9 research outputs found
Petrological and geochemical properties of greek carbonate stones, associated with their physico-mechanical and aesthetic characteristics
Greece is considered amongst the worldâs top marble producers in the global carbonate ornamental stone market. Selected Greek carbonate ornamental stones considered in our study suite are characterized by their distinctive and in some cases unique appearance, having a significant impact on their commercial value. Their wide range of colour varieties and their physico-mechanical properties are closely related to their mineral assemblage, chemical constitution, petrographic properties, structural defects, which in turn depend highly upon their metamorphic/diagenetic grade and in some cases hydrothermal processes that affected them. This study endeavors to feature the petrographic, mineralogical and geochemical properties of the main Greek carbonate ornamental stones from selected localities and their by-product waste material used as aggregates. The documented data aims to serve a better understanding of the dynamic Greek marble industry by relating their mineral and chemical properties with their physico-mechanical and aesthetic characteristics. © 2020 by the authors. Licensee MDPI, Basel, Switzerland
Assessment of some indicators within an impact
A thorough presentation and discussion of principles for the selection and building of indicators was given in Chapter 4. Chapter 4 also discussed the role of different kinds of criteria for the selection or building of indicators. A procedure applicable for the selection or building of environmental indicators for transport was arrived at in section 4.4.2. The procedure, including the use of ten criteria listed in Table 25, is brought further in the present Chapter 5. This is done by presenting how the suggested procedure can be applied to seven of the chains of causalities described in Annex 6: direct toxicity of air pollutants (section 5.1), natural habitat fragmentation (section 5.2), non-renewable resource use (section 5.3), loss of cultural heritage due to land take (section 5.4), noise as annoyance to humans (section 5.5), greenhouse effect (section 5.6), and waste (section 5.7). The seven chains have been selected so as to â be of value for European-level policy makers â be of value for national government policy makers â be of value for regional planners and policy makers â be of value for researchers and other academics â be pedagogic â include causality chains that are qualitatively different â include chains that are well described and well known For three of the chains, the application of the different steps of the procedure has been outlined. For six of the chains, examples of existing indicators for a limited number of chain steps are presented and discussed. The chapter also illustrates how the procedure could be applied for the building of an indicator where there is a lack of indicators (section 5.4
Assessment of some indicators within an impact
A thorough presentation and discussion of principles for the selection and building of indicators was given in Chapter 4. Chapter 4 also discussed the role of different kinds of criteria for the selection or building of indicators. A procedure applicable for the selection or building of environmental indicators for
transport was arrived at in section 4.4.2. The procedure, including the use of ten criteria listed in Table 25, is brought further in the present Chapter 5. This is done by presenting how the suggested procedure can be applied to seven of the chains of causalities described in Annex 6: direct toxicity of air pollutants
(section 5.1), natural habitat fragmentation (section 5.2), non-renewable resource use (section 5.3), loss of cultural heritage due to land take (section 5.4), noise as annoyance to humans (section 5.5), greenhouse effect (section 5.6), and waste (section 5.7). The seven chains have been selected so as to
â be of value for European-level policy makers
â be of value for national government policy makers
â be of value for regional planners and policy makers
â be of value for researchers and other academics
â be pedagogic
â include causality chains that are qualitatively different
â include chains that are well described and well known
For three of the chains, the application of the different steps of the procedure has been outlined. For six of the chains, examples of existing indicators for a limited number of chain steps are presented and discussed. The chapter also illustrates how the procedure could be applied for the building of an indicator
where there is a lack of indicators (section 5.4)