Editing Jurassic and Cretaceous rocks of the Market Weighton area - an excursion

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If working, permission for access is required from the owner. The section in this pit, recently worked and greatly extended, exposes about 12m of the mid part of the Burnham Formation, from just below the Enthorpe Marls, a series of four marl bands in 2.5 m of chalk, up to the lowest unit of the Kiplingcotes Flints. The three Kiplingcotes Marls are well exposed in the higher part of the sequence. Fossils include the echinoids ''Sternotaxis placenta, Micraster corbovis, ''bivalve ''Pycnodonte vesicularis, ''brachiopods ''Gibbithyris semiglobosa, Orbirhynchia'' sp., the '''coral''' ''Parasmilia, ''and several species of inoceramid bivalves. The important rare bivalve ''Didymotis? uermoesensis'' occurs just below the middle Kiplingcotes Marl and marks both the boundary between the ''Sternotaxis Plana ''and ''Micraster cortestudinarium ''Biozones and the international boundary between the Turonian and Coniacian Stages. This horizon also marks the upper limit of the range of ''S. placenta''.[Note. The above description is retained here, but, unfortunately, the pit has been the subject of much illegal tipping, and the exposures are mostly obscured.]
 
If working, permission for access is required from the owner. The section in this pit, recently worked and greatly extended, exposes about 12m of the mid part of the Burnham Formation, from just below the Enthorpe Marls, a series of four marl bands in 2.5 m of chalk, up to the lowest unit of the Kiplingcotes Flints. The three Kiplingcotes Marls are well exposed in the higher part of the sequence. Fossils include the echinoids ''Sternotaxis placenta, Micraster corbovis, ''bivalve ''Pycnodonte vesicularis, ''brachiopods ''Gibbithyris semiglobosa, Orbirhynchia'' sp., the '''coral''' ''Parasmilia, ''and several species of inoceramid bivalves. The important rare bivalve ''Didymotis? uermoesensis'' occurs just below the middle Kiplingcotes Marl and marks both the boundary between the ''Sternotaxis Plana ''and ''Micraster cortestudinarium ''Biozones and the international boundary between the Turonian and Coniacian Stages. This horizon also marks the upper limit of the range of ''S. placenta''.[Note. The above description is retained here, but, unfortunately, the pit has been the subject of much illegal tipping, and the exposures are mostly obscured.]
  
=== Locality 7, Kiplingcotes Station Quarry [SE 932 437] (Pit 38 of Wright & Wright, 1942) ===
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=== Locality 7, Kiplingcotes Station Quarry [SE 932 437] (Pit 38 of Wright & Wright (1942) ===
  
Information for access is required from Kiplingcotes Classic Furniture. The section in this disused quarry exhibits the three Kiplingcotes Marls spread over about 2 m, with the overlying three semi-tabular Kiplingcotes Flints occupying about 2 m of the succession. Wright & Wright (1942) discovered iron-stained lenticular patches of nodular chalk containing large numbers of gastropods and bivalves preserved in iron oxide, thought to have been saved from destruction or excessive alteration on the sea floor by the collapsed shells of large ammonites. Fossils can still be found on the quarry floor in loose blocks, including the echinoids ''Echinocorys scutata'', ''Micraster'' sp., several species of inoceramid bivalves, and the brachiopod ''Orbirhynchia'' sp. [Note. Although the original description is retained here, this pit has also suffered from illegal tipping, and the previous good exposures are no longer visible.]
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Information for access is required from Kiplingcotes Classic Furniture, Station House, Kiplingcotes; tel: 01430 810284. The section in this disused quarry exhibits the three Kiplingcotes Marls spread over about 2 m, with the overlying three semi-tabular Kiplingcotes Flints occupying about 2 m of the succession. Wright & Wright (1942) discovered iron-stained lenticular patches of nodular chalk containing large numbers of gastropods and bivalves preserved in iron oxide, thought to have been saved from destruction or excessive alteration on the sea floor by the collapsed shells of large ammonites. Fossils can still be found on the quarry floor in loose blocks, including the echinoids ''Echinocorys scutata'', ''Micraster'' sp., several species of inoceramid bivalves, and the brachiopod ''Orbirhynchia'' sp. [Note. Although the original description is retained here, this pit has also suffered from illegal tipping, and the previous good exposures are no longer visible.]
  
=== Locality 8, Enthorpe railway cutting [SE 906 456]–[SE 914 459]; (? Pit 45 of Wright & Wright, 1942) ===
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=== Locality 8, Enthorpe railway cutting [SE 906 456]–[SE 914 459]; (? Pit 45 of Wright & Wright (1942) ===
  
Permission for access is required from the landowner (Rossmoor Farm). The disused railway cutting at Enthorpe is about 0.75 km long and trends east–northeast. Access is difficult, as banks are overgrown, and care should be taken. About 30 m of Burnham Formation chalk is exposed, the lowest 16.5 m in the ''Sternotaxis plana ''Biozone, with the lowest beds marked by the Ulceby Marl at the southwest end of the cutting. The upper 13.5 m is referred to the ''Micraster cortestudinarium ''Biozone with the highest beds seen near the old station bridge (Whitham, 1991). Fossils from the ''S. plana ''Biozone are similar to those found at Arras Road and the same sequence of beds occurs, including the Enthorpe Marls, and the Kiplingcotes Marls and Flints. The basal beds of the overlying ''M. cortestudinarium'' Biozone yield numerous specimens of the echinoid ''Echinocorys scutata'' and less common examples of ''Micraster. ''Several species of inoceramid bivalves occur, including ''Cremnoceramus inconstans, C. schloenbachi, C. deformis ''and ''Inoceramus lamarcki''. [Section now mostly overgrown, but some exposures are still visible.]
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Permission for access is required from the landowner (Mr Emmerson, Rossmoor Farm, General Lane, Melbourne, Near York). The disused railway cutting at Enthorpe is about 0.75 km long and trends east–northeast. Access is difficult, as banks are overgrown, and care should be taken. About 30 in of Burnham Formation chalk is exposed, the lowest 16.5 m in the ''Sternotaxis plana ''Biozone, with the lowest beds marked by the Ulceby Marl at the southwest end of the cutting. The upper 13.5 m is referred to the ''Micraster cortestudinarium ''Biozone with the highest beds seen near the old station bridge (Whitham 1991)
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Fossils from the ''S. plana ''Biozone are similar to those found at Arras Road and the same sequence of beds occurs, including the Enthorpe Marls, and the Kiplingcotes Marls and Flints. The basal beds of the overlying ''M. cortestudinarium'' Biozone yield numerous specimens of the echinoid ''Echinocorys scutata'' and less common examples of ''Micraster. ''Several species of inoceramid bivalves occur, including ''Cremnoceramus inconstans, C. schloenbachi, C. deformis ''and ''Inoceramus lamarcki''. [Section now mostly overgrown, but some exposures are still visible.]
  
  

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