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What do the periods the geologic time scale represent?
Usually, they represent periods between extinction events, where a particular type of lifeform was dominant.
The last mass extinction of dinosaurs on Earth occurred between which two geologic periods?
asteroid attack
How are geological time periods divided and classified in the field of geology?
Geological time periods are divided and classified based on the rock layers and fossils found in them. Geologists use specific criteria to determine the boundaries between different periods, such as changes in rock types, fossil assemblages, and major geological events. These periods are then grouped into larger units called eras and eons, providing a framework for understanding Earth's history.
Geological eras can be divided into .?
Geological eras can be divided into periods, epochs and ages.
What do periods on the geologic time scale represent?
Periods on the geologic time scale represent units of time that divide eras into smaller segments. They typically last tens of millions of years and are defined by distinctive rock layers and characteristics of the Earth's environment. Each period is marked by significant shifts in global climate, the evolution of life forms, and geological events.
What is the KT asteroid?
It is the asteroid that hit the Earth 65 million years ago and contributed to the extinction of the dinosaurs. It impact crater is located in Chicxulub which is in the Yucatan peninsula, it is buried deep underground. KT refers to the geological transition between the Cretaceous and the Tertiary periods. (Cretaceous in German starts with a K)
How were the periods divided in the geological time scale?
The longest periods of the geological time scale are eons. Each eon is divided into eras and each era is made up of periods, which are further divided into epochs. Each division ended when a significant geological event occurred, such as a major ice age ending or a meteor impact resulting in a mass extinction of animal life, etc.
What is the significance of the boundary between the cretaceous tertiary time periods?
The boundary marks the impact of a massive meteorite that caused mass extinction on Earth.
What are divisions on the geological time scale called?
Periods
How were the geological time periods named?
HI there :))))0
What do periods in the geological time scale represent?
the hood
When did the Cretaceous Tertiary extinction occur?
About 65.5 million years ago. The Cretaceous and Tertiary are geological time periods either side of this event. The event is significant because there was a large mass extinction event at this time including the extinction of all non avian dinosaurs. Most experts agree that the cause of the extinction was a asteroid impact.
