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Details for article 11 of 13 found articles
| Title: |
Tectonic implications of the immobile trace-element geochemistry of mafic rocks bounding the Wonaminta Block |
| Author: |
Edwards, A. C. |
| Appeared in: |
Australian journal of earth sciences |
| Paging: | Volume 25 (1978) nr. 7-8 pages 459-465 |
| Year: |
1978-12 |
| Contents: |
The Wonaminta Block is bounded on its eastern and western margins by Lower Cambrian or upper Vendian intrusive and extrusive igneous rocks. The extrusive rocks include pillow lavas. Low-grade metamorphism has not influenced the distribution of P2O3, Zr, Y, and Nb, but remobilization of Ti has occurred in rocks containing Ti within the oxide phases rather than in the silicate phases. Immobile trace-element discrimination techniques indicate that the basalts on the western margin of the Wonaminta Block are alkaline whereas those on the eastern margin are tholeiitic. The possibility that these rocks represent petrological variants across an arc system is discussed. |
| Publisher: |
Taylor & Francis |
| Source file: |
Elektronische Wetenschappelijke Tijdschriften |
Details for article 11 of 13 found articles
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