A polarographic oxygen probe (InPro6820/12/320 T-type, Metler Toledo, Greisensee, Switzerland) and the respective meter (type 170) were used to measure the dissolved oxygen concentration in the medium. 2.5. Estimation of kLa The kLa (volumetric mass transfer coefficient) values were measured...
Family Rajidae de Blainville, 1816. 3.1. Genus Leucoraja Malm, 1877 Type species Raja fullonica Linnaeus, 1758 by subsequent designation of Jordan [6]. Translation of the first diagnosis by Stehmann [7], no diagnosis had been given by Malm [5]; although Stehmann’s [7] diagnosis had alre...
They are normally very coarse-grained and exhibit well-developed complex internal zoning that often is disrupted by extensive albitization and ‘greisenization’. In general, these pegmatites frequently contain some zones richer in K-feldspar relative to albite. By comparison, albite-spodumene subtype...