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Walter L. Pohl: Economic geology, principles and practice: metals, minerals, coal and hydrocarbons - an introduction to formation and sustainable development of mineral deposits (2nd revised edition): Schweizerbart Science Publishers, Stuttgart, 2020, hard-cover (ISBN 978-3-510-65441-3, Price 94.00 EUR), soft cover (ISBN 978-3-510-65435-2, Price 79.00 EUR) and ebook (ISBN 978-3-510-65436-9) I Economic Geology, Principles and Practice i is a revised, expanded and updated version of Walter Pohl's 2011 original, which was the English-language successor to five editions published in German. The book follows the same basic format as the first edition, with Part I devoted to the genesis of metal deposits and their metallogeny, followed by the economic geology of 28 individual or combinations of metals. [Extracted from the article]

Selection of modern varieties has typically been performed in standardized, high fertility systems with a primary focus on yield. This could have contributed to the loss of plant genes associated with efficient nutrient acquisition strategies and adaptation to soil-related biotic and abiotic stresses if such adaptive strategies incurred a cost to the plant that compromised yield. Furthermore, beneficial interactions between plants and associated soil organisms may have been made obsolete by the provision of nutrients in high quantity and in readily plant available forms. A review of evidence from studies comparing older traditional varieties to modern high yielding varieties indeed showed that this has been the case. Given the necessity to use scarce and increasingly costly fertilizer inputs more efficiently while also raising productivity on poorer soils, it will be crucial to reintroduce desirable rhizosphere-related traits into elite cultivars. Traits that offer possibilities for improving nutrient acquisition capacity, plant–microbe interaction s and tolerance to abiotic and biotic soil stresses in modern varieties were reviewed. Despite the considerable effort devoted to the identification of suitable donors and of genetic factors associated with these beneficial traits, progress in developing improved varieties has been slow and has so far largely been confined to modifications of traditional breeding procedures. Modern molecular tools have only very recently started to play a rather small role. The few successful cases reviewed in this paper have shown that novel breeding approaches using molecular tools do work in principle. When successful, they involved close collaboration between breeders and scientists conducting basic research, and confirmation of phenotypes in field tests as a ‘reality check’. We concluded that for novel molecular approaches to make a significant contribution to breeding for rhizosphere related traits it will be essential to narrow the gap between basic sciences and applied breeding through more interdisciplinary research that addresses rather than avoids the complexity of plant–soil interactions. [ABSTRACT FROM AUTHOR]

Plant-assisted bioremediation or phytoremediation holds promise for in situ treatment of polluted soils. Enhancement of phytoremediation processes requires a sound understanding of the complex interactions in the rhizosphere. Evaluation of the current literature suggests that pollutant bioavailability in the rhizosphere of phytoremediation crops is decisive for designing phytoremediation technologies with improved, predictable remedial success. For phytoextraction, emphasis should be put on improved characterisation of the bioavailable metal pools and the kinetics of resupply from less available fractions to support decision making on the applicability of this technology to a given site. Limited pollutant bioavailability may be overcome by the design of plant–microbial consortia that are capable of mobilising metals/metalloids by modification of rhizosphere pH (e.g. by using Alnus sp. as co-cropping component) and ligand exudation, or enhancing bioavailability of organic pollutants by the release of biosurfactants. Apart from limited pollutant bioavailability, the lack of competitiveness of inoculated microbial strains (in particular degraders) in field conditions appears to be another major obstacle. Selecting/engineering of plant–microbial pairs where the competitiveness of the microbial partner is enhanced through a “nutritional bias” caused by exudates exclusively or primarily available to this partner (as known from the “opine concept”) may open new horizons for rhizodegradation of organically polluted soils. The complexity and heterogeneity of multiply polluted “real world” soils will require the design of integrated approaches of rhizosphere management, e.g. by combining co-cropping of phytoextraction and rhizodegradation crops, inoculation of microorganisms and soil management. An improved understanding of the rhizosphere will help to translate the results of simplified bench scale and pot experiments to the full complexity and heterogeneity of field applications. [ABSTRACT FROM AUTHOR]

Peter Laznicka 2019 B Metals are where you find them-Geologist's travels through six continents b . 528 pages, 11 maps, 184 plates, 1034 photos. "A good geologist is a geologist who has seen much". Peter Laznicka is not a mineral hunter but a rockhound in the strict sense placing emphasis on the ore, a rock consisting of the ore mineral and the gangue mineral. [Extracted from the article]

Reviews the book "Economic Geology and Geotectonics," edited by D. H. Tarling.

The article reviews the book "Economic Geology: Principles and Practice: Metals, Minerals, Coal and Hydrocarbons--Introduction to Formation and Sustainable Exploitation of Mineral Deposits" by Walter L. Pohl.

The article reviews the book "Metals & Society: An Introduction to Economic Geology," by Nicholas Arndt and Clement Canino.

The article reviews the book "Scientists and Swindlers: Consulting on Coal and Oil in America, 1820-1890," by Paul Lucier, part of the Johns Hopkins Studies in the History of Technology book series.

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The article reviews the book "Economic Geology: Principles and Practice: Metals, Minerals, Coal and Hydrocarbons: Introduction to Formation and Sustainable Exploitation of Mineral Deposits," by Walter L. Pohl.

The article reviews the book "Economic Evaluations in Exploration," 2nd edition, by F. W. Wellmer, M. Dalheimer and M. Wagner.

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