PATTERNS OF TIES BETWEEN THICKNESS AND SPREADING OF TERRIGENOUS SEDIMENTS ON THE EXAMPLE OF UKRAINIAN SHIELD IN THE NORTH

2019 ◽  
pp. 14-22
Author(s):  
A. Baran
Keyword(s):  
Bentonite Clay ◽  
Qualitative Evaluation ◽  
Ukrainian Shield ◽  
Average Thickness ◽  
Regional Research ◽  
Sediment Thickness ◽  
Terrigenous Sediments ◽  
New Methods ◽  
The North ◽  
Secondary Kaolin

This article focuses on identifying patterns typical for formations of sediment stratum that covers crystalline foundation in the north of Ukrainian shield, and on their basisfinding new methods that could be used during regional research, and also while exploring and prospecting sediment minerals fields. In particular, there are researches of statistical relations between average thickness and spreading of terrigenous sediments using the example of two territories situated on Novograd block of Volyn mega block and Fastiv block of Rosynsk-Tikytsk mega block. For this purpose, method of double correlation analysis was used. It was found out that there are various correlation connections between these indexes for the whole stratum, Quaternary and Neogene deposits. Part of them has strong and very strong relative connections. The following pattern was identified: in relatively well sorted or not sorted sediments correlational connection between thickness and spreading is always stronger than in all the sediments together in the case when they form the bigger part of sediment stratum volume or the volume of its researched part. Thus, one of the main factors that influence the correlational connections between thickness and spreading of all the sediment stratum or its part is their sorted or unsorted state. The information about existence of strong correlation connections between thickness and spreading of sediments of all the sediment stratum or its part can makegeological or sedimentological maps more substantial if they reflect spreading of these sediments. In this case according to the region of spreading of a sediment one can make at least qualitative evaluation of its average thickness, and thus its volume on the territory that is shown on the map. The identified pattern can be used while calculating projected resources of some minerals in some fields, zones, areas of their spreading. First of all, it concerns minerals that form separate horizons. They are secondary kaolin, expanded and bentonite clay, brown coal etc. With the help of this pattern one can calculate mineragenic potential in separate topographical sheets, administrative and geomorphological areas etc. The research of correlation connections between sediment thickness and spreading on the other mega blocks of Ukrainian shield and other regions may be perspective.

U-Pb on Zircon and Monazite Geochronology of Granites of the Zhytomyr and Sheremetiv Complexes, the North-Western Region of the Ukrainian Shield

2018 ◽  
Vol 40 (2) ◽  
pp. 63-85 ◽  
Author(s):  
L. Shumlyanskyy ◽  
L. Stepanyuk ◽  
S. Claesson ◽  
K. Rudenko ◽  
A. Bekker
Keyword(s):  
Ukrainian Shield ◽  
Western Region ◽  
The North ◽  
North Western

Purification by a natural waste stabilization pond: influence of weather and ageing on treatment quality and sediment thickness

1995 ◽  
Vol 31 (12) ◽  
pp. 191-200 ◽  
Author(s):  
S. Schetrite ◽  
Y. Racault
Keyword(s):  
Treatment Quality ◽  
Sediment Thickness ◽  
Nitrogen And Phosphorus ◽  
Climate Conditions ◽  
Stabilization Pond ◽  
Waste Stabilization Pond ◽  
The North ◽  
Treated Effluent ◽  
Waste Stabilization

The natural waste stabilization pond of Vauciennes, located in the north of France, underwent regular monitoring from October 1981 to July 1991, within the framework of a programme studying the evolution of operation parameters related to the ageing of plants. This study enabled us to assess the variations in the quality of the discharge depending on the season, in particular concerning the nitrogen and phosphorus parameters. The input/output reports made it possible to make specifications concerning the variations of the loads to be treated and the overloads caused by rainy episodes, and the real performances of the plants in relation to rainfall, evaporation, hydraulic exchanges with the soil and interannual seasonal variations. The evolution of the treatment, characterised by the parameters of the treated effluent, was observed, on the basis of equivalent climate conditions. Lastly, the growth of the deposits and their location in the first pond observed based on the systematic establishment of a cartography of the bottom of the pond.

Research of benonite clays of Karakalpakstan for producing ceramic heat-insulating materials

2020 ◽  
pp. 3-5
Author(s):  
Z. R. Kadyrova ◽  
A. P. Purkhanatdinov ◽  
Sh. M. Niyazova
Keyword(s):  
Thermal Insulation ◽  
Bentonite Clay ◽  
Physicochemical Characteristics ◽  
Insulating Materials ◽  
Insulation Materials ◽  
The North ◽  
Bentonite Clays ◽  
Comprehensive Study

The results of a comprehensive study of bentonite clays of the North-Dzhamansay deposit of Karakalpakstan to obtain ceramic thermal insulation materials are presented. According to the chemical-mineral and fractional compositions, as well as the physicochemical characteristics of bentonite clay, the possibility of its use in the production of ceramic thermal insulation materials for various purposes has been established.

