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The mass extinction event at the end of the Cretaceous Period marks the beginning of the Cenozoic Era. There are multiple hypotheses as to what caused or contributed to this extinction; current thought is that the Chicxulub meteorite event, combined with the already occurring volcanic trap eruptions in present day India provided the one-two punch that lead to the extinction. Regardless, the iridium rich KT boundary at the end of the Cretaceous marks the end of the reign of the dinosaur and the emergence of a great diversity in other species.
What else can I help you with?
Which geologic event occurred first?
The formation of the Earth is the earliest geologic event.
What event is used to separate the geologic eras?
The event used to separate geologic eras is a significant change in Earth's environment or life forms, known as a mass extinction event.
This is a geologic event that occurs when tectonic plates are displaced violently?
An earthquake is a geologic event that occurs when tectonic plates are displaced violently. The release of energy along faults in the Earth's crust causes shaking of the ground surface.
Is an earthquake weather related geologic or caused by humans?
An earthquake is a geologic event caused by the movement of tectonic plates beneath the Earth's surface. It is not weather-related or caused by humans. Earthquakes occur due to the release of energy accumulated as stress along fault lines in the Earth's crust.
What other geologic event could take place?
Another geologic event that could take place is a volcanic eruption, where molten rock, ash, and gases are expelled from a volcano onto the Earth's surface. This event can lead to the formation of new landforms and potentially pose risks to nearby communities due to lava flows, ash fall, and volcanic gases.
Which geologic event occurred first?
The formation of the Earth is the earliest geologic event.
What event is used to separate the geologic eras?
The event used to separate geologic eras is a significant change in Earth's environment or life forms, known as a mass extinction event.
This is a geologic event that occurs when tectonic plates are displaced violently?
An earthquake is a geologic event that occurs when tectonic plates are displaced violently. The release of energy along faults in the Earth's crust causes shaking of the ground surface.
What event marks the beginning of earths's current era?
the mass extiction
Is an earthquake weather related geologic or caused by humans?
An earthquake is a geologic event caused by the movement of tectonic plates beneath the Earth's surface. It is not weather-related or caused by humans. Earthquakes occur due to the release of energy accumulated as stress along fault lines in the Earth's crust.
What age of geologic time ended with the great extinction?
Well, there have been several "great extinctions" in earth's history, but the most recent one was the Cretaceous-Tertiary event, ending the Cretaceous. That was c. 65 million years ago.
Are thunderstorms geologic?
No. A thunderstorm is a weather event.
Which event occurred earliest in geologic history?
mars
What other geologic event could take place?
Another geologic event that could take place is a volcanic eruption, where molten rock, ash, and gases are expelled from a volcano onto the Earth's surface. This event can lead to the formation of new landforms and potentially pose risks to nearby communities due to lava flows, ash fall, and volcanic gases.
The absolute age of a geologic event in the rock record is?
the number of years that have elapsed between the event and the present day
What geologic event causes folding and faulting of layers?
Tectonic plate movement is the main geologic event that causes folding and faulting of layers in the Earth's crust. When plates collide or slide past each other, immense pressure and stress are exerted on the rocks, leading to folding or breaking along faults. These processes shape the Earth's surface and contribute to the formation of mountain ranges and other landforms.
What event marks the start of Gregorian calendar?
The calendar is intended to mark the number of years since the death of King Herod the Great. The Roman abbot Dionysus Exiguus devised the new Christian calendar in 533. He knew that it was impossible to say when Jesus was born, but he knew, or thought he knew, when Herod died. So, he chose to begin his Christian calendar on the year of Herod's death, and he based this on the reign of the Roman emperor Augustus. Unaware that Augustus only adopted that name four years after his reign began, going by his birth name of Octavius until then, Exiguus commenced his calendar just 4 years too late.
