Principles of Geochemical Prospecting (Geological Survey Bulletin 1000_F)

Description: One illustration and thirteen tables. From the introduction: ''Geochemical prospecting for minerals, as defined by common usage, includes any method of mineral exploration based on systematic measurement of one of more chemical properties of a naturally occurring material. The chemical property measured is most commonly the trace content of some element of group of elements; the naturally occurring material may be rock, soil, gossan, glacial debris, vegetation, stream sediment, or water. The purpose of the measurements is the discovery of a geochemical 'anomaly' or area where the chemical pattern indicates the presence of ore in the vicinity. This report is intended primarily as a review of the most important geochemical principles involved in the evolution of geochemical anomalies. A section has also been included on the historical development and application of geochemical methods of prospecting.'' BINDNG/CONDITION: paper covers, center-stapled format; two owner's name (writ small) on the front cover, otherwise in Very Good condition. bibliography, index. 8vo (about 9 inches tall). paginatioin: 225-355. Paperbound: center-stapled format.…