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Triassic (Carnian) Sándorhegy Limestone, Balaton Highland, Hungary. Acta Geol. Hung. , 42/3 , pp. 267-299. Platform-basin transition and depositional models for the Upper Triassic (Carnian) Sándorhegy Limestone, Balaton Highland

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. J. Haas 1982 Facies analysis of the cyclic Dachstein Limestone Formation (Upper Triassic) in the Bakony Mountains, Hungary Facies 6 75

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Acta Geologica Hungarica
Authors: János Haas, Ágnes Görög, Sándor Kovács, Péter Ozsvárt, Ilona Matyók, and Pál Pelikán

. 1982: Microfacies analysis of limestones. - Springer-Verlag, 633 p., Berlin, Heidelberg, New York. Microfacies analysis of limestones. 633

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(Gastropoda) in the Late Triassic (early Norian) Cornwallis Limestone, Kuiu Island, southeastern Alaska (Alexander terrane) and its paleobiogeographic significance Bulletin of the Czech Geological Society 76

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. 1985: A budai felső-eocén mészkő mikrofácies modellje. (Microfacies model of the Upper Eocen limestone of Buda). -- őslénytani Viták, 31, pp. 59-64. A budai felső-eocén mészkő mikrofácies modellje

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phase of quartz, the impurity of limestone. The CO 2 comes from unreacted limestone. Table 1 Chemical compositions of three FGD gypsums

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Abstract  

The thaumasite form of sulphate attack (TSA) concerns cements and concretes containing limestone and is attributed to the formation of thaumasite. This work deals with the confirmation of thaumasite formation in cement mortars. Three types of cement were examined: Portland cement and Portland limestone cement containing 15 and 30% mass/mass limestone. The specimens were cured at 5C, for 12 months, in a 1.8% MgSO4 solution. The formation of thaumasite was checked and confirmed by XRD, TG and SEM. It was concluded that mortars containing limestone suffer from TSA at low temperature. The combination of XRD, TG and SEM leads to the positive identification of thaumasite and resolves the well known problem of thaumasite and ettringite confusion.

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Abstract  

To restore a degraded pasture of Brachiaria decumbens, located in São Carlos — SP, southeastern Brazil, under altitude tropical climate, an experiment was carried out to study the effects of limestone, buried or not buried in the soil, and fertilizer use on mineral content and forage yield, after 3 years of treatment. Limestone and phosphorus were applied once, one month before starting. NK were applied after each cutting, for fertilized plots, four to five times a year. Experimental design was a random block (100 m2), with 6 replications and 4 treatments. Each block received 4 t/ha of limestone, except the control. Forage samples were collected 14 cm above soil surface. Instrumental neutron activation analysis (INAA) followed by gamma-ray spectrometry was the analytical method used to determine the mineral contents. Dry matter yield was affected positively with liming when compared with the limestone control, but the effect of limestone use was more pronounced with the concomitant use of NK fertilizer. The contents of Ca, Cs, Fe, La, Mg, Rb, Sc, Sm and Th in forage were negatively affected with the NK use, perhaps due to a dilution effect, while a reverse were observed for K, Cl, perhaps due to input of KCl, besides Br, Mn and Se. It seems that limestone is not a key input to restore degraded tropical pastureland, grown on acid soils, when nitrogen is lacking. INAA allowed the monitoring of some not routine elements that may be under observation to avoid potential plant nutritional disorders in production systems with high limestone and fertilizer use.

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Central European Geology
Authors: Attila Ősi, Gábor Botfalvai, Edina Prondvai, Zsófia Hajdu, Gábor Czirják, Zoltán Szentesi, Emília Pozsgai, Annette E. Götz, László Makádi, Dóra Csengődi, and Krisztina Sebe

Middle Triassic fish teeth from the Kalapani Limestone of Malla Johar, Chamoli district (Uttaranchal) Journal of the Palaeontological Society of India 47 151 155

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