Concluding remarks
the foregoing discussion on the Badmal asurgarh site clearly
reveals that the rich bio-habitat and the vast mineral resources
of the region have attracted human occupation right from
the beginning of the first millennium Bce. the settlement
developed out of the existing iron age cultures of the middle
Mahanadi Valley, and rose to prominence during the early
historic period as a bead manufacturing centre in this part
of the orissa highlands. domestic trade was perhaps one of
the important factors in this process of development. this
study had revealed that, in addition to locally available gem
resources for manufacturing beads for regional and extra-
regional trade or exchange, the early historic bead workers
of Badmal also imported cowry shells and finished items
of onyx and coral from more distant places. iron definitely
played a catalytic role in the development of the specialised
bead industry at the site, as attested by the iron tools that
were employed to craft the beads. Presumably in exchange
for finished beads, the settlers were importing iron objects,
as well as other raw materials, such as banded-hematite-red-
jasper, agate, etc. for large-scale bead production.
the chemical analysis clearly indicates a non-meteoric
origin of the analysed iron samples. While the uniform
distribution of slag inclusions is indicative of wrought
iron, one of the specimens may be identified as low carbon
steel. the earliest iron object, sample BdM-18, is definitely
primitive in terms of the technology employed for its making.
in table 4, while the composition of each iron object is shown,
the values of aluminium contents, which are considered as
essential constituent of the entrapped slag particles, are not
shown. the total slag contents, therefore, may be identified
as 3.59, 1.574, 2.37, and 2.79 per cent, respectively. this is
clearly indicative of technological improvements regarding
the elimination of slag particles between the iron age and
early historic periods. not only did we find an increase in
craft-related tool types, but the introduction of low carbon
steel making is also visible during the post-iron age period.
it is often mentioned that the iron age smiths of the indian
sub-continent applied ‘layering and forging techniques’.
one of the recent advancements in making modern steel
and alloy steels has been the use of micro-alloy. the presence of
vanadium and chromium in three of the four analysed samples
of Badmal is attested in the results of the PiXe analysis. thus
one may conclude that the smiths realised the characteristic
capability of the ores was the potential of producing tough
steels, with which they needed to manufacture drill bits
(chattopadhyay et al., 2011)
Future investigations will definitely shed more light on the
various aspects of the state of iron technology in the pre-
christian era middle Mahanadi Valley of orissa highlands.
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