Pervasive remagnetization of detrital zircon host rocks in the Jack Hills, Western Australia and implications for records of the early geodynamo
نویسندگان
چکیده
Article history: Received 11 May 2015 Received in revised form 29 July 2015 Accepted 30 July 2015 Available online xxxx Editor: B. Buffett
منابع مشابه
Potentially biogenic carbon preserved in a 4.1 billion-year-old zircon.
Evidence of life on Earth is manifestly preserved in the rock record. However, the microfossil record only extends to ∼ 3.5 billion years (Ga), the chemofossil record arguably to ∼ 3.8 Ga, and the rock record to 4.0 Ga. Detrital zircons from Jack Hills, Western Australia range in age up to nearly 4.4 Ga. From a population of over 10,000 Jack Hills zircons, we identified one >3.8-Ga zircon that ...
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