Lab 04/module 14: weathering and mass wasting


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Lab 05/MODULE 14: WEATHERING AND MASS WASTING

Note: Please appeal to the GETTING STARTEDmodule to imbibe how to maneuver through, and how to vindication the lab topics, in the Google Earth () rudiment.

KEY TERMS

You should apprehend and comprehend the aftercited terms:

 

Avalanche

Frost wedging

Rockslide

Carbonation

Hydrolysis

Root wedging

Chemical Weathering

Landslide

Salt crystal growth

Debris flow

Mass waning

Soil creep

Earthflow

Mechanical (Physical)Weathering

Solifluction

Exfoliation

Mudflow

Slump

Frost heaving

Oxidation

 

 

LAB MODULE LEARNING OBJECTIVES

After successfully completing this module, you should be serviceserviceable to accomplish the aftercited tasks:

·         Test erosional processes and features constituted by weathering and heap waning

·         Test depositional processes and features constituted by weathering and heap waning

·         Prove the processes that constitute heap waning placeforms

·         Distinguish contrariant weathering and heap waning fashions

·         Calculate grow

·         Interpret the topographic mark of a placescape

 

INTRODUCTION

This module proves weathering and heap waning. Topics includephysical weathering, chemical weathering, and heap waning. Occasion these subject-matters may pretence to be unequal, you get imbibe how they are inherently connected.The modules rouse delay impure space subject-matters, or vignettes, which are grovelling in the obligatory Google Earth improve. These vignettes conduct-in basic concepts of the weathering and heap waning. Some of the vignettes accept animations, videos, or soon articles that get furnish another perspective or visual sense for the subject-matter at operative.After balbutiation the vignette and associated links, vindication the aftercited topics. Please silence that some links ability catch a occasion to download installed on your Internet press.

 

Expandthe INTRODUCTION folder and then check Subject-matter 1: Introduction.

Read Topic 1:Introduction

Question 1: According to the website, which of the aftercited factors bias the press of placeslides? (Check all that dedicate).

A.   Grow of ground

B.   Insinuate contented

C.   Volume of debris

D.   Era past developed placeslide

Read Topic 2: Weathering

Question 2: Other than the cast representative, what are the two most main factors in chemical weathering?

A.   Insinuate and grow of place

B.   Debris fashion and insinuate

C.   Grow of place and weather

D.   Insinuate and weather

Read Topic 3: Heap Wasting

Question 3: What does the influence of lichen on boulders mention scientists?

A.   It mentions us the constructor representative of the debris

B.   It mentions us the referring-to era of a heap waning circumstance

C.   It mentions us what the grow of the place used to be

D.   It mentions us what the humidity contenteded was at the era of the heap waning circumstance.

Read Topic 4: Human Interaction

Question 4: What are the characteristics of areas generally considered to be certain from placeslides? (Check all that dedicate)

A.   On tasteless areas loose from grows

B.   On firm, non-jointed bedcast that has not moved in the past

C.   At the grovelling of younger drainage hollows

D.   At the top or parallel the nose of ridges, set end from the tops of grows

 

Collapse and uncheck the INTRODUCTIONfolder.

GLOBAL PERSPECTIVE

Figure 1.The geography of weathering (Arbogast 2nd Ed.).

Double-click and choiceGLOBAL PERSPECTIVE.

Figure 1 is a graph pretenceing the dominant fashion of weathering installed on annual colony and weather. If a colonization has a balance annual weather of 20°C and receives 190cm of colony per-annum, you can conspire these values (as denoted by the triton) to see this colonization’s dominant weathering is sinewy chemical.

For Questions 5 to 8, fashion the colonization counsel furnishd into the Searchtab in Google Earth and pressEnter. When you get at your end, use the chart in Figure 1, in specification delay Google Earth, to vindication each topic. The balance annual weather and colony are furnishd respectively, in the constructorheses.

Question 5:         What is the dominant weathering In Bangkok, Thaiplace (28°C, 145cm)?

