Index Catalog // ScholarsArchive@OSU

Geology of the Antone district of Wheeler County, Oregon

Creator:: Dobell, Joseph Porter
Abstract:: The area studied in detail, known as the Antone District, is located in the southeast corner of Wheeler County, Oregon, , between longitude 119 37. and 119°54 east, and latitude 44°23 and 44°3O' north. Surface elevations range from 3050 feet above sea level in the northeast corner of the district,...
Resource Type:: Masters Thesis

The geology of the Maury Mountain region, Crook County, Oregon

Creator:: Mote, Richard Hodges
Resource Type:: Masters Thesis
Full Text:: THE GEOLOGY OF THE MAURY MOUNTAIN REGION CROOK COUNTY

Geology of the Ana River section, Summer Lake, Oregon

Creator:: Conrad, Clarence Frederick
Resource Type:: Masters Thesis
Full Text:: Geology of the Ana River Section Summer Lake, Oregon

Geology of part of the Mitchell quadrangle Jefferson and Crook counties, Oregon

Creator:: Lukanuski, James Nick
Resource Type:: Masters Thesis

Geology and mineral deposits of the Brattain District, Lake County, Oregon

Creator:: Muntzert, James Kay
Resource Type:: Masters Thesis

Geology of the central Pueblo Mountains, Harney County, Oregon

Creator:: Tower, Dennis Brian
Abstract:: The thesis area consists of 44 square miles in southeast Harney County, Oregon. The Pueblo Mountains are located in the northwest part of the Basin and Range structural province, and are characterized by normal faults of large displacement that produced the tilted fault block mountain range. The oldest rocks exposed...
Resource Type:: Masters Thesis

The geology and mineral deposits of Eden Valley-Saddle Peaks and vicinity, southeastern Coos and northeastern Curry Counties, Oregon

Creator:: Utterback, W. C.
Resource Type:: Masters Thesis

Geology of the Saddle and Humbug Mountain area, Clatsop County, northwestern Oregon

Creator:: Penoyer, Peter E.
Abstract:: Six early to middle Tertiary geologic units crop out in the Saddle and Humbug Mountain area. They include the late Eocene to early Miocene Oswald West muds tones, the lower Silver Point and the upper Silver Point tongues of the middle Miocene Astoria Formation, and the middle Miocene Depoe Bay...
Resource Type:: Masters Thesis

The petrography, structure, and stratigraphy of Powell Buttes, Crook County, central Oregon

Creator:: Weidenheim, Jan Peter
Resource Type:: Masters Thesis

Bedrock geology and structure of the Murderers Creek Area, Grant County, Oregon

Creator:: Stockman, Alan Owen
Abstract:: The Murderers Creek Area, within the Aldrich Mountain province of northeast Oregon, originated in an arc-trench gap during Permian-early Triassic time. The area represents a small portion of a forearc depositional basin and tectonic highland which borders the basin along its seaward margin. The trench associated with an east dipping...
Resource Type:: Masters Thesis

Geology, geochemistry, and mineralization of the Yellowbottom-Boulder Creek area, Linn County, Oregon

Creator:: Nicholson, David K.
Resource Type:: Masters Thesis

The geology of the east central desolation butte quadrangle, Grant County, Oregon

Creator:: Elfrink, Neil
Abstract:: Pre-Tertiary metamorphic rocks, Jurassic granitic intrusions, and Eocene basalts are exposed along the North Fork of the John Day River at its confluence with Granite Creek. Geochemical and textural evidence suggest greenschist-metamorphosed, strongly sheared, volcanogenic rocks originated in an island-arc environment. These greenstones were apparently intruded during the Late Permian...
Resource Type:: Masters Thesis

