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The K-T (Cretaceous and Tertiary) boundary event thought to have been caused by the impact of a large meteorite forming the Chicxulub crater as well as very large scale volcanic activity (in this case the large igneous province known as the Deccan Traps) is a very good example and is thought to have been responsible for the extinction of the dinosaurs.
Wiki User
∙ 14y ago
Wiki User
∙ 12y agoThe K-T extinction; commonly known as the extinction that wiped out the dinosaurs. It was thought to be brought on by an asteroid impact.
The Permian Extinction; which was thought to be brought on by large, yet sudden, amounts of global volcanic activity.
The Ordovician extinction; This extinction is study very little, and there is no official cause.
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Mass extinctions are usually followed by what?
When there are mass extinctions they are usually followed by adaptive radiation and very rapid diversification. The last mass extinctions happened 65 million years ago.
Why mass extinctions occur and why they often mark divisions of geologic times?
Mass extinctions occur when extreme temperatures happen.https://science.howstuffworks.com/life/evolution/extinction3.htm
What are two catastrophic events that can cause mass extinctions?
An asteroid from space, and Gradualevents
When geologists refer to the big five' what are the referring to?
When geologist refer to the Big Five they are referring to the five mass extinctions on Earth. Some of these extinctions are the Paleozoic and Mesozoic eras.
What are two things that can cause mass extinctions?
ice age,Noahs flood in bible
What was the outcomes of each of the mass extinctions?
The outcomes of each of the mass extinctions is that animal and/or bacteria die.
Mass extinctions are usually followed by what?
When there are mass extinctions they are usually followed by adaptive radiation and very rapid diversification. The last mass extinctions happened 65 million years ago.
Do scientists believe that extinctions are uncommon?
No, they are fundamental to the process of evolution. Mass extinctions are less common.
What has happened during mass extinctions?
Bad things
What affects have mass extinctions had on the history of life?
biospere
What might have caused mass extinctions?
Ice age
Why mass extinctions occur and why they often mark divisions of geologic times?
Mass extinctions occur when extreme temperatures happen.https://science.howstuffworks.com/life/evolution/extinction3.htm
Why do you think most extinction's occur as background extinctions?
Most extinctions occur as background extinctions because they are longer time periods unlike the shorter mass extinctions which there were only two in the Paleozoic era, the Ordovician mass extinction, and the Permian/Triassic extinction in which 95% of all marine animals became extinct
Mass extinctions create conditions that promote?
Adaptive Radiation
What has changed most of the mass extinctions on earth?
climate change
What have Mass extinctions determined?
order in which fossils are found in the fossil record.
The fossil record indicates that Earth has experienced?
5 mass extinctions