Britain - Kitty Hauser. Shadow Sites: Photography, Archaeology, & the British Landscape 1927–1955. xii+314 pages, 120 illustrations. 2007. Oxford: Oxford University Press; 978-0-19-920632-2 hardback. - Richard Muir. Be Your Own Landscape Detective: Investigating Where You Are. xii+308 pages, numerous illustrations. 2007. Stroud: Sutton; 978-0-7509-4333-8 hardback £20; 978-0-7509-4334-5 paperback. - Hadrian Cook & Tom Williamson (ed.). Water Meadows: History, EcologyandConservation. viii+152 pages, 49 b&w & colour illustrations, 9 tables. 2007. Bollington: Windgather; 978-1-905119-12-7 paperback. - Garth Weston. Monuments and Mountains: Stone Circles, Henges and Standing Stones in the Landscape. viii+232 pages, 38 b&w & colour illustrations, 2 tables. 2007. Bakewell: Country Books/Ashbridge; 978-1-901214-79-6 paperback £19.99. - A.L. Brindley The Dating of Food Vessels & Urns in Ireland (Bronze Age Studies 7). vii+392 pages, 164 illustrations, 75 tables. 2007. Galway: Department of Archaeology, National University of Ireland; 9535620-2-6 hardback €40+€7 postage. - David Petts with Christopher Gerrard. Shared Visions: The North-East Regional Research Framework forthe Historic Environment. vi+278 pages, 99 b&w & colour illustrations. 2006. Durham: Durham County Council; 978-1-897585-86-3 paperback £25. - Peter Davenport, Cynthia Poole & David Jordan. Archaeology in Bath. Excavations at the New RoyalBaths (the Spa), and Bellott’s Hospital 1998–1999. (Oxford Archaeology Monograph 3). xiv+182 pages, 75 illustrations, 32 tables. 2007. Oxford: Oxford Archaeology; 978-0-904220-45-2 paperback £9.99. - Simon Young. Farewell Britannia: A Family Saga of Roman Britain. xiv+286 pages, 6 illustrations. 2007. London: Weidenfeld & Nicolson; 978-0-297-85226-1 hardback £16.99. - Alan Crossley, Tom Hassall & Peter Sawley (ed.). William Morris’s Kelmscott: Landscape and History. xiv+210 pages, 114 b&w & colour illustrations. 2007. Bollington: Windgather; 978-1-905119-14-1 paperback.

Antiquity ◽  
2007 ◽  
Vol 81 (313) ◽  
pp. 826-826
Author(s):  
Madeleine Hummler
Keyword(s):  
Bronze Age ◽  
County Council ◽  
Regional Research ◽  
Roman Britain ◽  
Oxford University ◽  
Family Saga ◽  
North East ◽  
The North ◽  
National University ◽  
Age Studies

A three-dimensional gravity model of the southern contact of the Sebago pluton, Maine

1998 ◽  
Vol 35 (6) ◽  
pp. 649-656 ◽  
Author(s):  
Mark D Behn ◽  
J Dykstra Eusden, Jr. ◽  
John A Notte III
Keyword(s):  
Three Dimensional ◽  
Average Thickness ◽  
Uniform Thickness ◽  
Dimensional Model ◽  
Three Dimensional Model ◽  
Metasedimentary Rocks ◽  
The North ◽  
Dimensional Gravity ◽  
Relationship Of ◽  
The Relationship

The Sebago pluton is a two-mica granite that intruded the metasedimentary rocks of the Central Maine Terrane around 292 Ma. In recent years, geologists have raised an increasing number of questions related to the overall thickness of the Sebago pluton and the position of its subsurface contact with the underlying metasedimentary rocks. Past studies have shown the Sebago pluton to be a thin, 1-2 km thick, subhorizontal sheet dipping 3° to the northeast. This study examines anomalies in the Earth's gravitational field related to the southern portion of the Sebago pluton, specifically to determine the thickness of the pluton and to locate the subsurface contact between the pluton and the underlying metasedimentary rocks. A three-dimensional model shows the thickest portions of the pluton (~1.8 km) to occur at the bottom of a bowl hape along the southwestern contact. Moreover, the model shows the pluton to thin toward the northern and eastern regions of the study area, where the average thickness is less than 0.5 km. The pluton appears to extend southward below the cover of the metasedimentary rocks along the southwestern contact. Thus, contrary to previous models, the Sebago pluton is not a northeasterly dipping sheet of uniform thickness, but rather an arched sheet with an irregular thickness extending beneath the metasedimentary rocks along both its northern and southern contacts. Based on this new geometry, either the relationship of the pluton to the surrounding metamorphic zones must be modified, or the possibility must be considered that the Sebago pluton is actually a composite batholith, composed of a younger (Permian) granite to the north and an older (Carboniferous) granite to the south.

