-
2261
Effect of temperature and clay addition on the thermal behavior of phosphate sludge
Published 2021-05-01“…For clay, it mainly consisted of illite, kaolinite, quartz, calcite, and dolomite. After clay sintering at high temperature, a new phase was formed, i.e. anorthite. …”
Get full text
Article -
2262
Co-disposição de lodo centrifugado de Estação de Tratamento de Água (ETA) em matriz de concreto: método alternativo de preservação ambiental Disposal of centrifuged sludge from Wat...
Published 2005-06-01“…The sludge is composed by Si, Fe and Al compounds, and by clay minerals of kaolinite group, and its moisture content is about 87%. …”
Get full text
Article -
2263
Effect of magnesium rich synthetic gypsum application on ultisol properties and growth of oil palm seedlings
Published 2017“…The clay fraction of the soil was dominated by kaolinite, gibbsite, goethite, and hematite; thus, the plant nutrient status of the soil is low. …”
Get full text
Thesis -
2264
Effects of coated urea fertilizers on growth and yield of MR219 rice (Oryza sativa L.)
Published 2016“…Six different types of fertilizers were tested, namely U, SCU, GSCUP (gypsum and sulfur coated urea using rotating pan), GSCUD (gypsum and sulfur coated urea using rotating drum), DCU (dolomite coated urea), and KCU (kaolinite coated urea). The outcomes showed that the application of DCU to the crop improved the growth as well as the productivity of the rice yield. …”
Get full text
Thesis -
2265
Temperature condition, sulfidation state, and gold formation mechanism of the Atash- Anbar polymetallic deposit (south Qazvin) based on mineralization, alteration and chemistry of...
Published 2022-06-01“…Argillic alterations (kaolinite-illite±dickite mineral assemblage) together with silicification alteration (quartz± jasper assemblage) are the main alterations in the area. …”
Get full text
Article -
2266
Lower Cretaceous Rodby and Palaeocene Lista Shales: Characterisation and Comparison of Top-Seal Mudstones at Two Planned CCS Sites, Offshore UK
Published 2020-08-01“…The Lower Cretaceous Rodby Shale has a mean porosity of approximately 14 %, a mean permeability of 263 nD (2.58 × 10<sup>−19</sup> m<sup>2</sup>), and is calcite rich and has clay minerals that are relatively rich in non-radioactive phases such as kaolinite. The Palaeocene Lista Shale has a mean porosity of approximately 16% a mean permeability of 225 nD (2.21 × 10<sup>−19</sup> m<sup>2</sup>), and is calcite free, but contains abundant quartz silt and is dominated by smectite. …”
Get full text
Article -
2267
Krasnoshteinite, Al<sub>8</sub>[B<sub>2</sub>O<sub>4</sub>(OH)<sub>2</sub>](OH)<sub>16</sub>Cl<sub>4</sub>⋅7H<sub>2</sub>O, a New Microporous Mineral with a Novel Type of Borate Po...
Published 2020-04-01“…It occurs as transparent colourless tabular to lamellar crystals embedded up to 0.06 x 0.25 x 0.3 mm in halite-carnallite rock and is associated with dritsite, dolomite, magnesite, quartz, baryte, kaolinite, potassic feldspar, congolite, members of the goyazite–woodhouseite series, fluorite, hematite, and anatase. …”
Get full text
Article -
2268
Mineralogy and geochemistry of the Jurassic coals from the Gheshlagh mine, Eastern Alborz
Published 2015-10-01“…Petrographic and mineralogical investigations indicate that the dominant mineral phases of the Gheshlagh coals are quartz, kaolinite, montmorillonite, albite, muscovite, illite and pyrite. …”
Get full text
Article -
2269
Effects of Organic Matter Removal on Potassium Adsorption Isotherms in Different pH Values at Some Soil of Khuzestan Province
Published 2017-02-01“…Adsorption sites for K by organic matter are similar to planar surfaces like kaolinite clays. Soil pH has also significant effect on K adsorption as CEC increases with increase in pH. …”
Get full text
Article -
2270
Avaliação preliminar do emprego de arenito zeolítico da região nordeste do Brasil como material pozolânico para cimento Portland Preliminary evaluation of sandstones from northeast...
