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The geology of Peru includes ancient Proterozoic rocks, Paleozoic and Mesozoic volcanic and sedimentary rocks, and numerous basins and the Andes Mountains formed in the Cenozoic.
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The Edmundian orogeny is a preserved low-grade reworking of sedimentary to metasedimentary rocks in the Gascoyne Complex of Western Australia from 1.68 billion to 1.46 billion years ago.
The Sleaford orogeny was an event in the assembly of the Gawler Craton, which now underlies the Eyre Peninsula in South Australia. Between 2.46 and 2.41 billion years ago in the Proterozoic, the Sleaford and Mulgathing complexes emplaced among the older 3.15 billion year old Archean Cooyerdoo Granite 2.82 billion year old Coolanie Gneiss with sedimentary, felsic and ultramafic igneous rocks. The overlapping Sleaford orogeny caused deformation and greenschist and granulite-grade metamorphism on the sequence of metamorphic facies.
The Capricorn orogeny was an orogenic event in what is now Western Australia, following the collision of the Pilbara Craton and the Glenburgh Terrane with the Yilgarn Craton during the Glenburgh orogeny. Spanning one billion years, the Capricorn orogeny is marked by widespread deformation and intracratonal reworking.
The geology of the Kimberley, a region of Western Australia, is a rock record of the early Proterozoic eon that includes tectonic plate collision, mountain-building (orogeny) and the joining (suturing) of the Kimberley and Northern Australia cratons, followed by sedimentary basin formation.
References
- ↑ S. Sheppard and co-authors (2010). EXPLANATORY NOTES FOR THE GASCOYNE PROVINCE. Government of Western Australia. pp. 13–14.
- ↑ Johnson, S.P. and co-authors (2011). "The role of the 1280–1250 Ma Mutherbukin Tectonic Event in shaping the crustal architecture and mineralization history of the Capricorn Orogen". Geological Society of Western Australia. p. 1.
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