Cancelled Sessions

Hey everyone,

Just wanted to let you know that there will be no sessions on Tuesday, November 29th and Monday, December 5th. I will be making quizzes for these sessions and uploading them to the site, but I can't make it to the sessions. The last S.I. session will be on Tuesday, December 6th.
Sorry for any inconvenience,

Garrett

Quiz #33

22 November 2011

S.I. Session 33 Quiz

This quiz covers material from the lecture on Monday, November 21st.

Part a) Match the term to its definition:

                TERMS:

a) Arête                               b)Lateral Moraine                            c)Plastic

d)Glaciers            e)Retreating Glaciers                     f)Calving

g)Ice Crystals     h)Basal Slip                                         i)Rivers

                DEFINITIONS:

1)__This occurs when glaciers reach the sea and the toe of the iceberg breaks off and falls into the sea.

2)__These flow downhill but the ice front melts back.

3)__This type of glacial flow involves the motion of tiny ice crystals past eachother.

4)__The glacier slides as a single rigid block over a layer of water in this type of glacial motion.

5) __A thin, almost knife-like, ridge of rock which is typically formed when two glaciers erode parallel U-shaped valleys.

6)__ Parallel ridges of debris deposited along the sides of a glacier..

7)__These produce U shaped valleys.

8)__These produce V shaped valleys.

9)__These have an interlocking metamorphic texture.

Part b) Why can ice be likened to sedimentary, igneous, and metamorphic rocks?

Part c) True or False:

                Mark T (true) or F (false) in the blank provided:

                                1)__Solid ice floats in liquid water.

2)__On Greenland, the ice sheet is thickest at the center of the island.

3)__Glaciers cannot form near the equator.

4)__The equilibrium line on a glacier is located where snowfall equals input.

5)__On a continental glacier the ice flows downward and outward from the thickest section.

6)__Glaciers grind, crush, and scratch rocks as they travel.

7)__Sea level doesn’t rise if ice on land melts or slides into the ocean.

8)__The collapse of ice shelves does not increase sea level.

Announcement

 Hey Everyone,

There will be no S.I. session on Tuesday (11/22/2011) and Thursday (11/24/2011) next week due to Thanksgiving break. Dr. Everett gave us a list of figures that will be covered on the final exam on Friday November 18th, I will write it out below in case you missed it.

Geology 101 Final Exam (Everett)

Friday Dec 9 2011 3-5pm
20 questions on Chapters 19-23 plus
10 extra questions on these figures:
1) p.38-39 Figure 2.12
2) p.92 Figure 4.3
3) p.129 Figure 5.16
4) p.153 Figure 6.5
5) p.255 Figure 10.11
6) p.314 Figure 12.15
7) p.344 Figure 13.8
8) p.379 Figure 14.10
9) p.400 Figure 15.7
10) p.464 Figure 17.9

Good luck guys!
Have a great Thanksgiving,
Garrett

Quiz #32

21 November 2011

S.I. Session 32 Quiz

This quiz covers material from the lecture on Friday, November 18^th.

Part a) Match the term to its definition:

                TERMS:

a)Carbonate Compensation Depth          b)Mid Ocean Ridges       c)Turbidity Current

d)Continental Shelves                                   e)Turbidites                       f)Continental Slope

g)Active                                                               h)Passive                             i)Accretionary Wedge

                DEFINITIONS:

1)__Consists of sediments scraped off of the subducting slab.

2)__These deposits form seaward of submarine fans.

3)__The sites at which ocean basins are formed.

4)__The depth below which carbonate sediments do not accumulate.

5) __These are important as fishing grounds and as oil and gas reservoirs.

6)__There are two types of these margins, Marianas and Andean.

7)__At a passive continental margin, this is the remnant of the original rift zone.

8)__A flow of muddy water down the continental slope.

9)__The east coast of North America is a good example of one of these continental margins.

Part b) What happens at the carbonate compensation depth? Why?

Part c) True or False:

                Mark T (true) or F (false) in the blank provided:

1)__The carbonate compensation depth is about 3.5 kilometers below the ocean’s surface.

2)__Passive continental margins are tectonically quiet.

3)__At an active continental margin of Andean type, there is no great accumulation of sediments above the accretionary wedge.

4)__ At an active continental margin of Marianas type, there is no great accumulation of sediments above the accretionary wedge.

5)__The data used to generate the global map of seafloor topography was gathered by manned submersibles.

6)__Carbonate deposits form in shallow water.

Quiz #31

17 November 2011

S.I. Session 31 Quiz

This quiz covers material from the lecture on Wednesday, November 16^th.

Part a) Match the term to its definition:

                TERMS:

a)Storm Surge                   b)Ocean Currents            c)Crest

d)Wavelength                   e)Storm Tide                      f)Spring Tides

g)Sand Spit                         h)Neap Tides                     i)Trough

                DEFINITIONS:

1)__The term for the top of a wave.

2)__Occurs when a seawater dome built up by a hurricane comes ashore.

3)__The largest tides. These occur when the sun’s gravitational pull and the moon’s gravitational pull align.

4)__These erode and deposit sediments.

5) __The distance from crest to crest.

6)__The term for the bottom of the wave.

7)__The smallest tides, these occur at quarter moons since the sun and moon act in opposition.

8)__A tongue of sand that extends from the coastline out into the ocean.

9)__These occur when a storm surge coincides with the high tide.

Part b) Draw and label a typical beach profile:

Part c) True or False:

                Mark T (true) or F (false) in the blank provided:

1)__A beach in dynamic equilibrium maintains a balance between erosion and sedimentation.

