Abstract
U−Pb zircon/baddeleyite ages obtained for the Korosten anorthosite-rapakivi granite complex, Ukrainian shield, suggest that different magmatic phases were emplaced during a period of ca. 30 million years as a series of distinct igneous episodes. The earliest 1789.1±2.0 Ma anorthosites were followed by 1781.3±3.2 Ma dykes of plagiogranite porphyries. The emplacement of a major rapakivi granite phase took place at 1767.4±2.2 Ma, and was followed by emplacement of layered intrusions of anorthosites, gabbronorites, diabases and ultrabasic rocks between 1761 and 1758 Ma. The minimum duration of magmatism of about 30 million years, the 6–15 million years interval between igneous pulses, and alternation of discrete episodes of basic and felsie magmatism are common features of major anorthositemangerite-charnockite-rapakivi granite complexes. Temporal distribution of igneous activity in the Korosten complex shows that the gabbro-anorthosites and the granites are not comagmatic, although they are possibly cogenetic, and that at least four portions of granitic and basic magmas were generated during a relatively long period of at least 30 million years. The time gap of about 20–25 million years between early basic and later and more voluminous granitic magmatism, characteristic of the Korosten pluton, Wiborg and Salmi batholiths, probably reflects the duration of extensional processes before the generation of large volumes of magma in the lower crust.
Similar content being viewed by others
References
Anderson JL (1983) Proterozoic anorogenic granite plutonism of North America. Geol Soc Am Mem 161:133–154
Bogatikov OA, Karpenko SF, Suhanov MK, Spiridonov VG (1987) Sm-Nd isotopic system of the anorthosite-rapakivi granite formation of the Ukrainian shield (Korosten massif) (in Russian) Dokl Akad Nauk SSSR 301:430–434
Bossart PG, Meier M, Oberli F, Steiger RH (1986) Morphology versus U−Pb systematics in zircon: a high-resolution isotopic study of a zircon population from a Variscan dike in Central Alps. Earth Planet Sci Lett 78:339–354
Doig R (1991) U−Pb Zircon dates of Morin anorthosite suite rocks, Grenville Province, Quebec. J Geol 99:729–738
Emslie RF (1991) Granitoids of rapakivi granite-anorthosite and related associations. Precambrian Res 51:173–192
Emslie RF, Hunt PA (1990) Ages and petrogenetic significance of igneous mangerite-charnockite suites associated with massif anorthosites, Grenville Province. J Geol 98:213–231
Emslie RF, Loveridge WD (1992) Fluorite-bearing Early and Middle Proterozoic granites, Okak Bay area, Labrador: geochronology, geochemistry and petrogenesis. Lithos 28:87–109
Gower CF, Ryan AB, Rivers T (1990) Mid-Proterozoic Laurentia-Baltica: an overview of its geological evolution and a summary of the contributions made by this volume. In: Gower CF, Rivers T, Ryan AB (eds) Mid-Proterozoic Laurentia-Baltica. Geol Assoc Can Spec Pap 38, pp 1–20
Gulson BK, Krogh TE (1975) Evidence for multiple intrusion, possible resetting of U−Pb ages, and new crystallization of zircons in the post-tectonic intrusions (‘rapakivi granites’) and gneisses from South Greenland. Geochim et Cosmochim Acta 39:65–82
Haapala I, Rämö OT (1991) Tectonic setting and origin of the Proterozoic rapakivi granites of southeastern Fennoscandia. Trans R Soc Edinburgh Earth Sci 83:165–171
Heaman LM, Machado N (1992) Timing and origin of midcontinent rift alkaline magmatism, North America: evidence from the Coldwell complex. Contrib Mineral Petrol 110:289–303
Heaman LM, LeCheminant AN, Rainbird RH (1992) Nature and timing of Franklin igneous events, Canada: implications for a Late Proterozoic mantle plume and break-up of Laurentia. Earth Planet Sci Lett 109:117–131
Irvine TN (1970) Heat transfer during solidification of layered intrusions. I. Sheets and sills. Can J Earth Sci 7:1031–1061
Jaffey AH, Flynn KF, Glendenin LE, Bentley WC, Essling AM (1971) Precision measurement of half-lives and specific activities of 235U and 238U. Phys Rev 4:1889–1906
Krogh TE (1973) A low-contamination method for hydrothermal decomposition of zircon and extraction of U and Pb for isotope age determinations. Geochim Cosmochim Acta 37:485–494
Krogh TE (1982a) Improved accuracy of U−Pb zircon ages using an air abrasion technique. Geochim Cosmochim Acta 46:637–649
