Options
Revision of the Italian magnetic database for the Albegna basin(South Tuscany, Italy)
Language
English
Obiettivo Specifico
1A. Geomagnetismo e Paleomagnetismo
Status
Published
JCR Journal
JCR Journal
Peer review journal
Yes
Title of the book
Issue/vol(year)
/ 57 (2014)
Pages (printed)
G0433
Issued date
2014
Abstract
A comparison between ground level total magnetic field intensity anomaly
map (F) of Italy and the total intensity aeromagnetic map by
ENI/AGIP, had shown that an anomaly pattern for the Albegna basin
(South Tuscany), quite evident from ground measurements, doesn’t show
in the aeromagnetic map. Ligurian units, made of ophiolite blocks
(metagabbros, basalts, serpentinites), intrusives and subordinate volcanic
products, all able to trigger a strong magnetic signal, could not be excluded
in the area, and for this reason the magnetic anomaly estimated by ground
level measurements was not considered unreasonable. In this paper the
result of a magnetic survey finalized to verify the authentic existence of
such a large magnetic total intensity anomaly in the Albegna basin, is reported.
On the basis of the new result, the suspected ground level total intensity
anomaly in the Albegna basin, was demonstrated to be non-existent
and then the Italian Magnetic Database corrected accordingly. Measurements
and procedures that brought to the magnetic elements elaboration
and new anomaly maps for Albegna basin, are shown here.
map (F) of Italy and the total intensity aeromagnetic map by
ENI/AGIP, had shown that an anomaly pattern for the Albegna basin
(South Tuscany), quite evident from ground measurements, doesn’t show
in the aeromagnetic map. Ligurian units, made of ophiolite blocks
(metagabbros, basalts, serpentinites), intrusives and subordinate volcanic
products, all able to trigger a strong magnetic signal, could not be excluded
in the area, and for this reason the magnetic anomaly estimated by ground
level measurements was not considered unreasonable. In this paper the
result of a magnetic survey finalized to verify the authentic existence of
such a large magnetic total intensity anomaly in the Albegna basin, is reported.
On the basis of the new result, the suspected ground level total intensity
anomaly in the Albegna basin, was demonstrated to be non-existent
and then the Italian Magnetic Database corrected accordingly. Measurements
and procedures that brought to the magnetic elements elaboration
and new anomaly maps for Albegna basin, are shown here.
Type
article
File(s)
Loading...
Name
2014-Albegna Basin.pdf
Size
1.97 MB
Format
Adobe PDF
Checksum (MD5)
d3bf983385457c934bbcef5aab531588