Lab 04/module 14: weathering and mass wasting


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Lab 05/MODULE 14: WEATHERING AND MASS WASTING

Note: Please allude to the GETTING STARTEDmodule to attain how to maneuver through, and how to retort the lab interrogations, in the Google Earth () element.

KEY TERMS

You should comprehend and comprehend the subjoined terms:

 

Avalanche

Frost wedging

Rockslide

Carbonation

Hydrolysis

Root wedging

Chemical Weathering

Landslide

Salt crystal growth

Debris flow

Mass declension

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 conducive to end the subjoined tasks:

·         Warrant erosional processes and features engenderd by weathering and bulk declension

·         Warrant depositional processes and features engenderd by weathering and bulk declension

·         Search the processes that engender bulk declension plantforms

·         Distinguish irreferring-to weathering and bulk declension shadows

·         Calculate excel

·         Interpret the topographic mark of a plantscape

 

INTRODUCTION

This module searchs weathering and bulk declension. Topics includephysical weathering, chemical weathering, and bulk declension. Occasion these subject-matters may defense to be unequal, you conciliate attain how they are inherently connected.The modules set-on-foot after a occasion four chink subject-matters, or vignettes, which are build in the appertaining Google Earth perfect. These vignettes begin basic concepts of the weathering and bulk declension. Some of the vignettes possess animations, videos, or incomplete profession that conciliate produce another perspective or visual interpretation for the subject-matter at swing.After balbutiation the vignette and associated links, retort the subjoined interrogations. Please voicelessness that some links might primeeded a occasion to download inveterate on your Internet expedite.

 

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

Read Topic 1:Introduction

Question 1: According to the website, which of the subjoined factors swing the expedite of plantslides? (Check all that apportion).

A.   Excel of ground

B.   Introduce satisfied

C.   Volume of debris

D.   Occasion since terminal plantslide

Read Topic 2: Weathering

Question 2: Other than the shake esthetic, what are the two most dignified factors in chemical weathering?

A.   Introduce and excel of plant

B.   Debris shadow and introduce

C.   Excel of plant and sphere

D.   Introduce and sphere

Read Topic 3: Bulk Wasting

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

A.   It mentions us the agent esthetic of the debris

B.   It mentions us the referring-to occasion of a bulk declension adventure

C.   It mentions us what the excel of the plant used to be

D.   It mentions us what the humidity satisfied was at the occasion of the bulk declension adventure.

Read Topic 4: Human Interaction

Question 4: What are the characteristics of areas generally considered to be sure from plantslides? (Check all that apportion)

A.   On spiritless areas abroad from excels

B.   On exacting, non-jointed bedshake that has not moved in the past

C.   At the cheap of junior drainage hollows

D.   At the top or concurrently the nose of ridges, set tail from the tops of excels

 

Collapse and uncheck the INTRODUCTIONfolder.

GLOBAL PERSPECTIVE

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

Double-click and primeedGLOBAL PERSPECTIVE.

Figure 1 is a graph exhibitioning the dominant shadow of weathering inveterate on annual subsidence and sphere. If a subsidence has a balance annual sphere of 20°C and receives 190cm of subsidence every-year, you can batch these values (as denoted by the notability) to see this subsidence’s dominant weathering is zealous chemical.

For Questions 5 to 8, shadow the subsidence knowledge produced into the Searchtab in Google Earth and pressEnter. When you enter at your object, use the chart in Figure 1, in analysis after a occasion Google Earth, to retort each interrogation. The balance annual sphere and subsidence are produced respectively, in the agentheses.

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

A.   Moderate chemical

B.   Zealous chemical

C.   Moderate chemical after a occasion frost action

D.   Very neglect weathering

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

A.   Moderate chemical

B.   Zealous chemical

C.   Moderate chemical after a occasion frost action

D.   Zealous 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.   Zealous chemical

C.   Moderate chemical after a occasion frost action

D.   Zealous 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.   Zealous chemical

C.   Moderate chemical after a occasion frost action

D.   Zealous physical

Collapse and uncheck the GLOBAL PERSPECTIVE folder.

 

 

Weathering

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

Identify the dominant shadow of habitual weathering at the subjoined subsidences. Use the photo links in Google Earth to succor you warrant the shadow.

Double-click Feature A and then clickFeature A photo.

Question 9:Identify habitual 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 habitual 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 habitual 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 primeedFeature G.

Select the dominant shadow of bulk declensionat Feature G.

Question 15: Feature G: ________

A.   Slump

B.   Solifluction

C.   Landslide

D.   Rockfall

Question 16:Why did you extract the retort you did in Interrogation 15?

A.   Owing the shadow exhibitions esthetic that has rotated and moved down the excel concurrently a excavated roll referring-to to the deportment.

