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11	Geometallurgical resource assessment for tailings storage facilities Blannin, Rosie 15 November 2024 (has links) Tailings are the fine-grained residues produced by processing operations, and are commonly retain residual contents of valuable and critical metals. Re-mining of tailings storage facilities (TSF) could play a crucial role in alleviating environmental problems associated with mine wastes, while recovering residual value and decreasing the volumes of tailings to be stored. Resource modelling of TSFs is complicated by their heterogeneity, which results from the sedimentary-style deposition of tailings, as well as post-depositional processes like weathering. Tailings particles are sorted based on size and density (i.e., mineralogy), generating strong systematic trends in geochemistry across a TSF. As such, TSFs should not be treated the same way as primary deposits; different sampling, spatial modelling, and processing methods may be needed, as well as adaptions to resource and reserve reporting codes. This thesis provides recommendations for the resource and reserve estimation of TSFs. To achieve this, a series of methods were developed, from best-practise sampling of TSFs for resource estimation, through to geostatistical modelling of a TSF for grade/tonnage estimation with corresponding uncertainties, to geometallurgical modelling using particle-based data. info:eu-repo/classification/ddc/550 ddc:550 Abraum Abraumhalde Folgenutzung Erz Erzbergbau Wertstoff Berge <Bergbau> Spülfeld Absetzen Erzaufbereitung Geochemie Bergeteich Aufbereitung Berechnung Flotation Geochemische Analyse Geochemische Prospektion Mineralischer Rohstoff Räumliche Verteilung Räumliche Statistik Rohstoffreserve Geostatistik Probenahme Stichprobe
12	Determinants of population structure in the world's smallest primate, <i>Microcebus berthae</i>, across its global range in Menabe Central, Western Madagascar / Determinanten der räumlichen Populationsstruktur des kleinsten bekannten Primaten, <i>Microcebus berthae</i>, in dessen globalem Verbreitungsgebiet Menabe Central, West-Madagaskar Schäffler, Livia 16 December 2011 (has links) No description available. 570 Biowissenschaften Biologie räumliche Verteilung ökologische Struktur Populationsdynamik Koexistenz Gemeinschaft nahverwandte Arten interspezifische Interaktion Konkurrenz Prädation Mausmaki Artenschutz Biodiversität distribution ecological structure population dynamics species assemblage congener coexistence interspecific interaction competition predation <i>Microcebus</i> biodiversity conservation 42.65 Tiergeographie Tierökologie 42.84 Mammalia Primatenkunde 43.31 Naturschutz Artenschutz 43.70 Entwicklungsländer und Umwelt Artenschutz WXR 000 Tierökologie WXU 000 Populationsdynamik Tiergeographie WXU 100 Faunen

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Geometallurgical resource assessment for tailings storage facilities