Stratigraphy and sedimentary petrology of the Mascall Formation, eastern Oregon

Creator:: Kuiper, John L.
Abstract:: The type section of the Mascall Formation, which is located in the John Day Valley, is interpreted to represent a sequence of paleosols. These fossil soils were formed on a floodplain during the middle Miocene. The measured thickness of this section is 1340 feet, and although the top of the...
Resource Type:: Masters Thesis
Full Text:: Formation, eastern Oregon AN ABSTRACT OF THE THESIS OF John L. Kuiper for the degree of MASTER OF SCIENCE

Geology of the Green Mountain-Young's River area, Clatsop County, northwest Oregon

Creator:: Peterson, Carolyn Pugh
Abstract:: The upper Eocene to lower Oligocene Oswald West mudstone is the oldest formation (informal) in the Green Mountain-Young's River area. This 1,663 meter thick hemipelagic sequence was deposited in a low-energy lower to upper slope environment in the Coast Range forearc basin. The formation ranges from the late Narizian to...
Resource Type:: Masters Thesis

Castle Rocks : a late miocene eruptive center at the north end of Green Ridge, Jefferson County, Oregon

Creator:: Wendland, David W.
Abstract:: Castle Rocks is 12 miles east of Mt. Jefferson, in the central Cascades of Oregon. The area contains volcanic rocks ranging from mid-Miocene to Holocene in age. These rocks record alternating periods of tholeiitic and calc-alkaline volcanism. The oldest rocks in the area range from basaltic andesite lava flows to...
Resource Type:: Masters Thesis

Geology of the eastern part Beaty Butte four quadrangle, Oregon

Creator:: Maloney, Neil Joseph
Resource Type:: Masters Thesis

Geology and mineral deposits of the Coyote Hills mining district, Lake County, Oregon

Creator:: Thomas, Thomas Holbeck
Abstract:: The Coyote Hills are located about 46 kilometers north-northwest of Lakeview, Oregon, within the Basin and Range physiographic province. These hills represent a complex volcanic center of bimodal calc-alkaline igneous activity. The oldest rocks recorded in the Tertiary succession are horn-blende- bearing andesite and aphanitic basalt flows, laharic breccias, conglomerates,...
Resource Type:: Masters Thesis

Stratigraphy and foraminifera of the upper part of the Nye formation, Yaquina Bay, Oregon

Creator:: Heacock, Robert Leon
Resource Type:: Masters Thesis

Stratigraphy of the Miocene Agate Beach formation in Lincoln County, Oregon

Creator:: Herron, John Emanuel
Resource Type:: Masters Thesis

Environmental and engineering geology of the Astoria Peninsula Area Clatsop County, Oregon

Creator:: Carter, James Warren
Resource Type:: Masters Thesis

The geology of the southeast one-quarter of the Tyee quadrangle and part of the adjacent Sutherlin quadrangle, Oregon

Creator:: Hampton, Eugene Randolph
Resource Type:: Masters Thesis

Geology of a portion of the Painted Hills Quadrangle, Wheeler County, north-central Oregon

Creator:: Huggins, Jonathan Wayne
Resource Type:: Masters Thesis

The structure and stratigraphy of a portion of the Trout Creek Mountains, Harney County, Oregon

Creator:: Carlton, Richard W.
Abstract:: The thesis area is located in the southeastern corner of Harney County, Oregon. This portion of Oregon is situated in the northern part of the Basin and Range province, and is characterized by both mafic and silicic extrusives, and localized nonmarine sediments and tuffs ranging in age from middle (?)...
Resource Type:: Masters Thesis

Geology of the North-Central Pueblo Mountains, Harney County, Oregon

Creator:: Harrold, Jerry Lee
Resource Type:: Masters Thesis

Stratigraphy and petrology of the late cretaceous rocks near Hilt and Hornbrook, Siskiyou County, California, and Jackson County, Oregon