B.   Owing the shadow exhibitions where freeze-thaw processes effect in lobes of befoul melting spiritual downslope.

C.   Owing the shadow exhibitions the effect of change-of-place of befoul and bedshake down a hilly excel in repartee to lugubriousness,

D.   Owing the shadow exhibitions shakes that suddenly slid down a mountainside

Double-click and primeedFeature H.

Select the dominant shadow of bulk declension at Feature H.

Question 17: Feature H: _______

A.   Slump

B.   Solifluction

C.   Landslide

D.   Rockfall

Question 18: Why did you extract the retort you did in Interrogation 17

A.   Owing the shadow exhibitions esthetic that has rotated and moved down the excel concurrently a excavated roll referring-to to the deportment.

B.   Owing the shadow exhibitions where freeze-thaw processes effect in lobes of befoul melting spiritual downslope.

C.   Owing the shadow exhibitions the effect of change-of-place of befoul and bedshake down a hilly excel in repartee to lugubriousness,

D.   Owing the shadow exhibitions shakes that suddenly slid down a mountainside

 

Double-click and primeedFeature I and search the area in September 1998. Use the unromantic shadowry slider and grade the occasioncord to March 2007.

Select the dominant shadow of bulk declension at Feature I.

Question 19: Feature I: ______

A.   Slump

B.   Solifluction

C.   Landslide

D.   Rockfall

Question 20: Why did you extract the retort you did in Interrogation 19?

A.   Owing the shadow exhibitions estheticthat has rotated and moved down the excel concurrently a excavated roll referring-to to the deportment.

B.   Owing the shadow exhibitions where freeze-thaw processes effect in lobes of befoul melting spiritual downslope.

C.   Owing the shadow exhibitions the effect of change-of-place of befoul and bedshake down a hilly excel in repartee to lugubriousness,

D.   Owing the shadow exhibitions shakes that suddenly slid down a mountainside

 

 Double-click and primeeded Slope 1. Right click the address Slope 1, and then primeeded Show Altitude Profile.

Place your cursor balance the altitude mark chart and value the excel of the cords. Recall that the equation for excel is RISE/RUN and that the units must be the identical when dividing (that is, twain in meters).

Question 21: What is the RISE (Elevation mould) 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 retorts in Questions 21 and 22, what is the middle excel of the cord? 

A.   738 %

B.   190 %

C.   46.7 %

D.   25.4 %

Double-click and primeeded Feature J. Search the area in July 1998. Use the unromantic shadowry slider and grade the occasioncord to February 2003.

Select the dominant shadow of bulk declension at Feature J.

Question 24: Feature J: ______

A.   Slump

B.   Debris flow

C.   Mudflow

D.   Befoul Creep

Question 25: Why did you extract the retort you did in Interrogation 24?

A.   Owing the shadows exhibition estheticthat has rotated and moved down the excel concurrently a excavated roll referring-to to the deportment.

B.   Owing the shadows exhibition the effects of a ahead flowing and greatly mighty bulk of introduce, shakes, dregs, boulders, and trees.

C.   Owing the shadows exhibition the effects of a well-saturated and very-much fluid bulk of fine-textured dregs

D.   Owing the shadows exhibition the effect of a continuous downhill change-of-place of befoul,trees, and shakes due to the soundness of lugubriousness.

Double-click and primeeded Feature K.

Select the dominant shadow of bulk declension at Feature K.

Question 26: Feature K: ________

A.   Slump

B.   Debris flow

C.   Mudflow

D.   Befoul Creep

Question 27: Why did you extract the retort you did in Interrogation 26?

A.   Owing the shadows exhibition estheticthat has rotated and moved down the excel concurrently a excavated roll referring-to to the deportment.

B.   Owing the shadows exhibition the effects of a ahead flowing and greatly mighty bulk of introduce, shakes, dregs, boulders, and trees.

C.   Owing the shadows exhibition the effects of a well-saturated and very-much fluid bulk of fine-textured dregs

D.   Because the shadows exhibition the effect of a continuous downhill change-of-place of befoul, trees, and shakes due to the soundness of lugubriousness.

 Double-click and primeeded Slope 2. Right click the address Slope 2, and then primeeded Show Altitude Profile.

Place your cursor balance the altitude mark chart and value the excel of the cords. Recall that the equation for excel is RISE/RUN andthat the units must be the identical when dividing (that is, twain in meters).

Question 28: What is the RISE (Elevation mould) 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 retorts in Questions 28 and 29, what is the middle excel 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 bulk declension adventure do you wait-for to tramp faster (Feature I or K)? Why?

A.   Feature I owing it is one of the fastest shadows of bulk declension

B.   Feature K owing it is one of the fastest shadows of bulk declension

C.   Feature I owing it is one of the slowest shadows of bulk declension

D.   Feature K owing it is one of the slowest shadows of bulk declension