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  • Classification of Minnesota lakes by Q-and R-mode factor analysis of sediment mineralogy and geochemistry
  • Les groupements des lacs du Minnesota effectués, des critères chimiques des eaux de surface peuvent également être définis à partir des composants chimiques et minéraux des sédiments profonds. Une analyse factorielle Q-mode effectuée sur 43
  • variables chimiques et minéralogiques des sédiments de 46 lacs du Minnesota à permis l'identification de groupes hydrochimiques basés sur des variables organiques et des composants carbonatés. Une analyse factorielle R-mode sur ces mêmes variables a permis
  • The Savanna Terrace, composed of alternating red and gray clayey sediments of late Wisconsinan age, is the highest glaciofluvial-lacustrine deposit without a loess cover in the upper Mississippi valley. Chemical, physical, and mineralogical data
  • are variable in their physical, chemical and mineralogical properties.
  • Applied geomorphology ; Drainage ; Geochemistry ; Lacustrine sediment ; Mexico ; Mexico City ; Micromorphology ; Mineralogy ; Sedimentology ; Soil ; Soil water ; Subsidence
  • Mexico city is built on the sediments of the former Texcoco lake, which are characterised by the presence of a siliceous deposit, up to 70 m in thickness, called jaboncillo. The jaboncillo is composed dominantly of amorphous silica and iron oxides
  • and hydroxides, with minor amounts of phyllosilicates and detrital volcanic minerals. The mineralogy, the micromorphology and physical and chemical properties are discussed. The AA. aim to determine how far some of their properties change with loss of water due
  • Arid area ; Discriminant analysis ; Dune ; Erg ; Geochemistry ; Grain size distribution ; Mineralogy ; Oman ; Sand
  • The Wahiba Sand Sea is composed of 2 physiographic units that can be roughly divided into northern and southern regions. The Northern Wahiba is predominantly a large megaridge system, whereas the Southern Wahiba mostly comprises linear dunes, sand
  • Mineralogical, geochemical and isotopic characteristics of Quaternary calcretes in the Adana region, southern Turkey : Implications on their origin
  • Calcrete ; Carbon 13 ; Geochemistry ; Isotope analysis ; Mediterranean area ; Mineralogy ; Oxygen 18 ; Pedogenesis ; Southern Turkey ; Turkey
  • -rock mudstones are composed predominantly of calcite and smectite, respectively. The results suggest a pedogenic origin for calcretes. The AA. estimate environmental conditions for calcrete formation : under the C3-dominated vegetation cover
  • Micromorphology and mineralogy of gullied soils in Anambra State, Nigeria
  • In this investigation the micromorphology and mineralogy of two gullied soils were studied. In addition the AA. evaluate the impact of soil erosion on the genesis of the soils and the contribution of the clay mineralogy on erosion processes.
  • , neotectonics and microseismicity of the Pie de Palo, an elongated ridge in the western Sierras Pampeanas of Argentina composed of shattered and sheared Lower Palaeozoic rocks and subject to coseismic uplift. The Pie de Palo is conventionally interpreted
  • [b1] Dep. of Mineralogy, Natural History Museum, London, Royaume-Uni
  • Aeolian dust ; Aeolian features ; Aeolian transport ; Atmospheric circulation ; Baleares ; Grain size distribution ; Mallorca ; Mineralogy ; Seasonal variation ; Spain
  • observed. Analysed samples are silty and mainly composed of quartz and kaolinite. Dust deposition is an important sedimentary process in the Balearic Islands.
  • NATURE AND EVOLUTION OF SOILS DEVELOPED ON THE GRANITE COMPLEX IN THE SUBHUMID TROPICS (IVORY COAST). II. MICROMORPHOLOGY AND MINERALOGY
  • COMPOSANTS LES PLUS IMPORTANTS DES DEPOTS REMANIES CONTIENNENT DE NOMBREUX PRODUITS D'ALTERATION QUI PROVIENNENT SOIT DES HORIZONS SUPERIEURS OU DE LA PARTIE SAPROLITIQUE APPARTENANT AUX PROFILS AUTOCHTONES. SUITE A L'ORIGINE HETEROGENE DE LA COUVERTURE
  • Clay Mineralogy and Sedimentation in the Western Indian Ocean
  • Mangrove soils of Cuba and their mineralogical and geochemical characteristics
  • Mineralogy of iron oxides in two soil chronosequences of Central Spain
  • The AA. show how slight differences in the pedoenvironment give contrasting iron oxide mineralogies in the soils of two geographically close river terrace sequences of central Spain.
