LARMOR LECTURE - Why the Ancient Continents are special: a geological detective story
Mon 8 October 2018
Department of Chemistry
The Larmor Lecture by Professor James Jackson FRS, Professor of Active Tectonics, Department of Earth Sciences
The first talk in a series of lectures organised by the Cambridge Philosophical Society in the Michaelmas Term 2018.
Abstract: This talk will illustrate a common story in Earth Sciences: how pursuit of an interesting observation that we think is a clue to one phenomenon actually leads to a chain of other observations and investigations that solve a different problem altogether. In this case, asking questions about the depths of earthquakes in the continents triggered a series of other studies clarifying an age-old geological mystery: what is the origin of the interiors of the great continents, which are composed of generally flat, ancient rocks that have remained unaltered for billions of years, while mountains and oceans form on their margins? The answer probably has immense economic significance, but that is not why these studies originated, nor could that outcome have been foreseen: yet it is a common story in Earth Sciences and one that should cause those who think science can be directed towards desirable economic, social or innovative outcomes pause for thought. Much of our modern understanding of how the Earth works originated in this way.
Cost: Free
Enquiries and booking
No need to book.
Open to all who are interested, no booking required. Entrance is free to all our Cambridge Philosophical Society Lectures. For further information please contact the Executive Secretary or visit the Society's website
Enquiries: Beverley Larner Website Email: philosoc@hermes.cam.ac.uk Telephone: 01223 334743