FT-IR ANALYSIS OF LOCAL CLAY AND ARCHAEOLOGICAL POTTERY SAMPLES COLLECTED FROM EDAMANAL, SIRKALI, NAGAPATTINAM DISTRICT.
ANNAMALAI
UNIVERSITY
FACULTY OF
MARINE SCIENCES
Centre of
Advanced Study in Marine Biology
Dr. R.Venkatachalapathy M.Sc., M.Phil., Ph.D.
Professor of
Physics
Ph. 04144 - 243070, 243071, 243223, 243533 Extn 207 (Off) 04144-231229 (Res) Fax. 04144-243555
e-mail: venkatr5@rediffmail.com
FT-IR ANALYSIS OF LOCAL CLAY AND ARCHAEOLOGICAL POTTERY
SAMPLES COLLECTED FROM EDAMANAL, SIRKALI, NAGAPATTINAM DISTRICT.
Fourier Transform
Infrared spectrum of local clay and archaeological pottery samples collected
from Edamanal, Sirkali, Nagapattinam district were recorded. The FT-IR spectrum
of local clay reflects the presence of Kaolinite clay fraction in disordered
form with higher proportion of Quartz. The minerals like calcite and feldspar
are present as tracer quantity. The clay is of coarse grain size with void
spaces, which reflects the higher proportion of sand in the clay.
The FT-IR Spectrum
of black and red ware archaeological pottery shows the similar spectral pattern
with the absence of hydroxyl bands. This shows that the pottery was made of
local clay and fired above 6000C during firing. The outer red color
of the pottery infers that, it was painted with iron oxides and fired in
inverted form. The black inner surface is due to firing materials and air was
not allowed during firing.
Report submitted by
Dr.R.Venkatachalapathy
 |
Res: A/G-Aiswarya Apartment, 22/4, 5
Gayathriamman koil St., Chidambaram-608001
Comments
Post a Comment