Secondary magnetite in ancient zircon precludes analysis of a Hadean geodynamo
Zircon crystals from the Jack Hills, Western Australia, are one of the few surviving mineralogical records of Earth’s first 500 million years and have been proposed to contain a paleomagnetic record of the Hadean geodynamo. A prerequisite for the preservation of Hadean magnetization is the presence...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Proceedings of the National Academy of Sciences
2020
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| Online Access: | https://hdl.handle.net/1721.1/124534 |