Low-grade metamorphics of West Irian occur to the east of Geelvink Bay associated with two narrow belts of basic and ultrabasic igneous rocks which represent ophiolitic suites of an eugeosynclinical development beginning in Early Mesozoic time. In both of these belts there are indications of regional metamorphism under high pressure and low temperature conditions. Within the miogeosynclinal, Australian-sided part of the Papuan Geosyncline, on the other hand, metamorphic rocks seem to be associated with intrusives of medium to acidic composition.
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| Scripta Geologica | |
| Released under the CC-BY 4.0 ("Attribution") License | |
| Organisation | Naturalis journals & series |
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van der Wegen, G. (1971). Metamorphic Rocks in West Irian. Scripta Geologica, 1, 1–13. |
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