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Charakterystyka czaszy zbiornika Goczałkowice do celów modelowania i oceny procesów sedymentacyjnych osadów

Bojarski A., Mazoń S., Opaliński P., Przecherski P, Wolak A.

Gospodarka Wodna

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2014

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Nr 8

283--285

PL

W artykule przedstawiono zakres pomiarów i badań oraz sposób opracowania charakterystyki czaszy zbiornika, na podstawie której można ocenić procesy sedymentacyjne dopływającego do niego rumowiska. Odpowiednio opracowane dane i charakterystyka zbiornika jest podstawą stosowania zaawansowanego modelowania numerycznego, wykorzystywanego w ocenie i prognozie stanów dynamicznych i jakościowych zbiornika.

EN

The article presents the scope of measurements and research, as well as the method of the reservoir bowl characteristics elaboration, enabling assessment of the inflowing debris sedimentation process. The appropriately processed data and the reservoir's characteristics are the basis for application of the advanced numerical modelling, used in assessment and prognostication of the dynamic and quality conditions of the reservoir.

2

Mikrokonkrecje syderytowe w holoceńskich osadach ujścia rzeki Gwadiana w Portugalii : raport wstępny

Wilamowski A., Boski T., Moura D.

Przegląd Geologiczny

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2013

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Vol. 61, nr 10

568--575

EN

The authors described micro-scale carbonate concretions occurring at a depth of about 41 m within Holocene sandy sediments filling the Guadiana River paleovalley, representing the transitional fluvial- -estuarine facies. Despite their minute sizes, the micro-concretions show a complex internal structure. Regular distribution of Mg, Mn and Ca can be assigned to a chemical zoning, pointing to precipitation under varying chemical conditions. Based on morphological and chemical peculiarities, four types of concretions can be distinguished. Detrital Fe-Mg-carbonates form nuclei. At first, Mn-rich carbonate precipitated as a coating, which is coherent with the sequence of precipitation of carbonates associated with bacteria-mediated oxidation of organic matter. Subsequently, the main bodies of concretions precipitated as Fe-carbonate (siderite). The last precipitation episode is marked by enrichment in Ca. The XRD patterns show the presence of a mixture of discrete carbonate phases.

3

Zróżnicowanie facjalne a skamieniałości późnodewońskich plakodermów w Górach Świętokrzyskich

Szrek P.

Przegląd Geologiczny

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2006

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Vol. 54, nr 6

521-524

EN

Main Late Devonian placoderm taxa known from the Holy Cross Mountains are characterised. The distribution of the Late Devonian placoderm fossils is described. Variation in their occurrences depend on the sedimentation environment of the rocks which contain fossils of this group. Connections between the Holy Cross Mountains placoderms development and the synsedimentary tectonic processes active in this area during the Late Devonian is discussed, and the local faunas compared to classic assemblages of the same age from Latvia.

4

Wpływ morfologii podłoża aluwiów na stabilność układu koryta środkowej Wisły

Falkowski T.

Przegląd Geologiczny

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2005

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Vol. 53, nr 7

605--608

EN

Because of large amount of deposited material and the varied discharge of water, the Middle Vistula possesses the morphologic and lithological characteristics of braided river. During a geological survey of the valley which holds the bed of the Vistula River, culminations of the alluvia basement was detected in channel zone. There were outcrops of Mesozoic rocks — gaizes, marls and limestones, Paleogene and Neogene sediments as clays and sands and Pleistocene sediments as boulder clays, ice-dam deposits and compressed coarse grains fluvioglacial sediments are occasionally found. On the surface of these structures, the presence of residual lags was detected. The shallow location of these types of structures in the river channel proves its erosion-resistant nature. In long section of river bottom they are marked by a considerable increase of their gradient. Resistant steps of this kind are crucial for the natural stability of the river valley in longi-tudinal profile. They can also cause culmination of flood flows. The presence of the culminations of the alluvia basement in the river channel may be a factor increasing the probability of ice jam formation and ice jam floods. Those phenomena are causes of characteristic morphology of terrace surface — presence of erosional troughs of flood event flows. They also affect depositional processes. In the paper the morphologic characteristics of the Middle Vistula (braided lowland river) in the zones of various lithological types of alluvial basement culminations are presented, as well as characteristic structures of channel and flood deposits.

5

Przebieg sedymentacji osadów „sarmatu detrytycznego” na obszarze pomiędzy Stawianami a Sędziejowicami

Brzozowska J.

Przegląd Geologiczny

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2004

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Vol. 52, nr 1

55-60

EN

Studies undertaken by the author in the area between Stawiany and Sędziejowice shown that deposits known as “detrital Sarmatian” created barrier facies, thus confirming arguments of Czapowski (1984). These deposits are indicated in the landscape morphology as elongated and sinuous banks which during the early Sarmatian became the barriers built by along-shore currents of SE–NW direction. Analysis of the paleotransport directions showed diversification of the local transport, NW-directed in the south-east part of the area and S and SE-directed in its northern part. This suggests that besides the a long-shore current, which in the early Sarmatian built the “barrier” that separated the Chmielnik Bay to the E from the Korytnica Bay to the NW, there were also some different directions of clastic material supply. Within Sarmatian deposits two lithofacies were distinguished, with different lithification stage, material sorting and lamination type. Both facies are separated by an erosional boundary. One of these facies represents sediment that built the barrier, the other one consists of sediments deposited in the shallow, coastal environment. Discussed deposits a transgressively overlap the older deposits; in the northern part of the area they lie on the Kraków Clays and in the southern part they lie on the gypsum of the Krzyżanowice Formation. Main carbonate components are algae of genus Archaeolithothamnium, foraminifera and crumbled molluscs shells. The most common fossil is a bivalve Mytilaster (Upper Badenian–Lower Sarmatian).