21 
DEPOSITED IN WATER. 
reliquia; are plentiful ; calamine has been worked in the hill W. of 
Whitewell, not in a vein, but in the joints and cavities of the rock : 
lead ore has been wrought at Dunsop. 
Parallel to the axis of these large oval tracts is another singular 
anticlinal ridge of limestone, at a place called Sykes, on the road leading 
from Whitewell to the trough of Bolland : the distance between these 
axes of elevation being about three miles. An observer proceeding 
on the road towards the trough of Bolland, finds the strata of gritstone 
and shale dipping N. W. (the road rising in that direction), till within 
a small distance of Sykes, the dip is then suddenly reversed ; beds of 
shale pass out from under the grits ; limestone rocks rise beyond at a 
high angle to a considerable altitude, and again descending as rapidly 
to the N. W., are covered by the same shales, over which, in the hills 
around, are the ordinary grit rocks. What makes this interesting case 
more curious, is the occurrence of a sparry lead vein, precisely in the 
summit of the anticlinal ridge of limestone. The range of this vein 
seems to be nearly N. N. E. ( See Diagram, No. 4.) The limestone 
is clierty, and has interposed short beds of calcareous spar and pearl 
spar. At Ash Knot, two miles from the Slaidburn limestone, on the 
S. E., is another detached mass of lower limestone, also exhibited by 
dislocation, and marked by the occurrence of lead veins. 
Approaching the valley of the Ribble, we find at Widgill, near 
Bashall, another detached mass of lower limestone, with abundance 
qf fossils. 
Ribblesdale . — In Lower Ribblesdale, the principal mass of this lower 
limestone lies about Clitheroe, where it shews itself in the castle hill 
and other points, ranging N. E. toward Downham and Rimmington, 
and dipping S. E. toward the ridge of Pendle hill. The Ribble flows 
in limestone from near Gundleton to above Eadsford bridge. 
Most of the laminated dark limestones of Craven appear as 
much connected with the shale above, as with, this lower member 
of the mountain limestone series. They may, in fact, be considered 
