. Science of the sea. An elementary handbook of practical oceanography for travellers, sailors, and yachtsmen. ^DIATOM OOZE @RAOKXARlAN OOZE §R<9 CLAY [Between pp 220, CHART VII.—BOTTOM the larger areas are here shown. OOZES 221 clayey matter coloured by the oxides of iron and man-ganese. This deposit varies greatly in composition bothwith respect to the species of organisms present andtheir relative abundance, and also in the abundance andnature of the mineral constituents. In all the greatdepths of the ocean, exceeding 2,500 or 3,000 fathoms,Globigerina Ooz
. Science of the sea. An elementary handbook of practical oceanography for travellers, sailors, and yachtsmen. ^DIATOM OOZE @RAOKXARlAN OOZE §R<9 CLAY [Between pp 220, CHART VII.—BOTTOM the larger areas are here shown. OOZES 221 clayey matter coloured by the oxides of iron and man-ganese. This deposit varies greatly in composition bothwith respect to the species of organisms present andtheir relative abundance, and also in the abundance andnature of the mineral constituents. In all the greatdepths of the ocean, exceeding 2,500 or 3,000 fathoms,Globigerina Ooze gives place to Red Clay, even inthose regions where pelagic Foraminifera inhabit thesurface waters in great profusion ; this is ascribed tothe longer time during which the shells are exposedto the solvent action of sea water, while falling throughthe greater depth of water, and while lying uncoveredon the bottom. Globigerina Ooze is estimated to cover an area ofabout 49,520,000 square miles (or 128,824,000 squarekilometres)—, about 22,500,000 square miles in theAtlantic Ocean, about 14,800,000 square miles in thePacific Ocean, and about 12,220,000 square miles inthe India
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectocean, bookyear1912
