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GeologyScience Repository: Recent submissions
Now showing items 401-420 of 43223
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(2006)The literature on placer formation processes within fluvial systems is widespread and ranges between detailed laboratory studies of the hydrodynamic segregation processes through to the intuitive interpretation of the ...
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(2006)A revision of thelodont scales from the Lower Devonian of the Iberian Chains enables their grouping into two taxa: Turinia pagei and T. nachoi sp. nov. These taxa are clearly distinguishable by morphological and histological ...
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(2006)A study of the Badenian (Middle Miocene) marine deposits of Hungary yielded a rich bryozoan fauna of 238 species comprising 59 cyclostomes, 176 cheilostomes, and 3 ctenostomes. Six palaeobiogeographic groups have been ...
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(2006)Temporal oceanographic changes based on mid- and late Holocene marine diatom floras from the Faeroe Islands region have been studied. The four studied coring sites are located in the Skalafjord and a more open-ocean ...
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(2006)A set of 77 diamond crystals from the Los Coquitos placer on the Guaniamo River in Bolivar State, Venezuela, has been comprehensively studied and compared to previously studied diamond from the Quebrada Grande kimberlite ...
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(2006)A 28-m-long section situated on the coast of the Arctic Ocean, Russia (74°N, 113°E) was extensively sampled primarily for the purpose of magnetostratigraphic investigations across the Jurassic/Cretaceous boundary. The ...
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(2006)Raman and infrared spectroscopic data at ambient and high pressures were used to compute the lattice contribution to the heat capacities and entropies of six endmember garnets: pyrope, almandine, spessartine, grossular, ...
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(2006)The world-famous "Pesciara di Bolca" Fossil-Lagerstätte has been examined in its palaeontological and sedimentological aspects. A re-examination of the co-occurring age-diagnostic larger foraminifers (Alveolina and Nummulites) ...
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(2006)Neodymium isotope data obtained from conodonts collected in Morocco and Poland attest a geochemical decoupling of seawater in the Variscan realm during the Late Devonian. The water masses on the shelves were characterized ...
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(2006)Marine localities on the west European shelf have been studied to reconstruct the nearshore palaeoceanography of the last two millennia. The sites form a transect from the Iberian margin northeastward via Scotland to western ...
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(2006)In this study we employ the TRIFFID (Top-down Representation of Interactive Flora and Foliage Including Dynamics) Dynamic Global Vegetation Model (DGVM) and the Hadley Centre Atmospheric General Circulation Model version ...
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(2006)The Paleoproterozoic Sioux Basin and the Baraboo, Barron, Flambeau, McCaslin, and Waterloo quartzites in northcentral USA are all supermature quartz arenites that are among the world's oldest redbeds. These quartzites were ...
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(2006)The crystal structure of kirkiite has been solved using single-crystal data (MoKα X-ray diffraction, CCD area detector) to the conventional R-factor R1 = 0.069. It crystallizes in space group P21/m, with a 8.621(4), b ...
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(2006)The origin of regional sedimentary basins is being investigated by the ESTRID project (Explosion Seismic Transects around a Rift In Denmark). This project investigates the mechanisms of the formation of wide, regional ...
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(2006)Ammonoids recovered much faster than other marine shelly invertebrates after the end-Permian mass extinction. Based on a refined global data set at the basin level, we investigate the paleobiogeographical global latitudinal ...
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(2006)We use a revised set of seafloor spreading isochrons and updated plate tectonic reconstructions to produce palaeo-age and basement depth grids for the Southern Ocean. The palaeo-depth maps illustrate the evolution of the ...
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(2006)The crystal structure an oxysalt may be divided into two parts: (1) the structural unit, an array high-bond-valance polyhedra that is usually anionic in character, and (2) the interstitial complex, an array of large ...
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(2006)Vascular plant biomarkers are used here as a chemostratigraphic tool for tracing both palaeoflora and palaeoclimatic changes during the Callovian and Oxfordian in the Paris Basin. The retene/cadalene ratio shows low values ...
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(2006)The distribution of mass anomalies within the crust of the Archean Western Superior Province has been investigated with forward and inverse gravity modeling routines. The gravity models indicate that in most of the Western ...
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(2006)The stratigraphic architecture of sedimentary basin provides important constraints on the rheological structure of the upper mantle and the crust, eustatic events and tectonic movements. In this study, we examined the ...
Now showing items 401-420 of 43223