Geology 250: Beaches and Coasts

Lecture: Mon.Wed/Fri: 12:00 - 12:50

Instructor: Dennis Hubbard - 405 Carnegie; tel: 8346;dennis.hubbard@oberlin.edu; office Hrs: Mon 3-4; Tue 10-11

Office hours: to be announced

Today’s coastlines provide a dramatic physical and biotic transition from land to sea. Their ancient counterparts provide a rich record of past environments and changes in local and global processes. This course offers an overview of coastal processes and their control over modern and ancient coastal systems. It starts with a discussion of modern ocean/lake processes, sediment transport, and coastal deposition. We will then use the models developed from present-day beaches and nearshore deposits to understand ancient coastal systems preserved in the geologic record. Finally, we will examine the growing pressure placed on today’s coastline by growing population and human exploitation. The course uses basic and advanced geologic principles to understand how coastal systems are assembled and preserved.. PLEASE Note Prerequisite: GEOL 120, 160, or 162.

Geol 250: Beaches & Coasts

Three weekly lectures (MWF 12 - 12:50: Carnegie 301) are supplemented by laboratory exercises and field trips to view modern and ancient coastal deposits.. On some Fridays, we will combine lecture and lab to allow us to travel farther or look at things in more detail - please plan to bring a lunch on those days. Also, please note that there is a mandatory $10 laboratory fee for all Geology courses with labs.

Text: Davis, R, and FitzGerald, D., 2003, Beaches and Coasts, Blackwell Publishing, UK. It is available in the Oberlin College bookstore. Supplemantal readings will be placed on eres.

Photo: Essex Inlet, Massachusetts, showing well-developed flood- and ebb tidal deltas at low tide.

NOTE: The following is a working schedule and is subject to change.As the course progresses, I will try to keep it up to date based on changes in class pace, so please check it often. I will occasionally post class photos after field trips. Click here to look at the latest.
GRADING: Your final grade will be based on three exams (ca. 70%), a cumulative lab grade (ca. 20-25%) and a project/paper grade (ca. 5-10%). The exams increase in importance through the semester and the last exam is cumulative. The lab grade is based on a series of formal exercises to be completed in lab and on your own. The project/paper grade is based on participation in two week-end field trips (note: a term paper may be substituted for one trip; but attendance in at least one trip is mandatory). The Oberlin Honor Code is in force for all graded activities. You are expected to complete work on your own except where otherwise instructed.
POWERPOINT: You can download trimmed down versions of the PowerPoint lectures from eres. Please print them three per page. For instructions, click HERE.
Day Date Topic Readings/Activity (click here for eres)
Mo 9 Feb Beaches & Coasts: an Introduction "Beaches & Coasts" (B & C) pp. 2-10
We 11 Feb Tectonic Controls on Coastal Development B & C pp. 11-47; Inman & Nordstrom (1971); Check out these animations: convergent and divergent margins
Fr 13 Feb FIELD TRIP: Old Woman Creek (coastal environments & methods) -leave at noon Clich HERE for trip photos
Mo 16 Feb Sediment & Sediment Transport B & C pp. 47-55; Check out this animation
We 18 Feb Sea Level as a Control of Coastal Development B & C pp. 56-74; Fall Velocity Ex and Sed Transport Ex are due (Note: go to EXPLANATION for details on what do do).
Fr 20 Feb Coastal Processes: Waves 01 B & C pp. 101-114; Check out these animations: wave motion; wave motion2; swash;
  LAB02 Sediment Analysis; Coastal Landforms  
Mo 23 Feb Coastal Classification: Waves 02 Wave Calculator Exercise DUE; Wave return Ex
We 25 Feb Processes: Tides - 01 B & C pp. 189-208; Stone (2002)
Fr 27 Feb Processes: Tides - 02 B&C pp. 278-288; BEDFORM paper??
  LAB03 Sediments Transport; Primary Sedimentary Structures
Mo 01 Mar The Beach B & C pp. 115-129; Check out this animation
We 03 Mar Barrier Islands B & C pp. 130-166; 175-187; check out this animation
Fr 05 Mar Behind the Barrier B & C pp. 245-278
  LAB04 Modern Environments vs. Ancient Facies
Mo 8 Mar
FIRST EXAM click for Help Questions or go to eres for an MS Word version
We 10 Mar

