共查询到20条相似文献，搜索用时 46 毫秒
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Anjana Khatwa Ford 《Proceedings of the Geologists' Association. Geologists' Association》2019,130(3-4):507-521
World Heritage Sites have a duty, through educational and information programmes, to strengthen appreciation and respect by their peoples of the cultural and natural heritage of that site. The Jurassic Coast World Heritage Site (JCWHS) showcases nearly 185 million years of Earth’s history across 95 miles of coast and exemplifies some of the most spectacular rocks, fossils and landforms in the world. However, imparting these values to non-specialist audiences of all ages, abilities and needs provides unique challenges and opportunities. A critical factor for success in addressing such a wide audience is ensuring that content is relevant, meaningful and focused on the expectations of the end user. In this paper we present our learning framework that is based around two approaches. Firstly, we map out the needs and expectations of each of our four core audience groups and set out guidelines for who we should aim our content at and how that should be delivered. Secondly, we set out three pathways (Inspire, Curious and Motivated) through which a person may choose to engage with the Jurassic Coast. We argue that if our tailored content and experiences can resonate with a person at an emotional and intellectual level, they will ultimately become devoted to the Jurassic Coast. Through empowering a community of people who understand and appreciate the geoheritage of the Jurassic Coast, they can become advocates and champions for its protection and conservation in the future. 相似文献
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Rose Ferraby Dominic Powlesland 《Proceedings of the Geologists' Association. Geologists' Association》2019,130(3-4):483-492
The Jurassic Coast World Heritage Site is a landscape defined by change and process. As such, the approach to its heritage must be similarly flexible and active. A balance must be found between celebrating these processes of change, whilst also conserving those invaluable discoveries and features that so define this coast, as well as encouraging ongoing research and public engagement. This delicate task can be aided firstly by thinking about this geologically defined World Heritage Site as a landscape. In this way it is possible to develop rich and nuanced narratives between the human and geological. Secondly, by embracing new technologies and methodologies to record, archive and communicate features and finds, as well as the process of change itself. Here, we explore these ideas through two unique sites of geological and palaeontological interest discovered in the process of quarrying. To balance keeping the sites open to the public with the risk of natural and human damage to the sites, Structure-from-Motion photogrammetry was used to create accurate, high-resolution, georeferenced 3D models. The process and potentials of the technique are discussed, alongside a discussion of the broader ideas of heritage and approaches already at play on this coastline. 相似文献
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Rory N. Mortimore 《Proceedings of the Geologists' Association. Geologists' Association》2019,130(3-4):406-450
Extraordinary, long-distance litho-marker beds such as the Lewes and Shoreham Tubular Flints and associated marl seams and fossils, recognised in cliff exposures and cliff-fall boulders, are keys to unlocking the stratigraphy and tectonic structures in the Late Cretaceous of the Dorset and East Devon Coast World Heritage Site (Jurassic Coast). Durdle Cove is a special gem exposing the Lewes and Seaford Chalk stratigraphy where new marker beds are identified and sediments and tectonic structures provide clues to timing of movements that produced a Late Cretaceous pericline which grew into a Miocene monocline along the line of the underlying Purbeck Reverse Fault. During ‘inversion’ along this fault some Late Cretaceous Chalk formations were in part or completely ‘lost’ (e.g. Middle Turonian New Pit Chalk Formation) and others were condensed (e.g. Late Santonian and Early Campanian Newhaven Chalk Formation). Excavation of the A354 road cutting at the Lower Bincombe Farm, has greatly added to the stratigraphical records of Late Cretaceous fossils in South Dorset, especially Coniacian and Early Campanian inoceramid bivalves and the various stratigraphically specific forms of the Late Santonian to Early Campanian echinoid fossil Echinocorys scutata spp. not recorded before in this coastline. The very large bivalve fossil Platyceramus sp. provides clues to chalk sea-floor environments. 相似文献
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M.B. Hart Z. Hughes K.N. Page G.D. Price C.W. Smart 《Proceedings of the Geologists' Association. Geologists' Association》2019,130(3-4):326-338
