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To Go Boldly Where Few Have Gone Before: Exploring the Seafloor of Planet Earth

When
26 Jan 2027
5:30 PM
Location
Online and in-person at Worthy Brewing

To Go Boldly Where Few Have Gone Before: Exploring the Seafloor of Planet Earth

Michael J. Cheadle

A Brit; BS & PhD from the UK, MS from the USA- Taught 10 years at University of Liverpool, UK and 24 years at the University of Wyoming.

More than 70% of the Earth's seafloor remains unexplored and unmeasured by direct, bathymetric surveys; in fact we know more about the topography of the far side of the Moon and Mars than we do about~ 50% of the Earth’s surface. Consequently, seafloor exploration has led to spectacular geologic discoveries in recent times, with likely more exciting finds still to come. During this talk we’ll re-visit some of those discoveries: the largest offset (normal) faults in the world; hydrothermal vents and their exotic chemosynthetic lifeforms (analogs of the origin of life?); the competition between tectonics and magmatism at mid-ocean ridges and the nature of ocean crust itself-especially the poorly explored lower oceanic crust that lies below the ubiquitous basalt carapace in the Pacific. The talk will also cover the basic principles that govern how mid-ocean ridges work, including the exhumation of vast tracts of the Earth’s mantle.

Please join us at:

Worthy Brewing (eastside location)

495 NE Bellevue Drive, Bend

In the Hop Mahal Room

5:30 pm social hour

7:00 pm presentation

COGS talk are free and open to the public -- all are welcome! Please join us for the social hour before the presentation.

All presentations are also live-streamed through Zoom. There will be a registration link at the top of this page as we get closer to the date of this presentation.

Central Oregon Geoscience Society

Email: COGeoSoc@gmail.com
P.O. Box 2154, Bend, Oregon 97709