Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 4 of 4 for “"galena (PbS)"”.
-
The electronic structure of galena and hematite surfaces: applications to the interpretations of STM images, XPS spectra and heterogeneous surface reactions
… scanning tunneling spectroscopy (STS) spectra of galena (PbS) and hematite (a-Fe203) were calculated using ab-initio methods in order to interpret experimental images and spectra that were taken in previous studies. These calculations have helped to understand which states of the mineral surfaces …
-
Tracing the Distribution of Heavy Metals in Sediments of the Pearl River Estuary
… have then been further enriched by Galena (PbS) and Sphalerite (ZnS) mining operations, atmospheric deposition from fossil fuel burning and some point sources associated with urban and industrial waste. Temporal analysis of heavy metals and stable Pb isotope variability again …
-
Geodynamic Evolution of the Aegean Back-arc and its Implication for Associated Precious and Base Metal Mineralization
… and isotopic analyses (Pb, Sr, δ34S and δ18O) of galena (PbS) and ore-associated hydrothermal barite (BaSO4). New galena Pb isotope data complemented by Pb isotope data of galena from the literature exhibit a range of isotopic ratios, with a resolvable geologic pattern. Galena from deposits in the …
-
Influence of grain size, morphology and aggregation on galena dissolution
The acidic, non-oxidative dissolution of galena nanocrystals has been studied using both microscopic and wet-chemical methods. The effects of particle size, shape, aggregation state, and grain proximity on dissolution rates were investigated. Nearly monodisperse galena nanocrystals with an average …