نتایج جستجو برای: siliciclastic sequences
تعداد نتایج: 212703 فیلتر نتایج به سال:
X-ray diffraction mineralogical analysis of geological sequences is a well-established procedure in both academia and industry, rendering large volume data short-analytical time. Yet, standard treatment resulting interpretations present limitations related to the inherent complexities natural materials (e.g. compositional variety, structural ordering), are often time consuming focussed on very ...
The Portofino Conglomerate (PC) cropping out in the Eastern Liguria is an approximately 500 m thick, very gently folded succession mainly composed of poorly bedded and mostly matrix-supported conglomerates. It stratigraphically rests on Helminthoid Flysch (UA3) thrusted onto Antola Unit. We vertically distinguished three ruditic litho/petrofacies: (i) Paraggi (fP) with carbonate clasts from suc...
Compressed organic-walled microfossils attributable to five filamentous taxa, and ten coccoidal eight, (taxa originally spheroidal forms and two originally ellipsoidal, colonial forms), all having long time-ranges in the Proterozoic, have been identified in fine-grained siliciclastic sediments in cores from four bore holes cutting subsurface equivalents of the Mesoproterozoic Conselheiro Mata G...
Groundwater environments provide habitats for diverse microbial communities, and although Archaea usually represent a minor fraction of communities, they are involved in key biogeochemical cycles. We analysed the archaeal diversity within a mixed carbonate-rock/siliciclastic-rock aquifer system, vertically from surface soils to subsurface groundwater including aquifer and aquitard rocks. Archae...
in this paper we introduce entire sequence spaces defined by a sequence of modulus functions . we study some topological properties of these spaces and prove some inclusion relations.
as an aromatic and colorful plant of substantive taste, saffron (crocus sativus l.) owes such properties of matter to growing class of the secondary metabolites derived from the carotenoids, apocarotenoids. regarding the critical role of micrornas in secondary metabolic synthesis and the limited number of identified mirnas in c. sativus, on the other hand, one may see the point how the characte...
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