Geomagnetic measurements in 2004 in the Republic of Macedonia

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Geomagnetic measurements in 2004 in the Republic
of Macedonia

• M. Delipetrov, T. Delipetrov, S. Panovska, B.
  Delipetrov

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Abstract

• In this presentation are presented
  geomagnetic investigations on the territory of
  the Republic of Macedonia up to now. Also is
  given tectonic composition which is divided into
  three blocs Eastern Macedonia zone, Vardar zone
  and Western Macedonia zone. The ending part of
  the presentation is performed with the
  geomagnetic measurements during 2004. The network
  of repeat stations is shown.

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Introduction

• After the declaration of independence of the
  Republic of Macedonia, activities started for
  establishing a geomagnetic observatory in the
  country. In that regard, the project entitled
  Establishing a Geomagnetic Observatory on the
  Territory of the Republic of Macedonia According
  to the INTERMAGNET Standards started
  implementation as a joint project between the
  Faculty of Mining and Geology - Department of
  Geology and Geophysics and the Royal
  Meteorological Institute - the Observatory in
  Dourbes.
• Project leaders are Prof. Dr. Todor Delipetrov
  and Dr. Jean Rasson.

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Historical data on the geomagnetic field study

• During the sixties, the territory of Yugoslavia
  was overhauled with a relatively thick
  terrestical net of stations and a map on the
  vertical Z component was made in Yugoslavia, with
  a scale of 1 500.000.
• Following the period after 1997, the project
  Europe Magnetic Project (EEMP) was realised, and
  in that frame, Report 8 is included for
  Macedonia, with the cooperation with GETECH -
  Geophysical Exploration Technology (reference).

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Map of vertical Z component of Macedonia
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Tectonic setting of Macedonia

• The Macedonian territory belongs to the Dinarian
  and Rodopian system.

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Regional tectonic setting of the Republic of
MacedoniaI - Cukali Krasta zone, II - Western
Macedonian mass, III - Pelagonian
horstanticlinorium, IV - Vardar Zone, V - Serbo
Macedonian massif, VI - Kraishtide Zone
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Neotectonic map of Republic of Macedonia
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Geomagnetic research

• For a complete following of the geomagnetic field
  on a given territory, a basic net of stations for
  periodical measurements is needed and a
  geomagnetic observatory which permanently
  measures the chronological changes in the
  geomagnetic field.
• For the defining of the coefficients for
  dependency of the geomagnetic field from a
  geographic longitude and latitude on a given
  territory, a relatively homogenous net of
  geomagnetic stations is needed. Performed extent
  terrain analysis during the realization of the
  project, made possible the defining of 15 places
  on the territory of Macedonia, which consist the
  net of geomagnetic stations.
• The basic net of geomagnetic stations serves for
  periodic measurements of those places on a time
  frame from 3-5 years on a base from the following
  equitation below and a model is defined of the
  values of the elements from the normal
  geomagnetic field is defined

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• In August 2004 measurements of D, I and F were
  carried out on the grid of repeat stations. The
  names and the geographic coordinates of the 15
  repeat stations are given, and the maps are shown
  below.

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Measured and calculated parameters of the
geomagnetic field in 2004 and GPS data
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Map of repeat stations on R. Macedonia
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Map of measurements carried out in 2004 on the
existing network of repeat stations D
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Maps of measurements carried out in 2004 on the
existing network of repeat stations I
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Maps of measurements carried out in 2004 on the
existing network of repeat stations F
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Measurements carried out in 2004 on the existing
network of repeat stations have been presented in
maps. Each component varies within those intervals
Max. and min. values of repeat stations
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Conclusion

• Analysis of the presented maps shows that the
  declination is most susceptible on the local
  changes in the geological structure of the
  terrain. Global neotectonic setting has its own
  part on map in the total field T, while the same
  thing is far less expressed on the map of
  inclination I.
• Contributed maps from the measurements in 2004
  are a good basis for profound analyses of the
  geomagnetic field, when at the same time they can
  serve to a wide spectrum of useful informations.