Upload File

13.3 river valleys. river valleys rain may form a small valley in soft bedrock on hill slope via...

  • Home
  • Documents
  • 13.3 River Valleys. River Valleys Rain may form a small valley in soft bedrock on hill slope via headwater erosion Form in wet areas Stream cuts a gully
28
Chapter 13 13.3 River Valleys

Upload: clinton-parsons

Post on 18-Dec-2015

213 views

Category:

Documents


1 download

Report

Tags:

TRANSCRIPT

Page 1: 13.3 River Valleys. River Valleys Rain may form a small valley in soft bedrock on hill slope via headwater erosion Form in wet areas Stream cuts a gully

Chapter 1313.3 River Valleys

Page 2: 13.3 River Valleys. River Valleys Rain may form a small valley in soft bedrock on hill slope via headwater erosion Form in wet areas Stream cuts a gully

River ValleysRain may form a small

valley in soft bedrock on hill slope via headwater erosion

Form in wet areasStream cuts a gully

and may disappearEach rain increases

LengthWidthDepth of River

Page 3: 13.3 River Valleys. River Valleys Rain may form a small valley in soft bedrock on hill slope via headwater erosion Form in wet areas Stream cuts a gully

Headward Erosion

is demonstrated in this 1906 photo taken near Mount Tamalpais in Marin County, California. Groundwater sapping is causing this gully to lengthen up the slope.

Page 4: 13.3 River Valleys. River Valleys Rain may form a small valley in soft bedrock on hill slope via headwater erosion Form in wet areas Stream cuts a gully
Page 5: 13.3 River Valleys. River Valleys Rain may form a small valley in soft bedrock on hill slope via headwater erosion Form in wet areas Stream cuts a gully

Permanent RiverStream cuts down

deep enough to become permanent

If tributaries become permanent, then river system is born

Page 6: 13.3 River Valleys. River Valleys Rain may form a small valley in soft bedrock on hill slope via headwater erosion Form in wet areas Stream cuts a gully

Canyons and V shaped ValleysRiver Valley Canyon

Page 7: 13.3 River Valleys. River Valleys Rain may form a small valley in soft bedrock on hill slope via headwater erosion Form in wet areas Stream cuts a gully

Canyons, Gorges and ChasmsVery Steep almost

Vertical sidesRegions of less rainfallForm 2 ways:

Lack of rainfallErosion resistant

rocksFormation Factors:

Type of rockAmount of waterSediment in riverClimate of region

Page 8: 13.3 River Valleys. River Valleys Rain may form a small valley in soft bedrock on hill slope via headwater erosion Form in wet areas Stream cuts a gully

Gorge

Page 9: 13.3 River Valleys. River Valleys Rain may form a small valley in soft bedrock on hill slope via headwater erosion Form in wet areas Stream cuts a gully

Young ValleyV-shaped ValleysYoung RiverRiver cuts down into

channelUpper valley walls

widened by erosion

Page 10: 13.3 River Valleys. River Valleys Rain may form a small valley in soft bedrock on hill slope via headwater erosion Form in wet areas Stream cuts a gully

Old ValleyU-Shaped ValleyLess erosion of bedMore erosion of

channel sidesWide valley, broad

floor, gently sloping sides

Page 11: 13.3 River Valleys. River Valleys Rain may form a small valley in soft bedrock on hill slope via headwater erosion Form in wet areas Stream cuts a gully

Base LevelStream cannot erode

bed lower than body of water it flows into

Sea level is ultimate base level

Page 12: 13.3 River Valleys. River Valleys Rain may form a small valley in soft bedrock on hill slope via headwater erosion Form in wet areas Stream cuts a gully

Stream Piracy or stream capture

Headward erosion cuts through divide

One river captures or “pirates” the headwaters of another river

River grows largerExpands drainage basinFormation process of

great river systemsMississippi, Nile,

Ganges, etc.

Page 13: 13.3 River Valleys. River Valleys Rain may form a small valley in soft bedrock on hill slope via headwater erosion Form in wet areas Stream cuts a gully

RapidsSteep riverbedWater velocity is fastForms white-water

rapids

Page 14: 13.3 River Valleys. River Valleys Rain may form a small valley in soft bedrock on hill slope via headwater erosion Form in wet areas Stream cuts a gully

Rapids

Page 15: 13.3 River Valleys. River Valleys Rain may form a small valley in soft bedrock on hill slope via headwater erosion Form in wet areas Stream cuts a gully

WaterfallWater flows over

hard rockErodes softer rock

belowFalls are temporary

Undermines rock above leaving overhang

Overhang breaks offWaterfall recedes

upstream

Page 16: 13.3 River Valleys. River Valleys Rain may form a small valley in soft bedrock on hill slope via headwater erosion Form in wet areas Stream cuts a gully