A.   Moderate chemical

B.   Sinewy chemical

C.   Moderate chemical delay frost action

D.   Very neglect weathering

Question 6:         What is the dominant weathering in New Delhi, India (25°C, 80cm)

A.   Moderate chemical

B.   Sinewy chemical

C.   Moderate chemical delay frost action

D.   Sinewy physical

 

Question 7:         What is the dominant weathering at 19°10'21.78"N, 96° 7'59.77"W (25°C, 236cm)?

A.   Moderate chemical

B.   Sinewy chemical

C.   Moderate chemical delay frost action

D.   Sinewy physical

Question 8:What is the dominant weathering at 58°18'7.00"N,134°25'11.00"W (5°C, 140cm)?

A.   Moderate chemical

B.   Sinewy chemical

C.   Moderate chemical delay frost action

D.   Sinewy physical

Collapse and uncheck the GLOBAL PERSPECTIVE folder.

 

 

Weathering

Double-click WEATHERING, and then double‑click Mechanical Weathering.

Identify the dominant fashion of unimpassioned weathering at the aftercited colonizations. Use the photo links in Google Earth to aid you test the fashion.

Double-click Feature A and then clickFeature A photo.

Question 9:Identify unimpassioned weathering at Feature A:

A.   Frost wedging

B.   Frost heaving

C.   Salt-crystal growth

D.   Exfoliation

Double-click Feature B and then clickFeature B photo.

Question 10:Identify unimpassioned weathering at Feature B:

A.   Frost wedging

B.   Frost heaving

C.   Salt-crystal growth

D.   Exfoliation

Double-click Feature C and then click Feature C photo.

Question 11:Identify unimpassioned weathering at Feature C:

A.   Frost wedging

B.   Frost heaving

C.   Salt-crystal growth

D.   Exfoliation

Collapse theMechanical Weathering folder.

Double-click Chemical Weathering.

Double-click Feature D and then click Feature D photo.

Question 12:Identify chemical weathering at Feature D:

A.   Hydrolysis

B.   Carbonation

C.   Oxidation

D.   Spheroidal

 

Double-click Feature Eand then clickFeature E photo.

Question 13:Identify chemical weathering at Feature E:

A.   Hydrolysis

B.   Carbonation

C.   Oxidation

D.   Spheroidal

Double-click Feature F and then click Feature F photo.

Question 14:Identify chemical weathering at Feature F:

A.   Hydrolysis

B.   Carbonation

C.   Oxidation

D.   Spheroidal

Collapse theChemical Weathering folder.

MASS WASTING

Expand theMASS WASTING folder.

Double-click and choiceFeature G.

Select the dominant fashion of heap waningat Feature G.

Question 15: Feature G: ________

A.   Slump

B.   Solifluction

C.   Landslide

D.   Rockfall

Question 16:Why did you pluck the vindication you did in Topic 15?

A.   Accordingly the copy pretences representative that has rotated and moved down the grow parallel a retreating roll referring-to to the deportment.

B.   Accordingly the copy pretences where freeze-thaw processes issue in lobes of stain affecting partially downslope.

C.   Accordingly the copy pretences the issue of motion of stain and bedcast down a hilly grow in retort to priggishness,

D.   Accordingly the copy pretences casts that suddenly slid down a mountainside

Double-click and choiceFeature H.

Select the dominant fashion of heap waning at Feature H.

Question 17: Feature H: _______

A.   Slump

B.   Solifluction

C.   Landslide

D.   Rockfall

Question 18: Why did you pluck the vindication you did in Topic 17

A.   Accordingly the copy pretences representative that has rotated and moved down the grow parallel a retreating roll referring-to to the deportment.

B.   Accordingly the copy pretences where freeze-thaw processes issue in lobes of stain affecting partially downslope.

C.   Accordingly the copy pretences the issue of motion of stain and bedcast down a hilly grow in retort to priggishness,

D.   Accordingly the copy pretences casts that suddenly slid down a mountainside

 

Double-click and choiceFeature I and prove the area in September 1998. Use the unromantic copyry slider and walk the eracord to March 2007.

Select the dominant fashion of heap waning at Feature I.

Question 19: Feature I: ______

A.   Slump

B.   Solifluction

C.   Landslide

D.   Rockfall

Question 20: Why did you pluck the vindication you did in Topic 19?

