Academic literature on the topic 'Shipwrecks'

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Journal articles on the topic "Shipwrecks"

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Meyer-Kaiser, KS, CH Mires, and B. Haskell. "Invertebrate communities on shipwrecks in Stellwagen Bank National Marine Sanctuary." Marine Ecology Progress Series 685 (March 10, 2022): 19–29. http://dx.doi.org/10.3354/meps13987.

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Shipwrecks serve as island-like habitats on the seafloor and can be conceptualized as unplanned, unprepared, and unintentional artificial reefs. Most artificial reef studies have been restricted in scope and duration, but we have leveraged a dataset of 18 shipwrecks ranging from 15 to 155 yr old and at 24 to 140 m depth in Stellwagen Bank National Marine Sanctuary (SBNMS; Massachusetts, USA) to investigate the factors influencing benthic invertebrate communities on shipwrecks. Classical ecological relationships between species richness and composition and shipwreck size and age (e.g. a log-linear relationship between species richness and shipwreck size) were not observed. Our hypotheses for turnover in species composition with shipwreck age and a significant influence of shipwreck material (i.e. metal, wood) on species composition were also not supported. Rather, our results showed turnover in species composition with shipwreck size, as larger shipwrecks supported dense populations of sessile species such as sponges and anemones. We also observed a high level of patchiness and a significant influence of depth on shipwreck invertebrate communities. These results highlight the importance of shipwrecks as habitats in SBNMS. High-profile shipwrecks in particular support dense invertebrate populations, but the degradation of wooden shipwrecks reduces this effect over time. Our study has implications for future artificial reef management, showing that larger shipwrecks are more valuable habitats, and that reef placement has a strong influence on the resulting species composition.
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Shapreau, CJ. "Case note. The Brother Jonathan decision: treasure salvor's 'actual possession' of shipwreck gives rise to federal jurisdiction for title claim." International Journal of Cultural Property 7, no. 2 (January 1998): 475–95. http://dx.doi.org/10.1017/s094073919877047x.

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The Supreme Court issued its decision in Spring 1998 in California and State Lands Commission v Deep Sea Research, Inc. making the noteworthy holding that treasure salvors that have 'actual possession' of shipwrecks located on a state's submerged lands will not be ousted from federal court jurisdiction on Eleventh Amendment immunity grounds. Calling into question the Supreme Court's previous opinion involving shipwreck litigation in Florida Dept. of State v. Treasure Salvors, Inc., decided in 1982, the Court has made clear that claims for title to such submerged artifacts can now be fully adjudicated in federal court. In making this significant ruling, and in redefining what constitutes a 'colorable claim' to title in shipwrecks under the Abandoned Shipwreck Act, the Court resuscitated legal precedent that predates the 1865 sinking of shipwrecked Brother Jonathan.
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Baco, Zainuddin, Baszley Bee B. Basrah Bee, and Stephen Chia. "Arkeologi Maritim: Kapal Karam Di Semenanjung Malaysia." Kajian Malaysia 40, no. 2 (October 31, 2022): 169–95. http://dx.doi.org/10.21315/km2022.40.2.8.

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This article discusses archaeological research of shipwrecks as a form of underwater cultural heritage with special reference to ancient shipwrecks and their cargoes discovered in Peninsular Malaysia from 1907 to 2019. The discussion will include the formation process of underwater cultural heritage, especially the discoveries of shipwreck sites and cargoes which have connections as well as trade, cultural and political relationships with early maritime kingdoms in Southeast Asia. The significance of shipwreck sites in the development of archaeological shipwrecks in Peninsular Malaysia will also be discussed in the contexts of research and education of our national history. This is important for the early development of maritime archaeology’s potential, particularly on shipwrecks from the 1990s to the early first decade of the 21st century.
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Popta, Y. T. Van, and A. F. L. Van Holk. "Where are the Shipwrecks of the Zuiderzee? A new version of the Shipwreck Database Flevoland (3.0), based on spatial and archaeohistorical research into wreck sites in the province of Flevoland." Palaeohistoria 60 (December 14, 2018): 191. http://dx.doi.org/10.21827/5beab08b4d742.