Creator:: Elliott, Monty Arthur
Resource Type:: Dissertation

Geology of the Sand Mountain area, Western Wheeler County, Oregon

Creator:: Barnes, Thomas John
Resource Type:: Masters Thesis

Geology of the Fishhawk Falls--Jewell area, Clatsop County, northwest Oregon

Creator:: Nelson, David Ezra
Abstract:: Plate 1 dimensions: 46 x 25 Plate 2 dimensions: 50 x 31 Plate 3 dimensions: 21 x 24.5 Plate 4 dimensions: 18 x 24.5
Resource Type:: Masters Thesis

Geology and mineralization of the Banfield and Rowley volcanogenic massive sulfide deposits, Douglas Co., Oregon

Creator:: Fifarek, Richard H.
Resource Type:: Masters Thesis

Geology and mineral deposits of the Bohemia Mining District, Lane County, Oregon

Creator:: Schaubs, Michael Paul
Resource Type:: Masters Thesis

Geology and structure of the Bear Creek area, Crook County, Oregon

Creator:: Khan, Amjad I.
Abstract:: The Bear Creek area is situated at the boundry between the Basin and Range Province, Deschutes Basin and Blue Mountains Province. It contains rock units representing most of the Cenozoic geologic column. The major rock units exposed are the Clarno Formation, John Day Formation, Columbia River Basalt Group, Deschutes Formation...
Resource Type:: Masters Thesis

Geology of the Hamlet-North Fork of the Nehalem River area, southern Clatsop and northernmost Tillamook Counties, northwest Oregon

Creator:: Rarey, Phillip Jay
Abstract:: The middle to late Eocene tholeiitic Tillamook Volcanics compose the oldest rock unit in the Hamlet-North Fork of the Nehalem River area. Geochemical plots and field relationships indicate that these rocks were produced in an extensional tectonic setting in the developing forearc and formed an extensive tholeiltic oceanic island. The...
Resource Type:: Masters Thesis

Geology of the Rock Creek-Green Mountain area, southeast Clatsop and northernmost Tillamook counties, northwest Oregon

Creator:: Safley, L. Eugene
Abstract:: The middle to upper Eocene Tillamook Volcanics form the volcanic core or basement rocks in the Rock Creek-Green Mountain area. They consist of a thick sequence of high TiO2 tholeiitic basalt, basaltic andesite, and andesite subaerial flows and breccias. Detailed mapping, petrography, major oxide plots, magnetic polarity, and radiometric age...
Resource Type:: Masters Thesis

Geology of the Seaside-Young's River Falls area, Clatsop County, Oregon

Creator:: Tolson, Patrick Marion
Abstract:: Eight Tertiary geologic units crop out in the Seaside-Young's River Falls area, including late Oligocene to early Miocene Oswald West mudstones; Angora Peak sandstone and Silver Point members of the middle Miocene Astoria Formation, and middle Miocene Depoe Bay and Cape Foulweather Basalts. Three new lithologically distinct units, the 'J'...
Resource Type:: Masters Thesis

Geology of the Elsie-lower Nehalem River area, south-central Clatsop and northern Tillamook counties, northwestern Oregon

Creator:: Mumford, Daniel Franklin
Abstract:: 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...
Resource Type:: Masters Thesis

Stratigraphy and sedimentation of the Onion Peak area, Clatsop County, Oregon

Creator:: Smith, Thomas N.
Abstract:: Six Tertiary units are exposed in the Onion Peak area near the town of Cannon Beach., Oregon. The units consist of: late Eocene to early Miocene Oswald West mudstones (informal), middle Miocene Astoria Formation (Angora Peak sandstone and Silver Point mudstone members.-informal), middle Miocene basalts of intrusive and extrusive Depoe...
Resource Type:: Masters Thesis

Geology of part of southern Morrow County, northeast Oregon

Creator:: Shorey, Edwin Forrest
Abstract:: The thesis area is located in the Blue Mountains of northeast Oregon. Pre-Tertiary and Cenozoic rocks, divided on the basis of age and tectonic history, are exposed along the eroded crest of the Blue Mountain anticline. Permian (?) metasedimentary rocks probably correlate with the Elkhorn Ridge Argillite, and consist mainly...
Resource Type:: Masters Thesis