The Jurassic succession of the Wessex Basin – especially that cropping out within the Dorset and East Devon Coast World Heritage Site – contains important lagerstätten for coleoid cephalopods. The Blue Lias and Charmouth Mudstone formations of West Dorset, the Oxford Clay Formation of North Wiltshire and the Kimmeridge Clay Formation of Purbeck have provided large numbers of important body fossils that inform our knowledge of coleoid palaeobiology, including the hooks present in the arms. Isolated hooks are also found in the processed residues studied by micropalaeontologists and these occurrences can be used – in some cases – to record the presence of key taxa in the absence of well-preserved body fossils. While some hook morphotypes can be attributed to known species, there are many forms of hook described where the parent animal remains unknown. The present state of our knowledge of the Jurassic assemblages in the Wessex Basin is presented and remaining issues identified. 相似文献
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《Proceedings of the Geologists' Association. Geologists' Association》2019,130(3-4):390-405
The Upper Greensand Formation, in part mainly underlain by the Gault Formation and overlain by the Chalk Group, has extensive cliff outcrops in the Dorset and East Devon Coast World Heritage Site (WHS). The argillaceous Gault, up to 20 m thick in the Isle of Purbeck, is poorly exposed due to its involvement in extensive landslides, but the exposures of Upper Greensand are the most complete in England. The Gault (Middle Albian) rests unconformably on progressively older Jurassic and Triassic strata when traced westwards and becomes more arenaceous in the same direction. On the east Devon coast, the Upper Greensand comprises up to 55 m of sandstones and calcarenites that were deposited in fully marine, shallow-water environments. The formation is divided into three members there (Foxmould, Whitecliff Chert and Bindon Sandstone) each bounded by a prominent erosion surface. The full thickness of the Upper Greensand, up to 60 m, was formerly exposed in cliffs in the Isle of Purbeck in and adjacent to the steeply dipping limb of the Purbeck Monocline. The lower (Foxmould) part of the succession is similar to that in east Devon, but the upper part (White Nothe Member) is lithologically different and probably the correlative of only the Bindon Sandstone. Much of the fauna of the Gault and Upper Greensand of the WHS is not age-diagnostic with the result that the ages of parts of the succession are still poorly known. However, diverse ammonite assemblages recorded from a few thin beds in the lower and highest parts of the succession show that all except one of the Albian ammonite zones is present. 相似文献
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Ramues Gallois 《Proceedings of the Geologists' Association. Geologists' Association》2019,130(3-4):274-293
An almost complete late Permian and Triassic succession c. 1300 m thick is exposed in the cliffs between Exmouth and Lyme Regis in the Dorset and East Devon Coast World Heritage Site, U.K. All except the youngest part of the succession was deposited in terrestrial environments that include alluvial fans, aeolian sand dunes, braided rivers and playa-lakes. The succession of environments with time not only reflects the denudation of the Variscan mountains that lay to the west and south in the Cornubian and Armorican massifs, but also responses to periods of tectonic uplift and subsidence, and to long- and short-term climatic and associated biotic changes. Notwithstanding the almost continuous, readily accessible exposures in the cliffs and intertidal areas, few of the formations have yielded any age-diagnostic fossils with the result that much of the succession cannot be dated with certainty. The Permo-Triassic boundary has been placed in the lower part of the succession on the basis of magnetostratigraphy and the same method has been used to quantify some of the stage boundaries and the principal tectonic breaks in the succession. 相似文献
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《Proceedings of the Geologists' Association. Geologists' Association》2019,130(3-4):451-462
The Jurassic Coast World Heritage Sites (JCWHS) is not only a 95 km long coastline and remarkable Mesozoic geological section, but also a slice through a Quaternary landscape. For the majority of the last two million years this landscape lay in the periglacial zone, just south of a waxing and waning ice margin and just north of an Atlantic inlet which eventually became the English Channel. This paper reviews how the previous landscape inherited from the Cenozoic, was modified through uplift, climatically driven fluvial activity and periglaciation. Much evidence of this Quaternary history can be seen today in sections along the JCWHS coast which cuts through a number of headwater valleys the largest of which are the Exe and Axe. Recent studies, largely funded from the Aggregate Levy Tax, have produced the first independent chronologies for the Exe and Axe valleys and a model of how periglaciation interacted with the layer-cake stratigraphy of the Mesozoic bedrocks of the JCWHS. The Quaternary history of the JCWHS is also preserved in raised beaches on the Isle of Portland, coastal landforms, and in Holocene alluvial sediments associated with human activity and which may constitute part of the putative Anthropocene. An appreciation of the Quaternary history of the JCWHS is also important in understanding modern geological hazards from landslides to flooding. 相似文献
