Nova Scotia, 1990
Carboniferous Geology and Paleontology
Copyrighted by Don Chesnut, 2004 (except
for maps)
Steve Greb, Allen Archer, Eric Kvale and I were invited by the coal geologists
of the Nova Scotia geological survey (their equivalent) to spend several
weeks exploring their coal-bearing rocks. Steve and I drove up from Lexington,
Kentucky and met Eric and Al there. It took us three days of driving to get
there and three days back. The entire trip was about three weeks long for
us. The Nova Scotian geologists were very generous, friendly; and quite
knowledgeable about sedimentary environments. We learned quite a bit. We
are forever grateful to our NS colleagues for this great experience.
Our first stops were coal-bearing rocks of the Stellarton Basin (see
map). I don't have any pictures because it was
a little too dark for my film. This is a classic pull-apart, slip-strike
basin.
The next day we headed to Cape Breton Island and spent several days exploring
the coastal exposures along the western part of the island (see
map).
Cape Linzee, Port Hood
Finlay Point
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Finlay Point, maroon rock to left is Pictou Group
sandstone, shale and coal, then there is a fault against maroon Pictou
conglomerate and sandstone. There is yet another fault contact against the
white gypsum of the Windsor Group; underlain by a covered sequence of limestones
and shales of the Windsor Group
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another view of the point
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yet another view
Coal Mine Point
Margaree Harbour
Then we left the west coast of the island and headed east.
Great Bras D'Or channel and Bird Island boat tour
Then we headed north toward Sydney (see map).
Black Rock Point to Table Head section
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Black Rock Point, lighthouse, Boularderie Island
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Sydney Mines Formation, Morien Group
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Black Rock channel deposit?, Eric Kvale, p. 8?
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vertical tree, Sydney Mines Formation, Steve Greb
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crenulated laminations, could be cyclical rhythmites,
Sydney Mines Formation
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Sydney Mines Fm., John Calder on right
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scour feature, same formation, Martin Gibling in
red hat
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view from section, low tide
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scour and accretion? beds, same formation
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vertical trees, fossil forest section, same formation
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view of section from the top of Table Head
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top of Table Head
Waddens Cove
Glace Bay?
Around Sydney
Then we left Cape Breton Island back to the main part of Nova Scotia, where
we stayed at the Amherst Shore Country Inn, on the shore of Northumberland
Strait. We stayed several night there. Charming place. You'll like it.
We spent several days studying the Cumberland Basin at Joggins (see
map).
Joggins section
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Don Reid's fossil museum
[external links about Don Reid
http://museum.gov.ns.ca/fossils/finders/reid.htm and his fossil center
http://www.nsaccess.ns.ca/Capsites/RiverHebertCAP/jcenter.htm ]
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beach at Joggins, view from top
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looking south from Joggins, 40 km of exposures
of Pennsylvanian strata
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Joggins section from the beach, Joggins Formation,
Cumberland Group
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starting point
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Diplichnites track by a giant
Arthropleura millipede, Joggins Formation between Kimberley seam and
Queen seam?
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another Diplichnites trackway
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same view
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Joggins, looking north
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transported rock?, don't remember what this is
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rain-drop impressions? (or load molds, or eroded
clay clasts from matrix?)
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reefs between Hardscrabble Point and Fundy seam
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same exposures, Steve Greb in red lobster hat
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same exposures, dark band (where Steve is) is bivalve
limestone
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modern, rippled tidal deposits between reefs
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same rippled deposits
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more rippled tidal deposits, modern
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modern deposits, flat-topped ripples
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same flat-topped ripples
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Joggins section
Lower Cove section at Joggins
MacCarrons River to Ragged Reef Point section at Joggins
Maccan River and modern tidal deposits
After leaving Amherst Shore Inn, we went to Rob Naylor's family cottage.
This has special significance for me. My wife tracked us down and called
me here. I learned that she was pregnant with my daughter Nora. Hey Rob,
I'll never forget it, thank you. Now, whenever I see a Puffin, I think of
my little Nora.
Naylor Cottage and beach
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beach at Naylor Cottage, lupines?
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typical mollusks, beach at Naylor Cottage, low
diversity
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another view of the same
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sand bars at lowing tide
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washed-out ripples
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vertical burrows by razor clams
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froth marks and flat-topped ripples
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emergent bar at low tide
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ripples on bar
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horizontal trace by gastropod, perpendicular to
ripples, water covered
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ladder-back ripples
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long, parallel ripples on sand bar
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ladder-back ripples
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two sets of ripples, partially washed out
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long parallel ripples
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two sets of ripples
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three sets of ripples, look carefully
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razor clam burrow and "raindrop" impressions created
by the razor clam
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two sets of waves that produce the two sets of
ripples
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two sets of waves
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jellyfish
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seaweed drag marks
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double-crested ripples
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double-crested ripples
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modern, vertical Skolithos-type worm tubes
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Skolithos-type worm tubes dug out of sand
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same worm tubes
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pseudo-trace fossil, pseudo-Rhizocorallium
[If you can't tell, this was man-made.]
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sunset near Naylor Cottage
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scene near Naylor Cottage
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same view
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old barn near Naylor Cottage
Hidden Falls
Five Islands
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Five Islands, in Minas Basin (Basin here means
Bay, not a geologic basin)
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same islands, made up of North Mountain Formation,
Triassic-Jurassic basalt, foreground is McCoy Brook Formation (Jurassic)
red sandstone, siltstone and conglomerates; dinosaurs have been found in
this formation
Shubenaeadie River
a feast at the Calder's
Thanks Jane and John.
The next day, Steve and I visited Halifax, the geological survey and a museum.
The we drove down to Peggy's Cove to examine the famous granite outcrops
and scenery.
Peggy's Cove
Steve and I decided to take the ferry to Maine. It took a day, same as driving,
but it was a lot easier. I couldn't get over all the gambling on the ferry
though. I read Steve Gould's book "Wonderful Life" about Cambrian life. Lot
better than gambling.
Yarmouth and the ferry to Maine