Table 2

Scytonemin Raman band shifts collected in the eight studied layers at 785 nm laser excitation wavelength (SCY1 to SCY8 represent spectra in the eight studies progressively older layers). There is no relationship between the position of the individual scytonemin bands and the depth profile in the different layers and two different assignments may be present in the same layer or the same assignment may be valid in different layers.

SCY-1
SCY-2
SCY-3
SCY-4
SCY-5
SCY-6
SCY-7
SCY-8





1711w
1711w
1711w
1711w

1630vw


1630vw








1629w
1629w

1627vw


1627vw











1624vw
1605sh
1605sh
1605sh
1605sh
1605sh
1605sh

1605sh






1603sh

1592vs
1592vs








1591vs


1591vs





1590vs
1590vs

1590vs








1589vs
1555s
1555s










1554s
1554s




1552s








1551s


1551s








1549s
1436s
1436s

1436s
1436s
1436s
1436s



1435s




1435s
1385m

1385m
1385m





1384m


1384m
1384m








1383m
1383m



1325s






1324s










1322s
1322s

1320s
1320s


1320s


1320s





1280m-w
1280m-w





1278m-w










1277m-w






1249w






1245m-w









1243m-w




1242m-w



1176vs








1175vs








1174vs








1173vs








1171vs








1170vs








1167vs








1165vs






1095w
1095m




1090w
1090m








1026vw

1024vw






1024w




1023vw
1023w





984w




983w
983m
983m



983m





982m
982m

982m



910vw




909vw
909vw
909w









908w
908w

908w






907w




890vw





889vw
889w





887vw




887w
887vw
887w




886w









779w



778w

778vw
778w









777w
754w


754m





753w








752m

752m
752m
752m
752m

680vw






677vw


677m






676m

676m
676m








675m
675m

662w








660w









659w
659w








658vw
658w





637vw
637vw


578w









576m




575w

575m









574m
574m
574m
574m

499m-w






497vw

497m-w



497w
497m-w





496m-w





495m-w
495m-w








437w






392w
392w









390w

Jorge-Villar et al. Geochemical Transactions 2007 8:8   doi:10.1186/1467-4866-8-8