1873..
JTTDD THE SECOND ART ROCKS OF SCOTLAND.
125
of white sandstone at the base, and in another part of clays and
argillaceous grits, with much vegetable matter. They lie in part
Fig. 7. — Section across the Reefs at Port-an-liigli, along line * *
of the Plan (see fig. 6).
S.E.
FAULT.
N.W.
a. Beds of Old Eed Sandstone, dipping N.E.
b. Shales and limestones of the Middle Oolite, dipping S.E.
c. Boulder-clay, capping Old Bed Sandstone in the cliffs.
against the contorted Silurian rocks, and in part against the highly
inclined strata of the Old Eed Sandstone, though the actual contact
-Section across Shore and Reefs at CacW-an-Righ, along
the line f f of the Plan (see fig. 6).
Old Eed
Sandstone.
Lower
Oolite.
Middle
Oolite.
e J V
a. Old Bed Conglomerate.
h. Old Bed flaggy sandstones.
(Talus.)
c. White sandstones and light blue clays (estuarine).
d. Alternations of variegated clays, sandstone, and argillaceous
limestone (freshwater fossils).
e. Shelly bands and clays (mixture of freshwater and marine shells
and numerous plant-remains).
/. Thin coal-seam.
g. Sandstone with many marine fossils (" Boof-bed ").
h. Sandy clays with marine fossils.
k. Dark blue clays with septaria (marine fossils).
is concealed by the shingle of the beach. One of the shafts (the