Pressurized liquid extraction (PLE) was evaluated as a method for extracting semivolatile organic compounds (SOCs) from air sampling media; including quartz fiber filter (QFF), polyurethane foam (PUF), and a polystyrene divinyl benzene copolymer (XAD-2). Hansen solubility parameter plots were used to aid in the PLE solvent selection in order to...
Collaborative Regional Learning This document is part of a forest collaborative regional learning project on aspen restoration and social agreements. Thanks to all the individuals, collaborative groups, and organizations who provided feedback and suggestions. We appreciate the participation of members from: Blue Mountains Forest Partners, Deschutes Collaborative Forest Project, Harney...
Background: In Drosophila, male flies require the expression of the male-specific Fruitless protein (FRU[superscript M]) within the
developing pupal and adult nervous system in order to produce male courtship and copulation behaviors. Recent
evidence has shown that specific subsets of FRU[superscript M] neurons are necessary for particular steps of courtship...
The mapped area lies between the Wallowa Mountains
of northeastern Oregon and the Seven Devils Mountains of
western Idaho. Part of the Snake River canyon is included.
A composite stratigraphic section includes at least
30,000 feet of strata. Pre- Tertiary and Tertiary strata
are separated by a profound unconformity. Pre...
Within 40 square miles of the southeastern Wallowa
Mountains, Oregon, eugeosynclinal Permian and Triassic
formations comprising a section about 25,000 feet thick
have been exposed by uplift and erosion of overlying
Miocene Columbia River basalt. Deposition appears to have
been continuous from Permian into Upper Triassic, but an
apparent angular...
The Bethlehem Copper Mine, a porphyry copper deposit, is
situated near the geographical center of the Guichon Creek batholith.
The Guichon Creek batholith is located on the east flank of the
Canadian Coast Range in south central British Columbia approximately
250 miles northeast of Vancouver, B. C. The batholith
trends...
The American Land Institute is proud to present this study, Oregon’s Public Investment in Conservation, Prosperity and Fairness. This is the first major study on a topic that has been largely overlooked in past and current discussions of land use law in Oregon: the nature and extent of property tax...
A state selected at random from the Hilbert space of a many-body system is overwhelmingly likely to exhibit highly non-classical correlations. For these typical states, half of the environment must be measured by an observer to determine the state of a given subsystem. The objectivity of classical reality—the fact that...
Atmospheric measurements of semivolatile organic compounds (SOCs) were made at Mt. Bachelor Observatory (MBO), located in Oregon’s Cascade Range, to understand the trans-Pacific and regional transport of SOCs from urban areas. High volume air sampling (~644 m³ for 24 hour periods) of both the gas and particulate phases was conducted...
Conifers comprise an ancient and widespread plant lineage of enormous commercial and ecological value. However, compared to model woody angiosperms, such as Populus and Eucalyptus, our understanding of conifers remains quite limited at a genomic level. Large genome sizes (10,000–40,000 Mbp) and large amounts of repetitive DNA have limited efforts...
Surface and subsurface data are combined to determine the structure of the western half of the Simi fault system in the Las Posas and Camarillo Hills area. Cretaceous to Eocene sedimentary rocks, present only in the subsurface, are overlain by late Eocene to early Miocene nonmarine stata (Sespe Formation) and...
Ecosystem services play a crucial role in sustaining human well-being and economic viability. People benefit substantially from the delivery of ecosystem services, for which substitutes usually are costly or unavailable. Climate change will substantially alter or eliminate certain ecosystem services in the future. To better understand the consequences of climate...
The Willamette Valley of Oregon has high rates of winter precipitation that cause
leaching losses of residual fertilizer nitrogen (N) as nitrate (NO₃). Cover crops may have
potential to mitigate N loss. Shallow groundwater was sampled for 11 years from plots
planted in summer vegetables with and without winter cover...
Climate and terrestrial vegetation have had mutual feedbacks for nearly five hundred million years, yet both are now departing from recent historical norms, with uncertain implications for forest ecosystems. This dissertation outlines the current and potential future climate responses of lichen and bryophyte communities in the United States as part...
