Rocks weathering erosion deposition rock cycle and watersheds
1 / 21

Rocks, Weathering, Erosion, Deposition, Rock Cycle, and Watersheds - PowerPoint PPT Presentation

  • Uploaded on
  • Presentation posted in: General

Rocks, Weathering, Erosion, Deposition, Rock Cycle, and Watersheds. Rocks – Types and Characteristics. Igneous Rocks: Origin Texture Characteristics Mineral composition. State whether each is a characteristic of a plutonic or volcanic rock: Large crystal size

I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.

Download Presentation

Rocks, Weathering, Erosion, Deposition, Rock Cycle, and Watersheds

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.

- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript

Rocks, Weathering, Erosion, Deposition, Rock Cycle, and Watersheds

Rocks – Types and Characteristics

Igneous Rocks:




Mineral composition

  • State whether each is a characteristic

  • of a plutonic or volcanic rock:

  • Large crystal size

  • Vesicular

  • Small crystal size

  • Batholith

  • Pumice

  • Solidified lava

  • Solidified magma

Which graph best represents the textures of granite, pegmatite, and rhyolite?





Rocks – Types and Characteristics


Types: Clastic, chemical, organic

Environment of formation

Environment of Formation

  • Sediments accumulate in streams, lakes, and oceans. Sediments deposit based upon water velocity.

Which graph best represents the correct relationship between the discharge of a river and the particle size that can be transported by that river?

Rocks – Types and Characteristics

  • Metamorphic Rocks:

  • Parent rocks

  • Heat and pressure

  • More dense; less porous

  • types of metamorphism

  • regional

  • contact/local

  • Texture

  • foliated vs. nonfoliated


  • Types:

    • Mechanical

    • Chemical

Measuring Weathering

  • Mechanical:

    • Lab----Sugar Cubes:

      • 1.Solving for changes in mass and volume

      • 2.Calculating Rate of Change (ESRT Page 1)

  • Chemical:

    • Lab----Acid Rain and Rock Types

      • 1.Solving for mass loss

      • 2.Calculating Rate of Change

Be able to predict future changes based on observations and measurements.

Rates of Weathering

Calculate the rate of change for each rock type and predict the mass for each rock type if exposed for additional 52 hours.

Erosion = Transport

Agents of erosion




Describe the agent of

erosion in the picture.

Particle Size and Water Velocity

Sediments were analyzed

near the shore of a nearby

stream. The sediments were

mostly between 0.2 – 1.2 cm in


1.Which sediment particle

type has that diameter?

2. What velocity (cm/s) is required

to move the sediment particle?

3.If the sediment was compacted

and cemented together, what type

of sedimentary rock will it form?

4. The velocity of a stream was

measured to be 75 cm/s. What

sediments could be transported

at that velocity?

Characteristics of Sediments

  • Porosity

  • Permeability

  • Water retention

  • Saturation

Describe the relationship between

porosity and permeability

Describe the relationship between water retention and particle size

Describe the relationship between

Particle size and porosity/permeability

The diagram below shows columns A, B, C, and D that contain different sediments.

Equal volumes of water were poured through each column.

  • Which column of sediment retained the most water?

  • Which retained the least?

  • Which is most permeable?

  • Which is least permeable?

Stream and Meander Dynamics

  • The greatest stream velocities are found closest to points:

  • A and B

  • B and C

  • C and D

  • D and A

  • Erosion will occur at points:

  • A and B

  • B and C

  • C and D

  • D and A

  • Deposition will occur at points:

  • A and B

  • B and C

  • C and D

  • D and A

  • Which sediments will deposit first upon entering the lake?

The diagram below shows several different landscape features. Point X and Y indicate locations on the stream bank.

  • Identify which point, X or Y, has more stream erosion and explain why the amounts of erosion are different.

  • Explain why the stream meanders on the floodplain, but not in the mountains.

  • The beach consists of particles with diameters from 0.01 cm to 0.1 cm. Identify the sedimentary rock that will form when burial and cementation of these sediments occur.

  • Identify the feature at A.


ResistanceA cross-section of Niagara Falls

  • Which TWO rock units appear to be most resistant to weathering and erosion?

  • Lockport dolostone and Whirlpool sandstone

  • Rochester shale and Albion sandstone and shale

  • Clinton limestone and shale and Queenston shale

  • Thorold sandstone and Queenston shale

The block diagram shows a volcano

Which map shows the stream drainage pattern that most likely formed on the surface of this volcano?


Watershed boundaries,

or divides, are typically

defined by the highest

elevation that drains

a stream.

Stream Order

Identify the correct

Stream Order for each

of the following locations.

Rock Cycle

Page 6 of ESRT

  • Login