Search results for " mine"
showing 10 items of 747 documents
Importance des variations latérales discrètes dans les apports détritiques, observées dans des faciès de rampe sédimentaire riches en matière organiq…
2017
17 pages; International audience; We studied a potential petroleum source rock deposited in a clastic-dominated ramp environment: the Argiles de Châtillon Formation (Kimmeridgian-Tithonian, Boulonnais area, northern France). The formation was deposited along a proximal-distal gradient on this ramp affected by synsedimentary fault movements. A sedimentological, mineralogical and geochemical study was conducted to decipher the distribution patterns of sedimentary parameters along such a depth increase over the ramp. It comes out that smectite distribution unexpectedly mimics the lateral depth evolution despite the good floatability of the mineral. It is also observed that the Argiles de Châti…
Ordering kinetics in synthetic Mg(Al,Fe3+)2O4 spinels: Quantitative elucidation of the whole Al-Mg-Fe partitioning, rate constants, activation energi…
2014
A novel procedure, based on the application of the kinetics simulator Gepasi, has been successfully applied for modeling the cation ordering process in two synthetic Mg(Al2-yFe3+y)O4 spinels (y~ 0.39 and 0.54, samples F39 and F54, respectively). The kinetic profiles suggested a two-stage mechanism, with rapid inter-site exchange of Fe3+ with Mg followed by slow exchange of Al with Mg. The trial to apply the classical approaches, based on the explicit solutions of the differential equations corresponding to single-cation (Sha-Chappel model) or two-cation (Müller model) exchange reactions, proved not feasible in the whole time range, thus implying a lack of information about the exchange proc…
Analysis of socio-economic impact of Konkola Copper Mine (KCM) on the mining community in Zambia : a case study of Chingola Town
2008
This thesis focuses on the impact of Konkola Copper Mine (KCM). This company is a Multinational Mining Corporation. It is based in Chingola town in Zambia. The study seeks to establish whether the Mining company is contributing to the development of the town or not. It also examines the development agreements which the company entered into with government and show how this commitment has affected the company’s contributions to the local community. Specifically, the study seeks to critically examine the development agreements with a view to establishing whether these agreements emphasized strict observance of corporate social responsibilities or not The methodological approach used in this s…
La explotación minera de la Sierra de Cartagena (1840-1919)
1966
Measure of a limestone weathering degree using Laser Scanner.
2013
The weathering degree of the building materials and natural stones is generally quantified as the decrement of some mechanical features that can be measured experimentally by means of compressive tests or point load tests in the laboratory or Schmidt hammer tests carried out in situ. Such destructive or damaging tests are unacceptable in case of cultural heritage since even small amounts of damage must be avoided. This work shows a correlation between Schmidt hammer rebound values and the reflectivity that is detected by means of terrestrial scanner laser; therefore it allows assessing the weathering degree of buildings or stones in situ. The results demonstrate that such an investigation c…
Lattuga in Sicilia
2013
Lattuga in Sicilia, diffusione e gestione della concimazione azotata.
La ‹‹bellezza del sapore››: i sorbetti di Leopardi
2008
The essay analyzes the Leopardi reflections on the theme of taste present in the Zibaldone and reviews the occurrences of the theme of food in Leopardi's work, focusing on its value and significance.
Significant liver fibrosis assessed using liver transient elastography is independently associated with low bone mineral density in patients with non…
2017
Background Metabolic bone disorders frequently occur in patients with chronic liver disease; however, the association between liver fibrosis and bone mineral density in patients with non-alcoholic fatty liver disease (NAFLD) is unclear. Methods This is a cross-sectional analysis of 231 asymptomatic subjects (160 women, 61.6 years old) from a university hospital setting, between February 2012 and December 2014. Bone mineral density (BMD) was measured at the lumbar spine, femur neck, and total hip using dual-energy X-ray absorptiometry (DXA). Liver fibrosis and steatosis were assessed using transient elastography. Results Among a total of 231 individuals, 129 subjects (55.8%) had NAFLD. BMDs …
La détermination de la résidence habituelle de l'enfant dans l'application du Protocole de La Haye du 23 novembre 2007 sur la loi applicable aux obli…
2023
(CJUE, 12 mai 2022, aff. C-644/20, D. actu., 30 mai 2022, obs. F. Mélin ; Droit de la famille no 7-8, juill. 2022, comm. 116, commentaire A. Devers)
Rileggere l'identità. L'operazione Louvre Lens nel Nord Pas de Calais
2015
Il paper propone una lettura del progetto per il Louvre a Lens alla luce del tema locale/globale, tentando di rintracciare la dimensione identitaria presente all'interno di un progetto che si rivolge, per sua natura, all'attenzione mondiale. Il testo analizza i processi che hanno permesso al progetto di essere appoggiato dalla popolazione locale, per il suo porsi come opportunità di sviluppo economico e sociale e per la sua capacità di rileggere, attraverso il linguaggio contemporaneo, i caratteri del paesaggio minerario francese.