Title | Geochemistry of dike rocks of the Argentine Islands and the near area of the Antarctic Peninsula (Western Antractica) |
Publication Type | Journal Article |
Year of Publication | 2018 |
Authors | Artemenko, GV |
Abbreviated Key Title | Dopov. Nac. akad. nauk Ukr. |
DOI | 10.15407/dopovidi2018.06.073 |
Issue | 6 |
Section | Geosciences |
Pagination | 73-82 |
Date Published | 6/2018 |
Language | Russian |
Abstract | The dike rocks in the area of the Argentine Islands and the near part of the Antarctic Peninsula by geochemical characteristics are mature island-arc matter of calc-alkaline formations that were formed moderate depths due to the melting of a metasomatic mantle source. The primitive (outgoing) melts are, probably, close by the composition to high-magnesium dike rocks. Variations in the composition of dike basites can be associa ted with the fractional crystallization with clinopyroxene admixtures dominant in liquidase to ∼ 5% by weight, and after — plagioclase, hornblende, and ore minerals (probably, titanomagntite). The products of deep mantle (plum) sources in the selected samples were not detected. |
Keywords | Antarctic Peninsula, Argentine Islands, cumulates, dikes, multielement diagram, REE |
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