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EN
Geologists of the Polish Geological Institute carried out their professional activities abroad as part of geological expeditions, in teams of several people and on individual contracts, including as experts of the United Nations. In terms of the scope of work, most of their activities were focued on research on mineral resources, mapping, geochemistry, hydrogeology and geophysics, as well as on teaching of geology at the university level. The beginnings date back to the turn of the 1950s. It began with a geological expedition to Vietnam. Mongolia was the goal of subsequent expeditions on a much wider scale. The researches were conducted from the beginning of the 1960s until the end of the 1980s. The contracts, performed in groups of several people and individually, covered about 20 countries; most of them on the African continent. They focused primarily on the search for metal ore deposits, hard coal, and chemical and rock raw materials. PGI geologists also worked as UN experts in Benin, Burundi, Chad, Gabon, Haiti, India, Madagascar, Mauritania and Niger. The results of their work on various continents were the discoveries of numerous mineral deposits and the recognition of geological structure over an area of thousands of square kilometres.
PL
Fosfor jest ważnym elementem utrzymania życia, jednakże wysokie stężenia fosforu i azotu zrzucane do wód to powyższe substancje biogenne powodują eutrofizację środowiska wodnego. W pracy przedstawiono wybrane przykłady instalacji do praktycznego zastosowania odzysku substancji biogennych, szczególnie implementacji odzysku fosforu poprzez technologię krystalizacji struwitu z odcieków z przeróbki osadów ściekowych w Ameryce Północnej i Europie.
EN
Phosphorus is essential to life; however, with high concentrations of phosphorus and nitrogen discharged into waters, these nutrients lead to eutrophication of the aquatic environment. The article presents selected examples of installations for practical use of nutrients recovery, in particular implementation of phosphorus recovery from sludge treatment liquors through struvite crystallization technology in North America and Europe.
EN
As an independent geothermal proxy, the Curie-point depth has important geodynamic implications, but its estimation from magnetic anomalies requires an understanding of the spatial correlation of source magnetization, mathematically characterized by a fractal exponent. In this paper, we show that fractal exponent and Curie depth are so strongly inter-connected that attempts to simultaneous or iterative estimation of both of them often turn out to be futile. In cases of true large Curie depths, the iterative “de-fractal” method has a tendency of overcorrecting fractal exponents and thereby producing erroneously small Curie depths and smearing out true geological trends. While true fractal exponent can no way be constant over a large area, a regionally fxed fractal exponent is better than any mathematical treatments that are beyond the limit of data resolution and the underlying physics.
PL
Richard Haag, amerykański architekt krajobrazu przełomu XX i XXI wieku, wpływał w swojej pracy na zmianę wizerunku terenów poprzez tworzenie koncepcji, których fundamenty opierały się na zagadnieniach związanych z ekologią. Do dziś 50-letnia twórczość architekta znana jest z projektów zarówno publicznych, jak i mieszkalnych, które ukształtowały północno-zachodni krajobraz Ameryki Północnej.
EN
Echinoids are rare in the Upper Cretaceous of the Western Interior, where fewer than 60 unique occurrences are known to date, most of these represented by only a few tests or isolated spines. A notable exception is the Carthage coal field (Socorro County, New Mexico), where more than 200 specimens of Mecaster batnensis, previously referred to as Hemiaster jacksoni Maury, 1925, have been collected from the basal Bridge Creek Limestone Beds of the Tokay Tongue of the Mancos Shale. Prolific occurrences from the same beds are known from elsewhere in west-central and southwest New Mexico. Recorded originally from the Upper Cretaceous of Algeria, M. batnensis is a small- to medium-sized, irregular echinoid that is confined to the upper Cenomanian Euomphaloceras septemseriatum Zone in New Mexico. Measurements on 169 well-preserved specimens from two localities in New Mexico document a species that is, on average, 21.0 mm long, 19.8 mm wide, and 15.1 mm tall, yielding a width/length ratio of 0.94 and a height/length ratio of 0.72. Graphs plotting width against length and height against length are strongly linear. The Western Interior echinoid record spans the entire Late Cretaceous, although there are no records from rocks of Santonian age. Localities are spread from New Mexico on the south to Alberta on the north. Preserva-tion ranges from coarse internal molds in high-energy sandstones to original tests in low-energy limestones.
EN
An unusual, exotic, ammonite fauna including Romaniceras mexicanum Jones, 1938, Prionocyclus hyatti (Stanton, 1894) and Coilopoceras cf. springeri Hyatt, 1903 is recorded from the late Middle Turonian of Vaucluse and Gard, southern France. It is the first record of this ammonite association outside the Gulf Coast region and the Western Interior of the United States of North America. Up to present, these species were considered as endemic to the Western Interior sea-way. The migration of numerous ammonites from North America to western Europe during the late Middle Turonian suggests it is linked to a transgressive event or to a short sea-level high.
EN
The Kayenta Formation is the third in a series of stratigraphic units making up the Glen Canyon Group that were sampled along US Hwy 89 in southern Utah. The Kayenta is dominantly reversed polarity with a number of very short normal polarity intervals. Above the Kayenta and interbedded in the Navajo Sandstone is the Tenney Canyon Tongue of the Kayenta Formation. The lower half of the Tenney Canyon Tongue was also sampled and is dominantly normal polarity with three short reversed polarity intervals. The dominantly reversed magnetostratigraphy of the Kayenta appears to match that of Early Pliensbachian polarity interval “e-Pli R.” The dominance of normal polarity of the Tenney Canyon Tongue suggests that the Tenney Canyon may have been deposited in the upper half of the Pliensbachian polarity interval “ePli-N.” The suggested polarity matches indicate that the Kayenta and Tenney Canyon Tongue strata are 187–190 Ma in age. The paleopoles of the two units are statistically identical. The combined data of the Kayenta-Springdale-Whitmore Point show that the J-1 cusp terminated before the deposition of the Kayenta Formation. The North American continent/pole returned to its Late Triassic position during/after Springdale time, apparently along the same path used to reach the apex of the J-1 cusp.
