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Ancient meteorite was ‘giant fertiliser bomb’ for life on earth

Impact Event: A massive meteorite, 37-58 km in diameter, struck Earth 3.26 billion years ago, estimated to be 50-200 times the mass of the asteroid that caused the dinosaur extinction.

Impact Location: The impact likely occurred in the ocean, generating global tsunamis and vaporizing sediments, resulting in a dust cloud.

Destruction: It caused extreme heat, atmospheric changes, and destruction of sunlight-dependent microbes in shallow waters.

Recovery of Life: Despite initial destruction, conditions normalized within years to decades, allowing life to not only recover but also to thrive due to increased nutrient availability.

Nutrient Delivery: The meteorite, a carbonaceous chondrite, enriched the environment with phosphorus and iron, essential nutrients for early microbial life.

Ancient meteorite was 'giant fertiliser bomb' for life on earth

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