., Collins W.J. Arculus R.J., Ellis D.J., Frost C.D. A geochemical classification for granitic rocks / J. Petrology, United Kingdom, 2001, vol. 42 (11), pp. 2033-2048.
Smelov A.P. Metamorphism in Archean and Proterozoic of the Aldan-Stanovoy Shield / Dissertation of doctor of geological and mineralogical Sciences, in Russian, 1996, 445 p.
Goshko E.Yu, Efimov A.S., Sal'nikov A.S. The recent structure and the assumed history of formation of the crust in the south-eastern segment of the Noth Asian craton along Reference Profile 3-DV / Geodynamics & Tectonophysics, Russia, vol. 5 (3), 2014, pp. 785-798.
View or Download full articleAccess options
SWS access login
Login as SWS Scientific CommitteeLogin as SWS Scientific PartnerLogin as SWS AuthorAuthors and approved SWS contributors will read and export their own linked papers after identity matching by SWS profile, email and SGEM GlobalID.
For librarian assistance: [email protected]
Purchase Instant Access
- Article can be downloaded after successful payment.
- Article may be used according to SWS library access terms.
- Article cannot be redistributed.