Cold air drainage and pooling occur in many mountain valleys, especially at night and during winter. Local
climate regimes associated with frequent cold air pooling have substantial impacts on species phenology, distribution and
diversity. However, little is known about how the degree and frequency of cold air drainage and pooling...
Six Tertiary rock units are exposed in the Buster Creek-Nehalem Valley area. They are, from oldest to youngest: upper Eocene
Tillamook Volcanics; upper Eocene Cowlitz Formation; upper Eocene Keasey Formation; upper Eocene Vesper Church formation (informal); upper Eocene to Oligocene Pittsburg Bluff Formation; and middle Miocene Depoe Bay Basalt. The...
Non-point agricultural contaminants, such as nitrogen, may lower groundwater quality and thereby impose health and environmental risks. The objective of this study is to evaluate tax policies to control agricultural pollutants in a spatially heterogeneous and dynamic setting. The focus of the study is non-point source nitrate contamination of groundwater...
The Santa Barbara-Montecito and Goleta basins are structurally
continuous fault-controlled Pleistocene basins containing
up to 3000 feet (925 m) of marine Pleistocene Santa Barbara Formation
which were deposited on previously deformed Sisquoc and older
strata. Structures subcropping against the unconformity at the
base of the Santa Barbara Formation show that...
Metro received grant funding from the U.S. Environmental Protection Agency in 1995 to gather digital, or computerized, geographic data for the Clackamas River watershed. This atlas was produced as one way to share the information collected with resource managers, policy makers, and people living in and interested in the Clackamas...
Given a number field K, we consider families of critically separable rational maps of degree d over K possessing a certain fixed-point and multiplier structure. With suitable notions of isomorphism and good reduction between rational maps in these families, we prove a finiteness theorem which is analogous to Shafarevich’s theorem...
Oregon is the number one producer of cool-season grass seed in the United
States. The center of the grass seed industry of Oregon is located in the Willamette
Valley, where about 470,000 acres of seed are grown. Innovative grass seed growers
of the area are beginning to implement precision agriculture...
"This guidebook is intended to serve as a reference to help local governments plan for the protection of wetlands and meeting the requirements of statewide planning goals, particularly Goal 5. This guidebook does not create any new policy; it only seeks to explain existing statutes and administrative rules. Background and...
Surface and subsurface mapping are combined to determine the structure and geologic history of the eastern
half of the Simi fault in the Simi Valley area. Upper Cretaceous rocks exposed south and east of the Simi Valley are overlain unconformably by the nonmarine Simi Conglomerate of Paleocene age. The Marine...
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...
The Upper Ojai Valley is a tectonic depression between
opposing reverse faults, Its northern border is formed
by the active, north-dipping San Cayetano fault with 6.0
km of dip-slip displacement in the Silverthread oil field
and 2.6 km displacement west of Sisar Creek; the fault
dies out farther west in...
The Seaman Gulch area is located approximately 20
miles east of Redding, California and is part of the
eastern Klamath lithotectonic belt.
Rock units of the area are chiefly mafic and silicic
volcanics of island arc affinity and shale that are Permian
to Triassic in age. Volcanic rocks of Tertiary...
There are approximately 4,000,000 acres of cut-over and burned-over land in western Washington and Oregon which are either non-stocked or unsatisfactorily stocked with young forest growth. This brings about a great need for a quick and efficient method of land examination from which to plan reforestation measures and make up...
In the area surrounding Clarno, Oregon, pre-Cretaceous metamorphics, Cretaceous marine sediments, and a varied assemblage of Tertiary volcanic rocks are known. The oldest exposures are of an homogeneously fine-grained, mildly metamorphosed, limy shale to which the term "Muddy Ranch phyllite" is applied. Non-metamorphosed, Cretaceous marine shales and graywackes, approximately 1500...
The Whittier fault forms the central part of a fault system extending
from the East Montebello fault at Whittier Narrows to the Elsinore fault,
which is traced as far as the Mexican border. The Whittier fault forms a
restraining bend in this fault system, resulting in uplift of the Puente...
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...
We have developed a method for the determination of the orientational distribution function of partially ordered systems from the EPR line shape that is an alternative to the usual one of expansion in the elements of the Wigner rotation matrices. The method can be applied to distribution functions whose expansion...
