Table of Contents
- 1 What type of maps are geologic maps created on top of?
- 2 Which type of map or diagram would best indicate absolute elevation of the land surface?
- 3 What information on a topographic map would be helpful if you were making a geologic cross section?
- 4 What information is shown on geologic maps?
- 5 How are folds, faults and rock deformation measured?
- 6 How are faults and tectonic forces related to each other?
What type of maps are geologic maps created on top of?
base map
Geologic information is drawn on top of a base map. The base map orients the user in space by showing the location of rivers, lakes, roads, hills, and valleys.
Which type of map or diagram would best indicate absolute elevation of the land surface?
Which type of map or diagram would best indicate elevation of the land surface? Topographic map.
How do you read a topographic map in geology?
Several principles are important for reading a topographic map:
- Contour lines show the 3-dimensional shape of the land (Figure below).
- Concentric circles indicate a hill.
- Hatched concentric circles indicate a depression, as seen in the Figure below.
- V-shaped expanses of contour lines indicate stream valleys.
What information on a topographic map would be helpful if you were making a geologic cross section?
elevation. 1.3 A topographic profile (also known as cross-section) illustrates the topography that is intersected by a vertical plane. The profiles are useful because they are cross-sections which clearly show the changes in the shape of the land along the line of the profile.
What information is shown on geologic maps?
Geologic maps represent the distribution of different types of rock and surficial deposits, as well as locations of geologic structures such as faults and folds. Geologic maps are the primary source of information for various aspects of land-use planning, including the siting of buildings and transportation systems.
How are folds and faults related to each other?
Folds constitute the twists and bends in rocks. Faults are planes of detachment resulting when rocks on either side of the displacement slip past one another. 1.
How are folds, faults and rock deformation measured?
1. Figure 10.4: The orientations of rock layers, folds, fractures and faults can all be measured in three dimensional space using strike and dip. 2. The strike of a surface is the direction of a line formed by the intersection of a rock layer with a horizonal surface.
Faults are planes of detachment resulting when rocks on either side of the displacement slip past one another. How Rocks Become Deformed Three Types of Tectonic Forces
What causes the development of folds in rock?
Depending on the material properties the result can either be elastic deformation which can ultimately lead to the breaking of the rock material (faults) or ductile deformation which can lead to the development of folds.