Index Catalog // ScholarsArchive@OSU

Scenic photos of the South Umpqua River at Tiller

Creator:: Partnership for the Umpqua Rivers
Abstract:: South Umpqua River photo
Resource Type:: Image

Stratigraphy and sedimentology of the middle eocene Cowlitz Formation and adjacent sedimentary and volcanic units in the Longview-Kelso area, southwest Washington

Creator:: McCutcheon, Mark S.
Abstract:: Geologic mapping of the Longview-Kelso area and the measurement and description of a composite 650-meter thick stratigraphic section of the Cowlitz Formation (Tc) in Coal Creek using bio-, magneto-, litho-, and sequence stratigraphy reveals a complex interplay of Cowlitz micaceous, lithic arkosic shelf to tidal/estuarine to delta plain facies associations,...
Resource Type:: Masters Thesis

Geology of the Clarno Formation in the vicinity of Stephenson Mountain, Jefferson, Crook and Wheeler counties, Oregon

Creator:: Stroh, Harold Raymond
Abstract:: The thesis area is located in north-central Oregon approximately 20 km west of the town of Mitchell. The rocks exposed in the area belong to the Clarno Formation. This study supports the informal reclassification of the Clarno to Group status, composed of an Upper and Lower Clarno Formation. An angular...
Resource Type:: Masters Thesis

Volcanic stratigraphy of the Deschutes Formation, Green Ridge to Fly Creek, north-central Oregon

Creator:: Conrey, Richard M.
Abstract:: About 225 lava flows and ash-flow tuffs of the Deschutes Formation (DF) were mapped at Green Ridge. The units fill east-trending paleovalleys which "sky-out" westward and dip east; the eastward dip of the units decreases as they are traced eastward. The source of the units was west of Green Ridge...
Resource Type:: Masters Thesis

Geology of the Fly Creek quadrangle and the north half of Round Butte Dam quadrangle, Oregon

Creator:: Hewitt, Samuel Loyd
Abstract:: A thick sequence of intercalated andesite and basalt flows, tuffs, and volcanic sediments crop out in the Fly Creek Quadrangle and the north half of the Round Butte Dam Quadrangle. This sequence was deposited in the ancestral Deschutes River Valley along the east flank of the Cascade Range during the...
Resource Type:: Masters Thesis

Development, fire history and current and past growth, of old-growth and young-growth forest stands in the Cascade, Siskiyou and mid-coast mountains of southwestern Oregon

Creator:: Sensenig, Thomas S.
Abstract:: 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...
Resource Type:: Dissertation

Stratigraphy, petrology and provenance of the Cretaceous Gable Creek Formation, Wheeler County, Oregon

Creator:: Little, Stephen W.
Abstract:: The Mitchell inlier in north-central Oregon contains the largest exposure of Cretaceous marine sedimentary rocks in this region. Nearly 9,000 ft of Albian-Cenamanian rocks are exposed along the flanks of the Mitchell anticline. The Cretaceous section rests unconformably overlain by Tertiary volcanic rocks. The Cretaceous rocks have previously been divided...
Resource Type:: Masters Thesis

Geology of part of the northern half of the Bend quadrangle, Jefferson and Deschutes counties, Oregon

Creator:: Stensland, Donald Eugene
Abstract:: The mapped area is part of the middle Deschutes Basin of central Oregon, which lies in the northwestern corner of the High Lava Plains physiographic province, between the Cascade and Ochoco Mountains. It is underlain by Cenozoic lavas, tuffs and sediments of continental origin. The oldest rocks in the sequence...
Resource Type:: Masters Thesis

The Deschutes Formation-- High Cascade transition in the Whitewater River area, Jefferson County, Oregon

Creator:: Yogodzinski, Gene M.
Abstract:: The Whitewater River area is located directly east of Mt. Jefferson in the Cascades of central Oregon. Approximately 90 mi2 (230 km2) were mapped (scale 1/24,000) and four new K-Ar ages and 151 major element analyses were obtained in a study of the stratigraphic and magmatic transition from the Miocene...
Resource Type:: Masters Thesis

Geology of the southernmost Deschutes basin, Tumalo quadrangle, Deschutes County, Oregon

Creator:: McDannel, Angela K.
Abstract:: The Tumalo quadrangle lies approximately 30 kilometers behind the Cascade volcanic arc and marks the southernmost extent of continuously exposed Deschutes Formation rocks. Deschutes Formation rocks in the Tumalo quadrangle include late Miocene volcaniclastic sedimentary rocks, ignimbrites and lapillistones, and late Miocene to early Pliocene basalts and basaltic andesites. Volcaniclastic...
Resource Type:: Masters Thesis

ScholarsArchive@OSU

Scenic photos of the South Umpqua River at Tiller

Stratigraphy and sedimentology of the middle eocene Cowlitz Formation and adjacent sedimentary and volcanic units in the Longview-Kelso area, southwest Washington

Geology of the Clarno Formation in the vicinity of Stephenson Mountain, Jefferson, Crook and Wheeler counties, Oregon

Volcanic stratigraphy of the Deschutes Formation, Green Ridge to Fly Creek, north-central Oregon

Geology of the Fly Creek quadrangle and the north half of Round Butte Dam quadrangle, Oregon

Development, fire history and current and past growth, of old-growth and young-growth forest stands in the Cascade, Siskiyou and mid-coast mountains of southwestern Oregon

Stratigraphy, petrology and provenance of the Cretaceous Gable Creek Formation, Wheeler County, Oregon

Geology of part of the northern half of the Bend quadrangle, Jefferson and Deschutes counties, Oregon

The Deschutes Formation-- High Cascade transition in the Whitewater River area, Jefferson County, Oregon

Geology of the southernmost Deschutes basin, Tumalo quadrangle, Deschutes County, Oregon

Limit your search

Academic Affiliation

Advisor

Commencement Year

Committee Member

Creator

Date

Decade

Degree Field

Degree Level

Degree Name

File Format

Language

License

Location

Non-Academic Affiliation

Peer Reviewed

Resource Type

Rights Statement

Subject

Search Constraints

Search Results

Limit your search