Jökull - 01.12.1985, Qupperneq 61

Fig. 6. A simplified figure showing
the main structural features of the
Vellir thermal field.
6. mynd. Einfaldað líkan af Vellis-
hverasvœðinu..
exploitation of wells at Baer (Georgsson et al. 1981b)
implies that the conservation of the Vellir geyser must
be extended to the whole thermal field to be effective.
Enforcement of this would prohibit drilling along the
Vellir line. At Sturlu-Reykir and along the Hagahús line
production from wells would probably have to be
limited to free flow.
ACKNOWLEDGEMENTS
This work was financed by the Geothermal Division of
NEA. We wish to express our thanks to Karl Gunnars-
son for his assistance in interpretation of the magnetic
data and to Laufey Hannesdóttir for measuring the flow
of the Reykjadalsá river.
REFERENCES
Einarsson, T. 1937: Uber eine Beziehung zwischen
heissen Quellen und Gángen in der islándischen
Basaltformation. Soc. Sci. Islandica, Greinar 1.2:
135-145.
Georgsson, L. S., H. Jóhannesson, G. I. Haraldsson
and E. Gunnlaugsson 1978: Jarðhitakönnun í utan-
verðum Reykholtsdal. Report in Icelandic, National
Energy Authority, OSJHD7856, 89 pp.
Georgsson, L. S., H. Jóhannesson and E. Gunnlaugs-
son 1981a: The Baer thermal area in western Ice-
land: Exploration and exploitation. Geoth. Res.
Council, Transactions 5: 511—514.
Georgsson, L. S., H. Jóhannesson, E. Gunnlaugsson,
M. Kjartansdóttir, H. Sigvaldason, Th. Thorsteins-
son and G. 1. Haraldsson 1981b: Bær í Bæjarsveit,
jarðhitarannsóknir og boranir. Report in Icelandic,
National Energy Authority, OS81014/JHD09, 156
pp.
Georgsson, L. S., H. Jóhannesson, E. Gunnlaugsson
and G. I. Haraldsson 1984: Geothermal exploration
of the Reykholt thermal system in Borgarfjördur,
West Iceland. Jökull 34: 105-116.
Gudbergsson G., J. Eiríksson, J. E. Eyfjörd and Ó. Ö.
Haraldsson 1971: Jarðfræði Reykholtsdals. Report
in Icelandic, University of Iceland, 24 pp.
Gunnlaugsson, E. 1980: Borgarfjörður, efnafræði jarð-
hitavatns. Report in Icelandic, National Energy
Authority, OS80020/JHD11, 61 pp.
Jóhannesson, H., L. S. Georgsson and E. Gunnlaugs-
son 1980: Jarðhiti í Borgarfirði. Proceedings of a
conference on Geothermal exploration held by the
Geological Society of Iceland (in Icelandic): 14-16.
Pálsson B., H. Jóhannesson, H. Kristinsson and V.
Gunnarsdóttir 1971: Jarðfræði Síðufjalls og Hurðar-
baks. Report in Icelandic, University of Iceland, 32
pp.
Thoroddsen Th. 1910: De varme kilder paa Island,
deres fysisk-geologiske forhold og geografiske
udbredelse. Oversigt. Kgl. D. Vidensk. Selsk.
Forhandl. No. 2-3: 97-153 and 183-257.
JÖKULL 35. ÁR 59