Geobotany in mineral exploration; An introduction to geobotany in mineral exploration; Plant communities as indicators of mineralization; Indicator plants; Morphological and mutational changes induced by mineralization; Remote sensing of vegetation; An assessment of geobotanical exploration methods; Geozoology in mineral exploration; Introduction to geozoology; Land mammals as indicators of mineralization; Birds and fish as indicators of mineralization; Insects as indicators of mineralization; Biogeochemistry in mineral exploration; An introduction to biogeochemical prospecting; Soils and their formation; Accumulation of elements by plants; Biogeochemical parameters and their significance for mineral prospecting; A field guide to biogeochemical prospecting; Alternative sample types in biogeochemical prospecting; Chemical analysis of plant material; Statistical interpretation of data from biological prospecting methods; Aerial biogeochemical prospecting; Biogeochemical prospecting in the herbarium; Biogeochemical prospecting in retrospect; An element-by-element listing of biological prospecting.

This is the completely revised edition of a book which was published in 1978 and, such was its popularity, was sold out within two years. It was described as ``An excellent compilation and condensation of a vast field of literature and experience in economic geology. Clear illustrations, charts and tables punctuate the text material very nicely... Valuable for all economic geologists and resource developers.'' (Choice).The material is illustrated by 215 text figures and 76 tables, and is presented in two parts. The first part covers the geological background of the genesis of mineral deposits as a clue to new discoveries, and the methods of geological, geochemical and geophysical prospecting. The second part concerns sampling, documentation and computation of ore reserves and economic assessment of mineral deposits. This new edition has been very extensively revised and brought up to date. This holds true particularly for the chapters on geochemical and geophysical methods, the use of photo-geology and satellite imagery, oil and gas prospecting, exploration of underwater minerals, the application of the principles of global tectonics in prospecting for deposits, and the evaluation of reserves. These new or thoroughly revised chapters comprise almost half of the entire text.

Developments in Economic Geology, 16: Geochemical Prospecting for Thorium and Uranium Deposits focuses on the analysis of various geochemical methods applicable in the search for all types of thorium and uranium deposits. The publication first ponders on the general chemistry and geochemistry of thorium and uranium, deposits of thorium and uranium and their indicator elements, and geochemical prospecting for thorium and uranium. Discussions focus on radiation surveys, selection of areas, primary mineralization, supergene oxidation, and secondary enrichment of endogenic thorium and uranium deposits, and equilibrium in the natural radioactive series. The book then ponders on lithochemical, pedochemical, hydrochemical, and biogeochemical surveys of the geochemical prospecting for thorium and uranium. Topics include heavy and light mineral surveys of stream, river, pond, and lake sediments, detailed litochemical surveys utilizing primary halos, and case histories. The text takes a look at sampling procedures and analytical methods for estimating thorium and uranium and miscellaneous methods and atmochemical surveys on the geochemical prospecting for thorium and uranium, including isotopic methods, remote sensing and geothermal methods, and liquid inclusion and thermoluminescent methods. The book is a valuable source of data for researchers wanting to explore geochemical prospecting for thorium and uranium deposits.

This book discusses potential mineral belts in various geotectonic regions around the globe, with a particular focus on concealed deposits, in order to highlight new areas for geochemical exploration and modelling. In recent years, the application of statistical methods using qualitative and, wherever possible, quantitative earth science data has become increasingly common for the evaluation of both offshore and terrestrial mineral resources. The book examines these approaches and provides examples from India, which are also applicable to deposits around the world, particularly those in South and South East Asia. The main objective of geochemical exploration and modelling is to present the geometry of the deposit in three dimensions. As such, the book describes the various conventional and non-conventional techniques of exploration geochemistry, especially in the context of concealed terrestrial and offshore mineral deposits. It serves as a guide for field geologists, geochemists, students, research scholars and scientists interested in earth science for the exploration of concealed mineral deposits and evaluation of their resources.

Ever since the industrial revolution, large numbers of environmentally hazardous materials are in troduced into the global environment annually; a list of all substances which are at present re garded as environmentally hazardous might contain thousands of compounds, and new substan ces are still being added. Several major activities are necessary of adequately ensure the protec tion of human health and the environment from the often subtle effects of these materials. These activities include toxicological and ecological research, control technology development, the pro mulgation of regulatory guidelines and standards, and the monitoring of environmental materials and specimen banking. In the absence of effective monitoring environmental materials and spe cimen banking, the detection of serious environmental contamination from pollutants may occur only after critical damage has been done. Environmental problems are independent of national boundaries and international collaborative programmes should be encouraged. Sponsoring organisations and other international and national bodies should encourage monitoring and specimen bank programmes and develop harmonised sy stems for data acquisition and evaluation. An international pilot programme of monitoring and specimen banking is needed and is technically feasible. The conclusions and recommendations, for both implementation and research, should be of inte rest to other international and national bodies in addition to the three organisation sponsoring this International Workshop. Nevertheless this joint sponsorship should help to assure that the re sulting conclusions and recommendations will have a worldwide audience and that effective coor dination of existing programmes will be possible.