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(Pages 295-296) Chemical composition of external rind and core of a ferromang...
The deposits studied by the author are crusts and coatings of manganese oxide (mixed psilomelane, wad and limonite) on a consolidated marl. They were recovered from the lake... -
(Table 3, page 2132) Composition of the fraction of sediment insoluble in hyd...
Pelagic sediment recovered at DOMES Site A in the equatorial North Pacific (151°W, 9° 15?N) consists of a surface homogeneous layer, approximately 10 cm thick, overlying a... -
Chemical composition of manganese deposits (Birnessite) from Scotland
A manganese pan near Birness contains grains of an optically uniaxial negative mineral near (Na0.7Ca0.3)Mn7O14·2·8H2O, giving an X-ray powder pattern similar to that of... -
Chemical composition of manganese deposits from Cuba
From 1983 until 1989 NOAA-NCEI compiled the NOAA-MMS Marine Minerals Geochemical Database from journal articles, technical reports and unpublished sources from other... -
(Table 1, page 1169) Chemical composition of land (fossil) manganese deposits...
Chemical, x-ray and other data are given for todorokite, (Mn, Mg, Ca, Ba, Na, K)2.Mn5O12.3H2O, from Charco Redondo, Cuba, Farragudo, Portugal, and Hüttenberg, Austria.... -
(Table 2, page 1177) Composition of manganese deposit samples from Cuba
Todorokite is a very abundant manganese oxide mineral in many deposits in Cuba and has been noted from other localities. Six new analyses are givenl they lead to the approximate... -
(Table 1, page 41), Chemical and radiocativity analysis of manganese crusts f...
The trace element content of different bog ores has been measured and it appeared that most of these elements are enriched in the manganiferous bog ores as compared with the... -
(Table, page 49) The composition of soil manganese concretions from Oahu Isla...
The island of Oahu is made up of two almost parallel mountain ranges, the Koolau on the east and the Waianae on the west, with a sloping plateau of about 10 miles in width and... -
Chemistry of manganese concretions from the White Sea
Fe-Mn aggregates are presented in the paper where flat and round concretions (from several mm to 10-12 cm in diameter) and Fe-Mn crusts on bivalves and polychaete tubes with... -
Chemical composition of ferromanganese nodules from the Western Sicily Jurass...
The stratigraphic study focuses on the description of lithofacies and geological sections of secondary, tertiary and quaternary formations in different parts of western Sicily.... -
(Table 1, page 129) Chemical composition of ferromanganese coating on glacial...
Ferromanganese coatings have been found on glacial erratics in Lydonia Canyon, off the United States northeastern coast. The coatings, which are about 17 µm thick, consist of an... -
(Table 6, page 216) Electron microprobe analyses of ferromanganese nodules fr...
Oxide coatings on sediments, especially iron, are ubiquitous in the oxygenated environments of most lakes. Deposits of ferromanganese oxides are especially abundant in many... -
Chemical composition of the chalcophanite rich surface of an encrusted rock a...
Mineralogical interest in the nature of manganese oxide particulates in natural marine water (Suess, 1979), natural lake water (Klaveness, 1977), and simulated lake water... -
Manganese nodule geochemistry from the Challenger Expedition
C. W. Gümbel received nodules from J. Murray which were collected at a depth of 2740 fathoms, between Japan and the Sandwich Islands, by the "Challenger" Expedition. They were... -
Table 2. The element content of manganese crust
The terrains in the South China Sea were apart of the Southeast China continent, and their rift-departing process dominated the formation and evolution of the South China Sea.... -
(Tables, page 17-18) Chemical composition of ferromanganese concretions of th...
This paper discusses the occurrence of manganese-rich concretions in the lakes of Northern Savolax in Eastern Finland. The samples were collected in the summer of 1905 and left... -
Chemical composition of manganese nodules from the Challenger Expedition
The samples were dried in the air (in vacuo) and then dessicated at "red heat".From 1983 until 1989 NOAA-NCEI compiled the NOAA-MMS Marine Minerals Geochemical Database from... -
Chemical composition of iron-manganese ores from Swedish lakes
The chemical composition of iron-manganese were analysed for three sediment cores from Swedish lakes. From 1983 until 1989 NOAA-NCEI compiled the NOAA-MMS Marine Minerals... -
Geochemistry of some manganese nodules
The manganese nodules occur in greater or less quantity all over the ocean-bed, and most abundantly in the Pacific. They occur in all sizes, from minute grains to masses of a... -
(Table, page 500) Geochemistry of a pancake-shaped concretion from lake Charl...
A pancake-shaped concretion from Ship Harbour Lake, a small freshwater lake in eastern Nova Scotia (now named Lake Charlotte) is part of collection sent to the National Museum...