Kanguk Peninsula field area.Personal photo:Why do people put these things on home pages?
Materials on this page are (c) 1994 unless otherwise noted. Please contact the author for distribution details. There probably will not be a problem anyway, but please ask.
Palynology and sequence stratigraphy of Late Albian (latest Early Cretaceous) sediments and volcanics, Axel Heiberg Island, Canadian Arctic.
Successfully defended December 4, 1996.
This page will soon be moving. I am not sure where, but it will be somewhere in Nova Scotia (.ns.ca), the location of my new, temporary job as a visiting fellow at GSC Atlantic. I will add a pointer to the new page when I have a URL. Not everything will be moving, so get it while you can.
View looking west towards Twin Diapirs (Carboniferous-Permian evaporite diapirs) in the forground, and Split Mountain (to the right) on Kanguk Peninsula, western Axel Heiberg Island, Canadian Arctic. The youngest units visible are the black basalt flows of the Strand Fiord Formation, capping cliffs over 800 metres tall on Split Mountain, about 6km away. These are underlain (in order) by thin black shales of the Bastion Ridge Formation (marine), the Hassel Formation (sandstone, nearshore marine) and Christopher Formation (shale, shelf marine), all Cretaceous in age, and the subjects of the study. In the foreground, around the orange-yellow diapirs, some of the sandstone of the Isachsen Formation is visible. The orange-yellow colour of the diapirs is caused by oxidation of sulphide minerals associated with the diapirs.
The diapirs have pushed up the "layercake" stratigraphy into a broad dome that has been differentially eroded over the top of the diapirs. The margin of the domed structure can still be seen in the distance by following the level of the basalts across the photo.
Strand Fiord is visible on the left, and still has some sea ice present. July 13, 1990 (no, I haven't been working on my thesis for *that* long! :-))
79 degrees, 14' N, 91 degrees, 30' W.
Nyktericysta davisii Bint 1986
Limbicysta octopediformis sp. nov. [NOTE: The citations on this page
are NOT to be considered effective publication of a new species!!]
This project was the subject of a presentation at the 1995 GAC/MAC
conference in Victoria, B.C. in May. The abstract is
Here.
(in collaboration with Rob Fensome and Graham Williams, AGC, Dartmouth, Nova Scotia)
Diversity of dinoflagellate species from Triassic to Quaternary. A: Total number of species per time interval; B: Grouped by family (According to classification of Fensome et al., 1994)
This data is discussed in Fensome et al., 1996 (in press) and MacRae et al., 1996a (in press). See the publications page for citations.
(in collaboration with Charles Henderson )
3-dimensional model of a condont apparatus ("Scottognathus" Rhodes). Perspective projection, stereo pair. This is an early version - the S elements are too widely spread out, and too thick, and the M elements are close to parallel with the other ramiform elements. The apparatus is about 3-4 millimetres long (the scale, in millimetres, is just visible behind). These images were composed using Renderman on a NeXT workstation.
This is a later version, with thinner elements, more closely spaced together ramiform elements, and M elements "tilted" to a higher angle (to reflect what is observed in the bedding-plane assemblages). This version is an orthographic projection with a rectangular prism to help perceive the orientation. Anterior is towards the right, posterior to the left.
A comparison of a bedding-plane assemblage and the 3D apparatus models.
"Old model" refers to the initial version, which more closely follows
Aldridge et al. 1987, and "new model" refers to the modified version in this
study. Note the correct prediction of the distal portion of the M
elements projecting posteriorly in the "new model" versus the "old model". A
higher-resolution image is available upon request.
(The bedding plane assemblage photograph is from Aldridge et al., 1987).
New!
UGLY, but interactive VRML conodont model 208Kbytes, also available as
a 18Kbyte gzipped file.
VRML browsers are available for several platforms, including PC, Mac, and various UNIX platforms.
(in collaboration with Russel Hall rhall@geo.ucalgary.ca)
Periechochrinus schultzianus (Anglin, 1878) - fossil crinoid crown.
This project was the subject of a presentation at the 1995 GAC/MAC conference in Victoria, B.C. in May. The abstract is Here
Providing stratigraphic/sedimentological context for a project by Chris Collom, mainly on Santonian-Campanian inoceramids and other bivalves. For example:
A LARGE Sphenoceramus clam,
affectionately known as "Svenn". If complete, it is estimated this
specimen would be about 1 metre long!
(This specimen was collected by Len Hills and Koldo Nunez-Betelu)
If you know of any jobs in paleontology, sedimentary geology, or computer applications in geology becoming available in 1995-1996, please contact me via e-mail.
"Recycle", 
"Earth and Moon"
This list is getting too unwieldy and will soon be pushed to a separate page.
Albertosaurus -- 191Kb
Photo of a full-size Albertosaurus reconstruction by Brian Cooley, on
display outside the
Royal Tyrrell Museum of Paleontology NEW LOCATION!,
Drumheller, Alberta, Canada. Photo by Chris Collom (collom@geo.ucalgary.ca).
Contact the museum for information about the display.
Definitely worth a visit!!
The Lurker's Guide to Babylon 5 Everything you might want to know about the science fiction television show "Babylon 5". Includes episode synopses and the current episode schedule.
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