Date of Award:

5-1958

Document Type:

Thesis

Degree Name:

Master of Science (MS)

Department:

Plants, Soils, and Climate

Department name when degree awarded

Soil Classification

Committee Chair(s)

LeMoyne Wilson

Committee

LeMoyne Wilson

Committee

Raymond W. Miller

Abstract

In many parts of the world soils have been found that have apparently been formed under climatic conditions that no longer exist. In many places in northern Utah in areas associated with ancient Lake Bonneville, deep soils, fine-textured and non-calcareous, have been observed immediately above the highest shore line of the ancient lake. These soils have essentially no free carbonates to depths ranging from 4 to 15 feet, even though they exist on relatively steep slopes. In Davis and Utah Counties, soils having these characteristics have been given the tentative series name, Manila.

Soils studied for this thesis include one series tentatively referred to as Manila and which is located above the highest level of the ancient Lake Bonneville and one series, Avon, which is located on lake sediments below the highest level of the lake. The third profile studied, the Paradise soil, occurs approximately at or just below the old lake level.

A study of these soils should aid in understanding their genesis. The findings should facilitate the correct and useful classification of such soils in present and future soil surveys.

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