نتایج جستجو برای: siliciclastic sequences
تعداد نتایج: 212703 فیلتر نتایج به سال:
The Mars Exploration Rover Opportunity has investigated the landing site in Eagle crater and the nearby plains within Meridiani Planum. The soils consist of fine-grained basaltic sand and a surface lag of hematite-rich spherules, spherule fragments, and other granules. Wind ripples are common. Underlying the thin soil layer, and exposed within small impact craters and troughs, are flat-lying se...
Introduction: The cattle tick Rhipicephalus spp. causes significant economic losses due to diseases in animals and human. Bm86 is a midgut protein and vaccine candidate, which its sequences among the isolates of Ripsephalus spp are geographically separated, variable, and are the main reason for reducing effectiveness, and subsequently, the failure of the recombinant vaccines. Method: In this bi...
Metasedimentary rock successions in Sierra Albarrana Group (SW Iberia Autochthonous Domain) were deposited during the Early Paleozoic influenced by evolution of a peri-Gondwanan active margin. Their geochemical composition indicates dominant contributions from felsic igneous sources and an upper continental crust provenance. The high mineralogical maturity, together with negative ?Nd(530), rang...
The outcropping Cretaceous siliciclastic sediments in the Al Bauga area in Northern Sudan reach a maximum thickness of about 30 meter. They rest with angular unconformity on tilted Precambrian basement rocks and are capped by Tertiary-Quaternary basalts forming a type of nonconformity. The sedimentary sequence was subdivided into three major units separated by two disconformities. The lower uni...
چکیده ندارد.
in this paper we introduce some new double sequence spaces using the orlicz function andexamine some properties of the resulting sequence spaces.
A ca. 600 m thick siliciclastic succession in northern Russia contains abundant and diverse microfossils that document early to middle Ediacaran deposition along the northeastern margin of the East European Platform. The Vychegda Formation is poorly exposed but is well documented by a core drilled in the Timan trough region (Kel’tminskaya-1 borehole). Vychegda siliciclastics lie unconformably a...
Introduction In Western Canada the application of CO2 injection for enhanced, ‘tertiary’ oil recovery is a relatively recent addition to the arsenal available to reservoir engineers. The first successful application of CO2 as a miscible fluid in Western Canada began in 1984 at Joffre Field, a Cretaceous marine siliciclastic reservoir in southern Alberta. A significant portion of the remaining p...
Abstract The Anti-Atlas contains a thick, volcanic-free Ordovician succession that originally deposited in passive-margin basin. Three main sedimentary packages are bounded by major unconformities: (i) the Tremadocian–Floian Lower Fezouata and Upper formations, which unconformably overlie palaeorelief of Cambrian rifting volcanosedimentary complexes, subsequently topped Dapingian paraconformabl...
Early Permian fossil localities, including numerous tracksites, in the southern Robledo Mountains of Dona Ana County, New Mexico, cover an area of approximately 20 km2 . Lower Permian strata exposed here belong to four formations of the Hueco Group (ascend ing order): Shalem Colony, Community Pit, Robledo Mountains and Apache Da m Formations. With the exception of the Robledo Mountains Formatio...
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