DYNAMICS and ACTIVE PROCESSES - International Lithosphere ...

Minerals identification by XRD indicated that
the main minerals are quartz, feldspar, mica
chlorite, smectite (after the treatment of the
samples) and a small quantity of serpentine.
However, minor amount of feldspar is still
SEM-EDS
present in many of the samples (Fig.2), and
trace amounts of calcite and dolomite are also
present in many samples(before the treatment
of the samples with the acids).
As a confirmation of XRD analyses even
under SEM the minerals identified in thin
sections are: quartz, as the main constituent,
dolomite in form of cement, feldspar
weathered into clay minerals (chlorite),
Fig.2 XRD pattern of sample Alb_34 B/22/1 from the study area.
Fig.3 Several minerals identified at thin section no.
Alb_66_01. Q- Quartz; M-Muscovite; Fsp-Feldspars;
Do-Dolomite; I-Ilmenite; R-Rutile; Zr-Zircon
147
biotite elongated like flakes, white dots of
pyrite, muscovite is also present (Fig.4), in its
composition has a considerable quantity of
Mg and Ca, because of dolomite cement. To
notice is the presence of many minerals which
are accessory minerals in igneous rocks, like
ilmenite, monazite, zircon (Fig.3) etc.
Conclusion
Fig.4 EDS spectrum for muscovite.