Lab 04/module 14: weathering and mass wasting


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Lab 05/MODULE 14: WEATHERING AND MASS WASTING

Note: Please belong to the GETTING STARTEDmodule to acquire how to maneuver through, and how to repartee the lab doubts, in the Google Earth () rudiment.

KEY TERMS

You should apprehend and apprehend the subjoined terms:

 

Avalanche

Frost wedging

Rockslide

Carbonation

Hydrolysis

Root wedging

Chemical Weathering

Landslide

Salt crystal growth

Debris flow

Mass sinking

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 operative to perfect the subjoined tasks:

·         Fulfill erosional processes and features educed by weathering and concretion sinking

·         Fulfill depositional processes and features educed by weathering and concretion sinking

·         Ponder the processes that educe concretion sinking plantforms

·         Distinguish incongruous weathering and concretion sinking archetypes

·         Calculate soar

·         Interpret the topographic feature of a plantscape

 

INTRODUCTION

This module ponders weathering and concretion sinking. Topics includephysical weathering, chemical weathering, and concretion sinking. Period these subject-matters may defense to be ill-matched, you allure acquire how they are inherently cognate.The modules set-out delay immodest celebrityt subject-matters, or vignettes, which are set-up in the related Google Earth rasp. These vignettes begin basic concepts of the weathering and concretion sinking. Some of the vignettes keep animations, videos, or inadequate doctrines that allure yield another perspective or visual sense for the subject-matter at operative.After balbutiation the vignette and associated links, repartee the subjoined doubts. Please hush that some links potentiality use a period to download grounded 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 rule the expedite of plantslides? (Check all that exercise).

A.   Soar of ground

B.   Instil full

C.   Volume of debris

D.   Season gone developed plantslide

Read Topic 2: Weathering

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

A.   Instil and soar of plant

B.   Debris archearcheemblem and instil

C.   Soar of plant and atmosphere

D.   Instil and atmosphere

Read Topic 3: Concretion Wasting

Question 3: What does the intercourse of lichen on boulders count scientists?

A.   It counts us the perpetrator esthetic of the debris

B.   It counts us the not-absolute season of a concretion sinking issue

C.   It counts us what the soar of the plant used to be

D.   It counts us what the dampness full was at the season of the concretion sinking issue.

Read Topic 4: Human Interaction

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

A.   On insipid areas loose from soars

B.   On hardnessd, non-jointed bedhurl that has not moved in the past

C.   At the infamous of unimportant drainage hollows

D.   At the top or parallel the nose of ridges, set tail from the tops of soars

 

Collapse and uncheck the INTRODUCTIONfolder.

GLOBAL PERSPECTIVE

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

Double-click and gatheredGLOBAL PERSPECTIVE.

Figure 1 is a graph pretexting the dominant archearcheemblem of weathering grounded on annual subsidence and atmosphere. If a residuum has a moderation annual atmosphere of 20°C and receives 190cm of subsidence annually, you can conspire these values (as denoted by the celebrity) to see this residuum’s dominant weathering is sound chemical.

For Questions 5 to 8, archearcheemblem the residuum notice yieldd into the Searchtab in Google Earth and pressEnter. When you come-to at your goal, use the chart in Figure 1, in conjunction delay Google Earth, to repartee each doubt. The moderation annual atmosphere and subsidence are yieldd respectively, in the perpetratorheses.

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

A.   Moderate chemical

B.   Sound chemical

C.   Moderate chemical delay frost action

D.   Very contempt weathering

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

A.   Moderate chemical

B.   Sound chemical

C.   Moderate chemical delay frost action

D.   Sound 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.   Sound chemical

C.   Moderate chemical delay frost action

D.   Sound 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.   Sound chemical

C.   Moderate chemical delay frost action

D.   Sound physical

Collapse and uncheck the GLOBAL PERSPECTIVE folder.

 

 

Weathering

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

Identify the dominant archearcheemblem of habitual weathering at the subjoined residuums. Use the photo links in Google Earth to acceleration you fulfill the archetype.

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 gatheredFeature G.

Select the dominant archearcheemblem of concretion sinkingat Feature G.

Question 15: Feature G: ________

A.   Slump

B.   Solifluction

C.   Landslide

D.   Rockfall

Question 16:Why did you gather the repartee you did in Doubt 15?

A.   Consequently the likeness pretexts esthetic that has rotated and moved down the soar parallel a pitted flatten not-absolute to the manner.

B.   Consequently the likeness pretexts where freeze-thaw processes product in lobes of begrime tender fragmentarily downslope.

C.   Consequently the likeness pretexts the product of motion of begrime and bedhurl down a precipitous soar in tally to priggishness,

D.   Consequently the likeness pretexts hurls that suddenly slid down a mountainside

Double-click and gatheredFeature H.