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For several decades, maritime archaeologists, state authorities and maritime-archaeological companies have worked with an outdated and inaccurate dataset (with regard to position and presence) concerning shipwrecks in part of the Zuiderzee region. The information about these wrecks was scattered over multiple databases (both analogue and digital), documenting different numbers of shipwrecks across Flevoland. In order to gain a clear and accurate overview of the shipwrecks that were discovered in the former Zuiderzee, the Shipwreck Database Flevoland (SDF) was compiled. The third version of this database is presented in this article and is mainly aimed at documenting the present condition of shipwreck sites (wrecks in situ, removed or unknown) and the accuracy of the coordinates that mark the location of the shipwreck (exact, approximate or unknown). The excavation documentation of the shipwrecks was used for retrieving accurate descriptions of wreck sites, although in most cases these descriptions referred to drainage ditches and other local topography that since have been removed or altered. Historical aerial photographs, LiDAR data and satellite images were used for tracing the course of lost but relevant drainage ditches and the exact locations of shipwrecks. Multiple wreck sites were discovered in the aerial photographs, in the form of crop- and soil-marks revealing either wrecks or former excavation trenches. These visible wreck sites correspond perfectly to the locations mentioned in the research reports and prove the accuracy and feasibility of the used methodology. The new version of the SDF therefore provides more accurate distribution and density maps of wreck sites in the province of Flevoland, which is of importance for spatial maritime archaeological research. Furthermore, the newinformation on the accuracy and presence/absence of shipwrecks can be used in archaeological heritage management. Only shipwrecks that are still present in the former seabed, and whose recorded location is reasonably accurate, can be effectively protected.
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Moloney, Michael J. "Re-imagining shipboard societies: A spatial approach to analysing ships of the British Royal Navy during the eighteenth and nineteenth centuries." International Journal of Maritime History 30, no. 2 (May 2018): 315–42. http://dx.doi.org/10.1177/0843871418766766.

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Shipwrecks have always occupied a place of primary interest in the field of maritime archaeology. This article examines the spatial organization of ships in an effort to reconstruct the social dynamics of shipboard society. Shipwrecks are often the result of site formation processes that ‘spill’ the artefacts that are often used to describe shipboard life. In order to engage a holistic interpretation of shipwreck sites we must explore the structure of the ships themselves. This article contributes methodologies for a quantitative analysis of shipwreck sites to the growing toolkit of shipwreck investigation.
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Craig, Jennifer. "VALUE OF SHIPWRECK DATA IN DATABASES." Journal of Indo-Pacific Archaeology 36 (November 22, 2016): 34. http://dx.doi.org/10.7152/jipa.v36i0.14915.

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<p>Shipwrecks are valuable archaeological sites that can contribute enormous amounts of information to Social/Natural Sciences and Humanities. This paper discusses how data from shipwreck sites can expand a multidisciplinary database. Their value is highlighted with examples of shipwrecks in Southeast Asia and their contribution to an ongoing database project at McGill University’s Indian Ocean World Center. </p>
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Character, Leila, Agustin Ortiz JR, Tim Beach, and Sheryl Luzzadder-Beach. "Archaeologic Machine Learning for Shipwreck Detection Using Lidar and Sonar." Remote Sensing 13, no. 9 (April 30, 2021): 1759. http://dx.doi.org/10.3390/rs13091759.

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The objective of this project is to create a new implementation of a deep learning model that uses digital elevation data to detect shipwrecks automatically and rapidly over a large geographic area. This work is intended to apply a new methodology to the field of underwater archaeology. Shipwrecks represent a major resource to understand maritime human activity over millennia, but underwater archaeology is expensive, misappropriated, and hazardous. An automated tool to rapidly detect and map shipwrecks can therefore be used to create more accurate maps of natural and archaeological features to aid management objectives, study patterns across the landscape, and find new features. Additionally, more comprehensive and accurate shipwreck maps can help to prioritize site selection and plan excavation. The model is based on open source topo-bathymetric data and shipwreck data for the United States available from NOAA. The model uses transfer learning to compensate for a relatively small sample size and addresses a recurring problem that associated work has had with false positives by training the model both on shipwrecks and background topography. Results of statistical analyses conducted—ANOVAs and box and whisker plots—indicate that there are substantial differences between the morphologic characteristics that define shipwrecks vs. background topography, supporting this approach to addressing false positives. The model uses a YOLOv3 architecture and produced an F1 score of 0.92 and a precision score of 0.90, indicating that the approach taken herein to address false positives was successful.
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KIZILDAĞ, Nilhan. "Mapping and Recording of Ancient Shipwrecks by Using Marine Remote Sensing Techniques: Case Studies From Turkish Coasts." Marine Science and Technology Bulletin 11, Early View (September 30, 2022): 331–42. http://dx.doi.org/10.33714/masteb.1144180.

