Krista Jüriado, Anto Raukas, V. Petersell,
The Maardu area is among the most polluted regions in Estonia.Past pollution here comes mainly from the phosphorite mining and processing.Waste hills at Maardu contain some 73 million tonnes of alum shale ...
Tópico(s): Geochemistry and Geologic Mapping
2012 - Estonian Academy Publishers | Oil Shale
H Heinsalu, K Jegonjan, T Kurvits, K Mens, I Puura, V Viira,
... Formation.Lithological subdivisions of the Kallavere Formation, the Maardu and Suurjogi members, differ in the structure and ... established only for the lower part of the Maardu Member which belongs to the Cordylodus proavus conodont ...
Tópico(s): Geological and Geophysical Studies
1996 - Estonian Academy Publishers | Proceedings of the Estonian Academy of Sciences Geology
... the Lower Cambrian Tiskre Formation and underlies the Maardu Member (?Upper Cambrian or Tremadoc) and is represented ...
Tópico(s): Astro and Planetary Science
1992 - Estonian Academy Publishers | Proceedings of the Estonian Academy of Sciences Geology
... organic matter of Ordovician Dictyonema oil shale from Maardu, Toolse and other Estonian as well as from ...
Tópico(s): Atmospheric and Environmental Gas Dynamics
2003 - Estonian Academy Publishers | Oil Shale
Tópico(s): CO2 Sequestration and Geologic Interactions
2000 - Springer Nature | Environmental Geology
L. Bityukova, Robert Scholger, Manfred Birke,
... soils on the territory of phosphorite deposits at Maardu. The susceptibility anomaly is caused by particular geological ...
Tópico(s): Geochemistry and Geologic Mapping
1999 - Elsevier BV | Physics and Chemistry of the Earth Part A Solid Earth and Geodesy
E. Puura, Ivars Neretnieks, Kalle Kirsimäe,
Tópico(s): Coal and Its By-products
1999 - Springer Nature | Environmental Geology
Алвар Соэсоо, Johannes Vind, Sigrid Hade,
... co-product. The mining waste dump at the Maardu contains at least 3650 tons of U and ...
Tópico(s): Geological and Geochemical Analysis
2020 - Multidisciplinary Digital Publishing Institute | Minerals
Geochemical processes occurring in Maardu mining waste rock dumps, Estonia, are reviewed on the basis of Estonian practice and recent modelling studies.Oxidation of Dictyonema ... the breakthrough of acidic and metal-rich waters.Maardu study assists also in development of environmentally friendly ...
Tópico(s): Chromium effects and bioremediation
1998 - Estonian Academy Publishers | Oil Shale
... The conodont fauna closely resembles that of the Maardu Member of the Kallavere Formation, and indicates a ...
Tópico(s): Geochemistry and Elemental Analysis
2007 - Taylor & Francis | GFF
M. Pyldme, É. Buzágh‐Gere, J. Pyldme, Mihkel Veiderma,
The thermal reactions between Maardu (Estonia) phosphorite and acidic phosphates were investigated. TG, DTG and DTA of mixtures with H3PO4, Ca(H2PO4)2 · H2O, Ca2P2O7 ...
Tópico(s): Chemical Synthesis and Characterization
1976 - | Journal of thermal analysis
... industrial center of Estonia, and of its suburb Maardu, two very substantial geochemical anomalies with high levels ...
Tópico(s): Radioactivity and Radon Measurements
1993 - Taylor & Francis | Geomicrobiology Journal
Mait Metsur, Madis Metsur, Erki Niitlaan, Anto Raukas, Peep Siitam,
... improving resource productivity in Estonia is utilisation of Maardu granite deposit as a joint goal for producing ... impact assessment in connection with construction of a Maardu deep granite mine was accepted by the Estonian ... is also the high radiation level in the Maardu area and in the planned deep mine. High ... normal circumstances the construction and operation of the Maardu deep granite mine is environmentally safe. The territory of the former Maardu phosphorite opencast is highly polluted and damaged and ...
Tópico(s): Radioactivity and Radon Measurements
2012 - | Baltica
... exposure ages (9, 14, 19, 24 years) in Maardu phosphorite guarries in North Estonia.Here the dynamics ... this species in lichen groupings is analysed.In Maardu quarries A. lapidicola quickly colonizes newly exposed limestone ...
