Observations on the factors influencing stability of building stones following contour scaling: a case study of oolitic limestones from Budapest, Hungary

2003 ◽  
Vol 38 (9-10) ◽  
pp. 1173-1183 ◽  
Author(s):  
B.J. Smith ◽  
A. Török ◽  
J.J. McAlister ◽  
Y. Megarry
Keyword(s):  
Building Stones ◽  
Factors Influencing

Fingerprinting the provenance of building stones: a case study on the Louvigné and Lanhélin granitic rocks (Armorican massif, France)

2014 ◽  
Vol 185 (1) ◽  
pp. 13-31 ◽  
Author(s):  
Claudine Malfilatre ◽  
Erwan Hallot ◽  
Philippe Boulvais ◽  
Marc Poujol ◽  
Annick Chauvin ◽  
...  
Keyword(s):  
Building Stone ◽  
Granitic Rocks ◽  
Magnetic Characteristics ◽  
Building Stones ◽  
Intrinsic Variability ◽  
Geological Unit ◽  
Qualitative Variables ◽  
Identity Cards ◽  
Armorican Massif

Abstract Two examples of granitic stones from Brittany (western France) commercialized under the names of “gris-bleu de Louvigné” and “bleu de Lanhélin” were characterized in order to explore how the provenance of a building stone can be traced back with a maximum of confidence. For this purpose, petrographical, geochemical and magnetic characteristics, representing more than 70 quantitative and qualitative variables, were compiled for a total of 32 samples. We have defined two reference populations for these building stones and have extracted their discriminative characteristics. We have then compared four randomly selected samples and two foreign commercial counterparts of these stones to the reference populations. Discriminative variables differ from one case of comparison to the other, which indicates that a combination of various tools and variables will be generally required to unequivocally fingerprint the origin of a given granitic stone. Where several quarries are mining a single geological unit within a composite intrusion, the provenance of a granitic rock can be defined at the scale of the intrusion. In addition, stones coming from two different intrusions from the same batholith can be distinguished. We conclude that the provenance of any granitic building stone is identifiable, especially if the intrinsic variability of a population of samples representative of that stone has been previously circumscribed. This study underlines that the compilation of databases for building stone identity cards is an essential first step toward the creation of official labels guaranteeing stone provenances.

The Future of the Nigerian Agricultural Industries: A Case Study of Oil Palm Production in Edo State

2013 ◽  
Vol 824 ◽  
pp. 561-567 ◽  
Author(s):  
U.J. Udosen ◽  
A.P. Ugboya
Keyword(s):  
Growth Rate ◽  
Oil Palm ◽  
Frequency Distributions ◽  
Factors Influencing ◽  
The Future ◽  
Edo State ◽  
Agricultural Industries ◽  
Fresh Fruit Bunches ◽  
Planting Materials

This study analyzes oil palm production from 2001 - 2008 in Edo State, with a view of establishing the future of Nigerian Agricultural oil palm industries. The specific objectives were to identify and quantify the factors influencing the production of oil palm, reveal the constraints to the production of oil palm; analyze the viability of oil palm production as an investment and predict the future of oil palm enterprise in Edo State. Three Local Government Areas of high oil palm concentration in Edo State were covered. Ninety selected oil palm producers from nine villages in the study area were selected. Frequency distributions and multiple regression analysis were used to analyze the results. The results showed that for the period under review (2001 - 2008) on a per hectare basis, seedlings cost, and labour cost were significant inputs, positively influencing the production of oil palm in the Edo State. A growth rate of 6.2% and 23.5% were projected for oil palm with reference to palm oil and fresh fruit bunches (FFB), respectively, up to the year 2020, an indication that oil palm production in the State is viable and the future is bright. The study revealed that inadequate storage facilities, poor planting materials and lack of government assistance, among others, are major bottlenecks in oil palm production in Edo State. However, since oil palm production in Edo State is viable, it is an indication that the future of Nigerian Agricultural Industries is bright.

scholarly journals Critical Factors Influencing CO2 Capture Cost, a Case Study

2014 ◽  
Vol 63 ◽  
pp. 7298-7306 ◽  
Author(s):  
Ragnhild Skagestad ◽  
Agnieszka Lach ◽  
Nils Røkke ◽  
Nils Henrik Eldrup
Keyword(s):  
Co2 Capture ◽  
Critical Factors ◽  
Factors Influencing
Sign in / Sign up

Export Citation Format

Share Document