Proceedings of the Yorkshire Geological Society最新文献

{"title":"Anomalous facies of the Kinnesswood Formation in the Cumbraes Basin: a late Famennian playa complex in southwest Scotland","authors":"W. G. E. Caldwell, G. M. Young","doi":"10.1144/pygs2020-002","DOIUrl":"https://doi.org/10.1144/pygs2020-002","url":null,"abstract":"Among the important geological attributes of the small Cumbraes Basin in the southwestern off-shore Midland Valley of Scotland, the 4 km-long, fragmented but well-exposed section through the Devonian-Carboniferous boundary sequence in southern Great Cumbrae island ranks highly. In a continuous short stretch of the south and west coasts, large portions of this sequence are superbly preserved in tide-washed strandline surfaces and in old post-glacial sea cliff. This enhanced exposure leaves no doubt that the outcrops belong to two, immediately successive, members of the Kinnesswood Formation -- the lower the Doughend Sandstone, the upper the Foul Port Mudstone – and that they provide some of the best available exposures on which to base description and interpretation. The facies of the fluviatile Doughend Sandstone shares many characteristics with the underlying Kelly Burn Sandstone of the Upper Old Red Sandstone, whereas that of the Foul Port Mudstone is distinct and unusual, attributed to local tectonics, influenced by movements on older and more major fractures such as the Highland Boundary Fault, with sediment accumulation taking place in a playa-lake complex of considerable extent.","PeriodicalId":49665,"journal":{"name":"Proceedings of the Yorkshire Geological Society","volume":"198 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135013963","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"High-resolution definition and correlation of the Asbian-Brigantian boundary in northern England and the Scottish borders, using foraminiferal diversity and richness","authors":"P. Cózar, I. Coronado, I. Somerville, M. Hounslow","doi":"10.1144/pygs2023-003","DOIUrl":"https://doi.org/10.1144/pygs2023-003","url":null,"abstract":"Foraminiferal diversity and taxa richness from beds transitional between the Asbian and Brigantian substages (Middle Mississippian) show patterns of secular change which allow detailed inter-regional correlations to be established. Foraminifera from the Askrigg Block, Stainmore Trough, Alston Block, South Cumbria Shelf and Solway Basin show similar secular changes (foraminiferal trends, FTs), allowing correlation to be made with the basal Brigantian Stratotype at Janny Wood. Despite the absence of consistent microfossil first occurrence markers for the recognition of the base of the Brigantian, this horizon can be confidently recognised by means of foraminiferal trends. The FTs allow the precise location of the base of the correlated Brigantian in sections where this boundary was questioned or controversial in previous studies, as well as to amend the position of the foraminiferal zones and subzones during the late Asbian and basal Brigantian. This type of analysis when used in combination with foraminiferal zonations, emergent surfaces and lithological cyclicity, together, provide a robust means for high-resolution correlation. This methodology, provides the least uncertainty in sections that have been most densely sampled, whereas for less intensely sampled sections there is more correlation uncertainty.","PeriodicalId":49665,"journal":{"name":"Proceedings of the Yorkshire Geological Society","volume":" ","pages":""},"PeriodicalIF":1.0,"publicationDate":"2023-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43669294","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A new giant theropod dinosaur track from the Middle Jurassic of the Cleveland Basin, Yorkshire, UK","authors":"J. G. Hudson, M. Romano, D. Lomax, R. Taylor, Marie Woods","doi":"10.1144/pygs2022-008","DOIUrl":"https://doi.org/10.1144/pygs2022-008","url":null,"abstract":"\u0000 A new specimen of a rare large theropod dinosaur print of Middle Jurassic age is described from the Long Nab Member of the Scalby Formation, Cleveland Basin, Yorkshire. This is only the sixth specimen of this type recorded from the Cleveland Basin since they were first discovered in 1934. The present specimen is included in the same, but slightly modified morphotype Bxviii as some of the previous ones, since it shows additional features including an elongated metapodium. The specimen is assigned to the ichnogenus\u0000 Megalosauripus\u0000 , and was possibly made by a\u0000 Megalosaurus\u0000 -like theropod. The elongated metapodium may be the result of resting or crouching behaviour.