PL
Organizacja ruchu jest jednym z podstawowych czynników wpływających na bezpieczeństwo i efektywność ruchu drogowego. Na przykładzie kilku państw europejskich: Belgii, Niemiec i Hiszpanii, oraz Kanady został przedstawiony taki element organizacji ruchu jak ograniczenie prędkości.
EN
Organization of traffic is one of the main factors affecting the security and effi ciency of road traffic. On the example of several European countries: Belgium, Germany, Spain and Canada, the author shows how were organized such traffic elements as speed limitations. In Belgium, the permissible speed is set in such a way that the drivers' behavior is adequate to the environment in which they move. When driving in a residential area either in the city or in rural areas, drivers must respect the needs of local people. The basic rate used in the built-up area is 50 km/h. Decrease or increase of the speed limit by 20 km/h is to help better distinguish different speed zones and to allow for better identification of areas in which they drive. In Germany, there is no statutory speed limits on highways (recommended speed is 130 km/h ), however there are speed limit signs on many sections of the road. While in Canada, the speed limit signs are different from those used in Europe. In the built-up area speed limit varies, depending on the province, from 30-70 km/h. Outside the built-up area it amounts to 100 or 110 km/h. The presented in the article results from traffic observation on the roads of Belgium, Spain, Germany and Canada show many interesting solutions which are not is use in Poland, and which are worth implementing.
EN
The Turonian-Coniacian boundary succession from the Wagon Mound-Springer composite section in the US Western Interior shows a virtually identical macrofaunal record to that revealed in the proposed candidate Coniacian GSSP in the Salzgitter-Salder-Slupia Nadbrzezna composite section in central Europe, with easy identification in both regions of the base of the Coniacian Stage, as defined by the first appearance of the inoceramid bivalve species, Cremnoceramus deformis erectus (Meek). The macrofaunal boundary definition is additionally confirmed by the foraminiferal and nannofossil data, demonstrating the high potential of the inoceramid marker for the base of the Coniacian. The former claims about distinct diachroneity between macrofossil and microfossil dates in the trans-Atlantic correlations, resulted from methodological deficiencies, and have no factual basis.
EN
The "Roadside Geology of..." is the American series of geoturist guidebooks. It contains 24 different volumes which describe geoturist sights of the USA or some regions in Canada. All of the books are written by professional geologists, but mostly for amateurs who would like to learn something more about the geology of the chosen region. Each book includes short introduction about historical and regional geology, geomorphology of described region and also description of minerals which occur there. Every chapter of the guidebook is accompanying by numerous maps, photographs and diagrams. Most of the trips described in guidebooks are one day car trips. The trip-stops are located just near the road or very close to parking lots. Relatively Iow price of the books and over mentioned advantages do the "Roadside Geology" series a very useful tool for getting knowledge about the geoturist sights of Northern America.
EN
The uppermost lower to upper Maastrichtian records of North American scaphitid ammonites in Europe are discussed in terms of taxonomy and significance for transatlantic correlation. A previous record of a U.S. Western Interior scaphitid ammonite, Jeletzkytes dorfi, from the lower part of the upper Maastrichtian in northeast Belgium, is demonstrated to have been based on specimens which reveal features typical of the indigenous European Hoploscaphites constrictus lineage. However, one of the individuals in this collection combines distinct mid-ventral swellings, characteristic of the H. constrictus stock, with irregular flank ornament, typical of J. dorfi. It is speculated that this specimen may be a product of interspecies hybridization. Hoploscaphites sp., allied to H. nicolletii or to H. comprimus, previously known only from the U.S. Western Interior, is recorded from the lower upper Maastrichtian of Austria, and Discoscaphites gulosus, hitherto regarded to be confined to the U.S. Western Interior, Gulf Coast, and Atlantic Seaboard, has been recognised in the upper Maastrichtian of Bulgaria. Additionally, poorly preserved material referred to as Discoscaphites? sp. is recorded from the uppermost lower Maastrichtian of Denmark, and from the upper Maastrichtian of southern Sweden. These records of scaphitids support earlier conclusions that the base of the European upper Maastrichtian roughly corresponds to the base of the Hoploscaphites birkelundae Zone in the U.S. Western Interior.
13
Content available remote The Naref initiative to densify the ITRF in North America
EN
Since the beginning of 2000, the Geodetic Survey Division (GSD) of Natural Resources Canada (NRCan) has been playing a leading role in the North American Reference Frame (NAREF) Working Group of the IAG Commision X Subcommission for North America in support of the International GPS Service (IGS) initiative to densify the International Terrestrial Reference Frame (ITRC) in North America. Following the IGS distributed processing approach, NRCan has been computing three weekly regional solutions for Canada following IGS guidelines. Two such solutions are now being generated by GSD on regular basis for redundancy and quality control, one for a 27 station network using GIPSY-OASIS II software and the other for a 65 station network using the BERNESE GPS Software.
PL
Na początku roku, w bardzo rzeczowy artykule [1], wypomniano polskim informatykom i ich zleceniodawcom siedem grzechów popełnianych przy budowaniu dużych systemów informacyjnych dla gospodarki i administracji publicznej: - Podejmowanie decyzji skomputeryzowania systemu zanim zaistniało określające jego ramy ustawodawstwo; - Błędne określenie potrzeb; - Chciwość; - Źle podpisane kontrakty; - Złe i niestabilne prawo; - Uleganie tradycjom Polski resortowej; - Za dużo polityki.
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