40Ar/39Ar ages of Precambrian manganese ore minerals from Sweden, India and Morocco

[1]  H. J. Lippolt,et al.  Botryoidal hematite from the Schwarzwald (Germany): heterogeneous uranium distributions and their bearing on the helium dating method , 1993 .

[2]  P. Renne,et al.  Age and Duration of Weathering by 40K-40Ar and 40Ar/39Ar Analysis of Potassium-Manganese Oxides , 1992, Science.

[3]  James E. Wright,et al.  U-Pb dating of columbites: A geochronologic tool to date magmatism and ore deposits , 1992 .

[4]  B. Gulson,et al.  Cassiterite: Potential for direct dating of mineral deposits and a precise age for the Bushveld Complex granites , 1992 .

[5]  G. Turner,et al.  Argon isotope geochemistry of inclusion fluids from granite-associated mineral veins in southwest and northeast England , 1992 .

[6]  D. York,et al.  40Ar/39Ar laser dating of a single grain of magnetite , 1990 .

[7]  D. Davis,et al.  U-Pb evidence for Abitibi gold mineralization postdating greenstone magmatism and metamorphism , 1990, Nature.

[8]  H. D. Jones,et al.  Rb–Sr dating of sphalerites from Tennessee and the genesis of Mississippi Valley type ore deposits , 1990, Nature.

[9]  D. Bish,et al.  Thermal behavior of complex, tunnel-structure manganese oxides , 1989 .

[10]  H. J. Lippolt,et al.  4He diffusion in 40Ar-retentive minerals , 1988 .

[11]  G. Turner.  Hydrothermal fluids and argon isotopes in quartz veins and cherts , 1988 .

[12]  T. Skiöld.  Aspects of the proterozoic geochronology of northern sweden , 1987 .

[13]  S. M. Naqvi,et al.  Precambrian geology of India , 1987 .

[14]  S. Kelley,et al.  The source and significance of argon isotopes in fluid inclusions from areas of mineralization , 1986 .

[15]  J. C. Hess,et al.  Kinetics of Ar isotopes during neutron irradiation: 39Ar loss from minerals as a source of error in 40Ar/39Ar dating , 1986 .

[16]  N. Snelling,et al.  The Geochronology and Evolution of Africa , 1984 .

[17]  J. Luck,et al.  The study of molybdenites through the187Re-187Os chronometer , 1982 .

[18]  P. Buseck,et al.  Symmetry and cation displacements in hollandites : structure refinements of hollandite cryptomelane and priderite , 1982 .

[19]  T. Harrison,et al.  Excess40Ar in metamorphic rocks from Broken Hill, New South Wales: implications for40Ar/39Ar age spectra and the thermal history of the region , 1981 .

[20]  G. B. Dalrymple,et al.  Irradiation of samples for 40Ar/39Ar dating using the Geological Survey TRIGA reactor , 1981 .

[21]  T. Harrison,et al.  Investigations of an intrusive contact, northwest Nelson, New Zealand—I. Thermal, chronological and isotopic constraints , 1980 .

[22]  A. Halliday.  The timing of early and main stage ore mineralization in Southwest Cornwall , 1980 .

[23]  G. Czamanske,et al.  Age measurements of potassium-bearing sulfide minerals by the40Ar/39Ar technique , 1978 .

[24]  J. Lancelot,et al.  Problème de la limite Précambrien–Cambrien: étude radiochronologique par la méthode U–Pb sur zircons du volcan du Jbel Boho (Anti-Atlas marocain) , 1977 .

[25]  Vishwajit J. Gupta.  Indian Precambrian stratigraphy , 1977 .

[26]  G. B. Dalrymple,et al.  Identification of excess 40Ar by the 40Ar/39Ar age spectrum technique , 1976 .

[27]  J. G. Mitchell,et al.  K-Ar dating of epigenetic mineral deposits; an investigation of the Permian metallogenic province of the Oslo region, southern Norway , 1975 .

[28]  Martin H. Dodson,et al.  Closure temperature in cooling geochronological and petrological systems , 1973 .

[29]  A. Saha,et al.  Geochronology of the Pre-Cambrian rocks of Singhbhum and adjacent regions, Eastern India , 1969, Geological Magazine.

[30]  D. F. Hewett,et al.  High-potassium cryptomelane from Tarapaca Province, Chile , 1968 .

[31]  E. Gerling,et al.  Pre-Cambrian Geochronology of Nagpur-Bhandara-Drug, India , 1967, Geological Magazine.

[32]  F. V. Chukhrov,et al.  Feasibility of absolute-age determination for potassium-carrying manganese minerals , 1966 .

[33]  Supriya Roy.  Comparative study of the metamorphosed manganese protores of the world; the problem of the nomenclature of the gondites and kodurites , 1965 .

[34]  Supriya Roy,et al.  Stability relations of manganese oxide minerals in metamorphic orebodies corresponding to sillimanite grade in Gowari Wadhona Mine area, Chhindwara District, Madhya Pradesh, India , 1965 .

[35]  F. N. Mitra.  Genesis and mineralogenetic trend of the manganese ore bodies at Chikla, Sitasaongi and Dongri Buzurg, Bhandara District, Maharashtra, India , 1965 .

[36]  U. Aswathanarayana.  Absolute ages of the Archaean orogenic cycles of India , 1956 .

[37]  A. Byström,et al.  The crystal structure of hollandite, the related manganese oxide minerals, and α-MnO2 , 1950 .

[38]  A. Mathieson,et al.  The crystal structure of cryptomelane , 1950 .