0
How did geologists determine the divisions of the geologic time scale?
Wiki User
∙ 13y ago
Mainly abrupt changes in mineral layers or the fossils in them.
Wiki User
∙ 13y ago
Add your answer:
Earn +20 pts
What are the basic divisions of the Geologic Time Scale from larger to small?
eras and periods
How do humans relate to geologic time scale?
in the scope of geologic time, how significant is the presence of humans?
What is the main evidence that supports the geologic time scale?
Measured rates of erosion.
The Geologic Time Scale placed Earth's rocks in order by what?
In the order of time.
What scale is used to determine an earthquakes density?
The Richter Scale is used to determine the earthquake density. The scale is measured from low as 1 to high as 10.
What kind of scientists worked with geologists to develop the geologic time scale?
biologists
What information does the geologic time scale provided and what are the major divisions of time?
The information the geologic scale provides is animals and fossils over time and periods. Major divisions of time is called eras.
Geologists have divided earths history in the manaeable units that are represented by the?
Geologic time scale
What information does the geologic time scale provide and what are the major divisions of geological time?
The information the geologic scale provides is animals and fossils over time and periods. Major divisions of time is called eras.
What are the largest divisions of time on the geological time scale?
Eons are the largest divisions of geologic time.
What methods did geologists use when they first developed the time scale?
The methods the geologists used when they first developed the geologic time scale. Were studying rock layers and index fossils worldwide. By Patrick
How did geologists determine the division of the geologic time scale?
fossils contained within the rock. got answers from Earth Science book while doing my HW
What divides the history Earth into time units that help geologists analyze the rock record?
Geologic Time scale
What are the basic divisions of the Geologic Time Scale from larger to small?
eras and periods
After precambrian time what are the two basic divisions of the geologic time scale?
Era & period Tracy Feng
What methods did geologist used when they first developed the geologic time scale?
The methods the geologists used when they first developed the geologic time scale. Were studying rock layers and index fossils worldwide. By Patrick
What dating were used to determine the subdivisions of geologic time?
Rocks contain what we call "Clocks" these can be minerals which are resistant to weathering such as Zircon. They are used to estimate absolute ages of Geological structures.Using these clocks combined with the Geological events i.e drastic Changes to the earths environment leading especially to extinction of specific animal species eg.Dinasours and the type of Organisms that existed at that time,the geological time scale is born
