Abstract
Phyllite and schist samples from Cape Bowles, Clarence Island, have a greenschist-facies mineralogy. Mineralogy and total rock chemistry suggest a premetamorphic lithology of arenaceous sediments derived from an acid igneous terrain. Rb/Sr isotopic data show that metamorphism occurred during the same late Cretaceous (70-100 m.y.) event recorded elsewhere in the Scotia metamorphic complex and initial 86Sr/87Sr ratios are consistent with a Mesozoic rather than Precambrian source area. (Authors' abstract) -C.N.
| Original language | English |
|---|---|
| Pages (from-to) | 49-59 |
| Number of pages | 11 |
| Journal | Instituto Antartico Chileno, Serie Cientifica |
| Volume | 30 |
| Publication status | Published - 1983 |
ASJC Scopus subject areas
- General Environmental Science
- General Earth and Planetary Sciences
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