Results 21 to 30 of about 3,477 (195)
Archaeometric Analyses of Medieval Pottery from the Lower Danube Region, Romania. [PDF]
ChempluschemThis study is about the pottery manufacturing in the Lower Danube region during the Early Medieval period (8th–10th c. AD). Optical microscopy, Particle induced X‐ray emission, and X‐ray diffraction analyses performed on 32 representative ceramic shards excavated at Pantelimonu de Sus, Constanţa County, Romania, provide clues on the raw materials and ...
Haită C +3 more
europepmc +2 more sources
Sedimentary talc in Neoproterozoic carbonate successions [PDF]
, 2014 Mineralogical, petrographic and sedimentological observations document early diagenetic talc in carbonate-dominated successions deposited on two early Neoproterozoic (~ 800–700 million years old) platform margins.
Johnston, David T +4 more
core +1 more source
Experimental study of smectite interaction with metal iron at low temperature: 1. Smectite destabilization. [PDF]
, 2005 Interaction between metal Fe and a variety of natural and synthetic smectite samples with contrasting crystal chemistry was studied by scanning electron microscopy and X-ray diffraction from experiments conducted at 80°C. These experiments demonstrate an
Bauer, Andreas +5 more
core +4 more sources
Бюллетень Почвенного института им. В.В. Докучаева, 2010 The distribution of clay minerals of the fraction less than 1 micron, extracted from typical, alkaline, podzolized agronomic black earths, depends on the type of soil, lithology of soil-forming rocks and relief.
N. Chizhikova +2 more
doaj +1 more source
Alteration of podzolized tills by acid load near Ni-Cu smelters at Monchegorsk, Kola Peninsula, Russia [PDF]
Bulletin of the Geological Society of Finland, 1994 Mineralogy and geochemistry of podzolized tills was studied in the area of dieback forest near the Ni-Cu smelters at Monchegorsk, and less extensively forest damage near by Apatity and Kirovsk in the Russian Kola Peninsula.
M.L. Räisänen, E. Pulkkinen, M. Kontio
doaj +1 more source
Geothermal Energy, 2017 A submarine hydrothermal fluid discharge structure in Akureyri Bay, Eyjafjörður region, Iceland, was investigated by means of structural, geochemical, and mineralogical methods.
Richard Stanulla +4 more
doaj +1 more source
Relationship between mineralogy and the physico-chemical properties of till in central Finland [PDF]
Bulletin of the Geological Society of Finland, 1992 The chemical and physical characteristics of the fine fraction of till were examined in the area of the Raahe-Ladoga metallogenic belt in central Finland. Till, weathered bedrock and rock samples were collected from the area, where element concentrations
M.L. Räisänen, M. Tenhola, J. Mäkinen
doaj +1 more source
Near Infrared Spectroscopic Study of Trioctahedral Chlorites and Its Remote Sensing Application
Open Geosciences, 2019 The mineral chemistry of thirteen trioctahedral chlorite samples from four regions in northwestern China, having a wide range of Fe and Mg contents and relatively constant Al and Si contents, were studied via raman spectroscopy, near infrared (NIR ...
Yang Min +7 more
doaj +1 more source
The composition of metapelitic biotite, white mica, and chlorite: a review with implications for solid-solution models [PDF]
European Journal of MineralogyBiotite, white mica, and chlorite record petrological processes and pressure–temperature conditions. Unfortunately, their crystal chemistry is complicated and thermodynamic modelling of their phase relations is hindered by this complexity.
B. Dubacq, J. B. Forshaw
doaj +1 more source
Bityite 2M1 from Eräjärvi compared with related Li-Be brittle micas [PDF]
Bulletin of the Geological Society of Finland, 1985 Bityite was encountered in thee lithium pegmatite dykes in the Eräjärvi area in Orivesi, southern Finland. The mineral is closely associated with beryl occurring in pseudomorphs after it or in cavities with bertrandite, fluorite and fluorapatite as a ...
S.I. Lahti, R. Saikkonen
doaj +1 more source