1 edition of Stable-isotope study of volcanogenic- and sedimentary-manganese deposits found in the catalog.
Distributed to depository libraries in microfiche.Bibliography: leaves 10-11.Microfiche. [Denver, Colo. : U.S. Geological Survey, 1985]. 1 microfiche ; 11 x 15 cm.
|Statement||U.S. Dept. of Interior, Geological Survey|
|Publishers||U.S. Dept. of Interior, Geological Survey|
|The Physical Object|
|Pagination||xvi, 140 p. :|
|Number of Pages||56|
|2||U.S. Geological Survey open-file report -- 85-662.|
|3||Open-file report -- 85-662|
nodata File Size: 10MB.
1991, Manganiferous Zones in Early Proterozoic Iron-formation in the Emily District, Cuyuna Range, East-Central Minnesota: St. Received : 22 August 2019• Mineralogical and Geochemical Studies on Manganese Deposits at Abu Ghusun Area, South Eastern Desert, Egypt.2003, Deposition, diagenesis, and secondary enrichment of metals in the Paleoproterozoic Hotazel Iron Formation, Kalahari Manganese field, South Africa: Economic Geology, v.
English translation, 1970, Jerusalem: Israel Program for Scientific Translations, p.2003, Evidence for low sulphate and anoxia in a mid-Proterozoic marine basin: Nature, v.1976, Metalliferous deposits from the Apennine ophiolites: Mesozoic equivalents of modern deposits from oceanic spreading centers: Geological Society of America Bulletin, v. In addition, the concentrations of other heavy metals, except Pb, were fairly similar to those of other natural waters and these values were also under the drinking water limits set by the WHO and the USEPA.
English translation, 1970, Jerusalem: Israel Program for Scientific Translations, p. Introduction After porphyry and sediment-hosted deposits, volcanogenic massive sulfide VMS deposits are the third-most important sources of base metals and precious metals in Iran. PhD Dissertation, University of Johannesburg Unpublished.
Progress is being made in the technology needed for mining of marine nodules and crusts Chung, 1996 ; however, this large seabed resource is subeconomic under present market conditions. Open-File Report 85-662, 11 pp• Geological and geochemical constraints on the Cheshmeh-Frezi volcanogenic stratiform manganese deposit, Southwest Sabzevar basin, Iran.1999, Variations in Sr and C isotopes and Ce anomalies in successions from China: evidence for the oxygenation of Neoproterozoic seawater?
The environment science of drinking water 368p. The authors thank Franco Pirajno, Editor-in-Chief and Ibrahim Uysal, Associate Editor of Ore Geology Reviews, and David Huston, Fernando Tornos and another anonymous reviewer for their very useful and constructive comments.
COMMENTS: A slightly different model was proposed to explain the origin of Mn-bearing black shales occurring in the deepest areas of anoxic basins by Huckriede and Meischner 1996. 1 was used for pdf compression and textual OCR.
Images: File scanned at 300 ppi 24-bit Color using Capture Perfect 3. Manganese carbonates in the Groote Eylandt sedimentary manganese deposit.
Mn-silicates may be valuable as ornamental stones, but they are not considered as manganese metal ores under present market conditions.
14 per thous for measurement of [delta] 34S in pyrite, pyrrhotite, galena, chalcopyrite and sphalerite.
Isotope and trace element geochemistry, and implications for hydrothermal convection at spreading centers: Earth and Planetary Science Letters, v.