\u0000","PeriodicalId":49665,"journal":{"name":"Proceedings of the Yorkshire Geological Society","volume":" ","pages":""},"PeriodicalIF":1.0,"publicationDate":"2023-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44919713","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"An integrated sequence stratigraphic analysis of the early Marsdenian substage of the Millstone Grit Group, Central Pennines, UK","authors":"M. Brettle, C. Waters, S. Davies","doi":"10.1144/pygs2021-014","DOIUrl":"https://doi.org/10.1144/pygs2021-014","url":null,"abstract":"The early Marsdenian substage (Millstone Grit Group) of the Pennines comprises repeated deltaic cycles separated by ammonoid-bearing marine bands. This cyclicity, controlled by the combined forces of glacio-eustasy and modulations in sediment supply, provides an important outcrop area for the application of sequence stratigraphic principles.\u0000 \u0000 A new correlation framework is presented where two orders of sequence are identified: – (1) a low-order sequence, within which marine bands (R\u0000 2a\u0000 1, R\u0000 2b\u0000 1, R\u0000 2b\u0000 2 and R\u0000 2b\u0000 3) represent a maximum flooding surface, and (2) high-order sequences nested within the low-order sequences. By integrating and correlating key exposures, historic well boreholes and field mapping, lateral changes in facies and facies association are observed, and palaeogeographic trends mapped. This allows the variation in sequence and systems tract stacking patterns to be interpreted. Three orders of Milankovitch cyclicity are inferred to control the sequence stacking patterns; long-duration (∼400ka) eccentricity oscillation controlling maximum flooding events represented by the R\u0000 2a\u0000 1 and R\u0000 2b\u0000 2 marine bands, sub-100ka obliquity oscillations (controlling the R\u0000 2b\u0000 1, R\u0000 2b\u0000 2 and R\u0000 2b\u0000 3 marine bands and intervening low-order sequence boundaries), and precessional frequencies (∼25ka) which may control the periodicity of the high-order sequences.\u0000 \u0000 \u0000 Supplementary material:\u0000 https://doi.org/10.6084/m9.figshare.c.6408203\u0000","PeriodicalId":49665,"journal":{"name":"Proceedings of the Yorkshire Geological Society","volume":"1 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2023-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43436521","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Cannel coal systems and low gradient drainage through British Carboniferous mires: informing structural backgrounds, mire longevities, and Pennine Basin palaeoslopes","authors":"J. Rippon, A.A. France, D. Rowland","doi":"10.1144/pygs2022-005","DOIUrl":"https://doi.org/10.1144/pygs2022-005","url":null,"abstract":"This paper re-introduces a forgotten subject, cannel coal, formed within very low gradient mire drainage systems. A minute part of the British Carboniferous rock volume, cannel was prized in the early Industrial Revolution for oil and gas, notably hydrogen. In this paper it is revisited to reveal under-reported palaeogeography, using modern mining and drilling data to give regional depositional insights. The focus is on the English East Midlands, in the southeast of the Pennine Basin. Early literature on other areas emphasised deposition in small lakes, assuming little connectivity. In the East Midlands, large lake deposits are connected by cannel-filled channels, from the basin's southern margins up to 100km north into Yorkshire. Interplays with fluvio-clastic systems are spread over a subtle but simple palaeoslope, north and northeast to the Gainsborough Trough sub-basin, with negligible structural disturbance during deposition of the Pennine Coal Measures Group. A gentle basement tilt is indicated. Mire drainage tangential to the central basin invites discussion on wider issues, including marine flooding into the basin. Mire longevity is discussed, this also being relevant to research on contaminant contents through coal-forming times.","PeriodicalId":49665,"journal":{"name":"Proceedings of the Yorkshire Geological Society","volume":"1 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2022-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41571349","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A New Subsurface Record of the Pliensbachian–Toarcian, Lower Jurassic, of Yorkshire","authors":"J. Trabucho-Alexandre, D. Gröcke, Elizabeth Atar, Liam Herringshaw, I. Jarvis","doi":"10.1144/pygs2022-007","DOIUrl":"https://doi.org/10.1144/pygs2022-007","url":null,"abstract":"Here, we describe the upper Pliensbachian to middle Toarcian stratigraphy of the Dove's Nest borehole, which was drilled near Whitby, North Yorkshire, in 2013. The core represents a single, continuous vertical section through unweathered, immature Lower Jurassic sedimentary rocks. The thickness of the Lias Group formations in the Dove's Nest core is approximately the same as that exposed along the North Yorkshire coast between Hawsker Bottoms and Whitby. The studied succession consists of epeiric-neritic sediments and comprises cross-laminated very fine sandstones, (oolitic) ironstones, and argillaceous mudstones. Dark argillaceous mudstone is the dominant lithology. These sediments were deposited in the Cleveland Basin, a more subsident area of an epeiric sea, the Laurasian Sea.