Plutonium and microplastics were found in core samples of the Crawford Lake sediments. Read more at straitstimes.com.
Sediment deposited at Crawford Lake, a small but deep body of water in Canada’s Ontario province, provides unmistakable evidence that Earth entered a new human-driven geological chapter - the Anthropocene epoch - some seven decades ago, a team of scientists said on Tuesday.
Presence of plutonium and other evidence - such as microplastics - was found in core samples of the Crawford Lake sediments. The Anthropocene epoch has not yet been formally recognised by a scientific body called the International Commission on Stratigraphy. The Anthropocene, if it gains formal recognition, would follow the Holocene epoch, which began 11,700 years at the conclusion of the last Ice Age.
The sediment at Crawford Lake, the scientists said, showed a “golden spike” illustrating a sudden - in geological terms - and irreversible shift in Earth’s conditions. Such golden spikes - formally ending one geological chapter and ushering in another - would be observable in rock, glaciers or marine sediments for thousands of years to come.
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