Question

Based on the drainage pattern type, does the bedrock underlying this area consist of rocks uniformly resistant to erosion or rocks alternating between resistant and non-resistant layers? a. uniformly resistant bedrock b. alternately resistant and non-resistant bedrock

Name: Problem 2, Chapter 5: Laboratory Manual for Introductory Geology
Uploaded: 2021-04-30T01:31:24-08:00
Duration: 59 s
Channel: Joanna Quigley
Description: Based on the drainage pattern type, does the bedrock underlying this area consist of rocks uniformly resistant to erosion or rocks alternating between resistant and non-resistant layers? a. uniformly resistant bedrock b. alternately resistant and non-resistant bedrock

   Based on the drainage pattern type, does the bedrock underlying this area consist of rocks uniformly resistant to erosion or rocks alternating between resistant and non-resistant layers?
a. uniformly resistant bedrock
b. alternately resistant and non-resistant bedrock

Laboratory Manual for Introductory Geology

Bradley Deline,… 2016 Edition

Chapter 5, Problem 2

Instant Answer

Solved by Expert Joanna Quigley

04/30/2021

Step 1

Since the question is asking about the drainage pattern type, we need to know the specific drainage pattern in the area to determine the bedrock composition. Show more…

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Based on the drainage pattern type, does the bedrock underlying this area consist of rocks uniformly resistant to erosion or rocks alternating between resistant and non-resistant layers? a. uniformly resistant bedrock b. alternately resistant and non-resistant bedrock

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Key Concepts

Drainage Patterns

Drainage patterns refer to the geometry or layout of a stream system as it develops over the landscape, which largely reflects the underlying rock structure and the process of erosion. The arrangement of streams can be indicative of uniform or varied resistance in the underlying geology.

Uniform Rock Resistance

Uniform rock resistance describes a geological setting where the bedrock displays consistent resistance to weathering and erosion. In such cases, the drainage network tends to have a regular, often dendritic pattern because the erosion process is similar across the entire region.

Differential Erosion

Differential erosion is the process by which varying resistance among rock layers leads to uneven erosion rates. This occurs when rocks alternate between more resistant and less resistant layers, causing the water flow to follow paths of least resistance and form irregular drainage patterns.

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