RE-OS SYSTEMATICS OF EARLY PROTEROZOIC FERROPICRITES, PECHENGA COMPLEX, NORTHWESTERN RUSSIA: EVIDENCE FOR ANCIENT 187OS-ENRICHED PLUMES
- DSpace Home
- →
- Геология России
- →
- ELibrary
- →
- View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.
dc.contributor.author | Walker R.J. | |
dc.contributor.author | Morgan J.W. | |
dc.contributor.author | Hanski E.J. | |
dc.contributor.author | Smolkin V.F. | |
dc.date.accessioned | 2020-12-23T08:29:06Z | |
dc.date.available | 2020-12-23T08:29:06Z | |
dc.date.issued | 1997 | |
dc.identifier | https://elibrary.ru/item.asp?id=13261036 | |
dc.identifier.citation | Geochimica et Cosmochimica Acta, 1997, , 15, 3145-3160 | |
dc.identifier.issn | 0016-7037 | |
dc.identifier.uri | https://repository.geologyscience.ru/handle/123456789/21158 | |
dc.description.abstract | The Re-Os isotopic systematics of various ferropicritic flows and sills of the Pechenga Complex, Russia, have been examined. During crystallization about 1.98 Ga ago, many of these bodies became highly differentiated. In addition, some of the larger igneous units are associated with major NiCu ore deposits. The melts that produced these rocks have been termed ferropicritic because of their high FeO and MgO contents. They are also enriched in light rare earth elements (LREEs), TiO2, Zr, and many other incompatible trace elements. Previous studies have concluded that the ferropicrites were most likely derived from an Fe-rich mantle plume that had a complex history of long-term LREE depletion (initial ϵNd = + 1.4), but that also experienced a LREE enrichment event within 200 Ma of the generation of the rocks. | |
dc.subject | Proterozoic | en |
dc.title | RE-OS SYSTEMATICS OF EARLY PROTEROZOIC FERROPICRITES, PECHENGA COMPLEX, NORTHWESTERN RUSSIA: EVIDENCE FOR ANCIENT 187OS-ENRICHED PLUMES | |
dc.type | Статья | |
dc.subject.age | Precambrian::Proterozoic | en |
dc.subject.age | Докембрий::Протерозой | ru |
Files in this item
Files | Size | Format | View |
---|---|---|---|
There are no files associated with this item. |
This item appears in the following Collection(s)
-
ELibrary
Метаданные публикаций с сайта https://www.elibrary.ru