Jökull


Jökull - 01.12.1961, Page 7

Jökull - 01.12.1961, Page 7
2 — 3— 4— 5 — SECTION THROUGH A SNOW PIT DUG ON VATNAJÖKULL JUNE 14.1960. Position: Lat. 64°26‘06'j long. I7°09' 23" 1614 m o.s.l. PARTOF PIT WALLS COLOURED SPEC. GRAV. -0,50 -0,53 -0,54 -0,58 -0,55 —DUST Autumn surfocn 1959 2 KEY: FINE-GRAINED SNOW COARSE-GRAINED SNOW LAYERS AND LENSES OF ICE VEINS OF PERCOLATING MELT-WATER MADE VISIBLE BY POTASSIUM PERMANGANATE DYE Mynd 3. Snjógryfja 6 km NA af Grímsvötnum 14. júní 1960. Snoiu Pit 6 km NE of Grimsvötn Jnne 14, 1960. 260—320 Fínkornóttur snjór, þurr s/4 hlutar. Hitinn í þurra snjónum við 280 cm var — 0,4 °C, en í litartaumunum, blauta snjónum, sem tóku um 25% af flatarmáli gryfjuveggjanna, mæld- ist hitinn 0,05 °C. 320—323 íslag. Efri hluti þess settur saman úr mörgum íslögum með örsmáum loft- bólum, en í neðri hluta íslagsins var skástæð lagskipting. Litárefnið hafði hlaupið eftir íslaginu, og það var allt rautt í gegn. 5

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Jökull

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