Earth Sciences 4450Y: Regional Field Geology
Location: Nova Scotia and New Brunswick
Instructor: Guy Plint
This course is held in early September each year. In Maritime Canada, the trip encompasses the Opening of Iapetus Ocean, represented by the passive margin succession of the Meguma Group, and including various volcanic island arc volcano-sedimentary successions. The Acadian Orogeny is represented by major granite plutons (South Mountain Batholith) and attendant thermal metamorphic aureole. A post-orogenic Mississippian strike-slip basin is represented by evaporites and limestones of the Windsor Group, and by lacustrine deposits of the Horton Group. A Pennsylvanian strike-slip basin is represented by the Boss Point and Joggins formations. Late Triassic Rift basins related to early Atlantic opening are represented by playa-lacustrine-braided river deposits of the Wolfville and Blomidon formations. Triassic axial and marginal alluvial fan systems are also seen in New Brunswick in the context of complex compressive-extensional fault reactivation and unconformity development near St. Martins. Earliest Jurassic rift-related basaltic vulcanism is represented by several hundred metres of stacked lava flows of the North Mountain Basalt, see north of Wolfville N.S. and at Five Islands, N.S. The Minas Geofracture (plate-scale strike-slip fault zone) that separates the N American (Avalon Terrane) from Gondwana (Meguma Terrane) is seen near Parrsboro N.S., including exotic mega-blocks of deep crustal rocks. The effects of strike-slip transpression are also seen in paleo-earthquake features in Pennsylvanian strata and in an inverted stratigraphic succession seen in a flower structure near Saint John N.B., and in recumbent folds and thrusts near Tynemouth Creek, N.B. Precambrian gneissic basement underlying Cambrian sediments are seen in Saint John. Every stop (about 25 in total) involves observation and description of the rocks on hand, followed by local and ‘big-picture’ interpretations. Local mapping exercises are conducted in at least three localities, involving structural/sedimentary relationships, graphic logging and intrusive-host rock mapping.
Click here to view the course syllabus
*Cross-listed as graduate course GEOL 9601Y
Fees and Registration:
Trip dates are September 1-10, 2018
- All interested in attending give their name to Amy Wickham (firstname.lastname@example.org) no later than April 30th 2018.
- A supplementary fee ($650 in 2017, subject to change), is payable (as a sign of commitment!) to Amy Wickham by May 30th 2018. Non payment of this fee by the deadline will result in your removal from the participant list.
*In short, a good background in Plate tectonics (ES2200) sedimentology and stratigraphy (ES 2260, 3314), igneous petrology (ES3313a), structural geology (ES2201), and preferably metamorphic petrology (ES3315) allow participants to take full advantage of the learning opportunities presentd by this trip.