A recording of a lecture given by Tony prave to the Geological Society of Glasgow on 9 November 2023.
The most enduring concept of the Dalradian Supergroup is that it formed during a prolonged phase of extensional tectonism, starting with breakup of the supercontinent Rodinia and ending with opening of the Iapetus Ocean. This evening Tony will revise and refine that concept, integrating the Dalradian’s rock record into the geological and environmental conditions recognised currently as those that define the latter half of Neoproterozoic time worldwide.
Although polyphase deformed and metamorphosed, the Dalradian Supergroup nonetheless contains a rich record of Neoproterozoic Earth history. During the past several decades, researchers have begun reconstructing that history by differentiating deformational features from those that inform on original depositional frameworks. This talk will present the latest such findings and ideas about the Dalradian and how they are revising and refining understanding about the timing of its formation and evidence for breakup of the supercontinent Rodinia and opening of the Iapetus Ocean.
