Lecture: Geological evolution of N American cordillera
Speaker:
Entry Fee
Members: Free
Visitors: £5.00
Date and Time
19:30 -
Location
Bath Royal Literary and Scientific Institution, 16-18 Queen Square, Bath BA1 2HN
Lecture Description
The North American Cordilleran mountain chain runs N-S along western North America, and reaches up to ~ 500 km in width. The chain consists of a number of Mt ranges such as the Rocky Mountains and Coast Ranges, along with a variety of geological entities including the Basin and Range Province, Colorado plateau, Cascade volcanic arc, Columbia flood basalts and the Yellowstone plateau. These different regions record a remarkable geological evolution over a period greater than the entire Phanerozoic. This evolution records the change of the western coast from a passive margin, marking the breakup of the Rodinia supercontinent in the late Precambrian, to a active subducting margin culminating in the Larimide orogeny and the formation of the Cordilleran mountain belts. The Tertiary evolution marks the orogenic collapse phase, with the plate boundary between the Pacific and North American plates changing from a destructive margin to one involving the two transcurrent faults of the San Andreas and Queen Charlotte zones, separated by the remnant of the destructive margin that has given rise to the Cascades volcanic chain.
Attending via Zoom
This is a hybrid meeting: you can attend in person or join online via Zoom.
Bath Geological Society Members: Free of charge. Joining instructions and the Zoom link are sent to members by email prior to the lecture.
Visitors & Non-Members: (including members of the Geologists' Association and affiliated societies) Please book via Eventbrite to receive Zoom access (see the Entry Fee details above).
How to join: Click the Zoom link provided in your email or Eventbrite confirmation. You can join using the Zoom desktop or mobile app, or directly via your web browser without installing any software. The virtual waiting room opens approximately 15 minutes before the scheduled start time, and attendees will be admitted before the talk commences.
For any queries about joining online, please contact [email protected].