Porifera-microbialites of the Lower Liassic (Northern Calcareous ...

Plate 16
Adnet / Eisenmann Quarry –
Outcrop and features of the Triassic-Jurassic boundary section at the top of Adnet reef.
(A): View over the southern part of the outcrop where limestones of the Triassic coral reef core
were extensively quarried. On its top, Liassic sedimentation scarcely occur as a small cover
of red Adnet facies (arrow, zone of Schlotheimia marmorea).
(B): Red Adnet limestone from the top of Eisenmann Quarry.
(C): Adnet facies with skeletal remains of collapsed sponges.
Adnet / Tropf Bruch –
Facies of the uppermost Triassic reef core limestone.
(D): Sawn slab of reef core facies (Tropf Marmor) with sections of large coral bushes. Gaps and
interstices in the reef framework are closed by reddish sediments of Upper Triassic or
Lowest Liassic age.
(E): Pelsparites with small intraclast from the interstices of Triassic reef core framework.
(F): Stromatactis cavities and biomicrites from the interstices of Triassic reef core framework.
Sediment encloses several fragments of vertebra of pelagic crinoids.