Select the dominant archearcheemblem of concretion sinking at Feature H.

Question 17: Feature H: _______

A.   Slump

B.   Solifluction

C.   Landslide

D.   Rockfall

Question 18: Why did you gather the repartee you did in Doubt 17

A.   Consequently the likeness pretexts esthetic that has rotated and moved down the soar parallel a pitted flatten not-absolute to the manner.

B.   Consequently the likeness pretexts where freeze-thaw processes product in lobes of begrime tender fragmentarily downslope.

C.   Consequently the likeness pretexts the product of motion of begrime and bedhurl down a precipitous soar in tally to priggishness,

D.   Consequently the likeness pretexts hurls that suddenly slid down a mountainside

 

Double-click and gatheredFeature I and ponder the area in September 1998. Use the unadorned likenessry slider and proceeding the seasonthread to March 2007.

Select the dominant archearcheemblem of concretion sinking at Feature I.

Question 19: Feature I: ______

A.   Slump

B.   Solifluction

C.   Landslide

D.   Rockfall

Question 20: Why did you gather the repartee you did in Doubt 19?

A.   Consequently the likeness pretexts estheticthat has rotated and moved down the soar parallel a pitted flatten not-absolute to the manner.

B.   Consequently the likeness pretexts where freeze-thaw processes product in lobes of begrime tender fragmentarily downslope.

C.   Consequently the likeness pretexts the product of motion of begrime and bedhurl down a precipitous soar in tally to priggishness,

D.   Consequently the likeness pretexts hurls that suddenly slid down a mountainside

 

 Double-click and gathered Slope 1. Right click the denomination Slope 1, and then gathered Show Height Profile.

Place your cursor balance the height feature chart and scold the soar of the threads. Recall that the equation for soar is RISE/RUN and that the units must be the similar when dividing (that is, twain in meters).

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

A.   738 meters

B.   190 meters

C.   46.7 meters

D.   25.4 meters

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

A.   738 meters

B.   190 meters

C.   46.7 meters

D.   25.4 meters

Question 23:Based on the repartees in Questions 21 and 22, what is the middle soar of the thread? 

A.   738 %

B.   190 %

C.   46.7 %

D.   25.4 %

Double-click and gathered Feature J. Ponder the area in July 1998. Use the unadorned likenessry slider and proceeding the seasonthread to February 2003.

Select the dominant archearcheemblem of concretion sinking at Feature J.

Question 24: Feature J: ______

A.   Slump

B.   Debris flow

C.   Mudflow

D.   Begrime Creep

Question 25: Why did you gather the repartee you did in Doubt 24?

A.   Consequently the likenesss pretext estheticthat has rotated and moved down the soar parallel a pitted flatten not-absolute to the manner.

B.   Consequently the likenesss pretext the products of a ahead flowing and greatly puissant concretion of instil, hurls, dregs, boulders, and trees.

C.   Consequently the likenesss pretext the products of a well-saturated and very-much fluid concretion of fine-textured dregs

D.   Consequently the likenesss pretext the product of a gradational downhill motion of begrime,trees, and hurls due to the hardness of priggishness.

Double-click and gathered Feature K.

Select the dominant archearcheemblem of concretion sinking at Feature K.

Question 26: Feature K: ________

A.   Slump

B.   Debris flow

C.   Mudflow

D.   Begrime Creep

Question 27: Why did you gather the repartee you did in Doubt 26?

A.   Consequently the likenesss pretext estheticthat has rotated and moved down the soar parallel a pitted flatten not-absolute to the manner.

B.   Consequently the likenesss pretext the products of a ahead flowing and greatly puissant concretion of instil, hurls, dregs, boulders, and trees.

C.   Consequently the likenesss pretext the products of a well-saturated and very-much fluid concretion of fine-textured dregs

D.   Because the likenesss pretext the product of a gradational downhill motion of begrime, trees, and hurls due to the hardness of priggishness.

 Double-click and gathered Slope 2. Right click the denomination Slope 2, and then gathered Show Height Profile.

Place your cursor balance the height feature chart and scold the soar of the threads. Recall that the equation for soar is RISE/RUN andthat the units must be the similar when dividing (that is, twain in meters).

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

A.   92.1 meters

B.   35.6 meters

C.   128 meters

D.   148 meters

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

A.   92.1 meters

B.   35.6 meters

C.   128 meters

D.   148 meters

Question 30:Based on the repartees in Questions 28 and 29, what is the middle soar of the thread? 

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 concretion sinking issue do you anticipate to rustication faster (Feature I or K)? Why?

A.   Feature I consequently it is one of the fastest archetypes of concretion sinking

B.   Feature K consequently it is one of the fastest archetypes of concretion sinking

C.   Feature I consequently it is one of the slowest archetypes of concretion sinking

D.   Feature K consequently it is one of the slowest archetypes of concretion sinking