<<

Quemerford:, Whetham, Mile End: Ampthill Setting: As Setting (2) Clay Formation And Kimmeridge Clay Formation (undifferentiated) - Mudstone. Bumpers Farm, Allington, Easton, Sedimentary Bedrock formed approximately Hungerdown: Cornbrash Formation - 151 to 161 million years ago in the Jurassic Limestone. Sedimentary Bedrock formed Period. Local environment previously approximately 161 to 168 million years ago in dominated by shallow seas. the Jurassic Period. Local environment previously dominated by shallow carbonate Setting: As Setting (2) seas.

Calne: Stanford Formation - Limestone. Setting: As Setting (3) Sedimentary Bedrock formed approximately 156 to 161 million years ago in the Jurassic Yatton Keynell, West Yatton: Forest Marble Period. Local environment previously Formation - Mudstone. Sedimentary Bedrock dominated by shallow carbonate seas. formed approximately 165 to 168 million years ago in the Jurassic Period. Local environment Setting (3): shallow carbonate seas. These previously dominated by shallow seas. rocks were formed in warm shallow seas with carbonate deposited on platform, shelf and Setting: As Setting (2) slope areas; often rich in corals and shelly faunas. May include evaporites where Ford: Forest Marble Formation - Limestone. seawater was trapped and salts concentrated Sedimentary Bedrock formed approximately by evaporation. 165 to 168 million years ago in the Jurassic Period. Local environment previously , Studley, : Hazelbury Bryan dominated by shallow carbonate seas. Formation - Sandstone. Sedimentary Bedrock Setting: As Setting (3) formed approximately 156 to 161 million years ago in the Jurassic Period. Local environment previously dominated by shallow seas.

Setting: As Setting (2)

Stanley, Tytherton, Ratford, : Formation And Oxford Clay BREMHILL Formation (undifferentiated) - Mudstone. Sedimentary Bedrock formed approximately 156 to 165 million years ago in the Jurassic Judy Hible Period. Local environment previously dominated by shallow seas. The parish of Bremhill contains a collection of smaller parishes in valleys with Bremhill Setting: As Setting (2) prominent on a hill. The smaller hamlets are , , Foxham, , Lowden: Kellaways Sand , , Stanley and Bremhill Wick. Member - Sandstone. Sedimentary Bedrock It is in the Diocese of Salisbury, Archdeaconry formed approximately 161 to 165 million years of and the rural deanery of Avebury. ago in the Jurassic Period. Local environment The village lies two miles north west from previously dominated by shallow seas. and four from .

Setting: As Setting (2) Bremhill is located on Wick Hill, a corallian escarpment which falls sharply to the valley of Hill Corner, Hardenhuish Lane: Kellaways the river Avon. The geology is from the upper Clay Member - Mudstone. Sedimentary oolite, providing loam, brash and clay soil. Bedrock formed approximately 161 to 165 The Wiltshire and Berkshire Canal ran through million years ago in the Jurassic Period. Local the centre of the parish from the north east to environment previously dominated by shallow the south west. seas.

Journal of the Bath Geological Society, No. 34, 2015 12

William Lisle Bowles – The parochial and Conybeare’s geological work as – history of Bremhill in the county of Chambered univalves: Ammonites Wiltshire 1828 calloviensis. Nautilili & Belemnites. “Let us – for to pass this village without Univalves, not chambered: Rostellaria noticing its natural history would be Bivalves: Cardita deltodea, Chama digitalis, unpardonable – let us take up one of the Gryphaea incurve, Pecten fibrosus, stones before us, with which the high-way is Plagoastoma obscura. Avicula inequivalis, being repaired; it is full of small but distinctly Terebratula ornithocethalus. The grypheae marked sea-shells! Break it, and a greater are that kind of large shells of the petrified profusion of these small marine shells start oyster, of which there exists no living out. The shelly limestone with which the specimen. roads round Tytherton are mended, is quarried near Kelloway’s-bridge, and has The belemnites, unlike the heavy genus of thence obtained from geologists the name of the oyster tribe, exhibit elegant and polished the Kelloway’s rock. It is found in beds of spicula, resembling the flint heads of arrows. considerable thickness enclosed in or in Nay, before science became so much more geological phrase, subordinate to the great accurate and conversant with the works of Oxford clay formation, which composes the nature, these have been thought to be the surface of the vale of the Avon from artificial flint-heads of the arrows of the Malmesbury southward, as far as Melksham. aboriginal Britons. They are now known to be It has been much noticed from the the shells of fishes, and these before us, with circumstance of it containing these peculiar those above specified, are peculiarly and characteristic shells not yet met with in distinguished by geologists.” any other spot. Bremhill hill itself, which projects like a promontory into the vale of The work referred to is ‘Outlines of the Avon, is formed of beds of the limestone rock. Geology of and Wales’ by Rev W D The rock on the other side Calne abounds Conybeare and William Phillips. 1982 with what is called coral-rag by geologists, Bremhill is mentioned in ‘Mr Lonsdale on the from its containing, and sometimes being, to a Oolitic District of Bath’ Transactions of the considerable extent entirely composed of Geographical Society of London 1835. fossil madrepores, amongst which some large and very beautiful specimens may be collected. The petrified shells that chiefly abound in this quarry are classified in Phillip’s

Journal of the Bath Geological Society, No. 34, 2015 13