Geological Society, London, Special Publications最新文献_第8页

Introduction to The Bowland Shale Formation, UK: Processes and Resources 英国鲍兰页岩地层简介：过程与资源

Geological Society, London, Special Publications Pub Date : 2024-01-29 DOI: 10.1144/sp534-2023-142

J. Emmings, J. Parnell, M. H. Stephenson, B. Lodhia

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The Falls of the Ohio River: America's First Fossil Bed 俄亥俄河瀑布美国第一化石床

Geological Society, London, Special Publications Pub Date : 2024-01-26 DOI: 10.1144/sp543-2022-240

Alan Goldstein, Katherine V. Bulinski

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Morphodynamics of macrotidal channels in Korean tidal flats: implications for the role of monsoon precipitation and the stratigraphic architecture of tidal point bars 韩国滩涂大潮汐通道的形态动力学：对季风降水作用和潮汐点带地层结构的影响

Geological Society, London, Special Publications Pub Date : 2024-01-25 DOI: 10.1144/sp540-2023-113

K. S. Choi, J. Jo, D. H. Kim, S. Y. Sohn, S. H. Bang

{"title":"Morphodynamics of macrotidal channels in Korean tidal flats: implications for the role of monsoon precipitation and the stratigraphic architecture of tidal point bars","authors":"K. S. Choi, J. Jo, D. H. Kim, S. Y. Sohn, S. H. Bang","doi":"10.1144/sp540-2023-113","DOIUrl":"https://doi.org/10.1144/sp540-2023-113","url":null,"abstract":"\u0000 Tidal channels exert a crucial control on sediment transport and drive geomorphic changes in the tidal environment. Despite their ubiquitous occurrence, long-term morphodynamics and processes driving the morphologic changes remain less well understood than fluvial counterparts. Spanning from straight to dendritic, Korean tidal channels become more sinuous and densely populated with elevation due to higher mud content. Mutually evasive current patterns resulted in a cuspate meander bend, where flood barb develops at the seaward side of the bend. Multiannual observation revealed that tidal channels migrate up to 80 m per year in the lower intertidal zone of open-coast sandy tidal flats to nearly stationary for several years in the upper intertidal zone of protected muddy tidal flats. Migration rates are temporarily pronounced during the summer monsoon when heavy rainfall-induced surface runoff intensifies ebb tidal asymmetry and promotes headward erosion. Meander bends are mostly landward-skewed and shift downstream, implying that ebb currents primarily drive the long-term channel morphodynamics. Tidal point bars commonly display ebbwardly dipping, inclined heterolithic stratification (IHS), dominated by bedforms formed by subordinate flood tidal currents. An overall ebb-dominance and mutually evasive current patterns account for the counterintuitive stratigraphic architecture of the point bars in Korean tidal channels.","PeriodicalId":281618,"journal":{"name":"Geological Society, London, Special Publications","volume":"58 42","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139598478","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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The Cara Cura intrusive complex, Neuquén Basin, Argentina: a field analogue of a whole igneous petroleum system 阿根廷内乌肯盆地卡拉库拉侵入复合体：整个火成岩石油系统的现场模拟

Geological Society, London, Special Publications Pub Date : 2024-01-24 DOI: 10.1144/sp547-2023-119

