264: GILLIGAX : ALLUVIAL DESPOITS AT WOODLESFORD, ETC. 
Rivers Aire and Calder. The material at Woodlesford would represent 
the redistribution of these high level gravels by Oulton Beck. There 
is evidence also of a diversion of Oulton Beck, which flows south-east 
at first, and approaches within a mile of the Calder, which it probably 
formerly entered. But instead of doing so, it now turns due north 
at Lofthouse Gate, turns east again at Rothwell, and flows between 
the gravel patches, where it occupies a valley quite disproportionate to 
the present stream. This diversion could well have been caused by 
the ice which Mr. Lower Carter* believed to have dammed up the 
Calder and formed its valley into a lake. In fact, this seems to be the 
most reasonable suggestion. 
Deposits at Rothwell Haigh and Oultox. 
These were described in 1905 by Mr. E. Hawkesworth in the 
Proceedings of the Yorkshire Geological Society (Vol. XV. p. 456), to 
which reference may be made for the general phenomena and for 
accounts of the types of pebbles which occur. Oiie remark, however, 
with regard to these seems necessary, viz., that a careful search has 
yielded no igneous rock, and in many visits to the similar gravels at 
Newlay, I have been unsuccessful in finding even the smallest fragment 
of igneous rock. This is the more remarkable since in the Memoir of 
the Yorkshire Coalfield, 1878 (p. 779), " trap and flesh-coloured 
granite are recorded in the Glacial deposits at Whinmoor, north east 
of Leeds. I have also carefully searched the new exposures made on the 
south-east side of the Rothwell Haigh deposits — where a very coarse 
gravel is found — but without success as far as igneous rocks are con- 
cerned. Particular attention has been given to the Rothwell Haigh 
patch ot gravel, and many points of interest have presented themselves 
which will amplify the description and record given by Mr. Hawkes- 
worth. The boulder-clay which was mentioned in the paper on The 
Glaciation of the Bradford Area " by Messrs. Jowett and Muff, {Proc. 
Yorks. Geol. Soc, Vol. XV. p. 193), as having been found at Rothwell 
Haigh in making drains, is to be seen at the top of the section near the 
John o 'Gaunt Inn, and though every glacialist would at once recognise 
it as boulder clay, it is satisfactory to note that scratched boulders 
have been found in it, both by Prof. Kendall and myself. 
* W. L. Carter, Proc. Yorks. Geol Soc, Vol. XV., 1905, p. 434. 
