Environmental Engineering Reference
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FIGURE 7
Bioturbational structures in deposits containing organic matter. (A-C) DSDP Site 605
(38
45.5
0
N, 72
36.6
0
W, 2,194 m water depth); (A) core 57-1, 99-124 cm; (B) core 51-2,
88-100 cm; (C) core 63-4, 110-118 cm. (D) Helminthoid Flysch (Weissenburg, Switzerland).
(E) Late Cretaceous marls (F¨hneren area, Switzerland). (F) So-called
Zoophycos
Beds (Middle
Jurassic, Blumenstein, Switzerland). (G) ODP Site 718C (30
50.4
0
N, 67
38.9
0
W, 5,124 m water
depth, core 94X1, 23-26 cm). Multiple cross-cutting relationships suggest a multitiered, vertically
extended bioturbated zone.
Ch
,
Chondrites
,
N
,
Nereites irregularis
(formerly
Helminthoida laby-
rinthica
),
P
,
Planolites
,
Ta
,
Taenidium dieslingi
,
Th
,
Thalassinoides
,
Z
,
Zoophycos
.
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