2)__Beaches are dynamic, so not all parts of the typical sea profile appear at all times.

3)__Coastlines tend to straighten out over time.

4)__In the surf zone, wave tops and bottoms travel at the same speed.

5)__Waves in the open ocean approach the coast at around ten meters per second.

6)__All coastlines are the same, they all have sand.

7)__Wave height depends on the depth of the ocean.

8)__Tides exist because of the gravitational pull of planets like Mars and Jupiter.

Quiz #30

15 November 2011

S.I. Session 30 Quiz

This quiz covers material from the lecture on Monday, November 14^th.

Part a) Match the term to its definition:

                TERMS:

a)Chemical          b)Erosion                             c)Talus Slope

d)Physical            e)Playa Lake                       f)Dunes

g)Storms              h)Alluvial Fan                     i)Salinization

                DEFINITIONS:

1)__An evaporate deposit caused by the evaporation of salty water.

2)__These are infrequent in deserts, but when they do occur they often have high corrosive capabilities and lead to flash floods.

3)__This type of weathering dominates in desert climates.

4)__These are eolian formations deposited by wind.

5) __These desert sedimentary structures are deposited as a desert stream encounters flat terrain.

6)__This type of weathering forms clay minerals and Iron oxides.

7)__This is an apron of sediment that occurs at the base of a cliff.

8)__&__ Farmlands and grazing lands are being lost because these two processes are negatively affecting the soil.

Part b) Explain the process by which pediments are formed:

Part c) True or False:

                Mark T (true) or F (false) in the blank provided:

                                1)__Deserts make up 20% of earth’s surface.

2)__Dunes are fluvial, deposited by wind.

3)__Chemical weathering dominates physical weathering in desert climates.

4)__Flash floods are commonplace in deserts during periods of heavy rain.

5)__Wind is the main weathering agent in deserts.

6)__Oftentimes, a playa lake is a remnant of a glacier.

7)__Desert areas typically receive 5 to 25 millimeters of precipitation per year.

8)__Excessive cultivation is one of the main causes of desertification.

Quiz #29

14 November 2011

S.I. Session 29 Quiz

This quiz covers material from the lecture on Friday, November 11^th.

Part a) Match the term to its definition:

                TERMS:

a)Wind                 b)Barchan                           c)Air Circulation

d)Easterlies        e)Saltation                          f)Coriolis Effect

g)Westerlies      h)The Sun’s Rays              i)Loess

                DEFINITIONS:

1)__This is caused by solar heating and earth’s rotation.

2)__These crescent shaped dunes form if there is a limited sand supply and a unidirectional wind.

3)__The process by which sand particles jump up and over the crest of a sand dune.

4)__These are unstratified windblown silt deposits.

5) __This is the primary agent of sediment transport in deserts.

6)__This is caused by the earth’s rotation, winds are deflected to the right in the Northern Hemisphere.

7)__These strike the earth at an angle near the poles and vertically near the equator.

8)__These prevail in temperate zones.

9)__These prevail in tropic zones.

Part b) What factors affect the shape of a sand dune?

Part c) True or False:

                Mark T (true) or F (false) in the blank provided:

                                1)__Geological processes shaped by wind are lacustrine.

2)__The amount of sand moved by wind rises rapidly with wind speed.

3)__The maximum height of a sand dune depends on the wind speed at the base of the sand dune.

4)__Sand particles slip down the windward face of a sand dune.

5)__The angle of repose of a sand dune is 35 degrees.

6)__A sand dune migrates forward, similar to a conveyor belt.

7)__Air rises at the equator, cools, and then releases moisture in the form of storms.

8)__Prevailing westerlies exist in the tropics.

Exam #3 Prep

Hey Gang,

Exam Number three will be on Wednesday November 9th. The quizzes that are relevant to exam three are 21 through 28. Good luck to all of you guys! Underneath I will be writing out the page numbers from the important figures that will be covered on this exam.

Best regards,

Garrett


p.339 Fault Slip and Elastic Rebound Theory
p.340 Irregularities in the earthquake cycle
p.341 Earthquake Progression
p.342 Foreshock/Aftershock
p.343 Seismograms
p.344 Types of waves and their speeds
p.347 Locating an earthquake by triangulation
p.351 Fault types and first earthquake motion
p.371 P wave and S wave shadow zone
p.370 Reflection and refraction
p.372 The simple labeling scheme
p.373 Airguns
p.376 S wave speed throughout earths interior
p.379 Geotherm vs. Melting curve
p.380 Post glacial rebound
p.386-387 Magnetic fields
p.388-389 Magnetic field reversals
p.395 Hydrosphere
p.399 Earth's thermal equilibrium with the sun
p.400 Solar radiation
p.404 Glacial cycle
p.406 Milankovitch cycle
p.409-411 Carbon cycle
p.423 Weathering
p.424-425 Weathering Rates and Factors
p.437 Angle of repose, cohesiveness
p.440 Gravity
p.444 Earthquake to mass waste
p.448 Slumping
p.462 Mississippi river and tributaries
p.463 Wetlands
p.464 Porosity
p.465 Groundwater table
p.467 Confined aquifers
p.469 Cone of depression
p.470 Saltwater Freshwater battle
p.476 Contamination
p.485 Tributaries, channels, meanders
p.486 Pointbars and oxbow lakes
p.493 Waterfalls
p.494 Laminar vs. turbulent flow
p.495 Suspended and bed load
p.497 Topset, foreset, and bottomset beds
p.498 Deltas
p.505 Generalized longitudinal Profile