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Robert A. Coram Jonathan D. Radley Michael J. Benton 《Proceedings of the Geologists' Association. Geologists' Association》2019,130(3-4):294-306
The Middle Triassic (Anisian) Otter Sandstone was laid down mostly by braided rivers in a desert environment and is now well exposed along the south-east Devon coast in south-west England, part of the ‘Jurassic Coast’ World Heritage Site. It yields uncommon and generally fragmentary fossils, principally of vertebrates, including fish, temnospondyl amphibians and reptiles such as rhynchosaurs, predatory archosaurs, and small superficially lizard-like forms. These provide important information about a freshwater and terrestrial ecosystem that marks recovery from the end-Permian mass extinction, but pre-dated the appearance of dinosaurs and mammals. The constantly eroding Otter Sandstone exposures continue to reveal new taxa (for example, freshwater sharks). Furthermore, microvertebrate material obtained by sieving bone-bearing levels has the potential to further expand the faunal list. Newly discovered associated and articulated vertebrate remains, including small tetrapods, improve knowledge of whole-body anatomy and facilitate systematic work. Invertebrate burrows and reptile footprints provide information on ecological interactions and detailed bed-by-bed collecting casts light on taphonomic processes and faunal changes over time. 相似文献
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《Proceedings of the Geologists' Association. Geologists' Association》2019,130(3-4):463-472
This paper reviews recent studies of the seabed offshore from the Jurassic Coast and discusses their significance for understanding landforms of the World Heritage Site’s Setting as well as adding to understanding of the structures exposed in the cliffs. The processes of coastal formation as sea-levels rose and fell during the Pleistocene and in the recent post-glacial period are critical for this as they reveal the landforms which preserve former shorelines. Detailed surveys of the seabed provide evidence of the low slope of much of this seabed and so enhance the potential to interpret older terrestrial landforms which have been attributed to uplift of former sea beds. Considering both the seabed and the coast from the Pleistocene to the Anthropocene means that it is possible to assess the human impact on these landforms and processes, as well as the natural timescale within which changes occur. The paper describes the seabed geomorphology, relating this, where appropriate, to both the coastal landforms and the exposed structures. Current interpretations of the seabed features and their implications for our understanding of the recent evolution of the Site and Setting are explored. The features of the coast and adjacent sea bed at different phases of the changing coastal environment are discussed to the extent that the available evidence makes this possible, but for much of the area this remains speculative. 相似文献
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5.12汶川地震对黄龙世界遗产地源泉水文地球化学的影响——高分辨率和高精度的水文地球化学监测证据 总被引：1，自引：1，他引：0
2008年5月12日的汶川特大地震不仅造成了惨重的人员伤亡和巨大的经济损失,而且对当地生态环境产生了严重的影响。本文根据黄龙钙华景观退化的人为和自然影响机理研究获得的部分高分辨率和高精度水文地球化学监测数据分析发现,大地震通过诱导控制黄龙源泉的深源断裂活动对源泉的水文地球化学产生了显著影响,主要表现为地震后泉流量、水温、电导率和CO2分压升高,反映出地震增加了地下向地表的水、热、钙离子和CO2通量。然而,地震对从泉水中沉积的钙华景观的后续影响以及汶川地震造成深源CO2向大气CO2释放对全球碳循环的影响,有待进一步的监测评估。 相似文献
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Jonathan Paul 《Geology Today》2015,31(1):28-32
The area around Stroud, a small English market town perched on the steep west‐facing Cotswold escarpment, offers some of the most dramatic outcrops of Jurassic limestone in the UK. From sweeping vistas of the Severn Vale, to the deeply wooded river valleys that indent the escarpment, its landscape is undeniably one of the area's greatest assets. Recently, the geology and physiography of the landscape has been drawn into close focus by several notable UK media stories: protests against hydraulic fracturing (fracking) in the underlying Lias clays; landslides causing weeks of repeated disruption across the Cotswold road and railway networks; and the recent death of a local engineer in a pit collapse of Fuller's Earth. In order to understand these stories in greater depth, it is useful to consider the story of Stroud's unique physical setting. 相似文献
