The Laboratory of Geochronology and Isotope Geochemistry of IGG-CNR
(Italy) provides an integrated system of expertise, instrumental
facilities and analytical protocols, suitable to accurately carry out:
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geochronologic data by means of 40Ar–39Ar radiometric dating of
potassic glasses and mineral, archaeomagentic dating of volcanic
deposits and fiery structures, fission track analysis on apatite and
zircon:
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isotopic analysis of a wide variety of solid and aqueous matrices
thanks to the availability of TIMS and MC-ICPMS techniques.
The analytical skills of the IGG-CNR of Pisa2 are related to
archaeomagnetic dating. The laboratory include an induction magnetometer
with large cell; four sampling-in-the-field sets; sample conditioning
and measurement facilities.
Methods and Expertise
Archaeomagentic dating of volcanic deposits and fiery structures. The
method produces archaeomagnetic age by directional analyses on volcanic
and archaeological materials. The technique used is the BSPM (Big Sample
Plaster Method) based on the measurement of Inclination and Declination
vectors the magnetic minerals inside samples acquired at the moment of
the passage under the Curie Temperature. Archaeomagnetic dating is a
powerful tool for the reconstruction of the chrono-stratigraphy of
recent (up to 10.000 years BP) volcanic activity, and able to produce
very good quality absolute ages of fiery object (typically furnaces) of
archaeological interest.
