Geology Reference
In-Depth Information
Willamette Valley and coastline as Tertiary, some 25 pages of text provide a summary of Oregon s
Cretaceous rocks in the Klamaths and southeastern geologic history.
Oregon, and the remainder of Oregon (Coast Range, Diller's record was nearly matched by that of
eastern Oregon, Klamaths) as "Eozoic", that is preSilu- Edward Drinker Cope, vertebrate paleontologist, whose
rian. From the 1850's to after 1870, the first regional work focused on the John Day and Great Basin re-
geologic maps of the Pacific states included only areas gions. "The Silver Lake of Oregon" (1889) and "The
of California and a number of profiles of Vancouver Vertebrata of the Tertiary Formations of the West"
Island. (1883) were produced by Cope who often collected
Most of the early maps that even featured fossils under difficult conditions. At one point Cope
Oregon were concerned with the Coast Range only. was conducting his field work with a team of four
Ellen Condon
McCornack's A Student's Geological Map
mules and a wagon and was reduced to eating bacon,
of Oregon with Notes
in 1906 is the first complete
stewed tomatoes, and crumbled biscuits, even feasting
geologic map where Oregon is not part of a larger
on cold canned tomatoes for breakfast,
geographic unit. On this map the geology, from preCr-
Once again, an overview of Oregon geology
etaceous through Pleistocene, is not colored but is
was synthesized this time by two geologists, Warren
depicted by symbols. In drawing up the map, McCor-
Dupre Smith, a field geologist, and Earl L. Packard, a
nack
"tried to gather knowledge from all available
paleontologist, at the University of Oregon. "The
sources,"
at that time relying on publications by Con-
Salient Features of the Geology of Oregon" in 1919
don, Diller, Lindgren, and Russell. The accompanying
was issued as an article in the Journal of Geology and
A map of the Great Basin by I.C. Russell, 1884.
