Heavy mineral ratios of Sangamon weathering profiles in Illinois /

Bibliography: p. 10.

A survey of weathering processes and products.

Bibliography: p.90-95.

Weathering winter.

Cover title.

Geochemistry of gold in the weathering cycle : a study of the solubilization of gold by the formation of chloride, bromide, iodide, thiosulfate, thiocyanide, and cyanide gold complexes and related topics /

Bibliography: p. 75-80.

A treatise on rocks, rock-weathering and soils /

Includes bibliographical references and index.