The historical development of built heritage awareness and conservation policies: a comparison of two World Heritage Sites: Edinburgh and Salvador do Bahia     

Harry Smith  Emilio José Luque-Azcona 《GeoJournal》2012,77(3):399-415

Values regarding built heritage have developed historically in response to both international agendas and local circumstances, and have underpinned the creation of World Heritage Sites and regeneration approaches within these. Such regeneration processes are an arena where different interests meet and often confront each other, with concepts and values of built heritage being used to different ends by the actors involved. However, the origins of conservation concepts and approaches are seldom considered. This paper examines the historical development of built heritage awareness and conservation policies from an institutionalist perspective at the international, European and Latin. American levels. It then considers conservation policies in Scotland and Brazil, particularly in the central areas in Edinburgh and Salvador from the 19th century to the 1970s, and the growing awareness of built heritage among certain sections of society and local institutions in these localities. Finally, the paper analyses the reasons behind, and types of, interventions in Edinburgh’s Old Town and Salvador’s Pelourinho and Maciel neighbourhoods, and the level of awareness of built heritage among the general population in the two cities. The paper draws conclusions on the influence of various factors on the development of approaches to built heritage and on the different ways in which these contributed to a particular awareness of built heritage in Edinburgh and Salvador.  相似文献   

Editorial: Round Robin Tunnel Test (RRTT)   总被引：1，自引：0，他引：1  

Emilio Bilotta  S. P. Gopal Madabhushi  Francesco Silvestri 《Acta Geotechnica》2014,9(4):561-562

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Hydrochemical and isotopic characterization of the hydrological budget of a MAB Reserve: Mar Chiquita lagoon,province of Buenos Aires,Argentina   总被引：1，自引：0，他引：1  

Melisa Glok Galli  Daniel Emilio Martínez  Eduardo Emilio Kruse  Sebastián Iván Grondona  María Lourdes Lima 《Environmental Earth Sciences》2014,72(8):2821-2835

Mar Chiquita is a coastal lagoon located in the Argentine Buenos Aires province in South America. The aim of this study was to perform a hydrochemical and stable isotopes characterization in order to better the understanding of the hydrology of the Mar Chiquita lagoon’s catchment and its water budget. Groundwater samples were taken from 144 wells and 21 samples from main streams, and seven lagoon water samples were also collected. Chemical analyses were carried out using standard laboratory methods, and isotopic determinations were made through laser spectroscopy using a DLT-100 liquid–water isotope analyzer. Hydrochemical analysis permits a general classification of groundwater and streamwater as sodium bicarbonate waters, while the lagoon chemical composition shows an evolution toward seawater composition, from the north to its mouth, which is located southerly. Isotopic data show a source of aquifer recharge from rainfall and a groundwater domain into the streams’ flow. Three main components can be recognized as end members in a plot of electrical conductivity (EC) versus δ¹⁸O: seawater, streamwater and groundwater. Obtained EC values for groundwater in the discharge zone (EC average value = 3,516 μS/cm) allow minimizing its direct contribution and to take into consideration two dominating end members: streamwater and seawater. Mar Chiquita lagoon’s water falls close to the line between streamwater and seawater end members according to its EC and δ¹⁸O. The obtained seawater proportion for these samples ranges from 84 % in the lagoon’s mouth to around 0 % in the more distal area.  相似文献   

Coastal aquifers of Europe: an overview   总被引：8，自引：3，他引：5  

Emilio Custodio 《Hydrogeology Journal》2010,18(1):269-280

Europe has a long coastline along which many human activities are concentrated. Coastal aquifer development is often intensive and subject to salinity problems as a result of seawater intrusion, upconing of deep saline water, and residual salinity in aquitards. Studies have been carried out since the end of the nineteenth century, and have set the basic principles of freshwater/marine-water relations. Some aquifers are carefully studied, monitored and managed; examples can be found in The Netherlands, Belgium, southern Italy and northeastern Spain. Often important coastal aquifers are of relatively small size but crucial to supply human needs, which vary from mostly urban and industrial in mid to high latitudes, to dominantly seasonal for irrigation in the Mediterranean area and the archipelagos. The different situations can be grouped into: recent deltas, other coastal detritic formations, carbonate formations, and the special situations in small islands. Comments on these situations are provided and some examples are introduced, just for illustration.  相似文献   

Regional structure and tectonic history of the obliquely colliding Columbus foreland basin, offshore Trinidad and Venezuela   总被引：1，自引：0，他引：1  

