Mass extinctions caused by large bolide impacts
Journal Article
·
· Phys. Today; (United States)
Evidence indicates that the collision of Earth and a large piece of Solar System derbris such as a meteoroid, asteroid or comet caused the great extinctions of 65 million years ago, leading to the transition from the age of the dinosaurs to the age of the mammals.
- Research Organization:
- Lawrence Berkeley Laboratory
- OSTI ID:
- 6496223
- Journal Information:
- Phys. Today; (United States), Journal Name: Phys. Today; (United States) Vol. 40:7; ISSN PHTOA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
58 GEOSCIENCES
580400* -- Geochemistry-- (-1989)
ANIMALS
BIOLOGICAL EXTINCTION
BOUNDARY LAYERS
CENOZOIC ERA
CHEMISTRY
CLAYS
COMETS
CRETACEOUS PERIOD
EARTH PLANET
ELEMENTS
GEOCHEMISTRY
GEOLOGIC AGES
GEOLOGIC HISTORY
IRIDIUM
LAYERS
MESOZOIC ERA
METALS
PALEONTOLOGY
PLANETS
PLATINUM METALS
REPTILES
TERTIARY PERIOD
TRANSITION ELEMENTS
VERTEBRATES
580400* -- Geochemistry-- (-1989)
ANIMALS
BIOLOGICAL EXTINCTION
BOUNDARY LAYERS
CENOZOIC ERA
CHEMISTRY
CLAYS
COMETS
CRETACEOUS PERIOD
EARTH PLANET
ELEMENTS
GEOCHEMISTRY
GEOLOGIC AGES
GEOLOGIC HISTORY
IRIDIUM
LAYERS
MESOZOIC ERA
METALS
PALEONTOLOGY
PLANETS
PLATINUM METALS
REPTILES
TERTIARY PERIOD
TRANSITION ELEMENTS
VERTEBRATES