\u0000 \u0000 We present a set of geochemical data that includes organic carbon isotope ratios (δ\u0000 13\u0000 C\u0000 org\u0000 ) and total organic carbon (TOC). The δ\u0000 13\u0000 C\u0000 org\u0000 record contains a negative excursion across the Pliensbachian–Toarcian boundary and another in the lower Toarcian that corresponds to the Toarcian Oceanic Anoxic Event (T-OAE). Below the T-OAE negative excursion, δ\u0000 13\u0000 C\u0000 org\u0000 values are less\u0000 13\u0000 C-depleted than above it. We find no evidence of a long-term δ\u0000 13\u0000 C\u0000 org\u0000 positive excursion. TOC values below the T-OAE negative excursion are lower than above it.\u0000 \u0000 \u0000 Sedimentary evidence suggests that, during much of the Pliensbachian–Toarcian interval, the seafloor of the Cleveland Basin was above storm wave-base and that storm-driven bottom currents were responsible for much sediment erosion, transport, and redeposition during the interval of oceanic anoxia. The abrupt shifts observed in the δ\u0000 13\u0000 C\u0000 org\u0000 record (lower Toarcian) are likely to reflect the impact of erosion by storms on the morphology of the δ\u0000 13\u0000 C record of the T-OAE.\u0000 \u0000 \u0000 Supplementary material:\u0000 https://doi.org/10.6084/m9.figshare.c.6154436\u0000","PeriodicalId":49665,"journal":{"name":"Proceedings of the Yorkshire Geological Society","volume":" ","pages":""},"PeriodicalIF":1.0,"publicationDate":"2022-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47966261","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Carboniferous Langness Conglomerate Formation, Isle of Man; an alluvial fan rift-phase deposit.","authors":"P. Strogen","doi":"10.1144/pygs2022-002","DOIUrl":"https://doi.org/10.1144/pygs2022-002","url":null,"abstract":"","PeriodicalId":49665,"journal":{"name":"Proceedings of the Yorkshire Geological Society","volume":" ","pages":""},"PeriodicalIF":1.0,"publicationDate":"2022-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46471709","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Hampole Discontinuity and Hampole Beds (Cadeby Formation, Upper Permian): deposition on the Zechstein English Shelf, South Yorkshire, UK, with data from new exposures","authors":"\tSociety\t\t\tR. Ramsdale","doi":"10.1144/pygs2022-003","DOIUrl":"https://doi.org/10.1144/pygs2022-003","url":null,"abstract":"A review of the exposures in the Cadeby Formation, Upper Permian (Lopingian Series) in South Yorkshire by the Sheffield Area Geology Trust revealed groups of previously undescribed sites near the base of the Sprotborough Member, at, and just above, the Hampole Discontinuity. These sites indicate: a wider degree of palaeoenvironmental variation along the Hampole Discontinuity surface than was previously evident; that the discontinuity surface is not laterally continuous; and imply some caution is needed when using these exposures as marker horizons. The field data is used to inform a palaeoenvironmental reconstruction for the period of the Hampole regression. A complex of near-offshore pools and islands, an area of partly exposed shoal and lagoon, and an embayment are identified.","PeriodicalId":49665,"journal":{"name":"Proceedings of the Yorkshire Geological Society","volume":"36 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2022-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76247669","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Yorkshire Geological Society Registered Charity No. 20014 Society Proceedings 2021","authors":"\tSociety\t\t\t","doi":"10.1144/pygs.59.1.316","DOIUrl":"https://doi.org/10.1144/pygs.59.1.316","url":null,"abstract":"","PeriodicalId":49665,"journal":{"name":"Proceedings of the Yorkshire Geological Society","volume":"29 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2022-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89356491","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Yorkshire Geological Society Registered Charity No. 220014 Society Proceedings 2020","authors":"\tSociety\t\t\t","doi":"10.1144/pygs2021-017","DOIUrl":"https://doi.org/10.1144/pygs2021-017","url":null,"abstract":"","PeriodicalId":49665,"journal":{"name":"Proceedings of the Yorkshire Geological Society","volume":"34 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2021-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79353602","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}