Weeks 2-3: New England Week 6: Newfoundland Week 4: Quebec Week 5: Maritime Provinces APPALACHIANS...
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Transcript of Weeks 2-3: New England Week 6: Newfoundland Week 4: Quebec Week 5: Maritime Provinces APPALACHIANS...
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Weeks 2-3: New EnglandWeeks 2-3: New England
Week 6: NewfoundlandWeek 6: Newfoundland
Week 4: QuebecWeek 4: Quebec
Week 5: Maritime ProvincesWeek 5: Maritime Provinces
APPALACHIANS – Session 4
Louisiana to New EnglandLouisiana to New England
Becoming VagabondsBecoming Vagabonds
Weeks 1:Weeks 1:
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Quebec & Maritimes – Natural Sites
Quebec & Maritimes – Stats, Travel, People
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Quebec & Maritimes
– Natural Sites –
APPALACHIANS – Session 4
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QUEBEC AREA
Nova Scotia• Truro Tidal
Bore• Joggins
Fossil Cliffs
Quebec• St.
Lawrence River
• Chute de la Montmorency
New Brunswick• Bay of Fundy
• Hopewell Rocks
• Reversing Rapids
PEI• Island
stats• Island
Formation
Quebec & Maritimes
– Natural Sites –
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Quebec
•St. Lawrence River•Chute de la Montmorency
QUEBEC AREA
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• St. Lawrence River is 750 miles long from outlet of Lake Ontario
• St. Lawrence River is 1,900 miles (82% of MS) from it’s headwaters in Minnesota.
• Watershed drainage is 519,000 sq miles (42% MS)
• River is freshwater till Quebec where it turns tidal
• St. Lawrence River is in an ACTIVE fault zone, part of an ancient rift system ancient rift system !
750 mi
1,900 miles
ST. LAWRENCE RIVER SYSTEM
Quebec
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ST. LAWRENCE RIVER SYSTEM
RIFT SYSTEM?!!WHAT’S A RIFT
SYSTEM?““A large area of the earth A large area of the earth
in which in which plates of the plates of the earth's crust are moving earth's crust are moving away from each otheraway from each other, , forming an extensive forming an extensive
system of fractures and system of fractures and faults.”faults.”
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This is a rift system or rift
zone
ST. LAWRENCE RIVER SYSTEM
The plates are moving apart
REMEMBER THIS SLIDE?
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Let’s look at a BIG picture…
ST. LAWRENCE RIVER SYSTEM
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650 MYBP650 MYBP
540 MYBP540 MYBP
CAMBRIAN & ORDOVICIAN PERIODS
Specifically, lets Specifically, lets look at the time look at the time periods of the periods of the PRECAMBRIANPRECAMBRIAN650 mybp thru 650 mybp thru
540 mybp540 mybp
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Let’s focus just on our “neck o’the woods”
Future Rift Zone
Proto-NorthAmericanContinent
Two Continents tore Two Continents tore apart apart a RIFT zone a RIFT zone
Now, let’s see what that left behind…
580560540
RIFT FORMATION - 570 MYBP
600 Million Years Ago (Ma), continents were arranged on the
planet like this…
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USA
CANADA
ST. LAWRENCE RIVER SYSTEM
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CANADA
St Lawrence Rift System
ST. LAWRENCE RIVER SYSTEM
Areas above and below
this line are trying to
split apart
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630 mile long ACTIVE
fault!
CANADAOttawa –Bonnechere
Graben St Lawrence Rift System
Saquenay Graben
Let’s, look at a cross section of a Graben
ST. LAWRENCE RIVER SYSTEM
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ST. LAWRENCE RIVER SYSTEM
WHAT’S A GRABEN?