J. Palma, Ole Rabbel, J. Spacapan, Remigio Ruiz, O. Galland

{"title":"The Cara Cura intrusive complex, Neuquén Basin, Argentina: a field analogue of a whole igneous petroleum system","authors":"J. Palma, Ole Rabbel, J. Spacapan, Remigio Ruiz, O. Galland","doi":"10.1144/sp547-2023-119","DOIUrl":"https://doi.org/10.1144/sp547-2023-119","url":null,"abstract":"\u0000 This contribution presents a detailed geological study of a well-exposed igneous petroleum system at Sierra de Cara Cura, Neuquén basin, Argentina, which consists of sills, dykes, laccoliths and hybrid intrusion morphologies. The size of the exposed intrusive complex (19 km in N-S direction) is similar to those of sill-clusters hosting producing oil fields of the nearby Río Grande Valley. Most sills (>80%) are preferentially emplaced in the organic-rich rocks such as Vaca Muerta and Agrio Formations. Sills are extensively fractured and represent potentially good fractured hydrocarbon reservoirs. We document several fracturing mechanisms that can lead to heterogeneous fracture distribution. Laccoliths represent very different igneous reservoirs with a typical zonation: the core of the laccoliths are massive and poorly fractured, whereas the rims consist of a breccia formed during laccolith emplacement. The Vaca Muerta and Agrio Formations are thermally altered by the cooling of the sills. The deep parts of the outcropping laccoliths likely altered thermally the shale formations they were emplaced in. Hydrogen Index (HI) and Transformation Ratio (TR) of the organic matter are the best parameters to determine the thickness of the thermal aureole. The Sierra de Cara Cura appears as a world-class field analogue of igneous petroleum systems.","PeriodicalId":281618,"journal":{"name":"Geological Society, London, Special Publications","volume":"34 7","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139599505","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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The magma plumbing system of the Northern Carnarvon Basin, offshore Australia: Multi-scale controls on basinwide magma emplacement, and implications for petroleum exploration 澳大利亚近海北卡纳冯盆地的岩浆管道系统：全盆地岩浆喷发的多尺度控制及其对石油勘探的影响

Geological Society, London, Special Publications Pub Date : 2024-01-24 DOI: 10.1144/sp547-2023-143

Michael S. Curtis, S. Holford, M. Bunch, N. Schofield, Alex Karvelas

{"title":"The magma plumbing system of the Northern Carnarvon Basin, offshore Australia: Multi-scale controls on basinwide magma emplacement, and implications for petroleum exploration","authors":"Michael S. Curtis, S. Holford, M. Bunch, N. Schofield, Alex Karvelas","doi":"10.1144/sp547-2023-143","DOIUrl":"https://doi.org/10.1144/sp547-2023-143","url":null,"abstract":"\u0000 \u0000 The Northern Carnarvon Basin (NCB) located on Australia's North West Shelf hosts an extensive (∼40,000 km\u0000 2\u0000 ) intrusive igneous complex related to Mesozoic rifting and breakup. Using an extensive suite of modern 3D seismic reflection surveys, we have mapped this intrusive system across the NCB. We identify three predominant intrusion morphologies: Stacked sheets of large interconnected sill intrusions (up to ∼170 km long) and smaller (8 to 30 km long) isolated, strata concordant intrusions, which often interact with normal faults emplaced into deltaic sedimentary rocks; and variably sized (10 to 40 km long) saucer-shaped intrusions emplaced into marine shales, spread across seven zones (geographically constrained groups of intrusions of a specific morphology). We consider the zones' margin-parallel orientation, suggesting control by sub-crustal extensional processes during rifting; and, variation in intrusion morphology between these zones, suggesting a dominant control by host rock mechanical properties. We integrate previous work with our observations, constraining emplacement to between the Kimmeridgian and Valanginian, coinciding with key phases of margin evolution. Finally, we assess the impact of this intrusive complex on local petroleum systems. There is likely little to no adverse impact on source rock maturation or reservoir contamination by CO\u0000 2\u0000 . But, there is a spatial dissociation between the location of groups of intrusions and the gas fields, particularly in the Exmouth Plateau; this suggests that migrating hydrocarbons may be blocked, baffled and/or redirected by emplaced igneous rocks.\u0000","PeriodicalId":281618,"journal":{"name":"Geological Society, London, Special Publications","volume":"38 9","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139602353","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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A Review of the Carboniferous Shale Gas Potential of Northern England: A data-based analysis of why it won't work 英格兰北部石炭纪页岩气潜力回顾：基于数据的分析：为什么页岩气行不通？

Geological Society, London, Special Publications Pub Date : 2024-01-19 DOI: 10.1144/sp534-2023-56