Emilio Garciacaro 《Marine and Petroleum Geology》2011,28(1):126-148

Cenozoic eastward migration of the Caribbean plate relative to the South American plate is recorded by an 1100-km-long Venezuela-Trinidad foreland basin which is oldest in western Venezuela (65-55 Ma), of intermediate age in eastern Venezuela (34-20 Ma) and youngest beneath the shelf and slope area of eastern offshore Trinidad (submarine Columbus basin, 15.0 Ma-Recent). In this study of the regional structure, fault families, and chronology of faulting and tectonic events affecting the hydrocarbon-rich Columbus foreland basin of eastern offshore Trinidad, we have integrated approximately 775 km of deep-penetration 2D seismic lines acquired by the 2004 Broadband Ocean-Land Investigations of Venezuela and the Antilles arc Region (BOLIVAR) survey, 325 km of vintage GULFREX seismic data collected by Gulf Oil Company in 1974, and published industry well data that can be tied to some of the seismic reflection lines. Top Cretaceous depth structure maps in the Columbus basin made from integration of all available seismic and well data define for the first time the elongate subsurface geometry of the 11-15 km thick and highly asymmetrical middle Miocene-Recent depocenter of the Columbus basin. The main depocenter located 150-200 km east of Trinidad and now the object of deepwater hydrocarbon exploration is completely filled by shelf and deepwater sediments derived mainly from the Orinoco delta. The submarine Darien ridge exhibits moderate (20-140 m) seafloor relief, forms the steep (12°-24°), northern structural boundary of the Columbus basin, and is known from industry wells to be composed of 0.5-4.5 km thick, folded and thrust-imbricated, hydrocarbon-bearing section of Cretaceous and early Tertiary limestones and clastic rocks. The eastern and southern boundaries of the basin are formed by the gently (1.7°-4.5°), northward-dipping Cretaceous-Paleogene passive margin of South America that is in turn underlain by Precambrian rocks of the Guyana shield.Interpretation of seismic sections tied to wells reveals the following fault chronology: (1) middle Miocene thrusting along the Darien ridge related to highly oblique convergence between the Caribbean plate and the passive margin of northern South America; continuing thrusting and transpression in an oblique foreland basin setting through the early Pleistocene; (2) early Pliocene-recent low-angle normal faults along the top of the Cretaceous passive margin; these faults were triggered by oversteepening related to formation of the downdip, structurally and bathymetrically deeper, and more seaward Columbus basin; large transfer faults with dominantly strike-slip displacements connect gravity-driven normal faults that cluster near the modern shelf-slope break and trend in the downslope direction; to the south no normal faults are present because the top Cretaceous horizon has not been oversteepened as it is adjacent to the foreland basin; (3) early Pliocene-Recent strike-slip faults parallel the trend of the Darien ridge and accommodate present-day plate motions.  相似文献   

Quaternary： “Quo Vadis”？     

Kenitiro Suguio Aleth&#;ea Ernandes Martins Sallun Emilio A. A. Soares 《《幕》》2005,28(3):197-200

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Palaeoenvironmental evolution and sea‐level fluctuations along the southeastern Pampa grasslands coast of Argentina during the Holocene     

Isabel Vilanova  Aldo R. Prieto  Marcela Espinosa 《第四纪科学杂志》2006,21(3):227-242

Holocene pollen and diatom analyses and complementary data from δ¹⁸O and δ¹³C, malacology and sedimentology have provided a detailed record of vegetation history and palaeoenvironmental change at arroyo Las Brusquitas, on the southeastern coast of the pampas of Argentina especially in relation to past sea levels. Holocene palaeosalinity trends were estimated by Detrended Correspondence Analysis and by salinity indexes based on pollen and diatom data. As a consequence of sea‐level rise from the postglacial an extensive wave‐cut platform formed over which Holocene infilling sequences were deposited unconformably. In these sequences, variation in pollen and diatom assemblages occurred in agreement with changes in mollusc diversity and abundance, isotope values, and sediment deposits. Between ca. 6700 and 6190 ¹⁴C yr BP (6279–6998 cal. yr BP) saline conditions predominated in an environment highly influenced by tides and salt water during the Holocene sea‐level highstand. Between ca. 6200 and 3900 ¹⁴C yr BP (4235–4608 cal. yr BP) shallow brackish water bodies formed surrounded by saltmarsh vegetation that became more widespread from 5180 ¹⁴C yr BP (5830–6173 cal. yr BP) to 3900 ¹⁴C yr BP in relation to a sea‐level stabilisation period within the regression phase. Less saline conditions marked by frequent variations in salinity predominated between ca. 3900 and 2040 yr ¹⁴C BP (1830–2160 cal. yr BP). The intertidal saltmarsh environment changed into a brackish marsh dominated by freshwater conditions and sporadic tidal influence. Halophytic vegetation increased towards ca. 2000¹⁴C yr BP indicating that saline conditions may be due to either desiccation or an unusually high tide range with rare frequency. After ca. 2000 ¹⁴C yr BP the sedimentary sequences were buried by aeolian sand dunes. Changes in Holocene vegetation and environments in Las Brusquitas area are in agreement with data obtained from various southeastern coastal sites of the Pampa grasslands. Copyright © 2005 John Wiley & Sons, Ltd.  相似文献   