• As two sides of a fault zone pull apart (red arrows)
• Fractures occur in the rock (faults)
• Sections of rock drop
• Dropped sections are called Grabens
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½ Graben
Ottawa –Bonnechere
GrabenSt Lawrence
Rift System
Saquenay Graben
ST. LAWRENCE RIVER SYSTEM
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Iapet
an Rift
ed M
argin
Iapet
an Rift
ed M
argin
“Aulacogen” – “scar or zone of weakness”
New MadridSeismic Zone
(Reelfoot Rift)Ramapo Fault
St. LawrenceRift System
ST. LAWRENCE RIVER SYSTEM
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QUEBEC AREA NATURAL SITES
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Quebec•St. Lawrence River•Chute de la Montmorency
QUEBEC AREA NATURAL SITES
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Canadian Shield
Face of Horst
Appalachian Sediments fill this ½ Graben
QUEBEC AREA NATURAL SITES
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QUEBEC AREA NATURAL SITES
• 275 ft high (98’ higher than Niagra Falls!)• 150 ft wide
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QUEBEC AREA NATURAL SITES
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PEI• Island stats• Island Formation
PRINCE EDWARD ISLAND (PEI)
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PRINCE EDWARD ISLAND (PEI)• Island is 140 miles long by
20 miles wide in Gulf of St. Lawrence
• Located 9 miles off the mainland; across Northumberland Strait
• 104th largest island in the world and 23rd largest in Canada
• Formerly Sedimentary basin of red sandstone/mudstone & formed by glaciers
• Island rose after weight of glaciers removed; high point is 450 ft
140 mi long
20 mi wide
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Prince Edward Island was a big surprise…
• Rolling hills of green pasture lands• Tranquil bays/inlets• Bed & Breakfasts
everywhere (“No vacancies”)• Lots and lots of “crafts”• Very relaxing setting
PRINCE EDWARD ISLAND (PEI)
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PRINCE EDWARD ISLAND (PEI)
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New Brunswick•Bay of Fundy•Hopewell Rocks•Reversing Rapids
NEW BRUNSWICK
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BAY OF FUNDY OVERVIEW
USA
CANADA
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BAY OF FUNDY OVERVIEW
USA
CANADA
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BAY OF FUNDY OVERVIEW
USA
CANADA
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BAY OF FUNDY OVERVIEW
USA
CANADA
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BAY OF FUNDY OVERVIEW
NEW BRUNSWICK
NOVA SCOTIABay ofFundy
Chignecto
Bay
Minas Basin
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BAY OF FUNDY OVERVIEW
Chignecto Bay
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BAY OF FUNDY OVERVIEW
130 mi long
30 mi wide
• Bay of Fundy is 130 miles long by 30 miles wide
• Tides here are Semi-diurnal (2 times a day)
•Hence, 4 times a day, 14 BILLION tonnes of seawater rushes in or out
• Translates to 78 billion cu ft per hour
• Equivalent to the flow of 31 Mississippi Rivers EACH TIME!
1 2
Turn down that
faucet!
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BAY OF FUNDY OVERVIEW• Bay of Fundy is funneled
shaped causing extra high tides at end of bay
• Highest tide is in the Minas Basin at 52 feet!
• Giant whirpools form in the bay during tidal flow
• Energy of the tidal inflow is said to be equal to 8,000 locomotives
• Only 1 tidal pilot power plant captures any of this energy at Annapolis, NS
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ANNAPOLIS TIDAL PWR PLANT•20 MW plant (3rd
largest); startup 1984
•one of 7 tidal power plants in the world. (Korea w/254 MW, France w/240 MW, plus small ones in China, Russia, UK)
• located on a small island at mouth of the Annapolis River
• feeds the grid every 12 hours and 25 minutes.
•on 5 hours, off 7 hours, generating enough power to run about 4,000 homes
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WHAT ARE TIDES?
• Tides are the rise and fall of sea levels caused by the combined effects of the gravitational forces exerted by the Moon and the Sun and the rotation of the Earth.
• Spring Tides occur when the pull of the sun and moon on earth are in alignment
• Neap Tides occur when the sun pull is at right angles to that of the moon
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TIDAL EFFECTS
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1. Formation of rift valley about 350 million years ago.2. Flooding of valley by warm shallow sea.3. Erosion of mountains and formation of Hopewell conglomerate 330 million years ago.
