Question

1. What is a geologic fold and what causes one to form? 2. What types of forces create a set of folds? 3. What is a monocline? Where are the older rocks found? 4. What is an anticline? Where are the older rocks found? 5. What is a syncline? Where are the older rocks found?

Answer 1

1. Fold, in geology, undulation or waves in the stratified rocks of Earth's crust. Stratified rocks were originally formed from sediments that were deposited in flat horizontal sheets, but in a number of places the strata are no longer horizontal but have been warped.

2. FoldsEdit. When rocks experiencing compressive stress deform plastically, the rocks crumple into folds. Folds are just bends in the rock. You can easily make folds by placing your hands on opposite edges of a piece of cloth and pushing the cloth together.

3.a bend in rock strata that are otherwise uniformly dipping or horizontal.

4. a ridge-shaped fold of stratified rock in which the strata slope downward from the crest.

5.In anticlines, as seen on the ground, the oldest rocks are in the center of the fold. In synclines, the youngest rocks are in the center of the fold. This intensely folded limestone from Highland County shows how anticlines and synclines typically occur together. These sharp folds are called "chevron" folds.

Answer 2

Fold, in geology, undulation or waves in the stratified rocks of Earth's crust. Stratified rocks were originally formed from sediments that were deposited in flat horizontal sheets, but in a number of places the strata are no longer horizontal but have been warped. FoldsEdit. When rocks experiencing compressive stress deform plastically, the rocks crumple into folds. Folds are just bends in the rock. You can easily make folds by placing your hands on opposite edges of a piece of cloth and pushing the cloth together. monocline:a bend in rock strata that are otherwise uniformly dipping or horizontal. Bedrock along the northeast coast of Hudson Bay, Canada, has the oldest rock on Earth. Canadian bedrock more than 4 billion years old may be the oldest known section of the Earth's early crust. anticline:a ridge-shaped fold of stratified rock in which the strata slope downward from the crest. syncline:a trough or fold of stratified rock in which the strata slope upward from the axis.

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