An impact melt origin for Earth’s oldest known evolved rocks
Earth’s oldest evolved (felsic) rocks, the 4.02-billion-year-old Idiwhaa gneisses of the Acasta Gneiss Complex, northwest Canada, have compositions that are distinct from the felsic rocks that typify Earth’s ancient continental nuclei, implying that they formed through a different process. Using pha...
| Main Authors: | , , , , , , |
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| Format: | Journal Article |
| Published: |
Nature Publishing Group, Macmillan Publishers Ltd
2018
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| Online Access: | http://purl.org/au-research/grants/arc/DP170102529 http://hdl.handle.net/20.500.11937/71426 |