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Rowland Tabor — the author of Guide to the Geology of Olympic National Park, published in 1988, and Geology of Olympic National Park, published in 1975 — will give a presentation at 4 p.m. Saturday at Quimper Unitarian Universalist Fellowship, 2333 San Juan Ave., Port Townsend.
It is sponsored by the Jefferson Land Trust Geology Group.
The following day, , his presentation will be at
4 p.m. in Room M-125 in Keegan Hall at the Peninsula College Port Angeles campus at 1502 E. Lauridsen Blvd.
His Port Angeles presentation is free to the public, but a donation of $5 is appreciated.
It is co-sponsored by Peninsula College and the Coastal Watershed Institute.
Tabor, a retired United States Geological Survey scientist who lives in Menlo Park, Calif., will provide detailed information on the geology of the Olympic Mountains.
He will elaborate on the development of geologic ideas and outline some of the newer work by other scientists.
The Olympics are part of the Coast Ranges, mountains that extend along the West Coast of North America from Mexico to southern Canada.
Even though they are closely related in rock composition to the Coast Ranges of Oregon, they are separated from them by the broad lowland of the Chehalis River and are considerably higher and more rugged.
They also have some scenery in common with the Insular Ranges of Vancouver Island in Canada but geologically are quite different.
Some of the differences can be seen via a virtual field trip of the region at http://tinyurl.com/d2lr99u.
For more information, email Barbara Blackie at Peninsula College at firstname.lastname@example.org or Nicole Harris at the Coastal Watershed Institute at email@example.com.
For more information about the Port Townsend presentation, visit www.quimpergeology.org.