Numerical modelling of the effect of horizontal drains in centrifuge tests on soil-structure interaction in liquefiable soils     

Fasano  Gianluca  Nappa  Valeria  Özcebe  Ali Güney  Bilotta  Emilio 《Bulletin of Earthquake Engineering》2021,19(10):3895-3931

Bulletin of Earthquake Engineering - The research presented herein was carried out in the framework of the H2020 LIQUEFACT project ( http://www.LIQUEFACT.eu/ ). This paper presents the results of a...  相似文献   

Detection of impervious surface change with multitemporal Landsat images in an urban–rural frontier     

Dengsheng Lu  Emilio Moran  Scott Hetrick 《ISPRS Journal of Photogrammetry and Remote Sensing》2011,66(3):298-306

Mapping and monitoring impervious surface dynamic change in a complex urban-rural frontier with medium or coarse spatial resolution images is a challenge due to the mixed pixel problem and the spectral confusion between impervious surfaces and other non-vegetation land covers. This research selected Lucas do Rio Verde County in Mato Grosso State, Brazil as a case study to improve impervious surface estimation performance by the integrated use of Landsat and QuickBird images and to monitor impervious surface change by analyzing the normalized multitemporal Landsat-derived fractional impervious surfaces. This research demonstrates the importance of two-step calibrations. The first step is to calibrate the Landsat-derived fraction impervious surface values through the established regression model based on the QuickBird-derived impervious surface image in 2008. The second step is to conduct the normalization between the calibrated 2008 impervious surface image with other dates of impervious surface images. This research indicates that the per-pixel based method overestimates the impervious surface area in the urban-rural frontier by 50%-60%. In order to accurately estimate impervious surface area, it is necessary to map the fractional impervious surface image and further calibrate the estimates with high spatial resolution images. Also normalization of the multitemporal fractional impervious surface images is needed to reduce the impacts from different environmental conditions, in order to effectively detect the impervious surface dynamic change in a complex urban-rural frontier. The procedure developed in this paper for mapping and monitoring impervious surface area is especially valuable in urban-rural frontiers where multitemporal Landsat images are difficult to be used for accurately extracting impervious surface features based on traditional per-pixel based classification methods as they cannot effectively handle the mixed pixel problem.  相似文献   

A deep, stratigraphically and structurally controlled landslide: the case of Mount La Civita (Molise, Italy)   总被引：2，自引：0，他引：2  

Pietro P. C. Aucelli  Emilio Casciello  Massimo Cesarano  Sebastiano Perriello Zampelli  Carmen M. Rosskopf 《Landslides》2013,10(5):645-656

The present paper illustrates the results of an integrated study of a large landslide located on the southern slope of Mount la Civita (Molise, Southern Apennine), an E–W elongated, SSE dipping and 890-m-high monocline carbonate ridge. The upper part of the slope affected by the landslide is largely controlled by strata attitude while its basal part is marked by a strike–slip fault causing the tectonic juxtaposition of the carbonate successions against predominantly clayey flysch units. An integrated study, including geological, geomorphological and geotechnical investigations, was carried out to determine the features of the landslide and to plan further investigation and monitoring. In particular, from 2002 to 2004, Differential Global Positioning System monitoring and core drillings, coupled with inclinometer measurements, were carried out to determine the landslide’s kinematics, extent, depth to the surface of rupture and rates of movement. Inclinometer data revealed the presence of the rupture surface at a depth of about 20 m. DGPS monitoring allowed rates of movement up to several tens of centimetres per year to be recorded. The nearby village of Civitanova del Sannio can still be considered at risk due to the landslide, as recent remedial works, consisting mainly of very shallow re-shaping of the slope by blasting and partial filling of trenches, did not succeed in stopping its movement.  相似文献