Limestone reefs and salt deposits are important in the reconstruction of the Earth's history because they
A) can be used to infer the ancient climate of the Earth; they are deposited in environments that are restricted to warm climates.
B) automatically provide age information; all such deposits occurred between 200 and
400 million years ago.
C) are deposited in warm climates today,but there is good reason to think that they were deposited in cold climates millions of years ago.
D) pinpoint the locations of old subduction zones.

Question

Quizplus · Accepted Answer

Limestone reefs and salt deposits are often found in warm climate environments today, however, they can also provide information about ancient climates as they are typically deposited in environments restricted to warm climates. Therefore, the presence of these deposits can be used to infer the ancient climate of the Earth.

Limestone Reefs and Salt Deposits Are Important in the Reconstruction