MIDDLE LIAS: DORSETSHIRE. 
195 
MIDDLE LIAS. 
LOCAL DETAILS. 
Dorsetshire. 
The general character of the Lias cliffs on the Dorsetshire 
coast has already been pointed out (p. 54). In these cliffs the 
Middle Lias exhibits the following subdivisions : 
Upper Lias. Compact pale yellow and pink limestone, joined to the layer 
below, and forming a Junction-bed. 
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11. Brown and greenish-grey nodular 
and iron-shot limestone 
FT. IN. 
9 
Lower Lias. 
10. Grey marly and sandy clays, with 
indurated bands - 10 
9. Yellow and brown'micaceous sanda, 
with huge indurated masses or 
Doggers 50 
8. Bluish-brown micaceous sandy 
clays - - - 16 
7. Hard blue and brown ferruginous 
sandy limestone (Margaritatus- 
stone of Mr. Day) - -10 
6. Blue and grey laminated mica- 
ceous sands and clays, with 
nodules and bands of hard 
flaggy micaceous sandstone 30 
5. Hard bluish - grey shelly and 
sandy limestone, with Penta- 
crinites : in one or two beds 
1 5 to 2 3 
4. Blue and brown micaceous sands, 
clays and sandy marls with 
ferruginous layers and small 
ironstone-nodules, and occa- 
sional nodules or lenticular 
beds of blue limestone - 40 
3. Starfish-Bed. Hard greenish-grey 
micaceous and calcareous sand- 
stone - - - 4 6 
2. Bluish-grey micaceous marl and 
clay, with occasional indurated 
bands and nodules of grey 
earthy limestone - - 155 6 
I. Three Tiers. Three thick bands 
of fissile micaceous and cal- 
careous sandstone, separated 
by micaceous sandy clay with 
concretionary masses of cal- 
^_ ^ careous sandstone - 35 
Green Ammonite Beds. 
345 
N 