4. Sandstone bearing fossils deposited in Coal Age swamps, 315 million years ago.
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5. Warping of land by pressure, eruption of volcanoes, 210 million years ago
6. Tilting of land and changing of drainage, 15 million years ago.
7. Glacial covering of land, one million years ago.8. The Bay of Fundy today
BAY OF FUNDY BAY OF FUNDY FORMATIONFORMATION
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NEW BRUNSWICK
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New Brunswick•Bay of Fundy•Hopewell Rocks•Reversing Rapids
NEW BRUNSWICK
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HOPEWELL ROCKS, NB
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HOPEWELL ROCKS, NB
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HOPEWELL ROCKS, NB1. Water (rain or snow)
finds its way into cracks and crevices of cliff
2. Cycles of freezing temps expands water, widening the crack; rainfall erodes crack
3. Tides and wave action erode base of cliffside
4. Section of cliff is gradually separated from mainland
5. “Flowerpot” is formed
“FLOWERPOT” FORMATION
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HOPEWELL ROCKS, NB
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NEW BRUNSWICK
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New Brunswick•Bay of Fundy•Hopewell Rocks•Reversing Rapids
NEW BRUNSWICK
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REVERSING FALLS, ST. JOHN, NB
NEW BRUNSWICK
NOVA SCOTIA
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St. John’s River
?
To Ocean
Retreating Glacier
REVERSING FALLS, ST. JOHN, NB
1. This is how St. John, 1. This is how St. John, NB looks today…NB looks today…
2. BUT…20,000 yrs ago, 2. BUT…20,000 yrs ago, the river drainage the river drainage
might have taken this might have taken this pathpath
3. Advancing glaciers 3. Advancing glaciers left sustantial left sustantial amounts of till amounts of till
material, blocking this material, blocking this routeroute
4. Once glaciers 4. Once glaciers retreated, the old retreated, the old
path to the ocean was path to the ocean was filled infilled in
5. Once glaciers 5. Once glaciers retreated, ocean retreated, ocean
levels rose and river levels rose and river cut a new path to the cut a new path to the
oceanocean
6. Twice a day, tidal 6. Twice a day, tidal waters flow up the St. waters flow up the St.
John River creating John River creating “Reversing Rapids”“Reversing Rapids”51
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St. John River cut this small gorge as a new path to the ocean
Falling tide, river flows to the right (east) to the
ocean
St. John, NB
On rising tide, St. John River reverses,
flowing to west
REVERSING FALLS, ST. JOHN, NB
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NEW BRUNSWICK
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Nova Scotia•Truro Tidal Bore•Joggins Fossil Cliffs
NOVA SCOTIA
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SALMON RIVER TIDAL BORE, TRURO, NB
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http://www.youtube.com/watch?v=MA39OxExc58
SALMON RIVER TIDAL BORE, TRURO, NB
http://www.youtube.com/watch?
NR=1&feature=fvwp&v=rQQUtouNMjU
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NOVA SCOTIA
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Nova Scotia•Truro Tidal Bore•Joggins Fossil Cliffs
NOVA SCOTIA
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JOGGINS FOSSIL CLIFFS
Chignecto Bay
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JOGGINS FOSSIL CLIFFS
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JOGGINS FOSSIL CLIFFS
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“COAL AGE”
This time, lets look This time, lets look at the time at the time
period of the period of the
CARBONIFEROUSCARBONIFEROUSPERIODPERIOD
350 mybp thru 350 mybp thru 300 mybp300 mybp
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JOGGINS FOSSIL CLIFFS
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JOGGINS FOSSIL CLIFFS
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JOGGINS FOSSIL CLIFFS
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Quebec & the Maritimes – Part 1
NOVA SCOTIA
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WHAT HAVE WE REVIEWED?WHAT HAVE WE REVIEWED?WHAT HAVE WE REVIEWED?WHAT HAVE WE REVIEWED?
Quebec & the Maritimes – Part 1
• Identified several important natural sites Identified several important natural sites in Quebec and the Maritimes’in Quebec and the Maritimes’
• St Lawrence River is in a _____System; St Lawrence River is in a _____System; formed ____myaformed ____mya
• Montmorency Waterfall falls from a______ to Montmorency Waterfall falls from a______ to a _______ a _______
• Tidal flow in/out of Bay of Fundy is equal to Tidal flow in/out of Bay of Fundy is equal to ___ Mississippi Rivers___ Mississippi Rivers
• Hopewell Rocks formed because of Hopewell Rocks formed because of __________ & ________________ & ______
• Reversing Rapids are in what town? Reversing Rapids are in what town? ______________________
• Joggins Fossil Cliffs are from the Joggins Fossil Cliffs are from the ____________ Period____________ Period
Rift
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540
Horst
½ Graben
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Weathering
Erosion
St. John, NB
Carboniferous
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REMEMBER…REMEMBER…
GEOLOGY ROCKSGEOLOGY ROCKS
THANK YOU!
