Journal of

GEOsciences

  (Formerly Journal of the Czech Geological Society)

Original Paper

Štěpánka Mrázová, Petr Gadas

Obsidian balls (marekanite) from Cerro Tijerina, central Nicaragua: petrographic investigations

Journal of Geosciences, volume 56 (2011), issue 1, 43 - 49

DOI: http://dx.doi.org/10.3190/jgeosci.086


  Abstract References Map

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Friedman I, Smith RL, Long WD (1966) Hydration of natural glass and formation of perlite. Geol Soc America Bull 77: 323-328

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Johannsen A (1932) A Descriptive Petrography of the Igneous Rocks. Chicago University Press, Chicago, Illinois, Vol. 2: pp 1-428

Judd JW (1886) On marekanite and its allies. Geol Mag 3: 241-248
http://doi.org/10.1017/S001675680014498X

Le Bas MJ, Le Maitre RW, Streckeisen A, Zanettin B (1986) A chemical classification of volcanic rocks on the total alkali−silica diagram. J Petrol 27: 745-750
http://doi.org/10.1093/petrology/27.3.745

Ljunggren P (1960) A formation of marekanite at El Fiscal, Guatemala. Geol Mag 92: 49-53
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Marshall RR (1961) Devitrification of natural glass. Geol Soc America Bull 77: 1493-1520

Noh JH , Boles JR (1989) Diagenetic alteration of perlite in the Guryongpo area, Republic of Korea. Clay Clay Miner 37: 47-58

Peccerillo A, Taylor SR (1976) Geochemistry of Eocene calc-alkaline volcanic rocks from the Kastamonu area, northern Turkey. Contrib Mineral Petrol 68: 61-

Pouchou JL, Pichoir F (1985) “PAP“(φ- ρ-Z) procedure for improved quantitative microanalysis. In: Armstrong JT (ed) Microbeam Analysis. San Francisco Press, pp 104-106

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