Pilbara Craton
Australia map. Pilbara Region is coloured in red.
The Pilbara Craton is an old and stable part of the continental lithosphere located in Pilbara, Western Australia.
The Pilbara Craton is one of only two pristine Archaean 3.6-2.7 Ga (billion years ago) crusts identified on the Earth, with the Kaapvaal Craton in South Africa. Both locations may have once been part of the Vaalbara Supercontinent or the continent of Ur.
In May 2017, evidence of the earliest known life on land may have been found in 3.48-billion-year-old geyserite and other related mineral deposits (often found around hot springs and geysers) uncovered in the Pilbara Craton.[1][2]
See also
References
- ↑ Staff (9 May 2017). "Oldest evidence of life on land found in 3.48-billion-year-old Australian rocks". Phys.org. Retrieved 13 May 2017.
- ↑ Djokic, Tara; Van Kranendonk, Martin J.; Campbell, Kathleen A.; Walter, Malcolm R.; Ward, Colin R. (9 May 2017). "Earliest signs of life on land preserved in ca. 3.5 Ga hot spring deposits". Nature Communications. doi:10.1038/ncomms15263. Retrieved 13 May 2017.
Bibliography
- Kato, Y.; Nakamura, K. (2003). "Origin and global tectonic significance of Early Archean cherts from the Marble Bar greenstone belt, Pilbara Craton, Western Australia". Precambrian Research. 125 (3–4): 191–243. doi:10.1016/S0301-9268(03)00043-3.
- Oliver, N. H. S.; Cawood, P.A (2001). "Early tectonic dewatering and brecciation on the overturned sequence at Marble Bar, Pilbara Craton, Western Australia: dome-related or not?". Precambrian Research. 105 (1): 1–15. doi:10.1016/S0301-9268(00)00098-X.
- Terabayashi, M.; Masada, Y.; Ozawa, H. (2003). "Archean ocean-floor metamorphism in the North Pole area, Pilbara Craton, Western Australia". Precambrian Research. 127 (1–3): 167–180. doi:10.1016/S0301-9268(03)00186-4.
- Zegers, E.; de Wit, M. J.; Dann, J.; White, S. H. (1998). "Vaalbara, Earth's oldest assembled continent? A combined structural, geochronological, and palaeomagnetic test". Terra Nova. 10 (5): 250–259. doi:10.1046/j.1365-3121.1998.00199.x.
External links
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Wikimedia Commons has media related to Pilbara. |
- Deformation and gold mineralisation of the Archaean Pilbara Craton, Western Australia
- Stratigraphic revision of the Warrawoona and Gorge Creek Groups in the Kelly greenstone belt, Pilbara Craton,Western Australia
- Tectonic/Volcanic Landforms
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