'Institute of Geological Sciences of the National Academy of Sciences of Ukraine'
Abstract
An airborne magnetic, electromagnetic and radiometric survey was
carried out over part of Anglesey, North Wales. In this report
of the survey, an outline of the geology, with brief descriptions
of survey techniques, data reduction and presentation are given.
General descriptions are presented of four areas of distinct
magnetic character, with interpretations of the more prominent
anomalies such as those associated with the Carmel Head Thrust,
with Tertiary dykes and with various hornfels bodies.
Possible extensions of known ultrabasic bodies and areas where
other such potentially mineralised bodies may be concealed have
been shown, in particular near Llandyfrydog (SH 44 85)and near
the coast south of Valley (SH 31 76).
The electromagnetic survey data are not described in detail
because radio transmissions caused strong anomalies unrelated to
the geology and masked most of the real anomalies. Those
anomalies which remained were due largely to man-made objects.
Examination of the radiometric traces showed no indication of
uranium mineralisation or any other substantial concentration of
radioactive elements
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