A.   Accordingly the copy pretences representativethat has rotated and moved down the grow parallel a retreating roll referring-to to the deportment.

B.   Accordingly the copy pretences where freeze-thaw processes issue in lobes of stain affecting partially downslope.

C.   Accordingly the copy pretences the issue of motion of stain and bedcast down a hilly grow in retort to priggishness,

D.   Accordingly the copy pretences casts that suddenly slid down a mountainside

 

 Double-click and choice Slope 1. Right click the designation Slope 1, and then choice Show Refinement Profile.

Place your cursor aggravate the refinement mark chart and estimate the grow of the cords. Recall that the equation for grow is RISE/RUN and that the units must be the corresponding when dividing (that is, twain in meters).

Question 21: What is the RISE (Elevation compel) in meters?

A.   738 meters

B.   190 meters

C.   46.7 meters

D.   25.4 meters

Question 22: What is the RUN of the cord (Distance) in meters?

A.   738 meters

B.   190 meters

C.   46.7 meters

D.   25.4 meters

Question 23:Based on the vindications in Questions 21 and 22, what is the middle grow of the cord? 

A.   738 %

B.   190 %

C.   46.7 %

D.   25.4 %

Double-click and choice Feature J. Prove the area in July 1998. Use the unromantic copyry slider and walk the eracord to February 2003.

Select the dominant fashion of heap waning at Feature J.

Question 24: Feature J: ______

A.   Slump

B.   Debris flow

C.   Mudflow

D.   Stain Creep

Question 25: Why did you pluck the vindication you did in Topic 24?

A.   Accordingly the copys pretence representativethat has rotated and moved down the grow parallel a retreating roll referring-to to the deportment.

B.   Accordingly the copys pretence the issues of a rapidly flowing and very-much masterful heap of insinuate, casts, grounds, boulders, and trees.

C.   Accordingly the copys pretence the issues of a well-saturated and greatly fluid heap of fine-textured grounds

D.   Accordingly the copys pretence the issue of a progressive downhill motion of stain,trees, and casts due to the validity of priggishness.

Double-click and choice Feature K.

Select the dominant fashion of heap waning at Feature K.

Question 26: Feature K: ________

A.   Slump

B.   Debris flow

C.   Mudflow

D.   Stain Creep

Question 27: Why did you pluck the vindication you did in Topic 26?

A.   Accordingly the copys pretence representativethat has rotated and moved down the grow parallel a retreating roll referring-to to the deportment.

B.   Accordingly the copys pretence the issues of a rapidly flowing and very-much masterful heap of insinuate, casts, grounds, boulders, and trees.

C.   Accordingly the copys pretence the issues of a well-saturated and greatly fluid heap of fine-textured grounds

D.   Because the copys pretence the issue of a progressive downhill motion of stain, trees, and casts due to the validity of priggishness.

 Double-click and choice Slope 2. Right click the designation Slope 2, and then choice Show Refinement Profile.

Place your cursor aggravate the refinement mark chart and estimate the grow of the cords. Recall that the equation for grow is RISE/RUN andthat the units must be the corresponding when dividing (that is, twain in meters).

Question 28: What is the RISE (Elevation compel) in meters?

A.   92.1 meters

B.   35.6 meters

C.   128 meters

D.   148 meters

Question 29: What is the RUN of the cord (Distance) in meters?

A.   92.1 meters

B.   35.6 meters

C.   128 meters

D.   148 meters

Question 30:Based on the vindications in Questions 28 and 29, what is the middle grow of the cord? 

A.   92.1 meters ÷ 92.1 meters x 100% = 100%

B.   35.6 meters ÷ 92.1 meters x 100% = 38.6%

C.   128 meters ÷ 148 meters x 100% = 86.5%

D.   35.6 meters ÷ 128 meters x 100% = 27.8%

Question 31: Which heap waning circumstance do you look-for to excursion faster (Feature I or K)? Why?

A.   Feature I accordingly it is one of the fastest fashions of heap waning

B.   Feature K accordingly it is one of the fastest fashions of heap waning

C.   Feature I accordingly it is one of the slowest fashions of heap waning

D.   Feature K accordingly it is one of the slowest fashions of heap waning