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FIGURE 5 Ichnofabrics in vertically slabbed cores from wells in the Fram Field area, offshore
Norway (Block 35/11), containing Upper Jurassic (Oxfordian) shelf turbidite deposits. (A) Gravel,
deposited on channelized fans, with abundant sand-filled Thalassinoides ( T ) and an thickly lined
Palaeophycus ichnoclast ( P ) in a deep-tier colonization. (B) Proximal turbidite deposit, with internal
subdivision that can be recognized by multiple colonization surfaces (arrows). Cylindrichnus ( C )
occurring as a discrete trace fossil, while the upper sand layer shows a mottled fabric (mixed zone).
The muddy burrow fills and drapes include Palaeophycus ( P ). (C) Thin-bedded turbidite deposit,
dominated by Scolicia ( S ), interbedded with intensely bioturbated heterolithic shelf sandstone con-
taining minute Planolites , Palaeophycus , and Phycosiphon . (D) Completely bioturbated sandy clay-
stone with Phycosiphon ( P ), Schaubcylindrichnus ( S ), and Teichichnus ( T ).
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