The Middle and West Forks of Little Sheep Creek in the southern Tendoy Range have incised valleys across Cenozoic structural features exposing strata that range in age from the Mississippian to the Neoene. Paleozoic strata are 1,349 m thick and belong to the Mission Canyon Limestone, the Big Snowy, Amsden,...
This study evaluates four policy options to secure the water supply needed for wetland conservation in Qixinghe—a national wetland nature reserve in China—using four criteria: cost effectiveness, probability of success in achieving the water-saving goal, political feasibility, and farmer acceptance. This multi-criteria analysis framework reveals the ecological, economic, and socio-political...
Consists of 12 PowerPoint presentations created for a course in subject analysis taught at Charles University, Prague, in 2005. Topics covered include subject heading construction, classification, shelf listing, and subject authority work, with emphasis on Library of Congress Subject Headings and Library of Congress Classification.
Presentation as part of the session "Short Papers Panel: Diversity and Cultural Communities" at the 2016 annual Rare Books and Manuscripts Section (RBMS) conference in Coral Gables, Florida, June 24, 2016. RBMS is a part of the Association of College & Research Libraries, a division of the American Library Association.
On the basis of their morphology and seasonal thermal characteristics, recurrent slope lineae (RSL) on Mars have been inferred to be a possible result of the flow of a liquid (likely a saline brine) through the upper portions of the martian regolith. In this note, we analyze repeat HiRISE imaging...
This multidisciplinary study integrates remote sensing, stratigraphy, siliciclastic and carbonate sedimentology, tectonics, and petrography of the Nisai, Khojak and Sharankar Formations to reveal the Paleogene depositional, diagenetic and deformational history of the Katawaz Basin.
Study of Landsat Thematic Mapper (TM) digital data shows that maximum discrimination of different rocks is...
Since 1979, over $114 million of natural gas has been produced at the Mist Gas Field, currently the only commercial gas field in the Pacific Northwest. In the Mist Gas Field, the sandstone-dominated Clark and Wilson member of the upper Eocene Cowlitz
Formation is the reservoir and the overlying upper...
With more and more cartographic data being created and released only as GIS datasets, map catalogers will eventually find themselves moving away from Machine Readable Cataloging (MARC) as their primary bibliographic description schema and moving towards the Federal Geographic Data Committee (FGDC). This move will be necessitated in large part...
Accurate chromosome segregation and cell cleavage are critical to maintaining genomic integrity. Both events involve the spindle apparatus, but the exact mechanics is as puzzling as the contradicting models proposed in the last two centuries. In this dissertation, current prevailing models of chromosome segregation and cell cleavage are tested using...
Ceratomyxa shasta is a myxozoan parasite identified as a contributor to salmon mortality in the Klamath River, USA. The parasite has a complex life cycle involving a freshwater polychaete, Manayunkia speciosa and a salmonid. As part of ongoing research on how environmental parameters influence parasite establishment and replication, we designed...
The Russell Ranch oil field is located in the southern Coast
Ranges west of Bakersfield, California. Detailed subsurface
mapping shows that a northwest-oriented right-lateral wrench-fault
system was active from possibly latest Oligocene to Pliocene time.
The effects of Quaternary thrusting were superimposed on, and influenced
by, structures associated with the...
Sequence stratigraphic analysis of the southern Tyee basin, Oregon Coast Range, reveals
that the lower to middle Eocene forearc and subduction zone strata comprise four depositional
sequences. Sequence I (lower Umpqua Group) represents a partially subducted accretionary
wedge. Sequence II (upper Umpqua Group) is a deltaic sequence that filled irregular...
The Upper Ojai Valley is a tectonic depression between
opposing reverse faults, Its northern border is formed
by the active, north-dipping San Cayetano fault with 6.0
km of dip-slip displacement in the Silverthread oil field
and 2.6 km displacement west of Sisar Creek; the fault
dies out farther west in...
Subsurface mapping was used to determine the structure andgeologic history of the South Cuyama dome and part of the Russellfault in the South Cuyama oil field area. Deformed Late Cretaceousand or early Tertiary marine strata are unconformably overlain bythe late Oligocene to early Miocene Vaqueros Formation (QuailCanyon Sandstone Member, Soda...
