Geologic Mapping C

[Things2do]

Restart: What is the concept of Strike And Dip?I got the question off of the Wiki...

Click to Show Answer

Strike and dip relate to slopes. The strike traces a line of equal elevation, and the dip traces the line of fastest descent. The strike and dip are perpendicular to each other.

Sounds right.

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What is isostasy?

[OrigamiPlanet]

What is isostasy?

Answer (Not 100% sure though) (Click to Show Hidden Text)

The equilibrium between the parts of Earth's crust on the mantle.

[UTF-8 U+6211 U+662F]

What is isostasy?

Answer (Not 100% sure though) (Click to Show Hidden Text)

The equilibrium between the parts of Earth's crust on the mantle.

Good enough haha, your turn!

[OrigamiPlanet]

1. What is the difference between a normal and reverse fault?
2. What forces cause each type of fault listed above?
3. What is the difference between a reverse and thrust fault?

[UTF-8 U+6211 U+662F]

1. What is the difference between a normal and reverse fault?
2. What forces cause each type of fault listed above?
3. What is the difference between a reverse and thrust fault?

Click to Show Answer

1. Normal - Footwall up, Reverse - Footwall down

2. Normal - Tensional, Reverse - Compressional

3. Reverse - Dip over 45 degrees, Thrust - Dip less than 45 degrees

[OrigamiPlanet]

1. What is the difference between a normal and reverse fault?
2. What forces cause each type of fault listed above?
3. What is the difference between a reverse and thrust fault?

Click to Show Answer

1. Normal - Footwall up, Reverse - Footwall down

2. Normal - Tensional, Reverse - Compressional

3. Reverse - Dip over 45 degrees, Thrust - Dip less than 45 degrees

Perfect! Your turn!

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Measuring a fold, you find an apparent dip of 5 degrees, but you later find that the axis of your measured dip is 32 degrees from the axis of the true dip. What is the true dip of the fold?

[hippo9]

fine

Answer (Click to Show Hidden Text)

5.9 degrees

[UTF-8 U+6211 U+662F]

fine

Answer (Click to Show Hidden Text)

5.9 degrees

Your turn.