DISLOCATIONS—ABBERLEY AND MALVERN HILLS.
423
dered vertical, but are partially bent back, as in this wood-cut, thus presenting thesame phenomena as in the Abberley Hills, though the degree of inversion is less.
a. Syenite. b. Wenlock Limestone removed from the syenite and unaffected.
b*. Wenlock shale vertical and partially bent hack,c. Impure limestone and Caradoc grit overturned.
In the description of the Malvern Hills, Mr. Leonard Horner , with his usual sagacity,remarks upon the singular appearance which these strata present, of dipping towardsthe syenite, where he adds, “ they seem to have been raised not only into a verticalposition, but even thrown back, and in some degree inverted 1 .” The order of super-position of the ancient stratified deposits, was at that period necessarily so incomplete,,that no one could have proved the beds had been overturned; and thus we see the valueof establishing the succession of the Silurian System. The section represented in theabove wood-cut, which is in fact only a part of the coloured section (PL 36, f. 7.), wasrecently laid open by cutting a new road to Mathon Lodge. So long as the Wenlockformation occupies the immediate coast (if we may so speak) of the syenite of the Mal-vern Hills, so far the strata are violently broken and disturbed, particularly on the steepacclivities of the Hereford Beacon, as in this wood-cut.
a. Syenite.
«»•;?'W», f ir . i, a
!i/t ■ , 1 ■ 1 . , 1
\ l‘ t I 1 1 ’ ' I I, * r r f \
, 1 . U, 1 ,1 , ‘ . V 1 I
[l 1 I I , j I • \ , ‘ \ J /.I |
6*. Wenlock Limestone broken and altered.
b. Wenlock Limestone unaltered.
93.
At this remarkable point is a great change in the direction of the strata. They striketo the S.S.E. until they reach the Malvern syenite; and then they are thrown intovertical and disjointed masses, having a north and south strike, accommodated to thewestern flank of the intrusive rock, and finally jut out to the south-west in lowparallel ridges. As the chain of syenite continues its course to the south, whilst,the Wenlock and Ludlow formations diverge to the south-west, the interval betweenthese lines affords space for the elevation of the Caradoc sandstone, which resumesits regular place, dipping conformably under the younger rocks, its lower membersonly being affected by the syenite on which they rest. The transverse section (PI. 36.