Tidal Inlets-1

B & C pp. 209-244
Fr 12 Mar Tidal Inlets-2 Hubbard et al (1977); FitzGerald et al (2000)
  LAB05 Interpreting Coastal Landforms: before lab, please fill in the Inlet Sed Structures sheet
Mo 15 Mar Coastal Dunes B & C pp. 168-187; check out this animation
We 17 Mar The Beach Cycle: Erosion/Recovery B & C pp. 371-179
Fr 19 Mar Lab will start at 1:00: Ancient Coastal Systems Horn et al (1978)
Mo 22 Mar River Deltas B & C pp. 289-306; LSU delta plan
We 24 Mar Glaciers and Glaciated Coasts B & C pp. 307-335
Fr 26 Mar Reefs and Carbonate Coastlines B & C pp. 353-370; make a RELATIVE sea-level curve for Boston
  NO LAB: Trade for first week-end trip
BREAK: 27 March - April 4
A note for your planning purposes: The activities for this week will take part in groups and will probably be rather time-consuming. Plan on ca. 6-8 hours outside of class and a need to coordinate schedules withing your group. I have made allowances elsewhere in your schedule to offset this larger-than-normal time commitment.
Mo 05 Apr Lake Erie Environments & Processes: INTRO to Oil Spill Exercise READ: "Oil Spill Primer"; form "companies"; Examine posted maps outside Carnegie 212
We 07 Apr DISCUSSIONS: Oil-Spill Planning RE-READ: "Oil Spill Primer"; form "companies"; Use maps outside Carnegie 212, photos, etc. to identify problems & strategies (group)
Fr 09 Apr Group Presentations/Discussion: A Protection Scheme for Lake Erie:
  LAB07 Simulated Oil Spill: response,Protection & clean-up
Mo 12 Apr
Individual follow-up meetings after oil-spill exercise (15 minutes by groups)
We 14 Apr Beach Erosion basics; Field Trip Prep B & C pp. 371-379; Beach Stability Ex; check out this animation
Fr 16 Apr WEEK-END FIELD TRIP: leave at 12:00 for Indiana Dunes; return Sunday PM; come prepared to camp out (let me know if you need something - we will provide tents, but if you have one, please let me know.  Click here for photos
Mo 19 Apr NO CLASS - trade-off for week-end field trip
We 21 Apr  SECOND EXAM: for Help Questions click here. This exam will be given as a take-home, so you will just be picking it up. We will also set some guidelines for taking the test and discussingt he best time for a help session.
Fr 23 Apr FIELD TRIP: to the Port of Lorain (leave at 12:30); click here for harbor charts over time Viles&Spencer (1995): Ch 1 and Ch 8
Mo 26 Apr Sea level & coastal facies evolution; a review

Second exam is due at the start of class - NO EXCEPTIONS!; Start reviewing the UGA web site on Sequence Stratigraphy by clicking here

We 28 Apr

"Sequence Stratigraphy for Dummies!"

Look over the UGA Aequence Stratigraphy page in greater detail; again, click here
Fr 30 Apr Hydro Lecture @ 12:15: Charles Harvey: Severance 108 (Pizza is provided)
  LAB08 Sequence Stratigraphy and the coastal zone  
Mo 03 May The Great CZM Debate click here for details
We 05 May NO CLASS: trade-off for week-end field trip  
Fr 07 May WEEK-END FIELD TRIP: leave at 12:00 for Kentucky; return Sunday mid PM; come prepared to camp out (let me know if you need something - we will provide tents, but if you have one, please let me know.
Mo 10 May TBA  
We 12 May TBA  
Fr 14 May CLASS Wrap-up; evaluations  
Sat 22 May
FINAL PROJECT is due at 5:00 PM (no exceptions)  - Help Questions

* For changes in the syllabus, please go to: http://www.oberlin.edu/~Geopage/Courses/ Additional readings from the primary literature will be added as the course progresses.
** For those choosing to go on only one field trip

For some cool GeoAnimations, click here

 

References

Fitzgerald, D.D., Kraus, N.C. and Hands, E.B., 2000, Natural mechanisms of sediment bypassing at tidal inlets, U.S. Army Corps of Engineers Technical Note IV-30, 9p.

Inman, D.L., and Nordstrom, C.E., 1971, On the tectonic and morphologic classification of coasts, J. of Geology, 79: 1-21.

Stone, R., 2002, Norway goes with the flow to light up its nights, Science 299: 339.