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Within the context of the “Shipwreck Inventory Project of Turkey (SHIPT),” numerous acoustic remote sensing and photogrammetric surveys have been carried out along the coast of Turkey with the aim of detecting, mapping and documenting underwater cultural heritage. During the surveys, many ancient shipwreck sites have been discovered thanks to advanced technologies such as high-resolution side-scan sonar (SSS), sub-bottom profiler (SBP), and remotely operated vehicle (ROV). Once acoustic anomalies have been located, shipwreck sites have been verified by ROV and documented by 3D photogrammetric survey. Analysis of the collected data confirmed that the survey design and data acquisition parameters are the most important criteria for obtaining best quality image. Performing high-resolution remote sensing and photogrammetric survey for shipwrecks using optimal data collection techniques provides rapid results, decreasing time and budget and increasing the quantity of underwater cultural heritage that can be recorded. This paper discusses proper survey stages for the rapid, effective, high quality detection and recording of the shipwrecks using advanced technology. Acoustic images of shipwrecks comparing cargo, period, and form are also introduced in this paper, for the first time, which provide data on interpreting anomalies accurately for further exploration and monitoring surveys.
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Xing, Hui, Shu Lin Duan, Hong Liang Yu, and Qin An Liu. "The Study on Accident Probability Risk Assessment Methods for Shipwrecks in Inland Waterways." Applied Mechanics and Materials 97-98 (September 2011): 1027–31. http://dx.doi.org/10.4028/www.scientific.net/amm.97-98.1027.

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For disposal of the shipwrecks in the coastal and inland waterways timely and properly to ensure navigable vessels safely and smoothly, the process and mechanism of navigable vessels collision with shipwrecks was analyzed and shipwreck accident probabilistic risk assessment model was established based on event tree analysis. Assuming the traffic pattern in normal distribution, geometric probability of navigable vessels into collision route was determined according to the location of shipwreck. Reference deviation probability was employed to describe the failure probability of collision avoidance due to abnormal navigable vessels and was determined according to the historic accidents at domestic and abroad waterways, taking into account wind, current, visibility, passageways and traffic density for correction. The model was proved to be practical and operational for shipwreck treatment decision support in specific waterways.
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Haridas, Dhanya, Justin C. Biffinger, Thomas J. Boyd, Preston A. Fulmer, Leila J. Hamdan, and Lisa A. Fitzgerald. "Laboratory growth of denitrifying water column microbial consortia from deep-sea shipwrecks in the northern Gulf of Mexico." F1000Research 6 (October 13, 2017): 1834. http://dx.doi.org/10.12688/f1000research.12713.1.

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Background: Shipwrecks serve as a rich source for novel microbial populations that have largely remained undiscovered. Low temperatures, lack of sunlight, and the availability of substrates derived from the shipwreck’s hull and cargo may provide an environment in which microbes can develop unique metabolic adaptations. Methods: To test our hypothesis that shipwrecks could influence the microbial population involved in denitrification when a consortium is grown in the laboratory, we collected samples proximate to two steel shipwrecks in the northern Gulf of Mexico. Then under laboratory conditions, we grew two independent denitrifying microbial consortia. Each consortium was grown by using the BART assay system and analyzed based on growth kinetics, ion chromatography and 16S amplicon sequencing.Results: Both denitrifying consortia were different from each other based on varied growth profiles, rates of nitrate utilization and 16S amplicon sequencing.Conclusions: Our observations conclude that the laboratory grown water column microbial consortia from deep-sea shipwrecks in the Gulf of Mexico are able to undergo aggressive denitrification.
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Dissertations / Theses on the topic "Shipwrecks"

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Wells, Lisa Janice. "Newfoundland shipwrecks in the late nineteenth century : communities and their response (with special reference to Trepassey and Harbour Grace) /." Internet access available to MUN users only, 2002. http://collections.mun.ca/u?/theses,167978.

