Palaeomagnetism of the Gawler Range Volcanics and implications for the genesis of the middleback hematite orebodies
| Autor: | F. H. Chamalaun, C. E. Dempsey |
|---|---|
| Rok vydání: | 1978 |
| Předmět: |
geography
Paleomagnetism geography.geographical_feature_category Igneous activity Range (biology) Hypogene Geochemistry Hematite Volcanic rock Craton Precambrian visual_art Earth and Planetary Sciences (miscellaneous) visual_art.visual_art_medium General Earth and Planetary Sciences Geology General Environmental Science |
| Zdroj: | Journal of the Geological Society of Australia. 25:255-265 |
| ISSN: | 0016-7614 |
| DOI: | 10.1080/00167617808729034 |
| Popis: | A new Precambrian palaeomagnetic pole has been obtained for the Gawler Craton, South Australia. The pole is based on results obtained from the accurately dated Gawler Range Volcanics (1525 ± 15 m.y.) and is situated 230°E 60.4°N with a 95 = 6.2°. The pole is in excellent agreement with poles previously determined from the negatively magnetized ore of Iron Monarch and the negatively magnetized dykes that intrude the Gawler Craton. The results suggest that the iron ore‐forming process is closely related to igneous activity and supports the hypothesis of a hypogene origin for the ore. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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