Question

technology and mapmaking
key concept what can you learn from geologic maps about the rocks near earths surface?
directions: answer each question in the space provided. use p. 23 - 27 in your textbook to help you.
map feature question answer
what three features are part of surface geology? 1.
what is a geologic formation? 2.
what do the different colors on geologic maps indicate? 3.
what is a geologic cross section? 4.
how is information gathered to create a geologic cross section? 5.
what are three ways in which gps is currently used? 6.
what is remote sensing? 7.
remote sensing has many applications. what are four subjects it can provide detailed information for? 8.

Explanation:

1. Surface geology features include rock types, soil types, and land - forms.
2. A geologic formation is a body of rock with identifiable characteristics that distinguish it from adjacent rocks.
3. Different colors on geologic maps indicate different rock types or ages.
4. A geologic cross - section is a diagrammatic representation of the subsurface geology along a line, showing the sequence and orientation of rock layers.
5. Information for a geologic cross - section is gathered through drilling, outcrop observations, and geophysical surveys.
6. GPS is used for navigation, surveying, and tracking the movement of tectonic plates.
7. Remote sensing is the acquisition of information about an object or area without making physical contact, often using satellite or aircraft sensors.
8. Remote sensing can provide detailed information for subjects like forestry, agriculture, geology, and hydrology.

Answer:

1. Rock types, soil types, land - forms
2. A body of rock with identifiable characteristics that distinguish it from adjacent rocks
3. Different rock types or ages
4. A diagrammatic representation of the subsurface geology along a line, showing the sequence and orientation of rock layers
5. Through drilling, outcrop observations, and geophysical surveys
6. Navigation, surveying, tracking tectonic plate movement
7. The acquisition of information about an object or area without making physical contact, often using satellite or aircraft sensors
8. Forestry, agriculture, geology, hydrology