Geochronology and formation subdivisions of the lower precambrian in the Northwestern Ladoga region

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Geochronology and formation subdivisions of the lower precambrian in the Northwestern Ladoga region. / Shuldiner, V. I.; Kozyreva, I. V.; Baltybaev, Sh K.

в: Stratigraphy and Geological Correlation, Том 4, № 3, 1996, стр. 220-230.

Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование

Author

Shuldiner, V. I. ; Kozyreva, I. V. ; Baltybaev, Sh K. / Geochronology and formation subdivisions of the lower precambrian in the Northwestern Ladoga region. в: Stratigraphy and Geological Correlation. 1996 ; Том 4, № 3. стр. 220-230.

BibTeX

@article{790ef26b41424b3395769e4c24e92284,

title = "Geochronology and formation subdivisions of the lower precambrian in the Northwestern Ladoga region",

abstract = "A brief geological review of the northwestern Ladoga region and systematics of the Lower Precambrian subdivisions in this territory are presented. The respective stratigraphic scale and supplementary geologic scheme include the following stratigraphic and metamorphic units applicable in cartography: (1) the 2700-Ma-old North Ladoga granite-gneiss association of the Archean; (2) the Sortavala Group with lower metaclastic and upper metatholeiitic subgroups of the Lower Karelian (Jatulian, Ludicovian), which are 2120-1980 Ma old; and (3) the Ladoga Group of the Upper Karelian (Kalevian) metaturbidites, which are 1910-1880 Ma old. Eight metamorphic suites of the Lahdenpohja Group are referred to the undivided Ludicovian-Kalevian. The Late Karelian plutonic rocks are subdivided into the following units: the Kurkijoki and Lauvatsaari-Impinierni complexes of the early orogenic stage (1880-1860 Ma) represented by metanorite-enderbite and metadioritetonalite associations respectively; the Tervu metadiorite-granite complex of the late orogenic stage (1830-1810Ma); and the Ojaj{\"a}rvi monzonite-granite association (1800-1760 Ma) of postorogenic origin. Geological relations between these subdivisions in metamorphic zones of the Ladoga region and pertinent geochronological problems are discussed.",

keywords = "Archean, Karelian, Ladoga region, Lower Proterozoic, Ludicovian, Magmatism, Metamorphism, Regional subdivision scheme, Stratigraphy",

author = "Shuldiner, {V. I.} and Kozyreva, {I. V.} and Baltybaev, {Sh K.}",

year = "1996",

language = "English",

volume = "4",

pages = "220--230",

journal = "Stratigraphy and Geological Correlation",

issn = "0869-5938",

publisher = "МАИК {"}Наука/Интерпериодика{"}",

number = "3",

}

RIS

TY - JOUR

T1 - Geochronology and formation subdivisions of the lower precambrian in the Northwestern Ladoga region

AU - Shuldiner, V. I.

AU - Kozyreva, I. V.

AU - Baltybaev, Sh K.

PY - 1996

Y1 - 1996

N2 - A brief geological review of the northwestern Ladoga region and systematics of the Lower Precambrian subdivisions in this territory are presented. The respective stratigraphic scale and supplementary geologic scheme include the following stratigraphic and metamorphic units applicable in cartography: (1) the 2700-Ma-old North Ladoga granite-gneiss association of the Archean; (2) the Sortavala Group with lower metaclastic and upper metatholeiitic subgroups of the Lower Karelian (Jatulian, Ludicovian), which are 2120-1980 Ma old; and (3) the Ladoga Group of the Upper Karelian (Kalevian) metaturbidites, which are 1910-1880 Ma old. Eight metamorphic suites of the Lahdenpohja Group are referred to the undivided Ludicovian-Kalevian. The Late Karelian plutonic rocks are subdivided into the following units: the Kurkijoki and Lauvatsaari-Impinierni complexes of the early orogenic stage (1880-1860 Ma) represented by metanorite-enderbite and metadioritetonalite associations respectively; the Tervu metadiorite-granite complex of the late orogenic stage (1830-1810Ma); and the Ojajärvi monzonite-granite association (1800-1760 Ma) of postorogenic origin. Geological relations between these subdivisions in metamorphic zones of the Ladoga region and pertinent geochronological problems are discussed.

AB - A brief geological review of the northwestern Ladoga region and systematics of the Lower Precambrian subdivisions in this territory are presented. The respective stratigraphic scale and supplementary geologic scheme include the following stratigraphic and metamorphic units applicable in cartography: (1) the 2700-Ma-old North Ladoga granite-gneiss association of the Archean; (2) the Sortavala Group with lower metaclastic and upper metatholeiitic subgroups of the Lower Karelian (Jatulian, Ludicovian), which are 2120-1980 Ma old; and (3) the Ladoga Group of the Upper Karelian (Kalevian) metaturbidites, which are 1910-1880 Ma old. Eight metamorphic suites of the Lahdenpohja Group are referred to the undivided Ludicovian-Kalevian. The Late Karelian plutonic rocks are subdivided into the following units: the Kurkijoki and Lauvatsaari-Impinierni complexes of the early orogenic stage (1880-1860 Ma) represented by metanorite-enderbite and metadioritetonalite associations respectively; the Tervu metadiorite-granite complex of the late orogenic stage (1830-1810Ma); and the Ojajärvi monzonite-granite association (1800-1760 Ma) of postorogenic origin. Geological relations between these subdivisions in metamorphic zones of the Ladoga region and pertinent geochronological problems are discussed.

KW - Archean

KW - Karelian

KW - Ladoga region

KW - Lower Proterozoic

KW - Ludicovian

KW - Magmatism

KW - Metamorphism

KW - Regional subdivision scheme

KW - Stratigraphy

UR - http://www.scopus.com/inward/record.url?scp=4544374386&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:4544374386

VL - 4

SP - 220

EP - 230

JO - Stratigraphy and Geological Correlation

JF - Stratigraphy and Geological Correlation

SN - 0869-5938

IS - 3

ER -

ID: 93117026