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Filtering by: Creator Hanna, Erika L. Advisor Harward, M. E. Resource Type Dissertation

Ratio of ion activities in dilute equilibrium solutions from soils as related to several chemical properties and lime requirement

Creator:

Webster, Gordon Ritchie

Resource Type:

Dissertation

Full Text:

(Lloyd) and iervi11e Soils Red lull (location) L5 Fairbrid(c and Cherialnus L.5 il1amette
Formation and stability of Al, Fe, and Mg interlayers in montmorillonite and vermiculite

Creator:

Carstea, Dumitru Dumitru

Abstract:

The effects of pH and time on the formation of hydroxy-Al, Fe, and Mg interlayer were compared for montmorillonite and vermiculite. The stability of interlayers was evaluated by sequentially increasing the severity of dissolution treatments and by subjecting the inter-layers to an HC1 treatment. The interlayer formation and stability were...

Resource Type:

Dissertation

Full Text:

17. .0 0 cps 16 cps I l e e l i I t l e e 13.0 ps 2 cps 4 7 5 Degrees 2 0 8
Mineralogical and chemical characteristics of western Oregon Andic soils

Creator:

Franklin, William Talbert

Abstract:

A study was conducted to determine the mineralogy and chemical properties of "Ando-like" western Oregon soils. The samples were collected from 13 sites which formed mainly from basaltic rocks, a contact metamorphic rock, sedimentary rocks, and alluvium derived from sedimentary rock and from volcanic rock. All samples contained small amounts...

Resource Type:

Dissertation

Full Text:

tufface- ous siltstones and shales with thin glauconitic beds resting upo_-L the lower member of the