Clayey greensand and hard calcareous green- 1
sand-rock f

Dark and pale blue and brownish clay with )
hard calcareous rock-bands ; dappled and (
streaked with glauconite and polished grains f
of grit and lydite J

Firm smooth pale-brown marly clay with thin )
layers of pisolitic rubble, shining ' millet- f
seed ' ferruginous grains and hard concre- (
tionary rock J

Oolitic limestone

Alternations of calcareous claystone, clayey)
oolitic limestone, muddy grit, bands of marly V
clay and layers of pisolitic rubble J

Grey clay with a few shining ' ironshot ' )
grains, alternating with brown gritty clay >
full of ' ironshot ' J

The ' millet-seed iron-ore ' : — small shining )
brown globules of iron-carbonate crowded (
in a slightly clayey or loamy matrix ; with ("
some calcareous claystone concretions ... )

Hard concretionary rock-band with grains and ~|
rolled fragments of iron-ore, quartz-grit, |
lydites, &c. — 3 ins I

Sandy clay, glauconitic in places, with streaks [
and bands of worn shell-fragments and |
pisolitic rubble J

Laminated clayey sand-rock, showing current
bedding in places: much perforated by
boring organisms

Calcareous claystone bands with thick partings \
of grey and blue sandy clay /

Dark blue and grey clay with silty layers')
(somewhat resembling the Weald" Clay), /
and shelly layers, the latter particularly f

toward the base ... ,..J

on Corallian limestones at



...j
nt-)

by J



10



15



560



18



16



12



26



656



CORALLIAN LIMESTONES : DOVER. 23

In the above section it will be noticed that, as already stated,
the predominant lithological character of the beds representing
the Kimmeridge Clay was the abundance of glauconitic sandy
clay or mud associated with irregular patches oi coarse grit, in-
cluding small polished pebbles up to £ inch in diameter. In the
lower division, classed as Upper Corallian, an oolitic character
was well developed in many of the bands, occasionally in the form
of layers of more or less oolitic limestone, but more frequently
as a curious pisolitic rubble in which rolled pelleis of clay, rounded
fragments of shells, and large oolite-grains were loosely held in a
somewhat clayey matrix, or locally agglomerated into hard con-
cretionary masses which were often riddled by tubular borings
filled in with the different material of an overlying stratum.