A. J. Fraser, B. Lodhia, Michael J. E. Sims

{"title":"A Review of the Carboniferous Shale Gas Potential of Northern England: A data-based analysis of why it won't work","authors":"A. J. Fraser, B. Lodhia, Michael J. E. Sims","doi":"10.1144/sp534-2023-56","DOIUrl":"https://doi.org/10.1144/sp534-2023-56","url":null,"abstract":"\u0000 The recent shale gas revolution originated in the United States in the late 1990s with the exploration of the Carboniferous Barnett Shale in Texas. Success in a number of additional basins in North America such as the Marcellus, Eagleford and Bakken stimulated a search for similar opportunities elsewhere around the world. Amongst the shales and basins targeted by industry was the Carboniferous Bowland Shale (and equivalents) in northern England.\u0000 An initial premise that the Barnett represented an excellent analogue for the Bowland lead to overoptimistic reserve estimates which have been shown to be largely incorrect. On the basis of visual inspection of wellbore cores, the Carboniferous Barnett and Bowland shales appear to be very similar. Unfortunately, it is there that the similarity ends. Research carried out for the UKUH project has highlighted important differences adversely impacting propectivity. These can be summarised as basin type/continuity and structural complexity. The total organic carbon (TOC), maturity, mineralogy and thickness of the Bowland Shale and equivalents are broadly similar to the successful US examples.\u0000 Our conclusion is that the Bowland Shale in the UK does not represent a technically significant resource and in hindsight did not merit the considerable industry and media attention that has been associated with it. A key learning is that fundamental research based on heritage data and modern analytical and modelling techniques should have preceded drilling and fracking operations in northern England.\u0000 \u0000 Supplementary material at\u0000 https://doi.org/10.6084/m9.figshare.c.7027899\u0000","PeriodicalId":281618,"journal":{"name":"Geological Society, London, Special Publications","volume":"35 9","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139612242","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Using the Geoheritage Framework to Explore the Intersection of Diverse Legacies at Grand Caverns, Virginia, US 利用地质遗产框架探索美国弗吉尼亚州大岩洞多元遗产的交汇点

Geological Society, London, Special Publications Pub Date : 2024-01-19 DOI: 10.1144/sp543-2022-221

Ángel A. Garcia, Austin Shank

{"title":"Using the Geoheritage Framework to Explore the Intersection of Diverse Legacies at Grand Caverns, Virginia, US","authors":"Ángel A. Garcia, Austin Shank","doi":"10.1144/sp543-2022-221","DOIUrl":"https://doi.org/10.1144/sp543-2022-221","url":null,"abstract":"\u0000 Grand Caverns is known to be the oldest show cave in continuous operation in the contiguous United States (US). Discovered in 1804, Grand Caverns has been offering tours, at least one per year, continuously from 1806 until now. For more than two centuries Grand Caverns, host to diverse and uncommon solution caves' speleothems such as cave shields, has served as the center of multidisciplinary research related to the understanding limestones in Virginia and has accrued historical accounts relevant to the Shenandoah Valley (nestled between the Blue Ridge Mountains to the east and the Allegheny Mountains to the west) in the Commonwealth of Virginia. In this chapter, we explore the geological, historical, mapping, and geotourism legacies, while using the Geoheritage as a narrative framework. In addition, we discuss the intersection of historical and diverse concurrent heritages at Grand Caverns and the relevance for the understanding of national show caves and caves' development processes; and we share ongoing efforts towards the construction of a proposal to elevate the status of Grand Caverns to be part of the United Nations Educational, Scientific and Cultural Organization (UNESCO) World Heritage list.\u0000 \u0000 Supplementary material at\u0000 https://doi.org/10.6084/m9.figshare.c.7027515\u0000","PeriodicalId":281618,"journal":{"name":"Geological Society, London, Special Publications","volume":"70 12","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139613330","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Siberian Jehol Biota 西伯利亚热河生物群

Geological Society, London, Special Publications Pub Date : 2024-01-18 DOI: 10.1144/sp545-2023-155

