TRANSACTIONS
OF THE
HULL
GEOLOGICAL
SOCIETY
REPORT OF EAST RIDING BOULDER
COMMITTEE,
LOUTH (Lincolnshire).
Brick pit in James Street, section of boulder clay 5° feet in depth. Many boulders of usual types. Mountain limestone in large blocks, striated. Among boulders collected fl-om the lower 2o feet of pit the following occurred :-- Augite syenite, (Laurvigite of Brogger) 2" by 6" by 6" (rounded). Rhomb porphyry. Small boulder, Scandinavian type. (The section shewed two distinct beds of clay).
HOLDERNESS. Dr. Munthe, of Upsala University, recognised, in Mr. J. W. Stather's collection of rocks from the Holderness clays, one specimen of undoubted Baltic origin, and another of which he had little doubt.
(1) Postarchaen granite from Angermanland or S. W. Finland. (Aland ?) ,
(2) Halleflinta, Sweden. Smaland (?) t-porphyry.
HOLDERNESS and SOUTH FERRIBY. The chalk belemnites fairly common in the boulder clays here have been determined by Mr. Jukes Brown as Belemnitella lanceolata (Sehlotheim). This belemnite is not recorded from the Yorkshire Chalk. But Bel. quadrata which is exceedingly plentiful in Upper Chalk of Yorkshire, is not seen in the clays.
SCARBRO' Dr. F. F. Walton noted a boulder of Estuarine Sandstone 4' 3" x 3'
' x
x in
the Castle yard where the cliff was being scarped for the new road.
[Note -This article has been scanned in from original printed format and then put through an OCR program by Mike Horne. The process may have introduced some new spelling errors to the texts. Some original misspellings have been corrected.]
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