294, RECORDS OF POST-TRIASSIC CHANGES 
more and more decayed until at the contact the rock is so loose 
and unconsolidated that it will scarcely hold together to form a 
hand specimen. 
Sandstone and Impure Limestone. 
The lower layers of the calcareous formation are largely 
made up of this disintegrated material but it is not found more 
than two or three feet from the contact. These lower layers 
are poorly defined and conform to the minor inequalities of the 
eroded surface of the Trap. The Trap debris then gives place 
to a fine grained light grey to green sandstone with calcareous 
cement, in thin laminae, which is overlain by beds of impure 
limestone from one to three feet thick alternating with thinner 
layers containing flint-like quartz bands. At one spot in Broad 
Cove a brown sandstone in beds three or four feet in thickness 
is seen overlying the limestone. The maximum thickness of 
this sedimentary formation would be ebout twenty-tive feet. 
Altho several brooks cut across these beds at right angles, in 
only one can the limestone be traced, and there for a distance of 
but twenty or thirty yards from the beach where the trap 
appears in the bed. The other brooks have cut completely 
through and flow over the underlying trap until the beach is 
reached. This shows how little remains of what must have been 
an extensive formation and explains in part why it remained so 
long unnoticed. 
The dip of these beds is, at first, somewhat confusing. On 
the north-east sides of the coves it is always to the south-west, 
and at angles as high as twenty degrees. On the south-west 
sides of the coves it is correspondingly high to the north-east. 
In the bed of the brook mentioned, which is in the centre of one 
of the coves, the dip proved to be from three to five degrees to 
the north-west. At several places the trap was visible beneath 
the apparent synclines and showed no corresponding deformation. 
Moreover, the variable inclination of the layers was there seen 
to be that of the contact surface of the trap on which they rest. 
As the layers recede from this surface they become more uniform 
in inclination which is seen to be to the north-west at an angle 