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旅游需求的显著特点之一是随时间变化而变化,定量研究和预测旅游需求随时间的变化,对世界遗产地的科学开发规划和经营决策具有重要的指导意义.选取甘肃和四川两省世界遗产地景点的门票价格,统计分析了世界遗产地门票价格变动对客源市场的调节作用,用时间结构分析模型探讨门票价格变动引起的客源市场季节性结构特征和年际结构特征.结果表明:门票价格的上涨对世界遗产地的客源市场在短期内具有一定影响,但长期影响不显著.要解决目前世界遗产地人满为患的困境,尚需积极寻求其它有效措施. 相似文献
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A. Rovere M. Vacchi V. Parravicini C. N. Bianchi N. Zouros M. Firpo 《Environmental Earth Sciences》2011,64(1):133-142
Within the definition given by UNESCO of World Cultural and Natural Heritage, geoheritage finds its significance both as the
geological or geomorphological elements of nature worthy of conservation and as habitat of threatened species of outstanding
universal value from the point of view of science or conservation. Definitions, methods, and applications for the conservation
and valorization of geoheritage have been proposed for various types of environments, but their application in underwater
areas is seldom, if even, reported. In this study, we propose a set of definitions and methods for the evaluation of scientific
and additional values in underwater environment, and we apply them in two Mediterranean areas: Sigri (Greece, Lesvos Island)
and Bergeggi (Italy, Liguria region). Results show the applicability of the schemes proposed in different geological and geomorphological
settings and provide tools for the evaluation of abiotic underwater heritage in the two areas. 相似文献
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Amal Enniouar Abdelouahed Lagnaoui Adnane Habib 《Proceedings of the Geologists' Association. Geologists' Association》2014
A Middle Jurassic site at Tafaytour area (Argana Basin, Morocco) with trackways of six large sauropod dinosaurs is regarded as having high scientific and touristic value. The new dinosaur track site is extremely vulnerable, and suffers from continuous degradation caused by weathering and human activity. Documentation and protection of this tracksite is still a necessity for its integration into local geotourism activities, where it may have a socio-economic impact on the local population. Taking into consideration many similar tracksites, and strata of great paleontological interest in Morocco, including the Tafaytour tracksite, the implementation of legislation for the protection of Morocco's geological heritage, especially the paleoichnological heritage, to protect against destruction, is strongly recommended. This is necessary to cement geoheritage impact, both for scientific reasons and to value add to the socio-economic activities of the local people. 相似文献
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Spis Castle, a monument included in the UNESCO World Heritage Site list (Eastern Slovakia) is built on a travertine mound overlying soft Paleogene rocks. Lateral spreading resulting from the subsidence of strong upper travertine into soft claystone strata has fractured and separated the castle rock into several cliffs. The differential movement of individual cliff faces is the primary influence on the stability of the monument. In order to monitor and quantify the movement, two techniques were adopted: a mechanical-optical TM-71 crack gauge and a demec gauge (demountable mechanical—SOMET type crack gauge). This paper presents the results and interpretation of medium and short-term monitoring at the site. 相似文献
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《Proceedings of the Geologists' Association. Geologists' Association》2021,132(5):573-592
An almost continuous layer of Upper Cretaceous deposits up to 1000 m thick was probably deposited across much of SW England. Phases of uplift in the late Cretaceous and early Cenozoic, each of which was followed by extensive erosion and dissolution, resulted in the removal of all except a few outliers of Chalk Group that crop out in east Devon and south Somerset. Those on the Devon coast between Sidmouth and Lyme Regis are some of the best exposed Cenomanian to early Coniacian successions in NW Europe and include the most westerly chalks preserved onshore in England. They form an integral part of the Dorset and East Devon World Heritage Site. In contrast to the Chalk of much of southern England, the older formations in Devon, the Beer Head Limestone, Holywell Nodular Chalk and New Pit Chalk, show marked lateral lithological variations that result from a combination of penecontemporaneous movements on local faults and relatively shallow-water environments close to the western edge of the Chalk depositional basin. The younger parts of the succession, the Lewes Nodular Chalk and Seaford Chalk Formations, comprise chalks that do not appear to have been greatly affected by penecontemporaneous fault movements. These formations include lithological marker beds that have been correlated with marker beds in the Sussex type area. The principal sedimentary breaks in the Devon succession cannot be correlated with confidence with eustatic changes in sea level. 相似文献