Krogh TE (1982b) Improved accuracy of U−Pb zircon dating by selection of more concordant fractions using a high gradient magnetic separation technique. Geochim Cosmochim Acta 46:631–635
Krogh TE, Corfu F, Davis DW, Dunning GR, Heaman LM, Kamo SL, Machado N, Greenough JD, Nakamura E (1987) Precise U−Pb isotopic ages of diabase dykes and mafic to ultramafic rocks using trace amounts of baddeleyite and zircon. In: Halls HC, Fahrig WF (eds) Mafic dyke swarms, Geol Assoc Can Spec Pap 34, pp 147–152
LeCheminant AN, Roddick JC, Henderson JR, (1987) Geochronology of Archean and Early Proterozoic magmatism in the Baker Lake-Wager Bay region, NWT (abstract). Geol Assoc Can Mineral Assoc Can Program Abstr 12:66
Lichak IL (1983) Petrology of the Korosten pluton, Kiev (in Russian). Naukova Dumka, Kiev
Loveridge WD, Eade KE, Roddick JC (1987) A U−Pb age on zircon from a granite pluton, Kamilukuak Lake area, District of Keewatin, establishes a lower limit for the age of the Christopher Island Formation, Dubawnt group. In: Radiogenic age and isotopic studies, rep 1. geol Surv Can Pap 87-2, pp 67–71
Ludwig KR (1992) ISOPLOT — a plotting and regression program for radiogenic-isotope data, version 2.57. US Geol Surv Open-File Rep 91-445
Marakushev AA, Gramenitskiy EN, Lukashev AN (1989) Layering of the Korosten pluton and the occurrence of pegmatites. Int Geol Rev 31:556–573
Mattinson JM (1987) U−Pb ages of zircons: a basic examination of error propagation. Chem Geol Isot Geosci 66:151–162
Neymark LA, Amelin YV, Larin AM (1993) Pb−Nd−Sr isotopic and geochemical constraints on the origin of the 1.54 Ga Salmi rapakivi granite-anorthosite batholith (Karelia, Russia). Mineral Petrol (in press)
Rämö OT (1991) Petrogenesis of the Proterozoic rapakivi granites and related basic rocks of southeastern Fennoscandia: Nd and Pb isotopic and general geochemical constraints. Geol Surv Finl Bull 355
Römö OT, Haapala I (1991) The rapakivi granites of eastern Fennoscandia: a review with insights into their origin in the light of new Sm-Nd isotopic data. In: Gower CF, Rivers T, Ryan B (eds) Mid-Proterozoic Laurentia-Baltica. Geol Assoc Can Spec Pap 38, pp 401–415
Ryan B, Krogh TE, Heaman L, Schärer U, Philippe S, Oliver G (1991) On recent geochronological studies in the Nain province, Churchill province and Nain plutonic suite, north-central Labrador. Newfoundland Dep Mines Energy, Geol Surv Branch, Rep 91–1:257–261
Scherbak NP, Zlobenko VG, Zukov JV (1978) Catalog of isotopic dating of rocks in the Ukrainian Shield (in Russian). Naukova Dumka, Kiev
Scherbak NP, Artemenko GV, Bartnitsky EN, Verkhogliad VM, Komaristy AA, Lesnaja IM, Mitskevich NY, Ponomarenko AN, Skobelev VM, Scherbak DP (1989) Geochronological scale of Precambrian of the Ukrainian shield (in Russian). Naukova Dumka, Kiev
Simmons KR, Wiebe RA, Snyder GA, Simmons EC (1986) U−Pb zircon age of the Newark Island layered intrusion, Nain anorthosite complex, Labrador (abstract). Geol Soc Am Abstr Program 18:751
Stacey JC, Kramers JD (1975) Approximation of terrestrial lead isotope evolution by two-stage model. Earth Planet Sci Lett 26:207–221
Steiger RH, Jäger E (1977) Subcommission on geochronology: convention on the use of decay constants in geo- and cosmochronology. Earth Planet Sci Lett 36:359–362
Vaasjoki M, Rämö OT, Sakko M (1991) New U−Pb ages from the Wiborg rapakivi area: constraints on the temporal evolution of the rapakivi granite-anorthosite-diabase dyke association of southeastern Finland. Precambrian Res 51:227–243
Van Schmus (1980) Chronology of igneous rocks associated with the Penokean Orogeny in Wisconsin. Geol Soc Am Spec Pap 182:152–168
Velikoslavinsky DA, Birkis AP, Bogatikov OA, Bukharev VP, Velikoslavinsky SD, Gordienko LI, Zinchenko OV, Kivisilla YaYa, Kirs YuE, Kononov YuV, Levitsky YuF, Niin MI, Puura VA, Khvorov MI, Shustova LE (1978) The anorthosite-rapakivi granite formation of the East European platform (in Russian). Nauka, Leningrad
Windley BF (1993) Proterozoic anorogenic magmatism and its orogenic connections. J Geol Soc London 150:39–50
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Amelin, Y.V., Heaman, L.M., Verchogliad, V.M. et al. Geochronological constraints on the emplacement history of an anorthosite — rapakivi granite suite: U−Pb zircon and baddeleyite study of the Korosten complex, Ukraine. Contr. Mineral. and Petrol. 116, 411–419 (1994). https://doi.org/10.1007/BF00310908
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF00310908