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Lewis, Amy Jeannette. "Surveying Underwater Shipwrecks with Probabilistic Roadmaps." DigitalCommons@CalPoly, 2019. https://digitalcommons.calpoly.edu/theses/2059.

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Almost two thirds of the Earth's surface is covered in ocean, and yet, only about 5% of it is mapped. There are an unknown amount of sunken ships, planes, and other artifacts hidden below the sea. Extensive search via boat and a sonar tow fish following a standard lawnmower pattern is used to identify sites of interest. Then, if a site has been determined to potentially be historically significant, the most common next step is a survey by either a human dive team or remotely operated vehicle. These are time consuming, error prone, and potentially dangerous options, but autonomous underwater vehicles (AUVs) are a possible solution. This thesis introduces a system for automatically generating paths for AUVs to survey and map shipwrecks. Most AUVs include software to set a lawnmower path for a given region of ocean, and individualized paths can be set via specifying GPS encoded nodes for the AUV to pass through. This thesis presents an algorithm for generating an individualized path that permits the AUV, equipped with a camera to "see" all sides of a region of interest (i.e. a shipwreck). This allows the region of interest to be completely documented. Photogrammetry can then be used to reconstruct a three-dimensional model, but a path is needed to do so. Paths are generated by a probabilistic roadmap algorithm that uses a rapidly-exploring random tree to quickly cover the volume of exploration space and generate small maps with good coverage. The roadmap is constructed out of nodes, each having its own weight. The weight of a given node is calculated using an objective function which measures an approximate view coverage by casting rays from the virtual view and intersecting them with the region of interest. In addition, the weight of a node is increased if this node allows the AUV to see a new side of the region of interest. In each iteration of the algorithm, a node to expand off of is selected based off its location in space or its high weight, a new node with a given amount of freedom is generated, and then added to the roadmap. The algorithm has degrees of freedom in position, pitch, and yaw as well as the objective function to encourage the path to see all sides of the region of interest. Once all sides of the region of interest have been viewed, a path is determined to be complete. The algorithm was tested in a virtual world where the virtual camera acted as the AUV. All of the images collected from our automatically generated path were used to create 3D models and point clouds using photogrammetry. To measure the effectiveness of our paths versus the pre-packaged lawnmower paths, the 3D models and point clouds created from our algorithm were compared to those generated from running a standard lawnmower pattern. The paths generated by our algorithm captured images that could be used in a 3D reconstruction which were more detailed and showed better coverage of the region of interest than those from the lawnmower pattern.
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Newdigate, James. "Salvaging historic shipwrecks in South Africa." Master's thesis, University of Cape Town, 2013. http://hdl.handle.net/11427/4490.

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The mystique surrounding shipwrecks has intrigued man since the inception of sea travel itself. The wreck lies as a submerged time capsule, holding secrets of the past, patiently waiting to tell her stories, with rich rewards for archaeologists and salvors alike. Modern advances in underwater technology have supported a drastic increase in the discovery and retrieval of shipwrecks and their cargoes. Accompanying such advances are tensions which have emerged between interested parties in historic wrecks, the most notorious being between two broad interest groups; those who are attracted by the commercial value of such wrecks and those concerned to protect their historical and cultural value. This dissertation considers the viability of salvage law in the context of historic shipwrecks in South African waters.
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Kamm, Nadia. "An overview of pollution from Shipwrecks." Master's thesis, University of Cape Town, 2014. http://hdl.handle.net/11427/4642.

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Heydorn, Allan. "The evolution of legislation for the protection and preservation of historical shipwrecks in South Africa." Thesis, University of Cape Town, 1991. http://hdl.handle.net/11427/23239.

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Williams, Brian Benjamin. "The development and implementation of a management programme for maritime archaeology in Northern Ireland." Thesis, Ulster University, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.273793.

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Eslinger, Kimberly Lane Runyan Timothy J. ""-- And all the men knew the colors of the sea-- " : historical and archaeological investigation of the SS Commodore, Ponce Inlet, Florida /." Access via ScholarShip, 2005. http://hdl.handle.net/10342/1113.