Published 2011-12-01“…The same happens with kaolinite that needs thermal treatment above 550 ºC to convert to the amorphous phase metakaolin in order to be used as one of the most commons pozzolans in the cement industry. …”
Get full text
Article -
2271
The study of fluid inclusions and genesis of mineralization in the northwest of Gonabad, the Southern Khorasan Razavi province
Published 2020-11-01“…The mineralogical compositions of this clay deposits are quartz, kaolinite, dickite, montmorillonite and hematite. …”
Get full text
Article -
2272
Geology and geochemistry of the Choran porphyry-epithermal Cu-Au deposit in the Dehej-Sarduveyeh subzone, Urumieh-Dokhtar magmatic arc
Published 2022-06-01“…The hydrothermal alteration consisting of sodic-potassic, potassic, phyllic alunite and kaolinite are associated with granodiorite and quartz diorite intrusions. …”
Get full text
Article -
2273
Caracterização física e química dos filitos Açungui (PR) visando sua utilização pela indústria cerâmica Physical and chemical characteristics of Açungui phillites (PR, Brazil) for...
Published 2004-03-01“…<br>Analysis of 12 samples of Açungui phyllites showed rocks composed by sericite, kaolinite, quartz and goethite, without smectites and chlorites, and locally with sodiam zeolites. …”
Get full text
Article -
2274
Properties, classification and suitability of Malaysian soils derived from granite-gneiss and potential of basalt to improve growth of rubber (Hevea brasiliensis Müll. Arg.)
Published 2017“…In terms of clay mineralogy, it is dominated by kaolinite, as shown in XRD diffractogram at reflections 7.2 Å, 3.58 Å and 3.4 Å, followed by gibbsite at 4.82 Å and 4.32 Å. …”
Get full text
Thesis -
2275
Selective Dissolution of Clay Minerals in Tight Sandstone by Organic Acids
Published 2023-05-01“…The main mineral in contact with crude oil is of clay composition in dense sandstone reservoirs[23-25]. Chlorite, kaolinite, illite and other minerals are common and important clay mineral types. …”
Get full text
Article -
2276
Efeito do pH na adsorção e dessorção de cádmio em Latossolos brasileiros Effect of pH on cadmium adsorption and desorption in Brazilian Oxisols
Published 2005-07-01“…The effect of soil attributes on Cd ads was only evidenced at a pH of 5.5 and 6.5, by the correlations between Cd ads and the soil organic matter, specific superficial area (SSA), CEC at pH 7.0 (CEC), kaolinite, hematite, oxalate-and-DCB-Fe and clay contents. …”
Get full text
Article -
2277
Gênese de solos derivados de rochas ultramáficas serpentinizadas no sudoeste de Minas Gerais Genesis of soils formed from ultramafic serpentinized rocks in southwestern Minas Gerai...
Published 2006-06-01“…The latter is abundant in the silt fraction. Iron oxides, kaolinite and chlorite-smectite and chlorite-vermiculite interlayers complete the mineralogical assembly. …”
Get full text
Article -
2278
The effect of (NH<sub>4</sub>)<sub>2</sub>SO<sub>4</sub> on the freezing properties of non-mineral dust ice-nucleating substances of atmospheric relevance
Published 2021-10-01“…Conversely, (NH<span class="inline-formula"><sub>4</sub>)<sub>2</sub></span>SO<span class="inline-formula"><sub>4</sub></span> increased the median freezing temperature of four different mineral dusts (potassium-rich feldspar, Arizona Test Dust, kaolinite, montmorillonite) by 3 to 9 <span class="inline-formula"><sup>∘</sup></span>C and increased the ice nucleation active site density per gram of material (<span class="inline-formula"><i>n</i><sub>m</sub>(<i>T</i>))</span> by a factor of <span class="inline-formula">∼</span> 10 to <span class="inline-formula">∼</span> 30. …”
Get full text
Article -
2279
Mineralogia, micromorfologia e gênese de solos planossólicos do Sertão do Araripe, estado de Pernambuco Mineralogy, micromorphology and genesis of soils with stagnic properties fro...
Published 2004-08-01“…The clay fraction is composed by kaolinite, mica, irregular interstratified minerals, smectite, and quartz. …”
Get full text
Article -
2280
Geochemical properties of major and rare earth elements in the South Kouchek-Ali Coal Mine, Tabas
Published 2019-07-01“…Positive correlations of ∑REEs with Al2O3, SiO2, and TiO2 suggest that the REEs are mainly derived from detrital sources and occur dominantly in kaolinite and illite. The concentrations of ∑REEs in representative samples range from 69.54 to 113.06 ppm with an average value of 127.94 ppm, higher than the average ∑REE content of the USA (53.59 ppm) (Finkelman, 1993) and worldwide coals (68ppm) (Yudovich and Ketris, 2006), but lower than that of average Chinese coals (162.51 ppm) (Dai et. al., 2008). …”
Get full text
Article