ONOMfC PATHVk AYS IAL ICHNOFAUNAS
V«tfU«i3 bummt and cbcapeteaoes
CHANNEL REACTJ'vATJON
DesccarrAt
%ś;li deflned traces in iiubtiae.rged sofegf-;>ia'ići
LU* DJ5CB ARGE 70 AB A*»'DONED CHANNEL
Poorly deflned tracę* in w.ater-satmaied substóates
FIGURĘ 17-6 Taphonomk pa thways of fluvial ichnofaunas showing transitions between difłerent channes ano tnerbar * trać* fesol suites. Substrate oonsolidation plays a major role in controDing ichnofacies occurrence, \fertical biBrws and escape traoesane dominant in aetive channełs (Skoliłhos ichnofaciesi. During channel abandonment or periods of kw discharge, merascMe bum?Hx are emplaced in channel deposits (Scoyenia ichnofacies) commoniy crosscutting the pjwkms suitę. 11 channel neactnanon 3*
nrodured. the SkcMihas, irhru»t rc-oŁłaMtci-.*.*-* L£ ■» u'at«r k, >. o ■ .L l>rm«.w4 Lu ti»j <limninLłin. oot>riv defwed crazm-g arw.