Worlds Best WaterFalls

Page 17: 13.3 River Valleys. River Valleys Rain may form a small valley in soft bedrock on hill slope via headwater erosion Form in wet areas Stream cuts a gully
Page 18: 13.3 River Valleys. River Valleys Rain may form a small valley in soft bedrock on hill slope via headwater erosion Form in wet areas Stream cuts a gully
Page 19: 13.3 River Valleys. River Valleys Rain may form a small valley in soft bedrock on hill slope via headwater erosion Form in wet areas Stream cuts a gully
Page 20: 13.3 River Valleys. River Valleys Rain may form a small valley in soft bedrock on hill slope via headwater erosion Form in wet areas Stream cuts a gully
Page 21: 13.3 River Valleys. River Valleys Rain may form a small valley in soft bedrock on hill slope via headwater erosion Form in wet areas Stream cuts a gully
Page 22: 13.3 River Valleys. River Valleys Rain may form a small valley in soft bedrock on hill slope via headwater erosion Form in wet areas Stream cuts a gully
Page 23: 13.3 River Valleys. River Valleys Rain may form a small valley in soft bedrock on hill slope via headwater erosion Form in wet areas Stream cuts a gully
Page 24: 13.3 River Valleys. River Valleys Rain may form a small valley in soft bedrock on hill slope via headwater erosion Form in wet areas Stream cuts a gully
Page 25: 13.3 River Valleys. River Valleys Rain may form a small valley in soft bedrock on hill slope via headwater erosion Form in wet areas Stream cuts a gully
Page 26: 13.3 River Valleys. River Valleys Rain may form a small valley in soft bedrock on hill slope via headwater erosion Form in wet areas Stream cuts a gully
Page 27: 13.3 River Valleys. River Valleys Rain may form a small valley in soft bedrock on hill slope via headwater erosion Form in wet areas Stream cuts a gully
Page 28: 13.3 River Valleys. River Valleys Rain may form a small valley in soft bedrock on hill slope via headwater erosion Form in wet areas Stream cuts a gully

Asian River Valleys Jeopardy

Mesopotamia FOCUS QUESTION Why did early civilizations tend to develop in river valleys?

Unit One: River Valleys to the Classical World (Test Date: …alvaradohistory.com/yahoo_site_admin/assets/docs/Unit... ·  · 2014-05-13Unit One: River Valleys to the Classical World

Headwater Fish

The Indus River Valley By Victoria Lynn Pelkey 4 old river valleys this picture is of the four old river valley cultures

Chapter 12 Estuaries. Types of Estuaries Drowned river valleys Drowned river valleys –Most common type of estuary –They were formed by the “drowning”

Ancient Civilizations SOL WHI.3. During the Neolithic Age, permanent settlements appeared in river valleys and around the Fertile Crescent. River valleys

JEOPARDY – River Valleys – Round 1

Ancient China. The Geography of China’s River Valleys

Unit One: River Valleys to the Classical World (Test Date ... · Unit One: River Valleys to the Classical World (Test Date: 9/13 & 9/14) GPS: SSWH1 The student will analyze the origins,

River Valleys Honors Lesson 3 Notes.notebookmrharrison1.weebly.com/uploads/5/9/9/5/59959865/... · River Valleys Honors Lesson 3 Notes.notebook 2 October 02, 2017 Sep 179:27 AM The

River Valleys Continuum of Care Coordinated Entry · PDF fileRiver Valleys Continuum of Care Coordinated Entry System ... 0-3 Single VI-SPDAT ... River Valleys Continuum of Care Coordinated

Change from River Valleys to Classical Civilizationsmrfarshtey.net/classes/Classical _Civilizations.pdf · Change from River Valleys to Classical Civilizations ... • Axial Period:

GeographyMesopotamiaEgyptIndus Huang HE 100 200 300 400 500 JEOPARDY – River Valleys – Round 1

Chapter 5 Eastern River Valleys. Eastern River Valley Civilizations

Indus and Ganges River Valleys

Change from River Valleys to Classical Civilizations · Change from River Valleys to Classical Civilizations • ~1000 BCE • Location—China, India, Mediterranean World – PLEASE

LCT 25: STRATHS AND RIVER VALLEYS - … 25: STRATHS AND RIVER VALLEYS ... of this LCA. Valleys with No Wind Turbines ... National Park and part of the setting of the National

ANCIENT RIVER VALLEYS - learn.k20center.ou.edu

Skykomish-Snohomish River Valleys Region€¦ · VIEWS OF THE FUTURE - TOURISM 2.0 IN SNOHOMISH COUNTY Skykomish-Snohomish River Valleys Region Scenario-based Think Tank Workshop

Indus and Ganges River Valleys Coach Parrish OMS Chapter 4, Section 1

Indus and Ganges River Valleys - Schoolwires · PDF file• Find out about life in an ancient city ... in the Indus and Ganges river valleys. Vocabulary ... Harappa and Mohenjo-Daro

JEOPARDY – River Valleys – Round 2

Headwater Salamanders

HYDROLOGICAL CONNECTIVITY BETWEEN HEADWATER STREAMS … · HYDROLOGICAL CONNECTIVITY BETWEEN HEADWATER STREAMS AND ... review of the extensive literature on headwater streams, but

Our BiodiverCity - Calgary River Valleys

River Valleys

Chapter 12 Estuaries. Types of Estuaries Drowned river valleys Drowned river valleys –Most common…

Unit One: River Valleys to the Classical World 1 WH.pdf · Unit One: River Valleys to the Classical World GPS: ... What we can learn from documents ... During Asoka's time, stone

River Valleys Unit Mesopotamia Civilization Emerges along the Tigris and Euphrates Valleys

Chapter 5.1: The Geography of China’s River Valleys · Section 1 The Geography of China’s River Valleys Chapter 5 Ancient China . Objectives Examine the geography of ancient China

Section 1 The Geography of China’s River Valleys Chapter 5 Ancient China

Ancient River Valleys--China

Cirque lakes in the rockies Glaciers in headwater valleys tend to scour out a bowl shaped basin and the excavated material forms a moraine at the lake

The Idomoid languages of the Benue and Cross River valleys