ULTRARAPID EXHUMATION OF ULTRAHIGH-PRESSURE DIAMOND-BEARING METASEDIMENTARY ROCKS OF THE KOKCHETAV MASSIF, KAZAKHSTAN?
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dc.contributor.author | Hacker B.R. | |
dc.contributor.author | Calvert A. | |
dc.contributor.author | Zhang R.Y. | |
dc.contributor.author | Ernst W.G. | |
dc.contributor.author | Liou J.G. | |
dc.date.accessioned | 2022-02-05T05:13:35Z | |
dc.date.available | 2022-02-05T05:13:35Z | |
dc.date.issued | 2003 | |
dc.identifier | https://elibrary.ru/item.asp?id=14215439 | |
dc.identifier.citation | Lithos, 2003, 70, 3-4, 61-75 | |
dc.identifier.issn | 0024-4937 | |
dc.identifier.uri | https://repository.geologyscience.ru/handle/123456789/35004 | |
dc.description.abstract | The diamond-bearing, ultrahigh-pressure Kokchetav Massif recrystallized at eclogite-facies conditions deep in the mantle at 180-km depth at 535 F 3 Ma, and yet new 40 Ar/ 39 Ar ages suggest that it may have been exhumed to crustal depths (as indicated by closure of mica to Ar loss) by f 529 Ma. These data indicate a possible exhumation rate of tens of kilometers per million years, i.e., a rate that is comparable to rates of horizontal plate motion and subduction. | |
dc.subject | Kokchetav Massif | |
dc.subject | Ultrahigh-pressure metamorphism | |
dc.subject | Excess argon | |
dc.subject | Exhumation rate | |
dc.title | ULTRARAPID EXHUMATION OF ULTRAHIGH-PRESSURE DIAMOND-BEARING METASEDIMENTARY ROCKS OF THE KOKCHETAV MASSIF, KAZAKHSTAN? | |
dc.type | Статья |
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