Isotopic Dating in Sandstone Analysis

What information can be obtained from isotopic dating of a feldspar grain in a sandstone?

a. an accurate numerical age for the sandstone
b. an age that would be older than the sandstone
c. an age that would be younger than the sandstone
d. no information that could be useful

Answer:

a. an accurate numerical age for the sandstone

Isotopic dating is a powerful technique used in geology to determine the age of rocks and minerals. When isotopic dating is performed on a feldspar grain within a sandstone, it can provide valuable information about the geological history of the sandstone.

The accurate numerical age of the sandstone can be obtained through isotopic dating of the feldspar grain. This is because the isotopic composition of the feldspar grain allows scientists to calculate the time at which it formed. By analyzing the isotopic ratios, researchers can determine the age of the sandstone and gain insights into its formation and history.

Isotopic dating of a feldspar grain in a sandstone is a reliable method to obtain precise chronological information about the sandstone's age. This data is crucial for understanding the geological processes that have shaped the sandstone over time.