Stratigraphy, sedimentation, and petrology of the Tertiary rocks in the Bear Creek-Wickiup Mountain-Big Creek area, Clatsop County, Oregon

Creator:: Coryell, George Fossas
Abstract:: Six Tertiary rock units are exposed in the Bear Creek-Wickiup Mountain-Big Creek area. They are: the late Oligocene to early Miocene Oswald West mudstones; the Big Creek sandstone member, the Pipeline member (a new unit), and the Silver Point mudstone member of the early to middle Miocene Astoria Formation; and...
Resource Type:: Masters Thesis

Stratigraphy and sedimentation of the Neahkahnie Mountain - Angora Peak area, Tillamook and Clatsop Counties, Oregon

Creator:: Cressy, Frank Beecher
Abstract:: Four distinct lithologic units compose the Tertiary rocks of the Neahkahnie Mountain - Angora Peak area, located along the northwest Oregon coast near the town of Nehalem. The Tertiary units are the late Oligocene to early Miocene Oswald West mudstones, the middle Miocene Angora Peak sandstone member of the Astoria...
Resource Type:: Masters Thesis

Tertiary stratigraphy and sedimentation in the Young's River -Lewis and Clark River area, Clatsop County, Oregon

Creator:: Nelson, Michael Peter
Abstract:: Five early to middle Tertiary bedrock geologic units crop out in the study area. These include the late Eocene to early Miocene Oswald West mudstones; the Tucker Creek sandstone, Big Creek sandstone, Silver Point mudstone, and Pipeline members of the early to middle Miocene Astoria Formation; and the middle Miocene...
Resource Type:: Masters Thesis

Geology of the Tillamook Head--Necanicum Junction area, Clatsop County, northwest Oregon

Creator:: Neel, Robert Holmes
Abstract:: Five distinct lithologic units compose the Tertiary rocks in the Tillamook Head - Necanicum Junction area of the northern Oregon Coast Range. They are: the late Eocene to early Miocene Oswald West mudstones, the middle Miocene Angora Peak sandstone and Silver Point mudstone members of the Astoria Formation, and the...
Resource Type:: Masters Thesis

The geology of the Elk Mountain-Porter Ridge area, Clatsop County, northwest Oregon

Creator:: Goalen, Jeffrey Scott
Abstract:: Eight Tertiary sedimentary and volcanic units crop out in the thesis area. From oldest to youngest they are the: Sager Creek formation (informal); Pittsburg Bluff Formation; Northrup Creek formation (informal); Smuggler Cove formation (informal); Wickiup Mountain and Cannon Beach members (both informal) of the Astoria Formation; the Grande Ronde Basalt,...
Resource Type:: Masters Thesis

The geology of the Nicolai Mountain-Gnat Creek area, Clatsop County, northwestern Oregon

Creator:: Murphy, Thomas M.
Abstract:: Twelve rock units, from upper Eocene to middle Miocene are exposed in the Nicolai Mountain-Gnat Creek area. They are, from oldest to youngest: Pittsburg Bluff Formation; Oswald West mudstone; Big Creek sandstone, upper Silver Point mudstone, and Pipeline mudstone members of the Astoria Formation; Depoe Bay Basalt; Grande Ronde Basalt;...
Resource Type:: Masters Thesis

Stratigraphy and sedimentation of the Yaquina formation, Lincoln County, Oregon

Creator:: Goodwin, Clinton John
Abstract:: The late Oligocene Yaquina Formation is exposed in an arcuate outcrop pattern which extends along the central Oregon Coast from Siletz Bay on the north to Seal Rock on the south. Maximum inland extent of the Yaquina outcrop is :five miles. Maximum thickness of the Yaquina Formation is 2, 000...
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

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

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

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

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