E. Bugdaeva, L. Golovneva

{"title":"Siberian Jehol Biota","authors":"E. Bugdaeva, L. Golovneva","doi":"10.1144/sp545-2023-155","DOIUrl":"https://doi.org/10.1144/sp545-2023-155","url":null,"abstract":"\u0000 Volcanogenic-sedimentary and coal-bearing deposits, which contain abundant fossils of a lacustrine fauna and terrestrial flora, are widespread in the territory of Transbaikalia (Russia), Mongolia, and Northeastern China. These ecosystems are known under the name of ‘Jehol Biota’, which occurs in the Yixian and Jiufotang formations. The discovery of ‘feathered’ dinosaurs and of the earliest angiosperms in western Liaoning Province (China) made them world famous. The history of this biota began in the nineteenth century, when the discoveries in Transbaikalia of the remains of conchostracans, ostracods, insects, fish, and plants collected during the expedition of A.F. Middendorf were described. The Barremian–Aptian sedimentary sequences of Transbaikalia (Russia), Mongolia, and Northeastern China are very similar. The appearance and evolution of the Jehol Biota occurred against the background of extensive volcanism and tectonic revival, after which normal sedimentary rocks were deposited, culminating in relief peneplanation, swamp development and peat formation. The northern limit of the distribution of this biota is determined as up to about 54° modern north latitude. The existence of the Siberian Jehol Biota in extreme climatic conditions is confirmed, as was indicated for the Jehol Biota from Northeast China.","PeriodicalId":281618,"journal":{"name":"Geological Society, London, Special Publications","volume":"114 22","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139614240","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Cretaceous Large Igneous Provinces: from volcanic formation to environmental catastrophes and biological crises 白垩纪大火成岩带：从火山形成到环境灾难和生物危机

Geological Society, London, Special Publications Pub Date : 2024-01-18 DOI: 10.1144/sp544-2023-88

L. Percival, H. Matsumoto, S. Callegaro, E. Erba, A. C. Kerr, J. Mutterlose, K. Suzuki

{"title":"Cretaceous Large Igneous Provinces: from volcanic formation to environmental catastrophes and biological crises","authors":"L. Percival, H. Matsumoto, S. Callegaro, E. Erba, A. C. Kerr, J. Mutterlose, K. Suzuki","doi":"10.1144/sp544-2023-88","DOIUrl":"https://doi.org/10.1144/sp544-2023-88","url":null,"abstract":"\u0000 \u0000 The Cretaceous Period was marked by the formation of numerous Large Igneous Provinces (LIPs), several of which were associated with geologically rapid climate, environmental, and biosphere perturbations, including the early Aptian and latest Cenomanian Oceanic Anoxic Events (OAEs 1a and 2, respectively). In most cases, magmatic CO\u0000 2\u0000 emissions are thought to have been the major driver of climate and biosphere degradation. This work summarises the relationships between Cretaceous LIPs and environmental perturbations, focussing on how volcanism caused climate warming during OAE 1a using osmium-isotope and mercury concentration data. The new results support magmatic CO\u0000 2\u0000 output from submarine LIP activity as the primary trigger of climate warming and biosphere stress before/during OAE 1a. This submarine volcanic trigger of OAE 1a (and OAE 2), two of the most climatically/biotically severe Cretaceous events, highlights the capacity of oceanic LIPs to impact Earth's environment as profoundly as many continental provinces. Cretaceous magmatism (and likely output of CO\u0000 2\u0000 and trace-metal micronutrients) was apparently most intense during those OAEs; further studies are needed to better constrain eruption histories of those oceanic plateaus. Another open question is why the Cretaceous Period overall featured a higher rate of magmatic activity and LIP formation compared to before and afterwards.\u0000 \u0000 \u0000 Supplementary material at\u0000 https://doi.org/10.6084/m9.figshare.c.7026011\u0000","PeriodicalId":281618,"journal":{"name":"Geological Society, London, Special Publications","volume":"111 41","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139615599","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Cretaceous fossil birds from China 中国白垩纪鸟类化石

Geological Society, London, Special Publications Pub Date : 2024-01-18 DOI: 10.1144/sp544-2023-129

Zhonghe Zhou, Min Wang

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