Overview given by: Katie Halvorson.  Adjacent watersheds that drain into Umpqua just west of Scottsburg, Or.  Both Eocene Tyee Formation  Studied how.

Slides:

Advertisements

Similar presentations

Soil The product of weathering of rocks

Advertisements

Investigation 3 Earth History Grade 6

Sand Control Fundamentals & Design

The specification states that you need to be able to: The specification states that you need to be able to: Define and explain the following terms: Define.

Sedimentary Rocks Chapter 4 Section 4.

Sedimentary Rocks Section 3.3.

Chemical & Mechanical Weathering How is soil formed?

EARTH SCIENCE Geology, the Environment and the Universe

Objectives Describe how surface water can move weathered materials.

The Grand Canyon A water created landform. The WOW Factor.

Topic 14 – Landscape Development and Environmental Change

Section 2: Wave Erosion Preview Key Ideas Shoreline Erosion Beaches

Canyons, Karoo Landscapes and Scarp Retreat

Unit 5 – Weathering, Erosion, & Deposition Review

UNIT 5 WEATHERING AND WATER PART 2 SOIL. Soil-solid earth material altered by physical, chemical, & organic processes so it can support rooted plant life.

The Rock Cycle. Minerals A natural occurring solid with a crystalline structure. Nonliving. Quartz, diamond, and salts are all minerals. Used in jewelry.

Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Section 1 Rocks and the Rock Cycle Chapter 6 Objectives Identify.

Regional Geology of Khwisero District, Kenya April 2012 Scott Patterson.

Landscapes and Landforms. What is a Landscape? A landscape is a region on Earth’s surface in which various landforms, such as hills, valleys, and streams,

Chapter 5.2: Soils.

Surface Water and Stream Development. Surface Water  The moment a raindrop falls to earth it begins its return to the sea.  Once water reaches Earth’s.

Agents of Metamorphism

1 4 Geology and Groundwater Introduction –Geology complexities are reflected in hydrogeology –Geology is the basis for any groundwater investigation Topics.

Harry Williams, Geomorphology1 Soils on Slopes – Summary: A soil on a slope has strength because of inherent frictional properties, cohesion and normal.

Unit 3 – Gradational Processes.  Stability is determined by the relationship between the driving and resisting forces.  Driving forces – move earth.

Sedimentary Rocks Chapter 4 Section 4. Sedimentary Rocks Sediments are loose materials like rock fragments, mineral grains, and bits of shell. Sediments.

Stream Erosion and Transport

Aim: How are landscapes defined? Do Now: Try to define the following vocabulary terms in your own words or try to give descriptions of what these landscapes.

The specification states that you need to be able to: The specification states that you need to be able to: Define and explain the following terms: Define.

Topic 14 – Landscape Development and Environmental Change Landscapes, or topography are the features of the Earth’s surface. There are Four main ways to.

Bell Ringer In a short paragraph(3-5 sentences)….…describe what uses we have for soil and why it is important to our ecosystem.

Soil Formation.

Soils & Soil Formation-The Results of Weathering

Landscapes A landscape is a region on Earth’s surface. (See p. 2 of your reference table)

Landforms due to Mechanical and Chemical processes

LANDSCAPES – Development and Change. Major Points - Landscape characteristics are the result of - interaction of forces of crustal movement - climate,

Landscape Development THE SHAPE OF A LANDSCAPE IS ALSO KNOWN AS IT’S.

1 Unit 2 River processes produce distinctive landforms in their valley.

Geologic Rock Cycle. Igneous  Transportation  Erosion  Weathering Sedimentary.

Sediment and Sedimentary Rocks

Guided Notes about Soils

MOST SEDIMENTARY ROCKS FORM IN Rock Color The color of a sedimentary rock will be determined by the cementing material and sediment composition Red.

What do you know about sedimentary rocks? Key Question: Scripps Classroom Connection.

4 Geology and Groundwater

Petroleum System – Source Rock

Rates of Weathering Chapter 10 – Section 2 (Foldable Notes)

Aim: How are landscapes defined? Do Now: Try to define the following landscapes in by giving descriptions and facts that characterize each landscape. 1)

Topic 14 – Landscape Development and Environmental Change

Rocks, Weathering, and Erosion Test Review

Standard S6E5c. Classify rocks by their process of formation.

Rocks made of bits & pieces of other rocks.

Topic: Sedimentary Rocks

Harry Williams, Geomorphology(21)

LAB 1: Maps, Rocks and Soil Profiles

Grade 11 Geomorphology Canyons, Karoo Landscapes and Scarp Retreat.

Section 1: Surface Water Movement

Key Question: How do ridges, uplands and fault scarps form?

Key Question: How do plateau landscapes form? Key Words:

Warmup What do you think is the best way to prevent erosion? Why?

Soil Section 5.2.

Rivers and Streams.

SEDIMENTARY ROCKS.

Landscapes Earth Science Mr. Cloud Zion National Park, Utah.

Rocks made of bits & pieces of other rocks.

Formation of Sedimentary Rocks

Sedimentary Rock The rocks that form the Earth’s surface are broken down and washed away by mechanical and chemical weathering and erosion. But rocks are.

Rivers and Streams.

Rocks made of bits & pieces of other rocks.

Unit 2: Rocks and Minerals

Presentation transcript:

Overview given by: Katie Halvorson

 Adjacent watersheds that drain into Umpqua just west of Scottsburg, Or.  Both Eocene Tyee Formation  Studied how different the two watersheds, Franklin and Harvey, are in different rock properties.

 Tyee Formation extends over 10,000 km^2  Tyee contains primarily massive sandstone beds with a range of 1-10m thick.  Other studies have shown that long-term erosion rates balance rates of rock uplift.

 Geological setting, Petrology, rock mechanics, lidar, and fieldwork of the area.  They wanted to know how resistant the bed were compared to each other.

 They expected to find that harder rock will resist erosion and will produce steeper slopes.  Denudation rates (Rate the surface is being lowered by erosion) must be higher than the resistant rock weathering rate to give the hillslope form that is found there.

 Hillslopes perched above resistant beds erode at app. half the pace of hillslopes that are by knickpoints/waterfalls.  Thin sections found no significant difference in grain size, porosity, or mineral composition between typical and resistant Tyee samples BUT small tributary hillslope gradients vary significantly depending on the presence/absence of resistant rock.

 Franklin watershed may be lasting only a shorter time more than Harvey.  Minerals and clay cements strengthen cliff- forming bed in Franklin.  When using lidar, they concluded that Harvey hillslopes are 1.3 times steeper than Franklin.