THANK YOU!
THANK YOU!
THANK YOU!71
Quebec & the Maritimes – Part 1
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From DK China 2005
Next Week – Session 5
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- - The The Appalachians -Appalachians -
QUEBEC & QUEBEC & MARITIMESMARITIMES
Part 2:Part 2:- Statistics, Travel, - Statistics, Travel,
People -People -
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http://en.wikipedia.org/wiki/Sudbury_crater http://en.wikipedia.org/wiki/Earth_Impact_Database http://upload.wikimedia.org/wikipedia/commons/e/ef/Collision_d%27une_com%C3%A8te.jpg http://ottawa-rasc.ca/wiki/index.php?title=Odale-Articles-Sudbury http://ottawa-rasc.ca/wiki/images/0/09/Odale-sudbury-03a_geologic_schematic.gif http://ottawa-rasc.ca/wiki/images/5/52/Odale-sudbury-03_mungal_geology.jpg http://ottawa-rasc.ca/wiki/images/3/36/Odale-sudbury-01_multi_ring.jpg http://www.youtube.com/watch?v=yRbvvzK-ll0&feature=relatedhttp://www.youtube.com/watch?v=ZL3sq4QlKAc&NR=1 http://www.youtube.com/watch?v=9s_mLmhykQg http://www.youtube.com/watch?v=m5TwT69i1lU&feature=related http://www.youtube.com/watch?v=MA39OxExc58 http://www.palliserrestaurantmotelandgifts.ca/ http://www.youtube.com/watch?NR=1&feature=fvwp&v=rQQUtouNMjU http://www.agu.org/pubs/crossref/2000/1999RG900016.shtml http://engsales.yonhapnews.co.kr/YNA/ContentsSales/EngSales/YISW_PopupPhotoPreview.aspx?CID=PYH20110411088100341 http://www.fedpubs.com/charts/fundy.htmhttp://www.britannica.com/EBchecked/topic/73998/tidal-borehttp://www.siam.org/students/siuro/vol1issue1/S01006.pdf http://www.nspower.ca/en/home/environment/renewableenergy/tidal/annapolis.aspx http://en.wikipedia.org/wiki/Eastern_North_America_Rift_Basins http://www.gnb.ca/0078/minerals/GSB_Surficial_Mapping-e.aspx
REFERENCESREFERENCEShttp://www.worldheritagesite.org/sites/joggings.htmlhttp://pemsea.org/eascongress/international-conference/presentation_t4-1_kim.pdfhttp://ianjuby.org/rock_solid_13.html http://museum.gov.ns.ca/fossils/sites/joggins/index.htm http://bayoffundy.com/about/geology/ http://en.wikipedia.org/wiki/Tides http://en.wikipedia.org/wiki/Tidal_power http://www.renewableenergyworld.com/rea/news/article/2004/11/china-endorses-300-mw-ocean-energy-project-17685 http://en.wikipedia.org/wiki/Saint_Lawrence_rift_system http://en.wikipedia.org/wiki/St_Lawrence_River http://dsp-psd.pwgsc.gc.ca/Collection/M44-2001-D15E.pdfhttp://ottawa-rasc.ca/wiki/index.php?title=Odale-Articles-Carlevoix http://www.thelivingmoon.com/43ancients/02files/Earth_Images_09.html#Charlevoixhttp://www.newworldencyclopedia.org/entry/Saint_Lawrence_River http://en.wikipedia.org/wiki/Graben http://en.wikipedia.org/wiki/New_Madrid_Seismic_Zonehttp://www.pc.gc.ca/apprendre-learn/prof/sub/eco/itm5/fi-lr1/pei-ipe_E.asp http://en.wikipedia.org/wiki/Prince_Edward_Island http://www.ec.gc.ca/default.asp?lang=En&n=ECD35C36 http://bayoffundy.com/about/highest-tides/ http://en.wikipedia.org/wiki/Rance_Tidal_Power_Stationhttp://www.nspower.ca/en/home/environment/renewableenergy/tidal/annapolis.aspx http://www.geoprisms.org/enam.html
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All class materials either is or
will be on 1) the University’s website
and on
2) Don’s Website at:
www.donbeaumont.weebly.com
QUEBEC & THE MARITIMES – QUEBEC & THE MARITIMES – Part Part 11
ANY QUESTIONS??74
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