TECTONIC SETTING OF THE PLUTONIC BELTS OF YAKUTIA, NORTHEAST RUSSIA, BASED ON 40AR/39AR GEOCHRONOLOGY AND TRACE ELEMENT GEOCHEMISTRY
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dc.contributor.author | Layer P.W. | |
dc.contributor.author | Newberry R. | |
dc.contributor.author | Fujita K. | |
dc.contributor.author | Parfenov L. | |
dc.contributor.author | Trunilina V. | |
dc.contributor.author | Bakharev A. | |
dc.date.accessioned | 2021-04-06T02:07:45Z | |
dc.date.available | 2021-04-06T02:07:45Z | |
dc.date.issued | 2001 | |
dc.identifier | https://www.elibrary.ru/item.asp?id=21936439 | |
dc.identifier.citation | Geology, 2001, 29, 2, 167-170 | |
dc.identifier.issn | 0091-7613 | |
dc.identifier.uri | https://repository.geologyscience.ru/handle/123456789/27523 | |
dc.description.abstract | Samples from plutonic belts and individual intrusions in the Sakha Republic (Yakutia), northeastern Russia, were analyzed using 40Ar/39Ar geochronology and trace element geochemistry. Four phases of activity were identified: a subduction event along the southwest margin of the Kolyma-Omolon superterrane with apparent ages of ca. 160-140 Ma, a superposed collisional event dated at 143-138 Ma, a subduction event along the northern margin of the superterrane dated at 130-123 Ma with a slightly older to contemporaneous extensional event to the west; and intrusions associated with east-west extension between 106 and 92 Ma. These phases are interpreted to represents (1) subduction under and (2) accretion to Asia of Kolyma-Omolon followed by local extension, (3) subduction along the South Anyui suture and/or the start of subduction with the Okhotsk-Chekotka volcanic belt. | |
dc.subject | 40AR/39AR | |
dc.subject | GEOCHEMISTRY | |
dc.subject | GEOCHRONOLOGY | |
dc.subject | RUSSIA | |
dc.subject | TECTONICS | |
dc.subject | TERRANES | |
dc.subject | YAKUTIA REGION | |
dc.title | TECTONIC SETTING OF THE PLUTONIC BELTS OF YAKUTIA, NORTHEAST RUSSIA, BASED ON 40AR/39AR GEOCHRONOLOGY AND TRACE ELEMENT GEOCHEMISTRY | |
dc.type | Статья |
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