Quimper Geological Society has guest speaker

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The Quimper Geological Society will host Erin Donaghy next week for the presentation “Hit and run of an Eocene oceanic plateau in the PNW, stratigraphy of the Eocene to Miocene sedimentary peripheral rocks on the Olympic Peninsula.”

The group will meet at 4 p.m. Saturday, Oct. 15 on Zoom.

Donaghy is a doctorate’s candidate at Purdue University and will present the most recent geologic data related to the Eocene (56-34 Ma) rocks of the northern Olympic Peninsula. She will discuss the docking of the oceanic plateau, fondly known as Siletzia, to the West Coast of North America and the subsequent origin of the siltstone and sandstone formations. 

Additionally, Donaghy will provide a compelling argument for the regional significance of the marginal rifting and how these local rocks may relate to the northward translation of the Yakutat terrane in Alaska. 

Register for the Zoom presentation and ask questions at quimpergeology.org.