<p> The concern about the preservation of a valuable natural
resource such as Point Pelee is readily apparent, yet
along with this concern is the need for raw materials
such as aggregates dredged from submarine sand and gravel
deposits. This could involve a conflict in resource management,
therefore the question of how significant
commercial dredging is as a process element in the local
coastal dynamics needs to be resolved. To provide a basis
for this assessment, offshore and onshore surveys, bottom
sediment analyses, wind-wave analyses, and current measurements
have bee·n taken over the last two years to derive a
sediment budget for the Point Pelee spit and shoal system. </p> <p> The magnitude of response was measured by the morphologic
and volumetric variation between successive profiles at
18 sites throughout Point Pelee. The beach zone of the
east shore evidenced the most dramatic morphologic and
volumetric changes to its profile, with an average loss
of 17.5 m3/m from fall to spring of 1975. </p> <p> Maximum material restored to the east beach in 197-5 was
4.5 m3/m. In terms of annual.quantitative changes to
the beach budget, the westward migration of the Point is
five times greater for the east shore than for the west.
The sediment budget for 1974-75 shows a net deposition
to the south of Point Pelee on the order of 440,000 m3. </p> / Thesis / Bachelor of Arts (BA)
| Identifer | oai:union.ndltd.org:mcmaster.ca/oai:macsphere.mcmaster.ca:11375/20153 |
| Date | 06 1900 |
| Creators | Shaw, John |
| Contributors | McCann, S. B., Geography |
| Source Sets | McMaster University |
| Language | English |
| Detected Language | English |
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