Question

What is a boundary between geologic units called

Answer 1

The boundaries between geologic units called: form the lines on geologic maps. A geologic map also shows the topography of the land surface with contour lines, so it is both a geologic and topography. Is that wym?

Answer 2

The boundary between geologic units is called a contact.

Step-by-step explanation:

• The geologic units are made up of different kinds of rocks of different ages. These geologic units are separated from each other on the basis of their formation and age.

• Every geologic unit, depending upon its formation and age is assigned a color for the purpose of representation on the map.

• These geologic units share boundaries with each other which for the convenience of map reading are called contacts.