Náttúrufræðingurinn - 1991, Page 61

SUMMARY
New aeromagnetic maps
of Iceland
by
Geirfinnur Jónsson and Leó Kristjánsson,
Science Institute,
University of lceland,
Dunhaga 5,
IS-107 REYKJAVÍK,
Iceland.
This paper outlines the aeromagnetic
method used in geophysical surveying.
The most common types of magnetometer
and positioning devices are discussed
briefly, as well as the main geological fea-
tures which may be investigated by this
method in basalt areas. We describe the
historical development of this subject in
Iceland, which is treated in more detail in
our previous publications (see reference
list), and we present a simplified map of
positive and negative anomaly lineations
(Fig. 3). The main technical improvement
in these surveys in recent years has been
the introduction of GPS navigation in
1991.
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