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5.4.c Extinction

Across
A group of marine and terrestrial animals that are synonymous with the mesozoic
The demise of dinosaurs was good news for this group
The last period of the Mesozoic
The Triassic, Jurassic and Cretaceous
A principle that states changes in the earth's crust have resulted from the action of continuous and uniform processes.
This happens to minerals after high impact stress
Minor planets that may have occasionally hit Earth
The largest mass extinction
A specific outpouring of large volumes of basalt
The remains of past life or remains of its activity
A natural pit, or sinkhole
Down
A group of marine organisms that became extinct at the end of the Mesozoic
The termination of a kind of organism or of a group
A dating technique used to give an exact numerical age to geological events
A series of waves caused by earthquakes or undersea volcanic eruptions
A biochemical reaction that transformed the Earth
Geologic principal: the oldest layer is at the bottom
The fine grained mafic rock
The location of the Deccan traps is in this country
Atoms with different atomic masses
A dating technique used to sequence events
A rare Earth element common in meteorites