Qualitative evaluation of general university requirements in a new 4-year university curriculum: findings based on experiences of students

2017 ◽  
Vol 29 (1) ◽  
pp. 91-102 ◽  
Author(s):  
Daniel T.L. Shek ◽  
Lu Yu ◽  
Florence K.Y. Wu ◽  
Catalina S.M. Ng ◽  
Wen Yu Chai
Keyword(s):  
Hong Kong ◽  
General Education ◽  
Teaching And Learning ◽  
Qualitative Data ◽  
Qualitative Evaluation ◽  
Beneficial Effects ◽  
The North ◽  
University Curriculum ◽  
American Model ◽  
The Impact

Abstract Following the North American model, the length of undergraduate program in Hong Kong has been extended from 3 to 4 years since 2012. To maximize the impact of the additional year, The Hong Kong Polytechnic University (PolyU) has implemented a new general education framework entitled “General University Requirements (GUR)” aiming to cultivate students in a holistic manner. This study explored students’ impressions of the GUR subjects using a survey collecting primarily qualitative data. Results from 163 students of eight faculties showed that students perceived the GUR subjects favorably. Having opportunities to make new friends from other departments and the teaching and learning methods, particularly experiential learning stimulated students’ interest and enriched their learning experiences which were reportedly are unforgettable. Some of the obstacles encountered by students in several subjects were identified. The beneficial effects of the GUR subjects in different domains were voiced by the students.

Relation between the type of wave exposure and seagrass losses (Cymodocea nodosa) in the south of Gran Canaria (Canary Islands — Spain)

2014 ◽  
Vol 43 (1) ◽  
Author(s):  
Eduardo Portillo
Keyword(s):  
Canary Islands ◽  
Qualitative Evaluation ◽  
Cymodocea Nodosa ◽  
The South ◽  
Frictional Drag ◽  
Winter Storms ◽  
Gran Canaria ◽  
Seagrass Meadows ◽  
The North ◽  
Storm Waves

AbstractEffects of different types of wave events on Cymodocea nodosa seagrass meadows were observed and investigated by quantitative and qualitative evaluation of material washed ashore a few days after the events. The studied seagrass meadows are located on the south coast of the island of Gran Canaria (Canary Islands — Spain) and they are protected from frequent swells arriving from the North Atlantic. However, sporadic phenomena associated with winter storms occasionally hit this coastline, causing the loss of entire plants (fresh leaves with rhizomes and roots attached). An unusual type of southern swells generated in the South Atlantic also reaches the Islands in spring and summer. A clear relation was observed between the wave events (southern swells and storm waves) and the material cast ashore over the following days, with differences in composition (fresh vs. decaying leaves) depending on the type of event. After southern swells, detached portions of C. nodosa consisted mostly of decaying leaves shed after senescence. These old swells cause frictional drag with moderate oscillations over a wider range at greater depths, removing only decaying leaves from the seagrass meadows and favoring the natural clean-up process.

scholarly journals The effect of water extract from bentonite on embryonic and larval development of the green toad (bufoviridis) with different phenotypes

2021 ◽  
Vol 265 ◽  
pp. 05006
Author(s):  
A. I. Tskhovrebova ◽  
A. L. Kalabekov ◽  
Z. A. Gagieva ◽  
N. D. Chochieva
Keyword(s):  
Educational Institution ◽  
Water Extract ◽  
Bentonite Clay ◽  
Postembryonic Development ◽  
Federal State ◽  
The North ◽  
Complex Process ◽  
Green Toad ◽  
Embryonic And Larval Development ◽  
Olive Green

Ontogenesis is a complex process of morphophysiological transformations. Embryonic and postembryonic development is continuously affected by both endogenous and environmental factors, which lead to variability in morphometric parameters. The research was conducted in the laboratory of ecological embryology of the Federal State Budgetary Educational Institution of Higher Education of the North Osetian Federal University (Vladikavkaz). The results showed that under the influence of bentonite extract, the morphological parameters of green toad larvae with a brown phenotype are more variable than in larvae with an olive green phenotype in both the control and experimental groups. Thus, the embryos and larvae of the green toad with the olive green phenotype are more stable than the larvae that had the brown phenotype, both in natural circumstances and under the influence of bentonite clay extracts.

Sign in / Sign up

Export Citation Format

Share Document