  • Alexander Evgenevic Fersman als Mineraloge (A. E. Fersman as a mineralogist)
  • The paper is dealing with a lot of interesting facts of the life of Fersman. The publications of Fersman in the field of mineralogy were analysed and recommended for studying. - (IH)
  • Mineralogical and geochemical trends across the Loess Plateau, North China
  • China ; Geochemistry ; Heavy minerals ; Loess ; Mineralogy ; Plateau ; Sedimentology ; Shanxi ; Surface deposits
  • The objectives in this work were to investigate the mineralogy and major element geochemistry of the uppermost loess layer (Malan Loess) and some topsoils along two transects to determine: 1) the significance of any mineralogical and chemical
  • patterns and wether there are any significant differences between Malan Loess and the topsoil; 2) the relationship between mineralogy and major element chemistry of the loess and its fertility; 3) whether the distributions of heavy minerals and major
  • Mineralogical characterization and transport pathways of dune sand using Landsat TM data, Wahiba Sand Sea, Sultanate of Oman
  • Aeolian features ; Aeolian transport ; Arid area ; Carbonate ; Cluster analysis ; Dune ; LANDSAT ; Mineralogy ; Monsoon ; Oman ; Remote sensing ; Sand ; Thematic Mapper
  • Sand samples and Landsat imagery were used to characterize the spatial distribution of sand mineralogy, and to evaluate potential sources and transport pathways of sediment in the Wahiba Sand Sea in the Sultanate of Oman. Landsat TM data were useful
  • in the geomorphic interpretation of a desert, aeolian environment to distinguish the mineralogies found in the Wahiba area, and in extending the identification of sand mineralogy beyond the point-specific grid produced from field sampling.
  • Morphology, mineralogy and exchange properties as related to geomorphic position of soils in Tiko plain, Coastal West Cameroon
  • The present paper examines the relationships between soil properties and their geomorphic position in the Tiko plain. The emphasis is on the mineralogy and the exchange properties of the soils.
  • On the mineralogical and petrological properties of the younger loess in Hungary in Loess and the Quaternary: Chinese and Hungarian case studies.
  • Loess in Hungary is divided into younger and older loess. The younger loess is subdivided by five forest steppe paleosols. A brief account is given of the mineralogical and petrological and grain size investigations of the individual horizons. (DLO).
  • Mineralogy in silty to loamy soils of Central and High Belgium in respect to autochtonous and allochtonous materials
  • Study of soils on loess in Central and in High Belgium, soils in situ on phyllites (High Belgium) and soils in old weathering loam in situ or on solifluction material in High Belgium. Physico-chemical, chemical and mineralogical data have been
  • Mineralogy and stratigraphy of three deep lateritic profiles of the Jos plateau (Central Nigeria)
  • Geochemistry ; K/Ar dating ; Laterite ; Mineralogy ; Nigeria ; Palaeo-environment ; Sedimentary ; Stratigraphy ; Volcanic rock ; Weathering
  • of mineralogical, paleontological, sedimentological and absolute K/Ar age of basalts, the profiles were placed into the transition from Paleogene to Neogene and stratigraphic correlation was suggested.
  • The clay mineralogy and age of deeply weathered rock in north-east Scotland in Weathered mantles (saprolites) over basement rocks of High Latitudes = Les manteaux d'altération sur les socles des Hautes Latitudes.
  • This paper is concerned with the clay mineralogy of the saprolites and its bearing on the problem of dating the period or periods under which the weathering took place. Data for 29 sites on the clay mineralogy of saprolites in different rock types