Jökull


Jökull - 01.12.1985, Page 70

Jökull - 01.12.1985, Page 70
Cumulative % Finer TABLE 2. Mean sizes of largest clasts at sites along deposit (in mm ± 1 standard deviation, n=10 at each site) TAFLA 2. Meðalstœrð stœrstu bergmola í hlaupinu. Distance from gully Size Distance from gully Size source (m) source (m) 10 (GLJ2&3) 39.2F5.35 150 (Nr. GLJ4) 14.0±2.31 22.5 33.0±12.97 170 17.7±5.11 52.5 21.8±3.71 205 18.7±2.21 70 12.9±2.4 240 (GLJ5) 12.0±2.83 77.5 15.4±5.6 260 17.0±2.40 82.5 19.3±2.8 275 12.8±1.23 110 18.9±2.88 285 11.0±1.05 120 16.4±3.69 290 14.6±1.17 Fig. 4. Particle size curves for samples from the deposit compared with earlier samples taken from the till in Gljúfurárdalur. — 4. mynd. Kornastœrðardreifing sets í Gljúfurárdal. REFERENCES Briggs, D., 1977: Sources and Methods in Geography: Sediments. Butterworths, London. 192 pp. Caseldine, C.J., 1983: Resurvey of the margins of Gljúf- urárjökull and the chronology of recent deglaciati- on. Jökull, 33: 111-118. Caseldine, C.J., 1985: The extent of some glaciers in Northern Iceland during the Little Ice Age and the nature of recent deglaciation. Geographical Jour- nal, 151, in press. Caseldine, C.J. and R.A. Cullingford, 1981: Recent mapping of Gljúfurárjökull and Gljúfurárdalur. Jök- ull, 31: 11-22. Eythórsson, J., 1956: Jöklabreytingar 1954/55 og 55/56. Jökull, 6: 35. Eythórsson, J., 1963: Variations of Icelandic glaciers * 1931-1960. Jökull, 13: 31-33. Goudie, A., 1981: Geomorphological Techniques. Ge- orge Allen & Unwin, London. 395 pp. Matthews, J.A. and Shakesby, R., 1984: The status of the Little Ice Age in southern Norway: relative-age dating of Neoglacial moraines with Schmidt hammer and lichenometry. Boreas, 13: 333—346. Miiller, H-N., 1984: Spátglaziale Gletscherschwank- ungen in den Westlichen Schweizer Alpen und im Nordislándischen Tröllaskagi — Gebirge. Buchdruck- erei Kung AG, Náfels. 205 pp. Rist, S., 1977: Jöklabreytingar 1964/65—1973/74 (10 ár), 1974/75-1975/76 (2 ár) og 1976/77. Jökull, 27: 88- 93. Rist, S., 1983: Jöklabreytingar 1964/65—1973/74 (10 ár), 1974/75-1980/81 (7 ár) og 1981/82. Jökull, 33: 141- 144. Accepted 20th June 1984. 68 JÖKULL 35. ÁR
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