Tópico(s): Botanical Studies and Applications
1994 - Estonian Academy Publishers | Proceedings of the Estonian Academy of Sciences Biology
... Holocene were obtained from the sediments of Lake Maardu, North Estonia.The aim is to show the ...
Tópico(s): Marine and environmental studies
1994 - Estonian Academy Publishers | Proceedings of the Estonian Academy of Sciences Geology
A core from Lake Maardu, 15 km east of Tallinn in the Republic of Estonia, has been analysed with respect to magnetic parameters.The 570 ...
Tópico(s): Geomagnetism and Paleomagnetism Studies
1993 - Estonian Academy Publishers | Proceedings of the Estonian Academy of Sciences Geology
... disturb the environment.The underground mining of the Maardu granite deposit may have a significant impact on ...
Tópico(s): Geochemistry and Geologic Mapping
1995 - Estonian Academy Publishers | Oil Shale
R Palvadre, B Naumov, V Ahelik, I Lille, K Aguraiuja,
Tópico(s): Mining Techniques and Economics
1994 - Estonian Academy Publishers | Oil Shale
... Ordovician (Caradoc) deposits in Aluvere and in the Maardu region, Estonia, are described, demonstrating the validity of ...
Tópico(s): Geological Studies and Exploration
2007 - Taylor & Francis | GFF
... other segregated regions of Estonia: Kohtla-Järve and Maardu. According to the database of the population census ...
Tópico(s): EFL/ESL Teaching and Learning
2011 - University of Tartu Press | Eesti ja soome-ugri keeleteaduse ajakiri Journal of Estonian and Finno-Ugric Linguistics
This paper analyses the cavern stability in the granite mass.Also, feasibility of using a cavern fuel storage is discussed.The shape and the dimension criteria were evaluated by numerical modelling, using the two-dimensional distinct element code UDEC.Rock properties were estimated from geological data by Bieniawski's rock mass rating.Though potentially unstable wedges appeared, with the unreinforcement models, cable reinforcement ensured stabilization of the rock wedges.
Tópico(s): Rock Mechanics and Modeling
1995 - Estonian Academy Publishers | Proceedings of the Estonian Academy of Sciences Engineering
SISSEJUHATUSLääne-Euroopas on keemiliste viitpommide (chemical time bombs) probleemiga tegeldud süstemaatiliselt juba pikemat aega.Ka Eestis on moodustatud rahvusvahelise uurimisprogrammi "Keemilised viitpommid" komisjon.Probleem iseenesest ei ole uus.Üha suurenev keskkonna saasta- tus on ka Eestis
Tópico(s): Landslides and related hazards
1995 - Estonian Academy Publishers | Proceedings of the Estonian Academy of Sciences Chemistry
R Veski, V Palu, H Taal, E Pukkonen, L Pobul, S Sidorova, E Rajavee,
... of crushed shale have been dumped in the Maardu phosphorite quarry.The weathering of DS in the ... metals compounds is a serious environmental impact at Maardu as well.Until now the composition and distribution ... Samples'Altogether nine DS samples, five from the Maardu deposit and four from north eastern Estonia, were ... The U concentration of the DS from the Maardu deposit is relatively low (20-50 ppm or ... middle section of the southern region of the Maardu deposit.The latter sample was exposed to X- ...
Tópico(s): Petroleum Processing and Analysis
1993 - Estonian Academy Publishers | Oil Shale
... lichen species were found on limestone substrates in Maardu phosphorite quarries and the Kostivere karst field, North ... in v. d.Boom was found only in Maardu.Staurothele frustulenta Vain.was found in Maardu and Kostivere.
Tópico(s): Botany and Plant Ecology Studies
1995 - Estonian Academy Publishers | Proceedings of the Estonian Academy of Sciences Biology
... other segregated regions of Estonia: Kohtla-Järve and Maardu.It was determined what language is dominating in ...
Tópico(s): Second Language Learning and Teaching
2010 - Estonian Academy Publishers | Trames Journal of the Humanities and Social Sciences
... 2] flow-sheets for beneficiation of argillites from Maardu and Toolse phosphorite deposits with the aim to ...
1993 - Estonian Academy Publishers | Oil Shale