Náttúrufræðingurinn - 1975, Síða 45

NÁTTÚRUFRÆÐINGURINN
169
HEIMILDARIT - REFERENCES
Bunsen, R., 1851: Ueber die Processe der vulkanisclien Gesteinsbildung Islands.
Poggendorffs Annalen 83, p. 197—272.
Einarsson, Tr., 1950: Chemical analyses and differentiation of Hekla’s magma.
Eruption of Hekla 1947—1948, 4, 4. Soc. Sci. Islandica, Reykjavik.
Jakobsson, S. P., 1972: Chemistry and distribution pattcrn of recent basaltic
rocks in Iceland. Lithos, 5. p. 365—86.
Kushiro, I., 1969: The system forsterite — diopside — silicia with and without
water at high pressures. Am. Jottr. Sci., 267A, 269—294.
Pálmason, G., 1971: Crustal structure of Iceland from explosion seismology. Rit
40, Soc. Sci. Islandica, 187 p., Reykjavík.
— 1972: Kinematics and heat flow in a volcanic rift zone, with application to
Iceland. Geothermal Departmenl, Energy Authority, Reykjavík (mineo-
graphed).
Sigurdsson, H., 1966: Geology of the Setberg area, Snæfellsnes, Western Iceland.
Greinar 4, 2, Soc. Sci. Islandica, 57 pp.
Sigvaldason, G. E., 1974: The petrology of Hekla and origin of silicic rocks in
Iceland. Eruption of Hekla 1947—1948, 75, 1, Soc. Sci. Islandica, Reykjavík.
Sörensen, H., 1950: An examination of the plagioclases of some Hekla lavas.
Meddelser fra Dansk Geologisk Forening 11, p. 522—542.
Saemundsson, K., 1973: Evolntion of the axial Rifting zone in northern Iceland
and the Tjörnes fracture zone. Geothermal Department, Energy Authority,
Reykjavík, 20 pp. (mimeographed).
Thorarinsson, S., 1954: The tephra fall from Hekla on March 29th 1947. The
Euption of Hekla 1947—1948, 2, 3, p. 1—68. Soc. Sci. Islandica, Reykjavík.
— 1967a: The eruption of Hekla in historical times. The Eruption of Hekla
1947—1948, 1, p. 1—170. Soc. Sci. Islandica, Reykjavík.
— 1967b: Hekla and Katla. The sliare of acid and intermediate lava and
tephra in volcanic products throughout the geological history of Iceland.
In lceland and Mid-Ocean Ridges, Ed. S. Björnsson. Rit 38, p. 190—199.
Soc. Sci. Islandica, Reykjavík.
— 1970: Hekla. 55 p. 54 plates Almenna bókafélagið, Reykjavík.
— and Sigvaldason, G. E., 1972: The I-Iekla eruption of 1970. Bull. Volc. 36,
p. 1-20.
Tómasson, ]., I967a: Mineralogical and petrographical characteristics of Ice-
landic tephra. Eruption of Hekla 1947—1948, 1, p. 171—183. Soc. Sci. Is-
landica, Reykjavik.
— 1967b: Hekla’s magma. In: Iceland and Mid-Ocean Ridges, Ed. S. Björns-
son. Rit 38, p. 180—189. oc. Sci. Islandica, Reykjavík.
Tryggvason, T., 1965: Petrographic studies on the eruption products of Hekla
1947—1948. The Eruption of Hckla 1947—1948, 4, 6, 13 p. Soc. Sci. Is-
landica, Reykjavik.