Eleven small Mesozoic plutons crop out within a 76-squaremile
area of the southern Seven Devils Mountains in west-central
Idaho. The plutons are divided into a mafic suite, an older granitic
suite, and a younger granitic suite on the basis of age, lithology, and
degree of metamorphism.
The six plutons of...
The Bethlehem Copper Mine, a porphyry copper deposit, is
situated near the geographical center of the Guichon Creek batholith.
The Guichon Creek batholith is located on the east flank of the
Canadian Coast Range in south central British Columbia approximately
250 miles northeast of Vancouver, B. C. The batholith
trends...
Many of the natural resource problems facing man in the present
era are so large and complicated that no one discipline provides an
adequate approach for their solutions. As an example, the relationships
of man to the land resource base can best be understood when
they are considered holistically rather...
Deep-sea bamboo coral (Isidella sp.) SE000901A from the southern Oregon coast (water depth 1048m) provides a high-resolution record of variability of North Pacific Intermediate Water (NPIW) and carbon rain to the sea floor, related to coastal upwelling, from 1808 to 2000AD. Counting of annual layers in magnesium to calcium (Mg/Ca)...
The Middle and West Forks of Little Sheep Creek in the southern Tendoy Range have incised valleys across Cenozoic structural features exposing strata that range in age from the Mississippian to the Neoene. Paleozoic strata are 1,349 m thick and belong to the Mission Canyon Limestone, the Big Snowy, Amsden,...
Surface and subsurface data are combined to determine the structure of the western half of the Simi fault system in the Las Posas and Camarillo Hills area. Cretaceous to Eocene sedimentary rocks, present only in the subsurface, are overlain by late Eocene to early Miocene nonmarine stata (Sespe Formation) and...
We studied the natural hybrid (Fragaria ×ananassa subsp. cuneifolia) between
two sexually dimorphic octoploid strawberry species (F. virginiana and F.
chiloensis) to gain insight into the dynamics of sex chromosomes and the
genesis of sexual dimorphism. Male sterility is dominant in both the parental
species and thus will be inherited...
In this presentation Fernández describes an iBooks project between the Oregon Multicultural Archives and two performing arts groups in Oregon, Milagro and the Obo Addy Legacy Project.
Lack of growing season precipitation and the temperate climate in north central Oregon
pose challenges to growing spring wheat crops. Phosphate and sulfate fertilization can
improve early growth of spring wheat in this region and soil testing aids in determining
rates of fertilization. In this study, anion exchange membranes (AEM)...
The interaction of magma with continental crust at convergent margins is fundamental to
understanding if and how continents grow. Isotopic and elemental data constrain the
progressive stages of development of the magmatic underpinnings of the long-lived
Aucanquilcha Volcanic Cluster (AVC), situated atop the thick continental crust of the
central Andes...
Various types of mass movement features are found in the drainage
basin of the East Fork Coquille River in the southern Oregon Coast
Range. The distribution and forms of mass movement features in the area
are related to geologic factors and the resultant topography.
The Jurassic Otter Point Formation, a...
Timber management of coastal watersheds in southwest Oregon has
been complicated by the need to protect anadromous fish habitat from
accelerated stream sedimentation resulting from management activity.
The rugged terrain of the Elk and Sixes River basins is underlain by
the complex geological province of the Klamath Mountains, in which...
The schist of Skookum Gulch (SSG) is an informal name applied to
a fault-bounded melange composed mainly of schistose metamorphic
rocks and less abundant sedimentary and igneous rocks located in the
eastern Klamath Mountains of northern California. The SSG features
outcrops of lawsonite+sodic amphibole blueschist and epidote+sodic
amphibole rocks transitional...
This thesis is an effort to formalize and document some of the changes occuring in the Warwar Valley of Gongola State, Nigeria, West Africa. The documentation will comprise a photographic study over time accompanied by an ethnographic narrative. Information gathered from photographic images, field notes and the anthropological record will...
When voters considered Measure 37 in 2004, what it would do was a guessing game. Moreover, arguments made to justify the measure were untested. Today, three years and 7,462 claims later, what Measure 37 would do is increasingly clear. In addition, new research shows two key Measure 37 justifications were...
