Jökull - 01.12.1957, Blaðsíða 34

fellsjökull to try to get a second set of figures
for comparison. Much of the survey still has
to be worked out. My object has been to bring
to notice some of the peculiar features of the
ogives on these glaciers of South-East Iceland
which are worthy of further study, and to put
fcrward the theory that occurred to us in the
field, fully realising that further evidence may
radically alter the explanation given.
REFEREN CES
1. Thorarinsson, S. 1952: Svigður á Morsár-
jökli. Jökull, 2:22-25.
2. Thorarinsson, S. 1953: Svigður á Svínafells-
jökli. Jökull, 3:39—40
3. Ives, J. D. and King, C. A. M. 1955: Glacio-
logical observations on Morsárjökull, Part
II. Journal of Glaciology, 2:477—82.
4. Ives, J. D. and King, C. A. M. 1956: Glacio-
logical observations on some of the outlet
glaciers of S.W.Vatnajökull. Part I. Journal
of Glaciology, 2:563—569.
5. Ives, J. D. and King, C. A. M. 1954: Glacio-
logical observations on Morsárjökull, Part
I. Journal of Glaciology, 2:423—428.
6. Ives, J. D. and King, C. A. M. 1956: Glacio-
logical observations on some of the outlet
glaciers of S.W.Vatnajökull. Part II. Journ.
of Glaciology, 2:646-651.
7. Nye, J. F. 1952: The mechanics of glacier
flow. Journal of Glaciology, 2:82—91.
8. Forbes, J. D. 1859: Occasional papers on
the theory of glaciers. Edinburgh.
9. Haefeli, R. 1951: Some observations on
glacier flow. Journal of Glaciology, 9:496
-498.
10. Chamberlin, R. T. 1928: Instrumental stu-
dies on tlie nature of glacier motion. Journ.
of Geology, 36:1—30.
11. Lewis, W. V. 1949: Glacier movement by
rotational slipping. Geografiska Annaler,
31:146-58.
12. Miller, M. M. 1952: Preliminary notes con-
cerning certain glacial structures and glaci-
al lakes on the Juneau Ice Field. Juneau
Ice Field Research Project, Report No. 6,
1952, p. 49-86.
13. Glaciological studies on Austerdalsbreen,
Norway, 1955—57. Paper submitted to the
International Commission on Snow and
Ice (International Union of Geodesy and
Geophysics) at Toronto, September, 1957.
Á G R I P
Sumarið 1957 dvaldist hópur stúdenta frá
Cambridge háskóla við rannsóknir á Svínafells-
jökli og öðrum skriðjöklum í Orcefum. Aðal-
viðfangsefnið var að mcela svigður á Svínafells-
jökli og gera sér grein fyrir myndun þeirra.
í ofanritaðri grein birtir G.R.Elliston bráða-
birgðaskýrslu um þessar rannsóknir og rceðir
hugsanlegar skýringar á myndun þeirra svigða,
einfaldra og margfaldra, sem þeir félagar at-
huguðu á Svínafellsjökli, Morsárjökli og Fall-
jökli.
32