Only asteroids that hit a certain mineral trigger a mass ext

A comparison between geological records of asteroid impacts and mass extinctions suggests that only space rocks that strike an area rich in a certain mineral have a cataclysmic effect on life, no matter their size

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Kerry Hebden , , Asteroid , Dinosaurs , Meteorite , Extinction , கெர்ரி ஹெப்டன் , சிறுகோள் ,