Index Catalog // ScholarsArchive@OSU

Petrogenesis of Luna 16 aluminous Mare basalts

Creator:: Ma, M.‐S., Schmitt, R. A., Nielsen, R. L., Taylor, G. J., Warner, R. D., and Keil, K.
Abstract:: Bulk compositions, petrology and mineralogy of > 0.5 mm Luna 16 aluminous mare basalt particles are described. The data rule out any close genetic relationships between Luna 16 and other major types of lunar mare basalts. Compared to high‐Ti mare basalts, the Luna 16 basalts contain lower TiO₂ (5.1 wt...
Resource Type:: Article
Full Text:: , OR 97331 R. L. Nielsen , G. J. Taylor, R. D. Warner and K. Keil Department of Geology and

Purification and characterization of R. meliloti RNA polymerase from wild type and mutant strains, and the role of the enzyme in the specificity of in vitro transcription of nitrogen fixation genes

Creator:: Nielsen, Brent L.
Resource Type:: Dissertation
Full Text:: transcription of nitrogen fixation genes AN ABSTRACT OF THE THESIS OF Brent L. Nielsen for the degree of

The effects of re‐homogenization on plagioclase hosted melt inclusions

Creator:: Nielsen, Roger L.
Abstract:: Melt inclusions trapped in phenocrysts provide a unique picture of magma systems prior to modification by crustal processes. However, post-entrapment crystallization complicates their interpretation. Re-heating the phenocryst to the temperature of entrapment is a commonly applied method to recover the original melt composition. To understand the effects of re-homogenization, we...
Resource Type:: Article
Full Text:: September 2011; Published 27 October 2011. Nielsen, R. L. (2011), The effects of re‐homogenization on

Phase equilibria constraints on liquid lines of descent generated by paired assimilation and fractional crystallization: Trace elements and SR and ND isotopes

Creator:: Nielsen, Roger L.
Abstract:: Utilizing a phase equilibria based trace element isotope model for low pressure igneous differentiation, it is now possible to update the methods presently being used to evaluate the effect of assimilation and fractional crystallization (AFC) processes. The results of the calculations presented here indicate that bulk partition coefficients (D) for...
Resource Type:: Article
Full Text:: , 1975. Nielsen, R. L., A method for the elimination of the compositional dependence of trace element

LangeAmyCEOASPetrogenesisPlagioclase-Phyric.pdf

Creator:: Lange, Amy E., Nielsen, Roger L., Tepley, Frank J., III, and Kent, Adam J. R.
Abstract:: Plagioclase ultraphyric basalts (PUBs) have been sampled along most mid-ocean ridges with ultraslow to intermediate spreading rates. Over the past 40 years, the prevalent models for their origin assume positive buoyancy of plagioclase in basaltic liquids resulting in selective concentration of plagioclase phenocrysts by floatation. However, when the global population...
Full Text:: ., R. L. Nielsen, F. J. Tepley III, and A. J. R. Kent (2013), Petrogenesis of plagioclase-phyric

LangeAmyCEOASPetrogenesisPlagioclase-Phyric_SupportingInformation.zip

Creator:: Lange, Amy E., Nielsen, Roger L., Tepley, Frank J., III, and Kent, Adam J. R.
Abstract:: Plagioclase ultraphyric basalts (PUBs) have been sampled along most mid-ocean ridges with ultraslow to intermediate spreading rates. Over the past 40 years, the prevalent models for their origin assume positive buoyancy of plagioclase in basaltic liquids resulting in selective concentration of plagioclase phenocrysts by floatation. However, when the global population...

The petrogenesis of plagioclase-phyric basalts at mid-ocean ridges

Creator:: Lange, Amy E., Nielsen, Roger L., Tepley, Frank J., III, and Kent, Adam J. R.
Abstract:: Plagioclase ultraphyric basalts (PUBs) have been sampled along most mid-ocean ridges with ultraslow to intermediate spreading rates. Over the past 40 years, the prevalent models for their origin assume positive buoyancy of plagioclase in basaltic liquids resulting in selective concentration of plagioclase phenocrysts by floatation. However, when the global population...
Resource Type:: Article

Tahiti: Geochemical evolution of a French Polynesian volcano

Creator:: Duncan, Robert A., Fisk, Martin R., White, William M., and Nielsen, Roger L.
Abstract:: The island of Tahiti, the largest in French Polynesia, comprises two major volcanoes aligned NW-SE, parallel with the general trend of the Society Islands hotspot track. Rocks form this volcanic system are basalts transitional to tholeiites, alkali basalts, basanites, picrites, and evolved lavas. Through K-Ar radiometric dating we have established...
Resource Type:: Article
Full Text:: Geological Sciences, Cornell University, Ithaca, New York Roger L. Nielsen College of Oceanic and

Production and income statistics for specialty farm products, Oregon - 1939

Creator:: Oregon State College. Federal Cooperative Extension Service, Thomas, M. D., Breithaupt, L. R. (Le Roy), 1886-, and Nielsen, N. I.
Abstract:: Published August 1940. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Resource Type:: Other
Full Text:: PRODUCTION AND INCOME STATISTICS for SPECIALTY FARM PRODUCTS OREGON 1939 by N. 1). Thomas, L. R. Breith

Small fruits - 1940 : production and income statistics for Oregon by counties

Creator:: Oregon State College. Federal Cooperative Extension Service, Thomas, M. D., Breithaupt, L. R. (Le Roy), 1886-, and Nielsen, N. I.
Abstract:: Published June 1941. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Resource Type:: Other
Full Text:: INCOME STATISTICS FOR OREGON BY COUNTIES By N. D. Thomas, L. R. Breithaupt, and N. I. Nielsen June

ScholarsArchive@OSU

Petrogenesis of Luna 16 aluminous Mare basalts

Purification and characterization of R. meliloti RNA polymerase from wild type and mutant strains, and the role of the enzyme in the specificity of in vitro transcription of nitrogen fixation genes

The effects of re‐homogenization on plagioclase hosted melt inclusions

Phase equilibria constraints on liquid lines of descent generated by paired assimilation and fractional crystallization: Trace elements and SR and ND isotopes

LangeAmyCEOASPetrogenesisPlagioclase-Phyric.pdf

LangeAmyCEOASPetrogenesisPlagioclase-Phyric_SupportingInformation.zip

The petrogenesis of plagioclase-phyric basalts at mid-ocean ridges

Tahiti: Geochemical evolution of a French Polynesian volcano

Production and income statistics for specialty farm products, Oregon - 1939

Small fruits - 1940 : production and income statistics for Oregon by counties

Limit your search

Academic Affiliation

Advisor

Commencement Year

Committee Member

Conference Name

Conference Section/Track

Creator

Contributor

Date

Decade

Degree Field

Degree Level

Degree Name

File Format

Language

Non-Academic Affiliation

Peer Reviewed

Resource Type

Rights Statement

Subject

Search Constraints

Search Results

Limit your search