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Filtering by: Advisor Enlows, Harold E. Degree Field Geology Degree Name Doctor of Philosophy (Ph.D.)

Clay mineralogy and sedimentary petrology of the cretaceous Hudspeth formation, Mitchell, Oregon

Creator:

Jarman, Clara Birchak

Resource Type:

Dissertation

Full Text:

: Harold E. Enlows The Cretaceous rocks near Mitchell, Oregon consist of two inter- tonguing formations
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
Statigraphy, petrology, and mineralogy of the Colestin Formation in southwest Oregon and northern California

Creator:

Carlton, Richard W.

Resource Type:

Dissertation
Geology of the rattlesnake and older ignimbrites in the Paulina Basin and adjacent area, central Oregon

Creator:

Davenport, Ronald Edmond

Resource Type:

Dissertation
Petrology and sedimentation of cretaceous and eocene rocks in the Medford-Ashland region, southwestern Oregon

Creator:

McKnight, Brian Keith

Resource Type:

Dissertation
Petrology of selected volcanic rocks of the Harney Basin, Oregon

Creator:

Parker, Donald James

Abstract:

The volcanic rocks of the Harney Basin comprise a bimodal assemblage of rhyolites (SiO₂ greater than 72%) and basalts (SiO₂ less than 52%). Tholeiitic basalts account for 15 rocks analyzed and alkalic basalts for three. Most basalts contain phenocrysts of olivine and plagioclase. Pyroxene phenocrysts were not found. Rhyolite flows...

Resource Type:

Dissertation
Sedimentary petrology of some tertiary formations, Upper Nehalem River Basin, Oregon

Creator:

Van Atta, Robert O.

Abstract:

The southern half of the upper Nehalem River basin contains the most complete section of lower to middle Tertiary marine sedimentary and volcanic rocks in northern Oregon. Determination of stratigraphic relationships of six formations, and their depositional environments and provenance is the chief objective of this paper. More than 75...

Resource Type:

Dissertation