The Devonian Simonson and Guilmette Formations provide examples of
Cordilleran miogeosynclinal inner and middle shelf carbonate deposition
that act in response to changes in eustasy, sedimentation, and
tectonics. The Simonson Dolomite consists of four members that
collectively record three distinct transgressive-regressive cycles.
The Coarse Crystalline dolomudstone lithofacies represents restricted
upper...
The purpose of this report is to characterize the December 2007 storm and long-term storm variability along the Oregon and Washington coast, present the results of a rapid assessment of randomly selected OWEB restoration projects (restoration activities including large wood placement, fish passage, and riparian planting), and based on the...
To examine whether stream nitrogen concentrations in forested reference catchments have
changed over time and if patterns were consistent across the USA, we synthesized up to 44 yr
of data collected from 22 catchments at seven USDA Forest Service Experimental Forests.
Trends in stream nitrogen presented high spatial variability both...
Surface geology, seismic data, petroleum exploratory well data, and water well data
have been used to analyze the structural and tectonic history of the southern Willamette
Valley. Tertiary strata beneath the southern Willamette Valley appear to have had an early
Cascade or Clarno volcanic source to the east by the...
The North Unit irrigation District of Central Oregon,
a water project developed under the guidelines of the
Bureau of Reclamation, is characterized by limited water
and the need for efficient utilization and control of the
irrigation system. To manage the limited water resource,
irrigators need a timely and economical method...
Google Earth has given internet users the power of a virtual globe at their fingertips. It is
a free, easy to use tool that avoids the need for technical training, and uses a simple,
intuitive interface. For this reason, Google Earth appeals to general and more specialized
users. This project...
Major disasters are taking an ever-increasing toll on American
communities. To cope with this growing problem, Benton County is
seeking to adopt an alternative approach known as Community-
Based Emergency Preparedness. Its goal is to improve collaboration
among governmental agencies and the public to gain greater
flexibility in decision-making and...
The northwest one-quarter of the Prineville Quadrangle is
underlain by Tertiary and Quaternary volcanic and volcaniclastic
rocks of the Columbia River Basalt Group, and the Clarno, John Day,
Rattlesnake and Deschutes Formations.
The Clarno Formation is dominated by pyroxene-bearing
andesites, but also contains olivine-bearing basalts, oxyhornblende-bearing
dacite and rhyodacite flows...
Snap beans are the vegetable form of dry bean (Phaseolus vulgaris L.) with low fiber, stringless and round, succulent pods that are eaten in the immature stage. Seed companies commit significant resources to maintaining purity and uniformity of snap bean cultivars. While some variability may be introduced through outcrossing (beans...
Sequence stratigraphic analysis of the southern Tyee basin, Oregon Coast Range, reveals
that the lower to middle Eocene forearc and subduction zone strata comprise four depositional
sequences. Sequence I (lower Umpqua Group) represents a partially subducted accretionary
wedge. Sequence II (upper Umpqua Group) is a deltaic sequence that filled irregular...
Surface transient storage (STS) and hyporheic transient storage (HTS) have
functional significance in stream ecology and hydrology. Both provide refugia for aquatic
communities and their longer mean residence times (compared to the main flow) increase
the potential for biogeochemical reactions that can improve water quality. As STS and
HTS have...
The Peck Mountain area is located in west-central Idaho just 15 miles east of the Oregon-Idaho border. It is tectonically located within the "Columbia Arc" of the Nevadan oroaenic belt. The Seven Devils Volcanics, Permian to Traissic in age, are the oldest rocks in the area. They are composed of...
This thesis is an effort to formalize and document some of the changes occuring in the Warwar Valley of Gongola State, Nigeria, West Africa. The documentation will comprise a photographic study over time accompanied by an ethnographic narrative. Information gathered from photographic images, field notes and the anthropological record will...
This thesis is an effort to formalize and document some of the changes occuring in the Warwar Valley of Gongola State, Nigeria, West Africa. The documentation will comprise a photographic study over time accompanied by an ethnographic narrative. Information gathered from photographic images, field notes and the anthropological record will...