Fischer assay oil yield (wt%), Rock-Eval parameters, total organic carbon (TOC, wt%) and sulfur content were determined and proximate analysis was performed at the Key-Lab for Oil Shale and Paragenetic
Minerals of Jilin Province, Changchun, China.
The diagenetic fabric of the formation has been elucidated and on that basis paragenetic
sequence has been established.
There is no doubt that further petrological, geochemical and geochronological data are necessary for a better understanding of the mechanism of nucleation and two- step growth of sector- and sigmoidal-zoned garnet during the tectono-metamorphic evolution of the San Lorenzo Schists, which is also very important to develop a quantitative understanding of orogenic processes, determining metamorphic PT conditions by means of mineralogical geothermobarometry, electron probe microanalysis of coexisting minerals, and paragenetic
and thermodynamic analysis of mineral equilibria.
Conclusions: Overall the demonstration/manifestation and variability of fertility traits of boars during reproductive exploitation is influenced by various genetic and paragenetic
The igneous bodies, which have economic concentrations of either genetic or paragenetic
chemical elements, generally show specific geochemical patterns (Beus, 1968), the identification of which potentially distinguishes metalliferous geological units from barren types.
Presently the scope of auxlogy scientific knowledge encompasses not only issues concerning genetic conditions, paragenetic
conditions and environmental processes of personal development but also health promotion and methods of controlling changes taking place in ontogenesis (Kopczynska-Sikorska, 2004; Kornafel, 1978; Baranski, Bogdanowicz, Lomnicki, 1938).
Therefore, the dating of dolomitization events and the paragenetic
sequence of diagenetic processes is complicated and we are able to propose only some preliminary interpretations of the diagenetic setting of the distinguished dolomite types and authigenic precipitations (Fig.
These studies focused mostly on description of the mineral forms and on paragenetic
Pedogeochemical accumulating and paragenetic
associations in the industrial area of irmunai district in Vilnius, Aplinkos ininerija [Environmental Engineering] 9(3): 176-183.
Larsen (1942b) made a detailed study of the paragenetic
relationships in the evolution of variscite nodules in the Clay Canyon deposit, identifying six stages: (1) variscite formation, followed by fracturing and the introduction of thin black quartz veinlets; (2) banded minerals, primarily crandallite, millisite and wardite, replacing and enclosing variscite while opening up cavities through shrinkage (some variscite nodules were entirely replaced by crandallite); (3) formation of free-growing crystals of gordonite, englishite, montgomeryite and probably overite and kolbeckite in cavities; (4) a minor reversion to crandallite formation from solution as isolated oolites; (5) apatite-group minerals; and finally (6) the limonitic phase (limonite is not present inside any of the nodules).
The course deals in preparation of polished ore sections, principals of reflected light polarizing microscope, optical properties of ore minerals, common ore texture and their significance, and paragenetic
associations are characteristic, as well as the mineral form in which the valuable elements occur.