Geology Reference
In-Depth Information
Fig. 21.29
Stratigraphic nomenclature and facies stratigraphy of
the Lower Triassic lower member of the Elika Formation in the
Veresk section of the Alborz Mountains (locality 2 in Fig.
21.25
).
Typical small-scale shallowing-upward cycles are shown to the
right of facies column. Note that intertidal facies caps the small-
scale cycles in the upper part of the highstand systems tract.
Abundant storm facies (see the shallowing-upward cycles a through
(
c
) indicate frequent storm conditions during the deposition of
the lower Elika depositional sequence. Black and gray triangles
represent transgression and regression, respectively. Abbreviations:
HST
highstand systems tract;
mfs
maximum fl ooding surface,
SB
sequence boundary,
TST
transgressive systems tract
