I evaluated fire occurrence, growth and recruitment and determined the fire history of 21 old and 20 young 8ha stands in Cascade, Siskiyou and mid-Coast mixed conifer and evergreen forests in southwestern Oregon. The rates and patterns of growth were measured and analyzed on 1,079 old-growth and 2,111
young stand...
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effort and manuscript is dedicated in honor of my loving parents
Robert Charles Sensenig and Pearl W
The middle Eocene Tillamook Volcanics form the oldest rock unit in the Elsie-lower Nehalem River area. K-Ar age determinations and age constraints imposed by foraminiferal and calcareous nannofossil assemblages of overlying sedimentary strata indicate an absolute age of about 42 Ma for the uppermost Tillamook Volcanics. Major oxide values indicate...
This is an integrated assessment across terrestrial, freshwater, and coastal marine realms. It includes the coast range of Oregon and Washington as well as Vancouver Island in British Columbia. The marine portion only includes the coastline and shallow subtidal; the next iteration will include the offshore component.
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) – wildlife; Rachel
Neugarten (TNC), Melissa Roy-Hart (TNC), Karen Mallin and Susan Healy – report
The middle to upper Eocene Tillamook Volcanics form the basement in the Rock
Creek - Rocky Point area. These tholeiitic to alkalic basalts, basaltic andesites, and
andesites were erupted as shield volcanoes seaward of the strandline ontop of an older
deep-marine mudstone unit (Yamhill Formation) and an accreted portion of...
Fault zones are potential paths for release of radioactive nuclides from radioactive-waste
repositories in granitic rock. This research considers detailed maps of en echelon fault zones
at two sites in southern Sweden, as a basis for analyses of how their internal geometry can
influence groundwater flow and transport of radioactive...
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Radionuclide Transport in Fault Zones in Granitic Rock
Abstract approved:
Roy D. Haggerty
Fault zones are
Douglas-fir (Pseudotsuga menziesii) has a wide distribution in North America and is one of the
tree species most widely distributed outside its natural range. The species has been introduced to
Europe, New Zealand, South America, and elsewhere around the world. At present, Douglas-fir
is an accepted and integral part of...
The middle Eocene Tillamook Volcanics form the oldest rock unit in the Elsie-lower Nehalem River area. K-Ar age determinations and age constraints imposed by foraminiferal and calcareous nannofossil assemblages of overlying sedimentary strata indicate an absolute age of about 42 Ma for the uppermost Tillamook Volcanics. Major oxide values indicate...