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Thesis (M.A)--East Carolina University, 2005.
Presented to the faculty of the Department of History. Advisor: Timothy Runyan. Includes bibliographical references (leaves [134]-141). Also available via the World Wide Web. Adobe reader required.
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Marken, Mitchell W. "Ceramics carried by Spanish ships from the 16th to the 18th centuries, with specific reference to collections recovered from shipwrecks in the Caribbean basin, Britain and Bermuda." Thesis, University of St Andrews, 1991. http://hdl.handle.net/10023/15107.

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This paper records and analyses the common ware pottery finds from Spanish shipwrecks dated from the 16th to the 18th centuries. A chronological presentation of olive jar-type botijas (olive jars), Columbia Plain, and other coarse earthenware types from accurately dated shipwreck assemblages has provided the basis for reliable typologies, and helped to refine previous studies. The shipwreck collections utilised consist of 17 accurately dated wrecks. First hand recording of pottery is included for 13 of the assemblages. The collections of the ceramics are housed in locations in Britain, the Caribbean, Florida, Texas, and the state of Louisiana. The collections are all from ships which were engaged in Spain's New World colonisation and trade, either en route to the Indies or returning. The exception is the material from the Spanish Armada which is included because of its official nature and the fact that outfitting occurred at Seville, the primary port for the Indies trade. In addition to the primary material, reference is made to pottery finds from contemporaneous shipwrecks which have previously been recorded, in addition to inclusions of historical research. Availability of the collections for further study is also discussed. Ceramics have a tendency to change over relatively short periods of time and using pottery finds as primary dating evidence has proved effective. Some of the most common Spanish ceramic traditions found on New World colonial terrestrial sites, however, have proved difficult to analyse because they are usually undecorated and exhibit relatively little development over the period in question. The finds from shipwrecks include several intact vessels spanning the period and recording of the finds has proved to reveal several distinguishing characteristics which have formed the basis for constructing new typologies of the most common wares encountered.
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Grussing, Valerie Fridgen Joseph. "Reanimating the Graveyard: Heritage Tourism Development of North Carolina Shipwrecks." [Greenville, N.C.] : East Carolina University, 2009. http://hdl.handle.net/10342/2216.

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Danilovic, Vladimir <1975&gt. "IN-SITU CONSERVATION OF THE SHIPWRECKS IN THE MEDITERRANEAN SEA." Master's Degree Thesis, Università Ca' Foscari Venezia, 2014. http://hdl.handle.net/10579/5482.

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ABSTRACT The main objective of this thesis is to carry out a complete analysis of all the key factors that positively or negatively affect the conservation of archaeological material in order to find the best possible way for the implementation of in-situ conservation of shipwrecks in the Mediterranean Sea. It must be kept in mind that in-situ conservation in the Mediterranean Sea is a very complicated process that requires a multidisciplinary approach and analysis of the most important parameters and factors. For this reason it was necessary to break down the entire problem into its basic components (definition, value and importance of the process of formation of shipwreck sites, the greatest threats that jeopardize it) in order to better understand and find a more efficient method for protection and in-situ conservation of shipwreck sites. In addition, this complex analysis will be supported from the theoretical point of view, as well as by the latest researches conducted in the area of the Mediterranean Sea in order to determine the real potential for the conservation of shipwrecks. It is known that the Mediterranean Sea does not provide good conditions for conservation and that the main problems associated with in-situ conservation in the Mediterranean Sea are related to natural environmental conditions, more precisely, physical and biological impacts, but also the human factors that have the greatest influence on the degradation of a shipwreck. For this reason, a large part of the thesis will be devoted to the analysis of these factors and the potential danger that they pose to a shipwreck site. It is highly important to understand how significant their impact on the degradation of archaeological shipwreck sites is, and that the future protection methods and in-situ conservation will mostly depend on them. Also, will be necessary to provide an argumentative reflection and comparative analysis of the methods and results of studies that have been applied in other areas. For this reason, the importance of projects that were carried out in the Baltic Sea in recent decades must be noted. Discoveries and conclusions from these projects have made a great contribution in the field of in-situ conservation and gained experience and knowledge have enabled the use of this method even in conditions that are significantly different from the Baltic, like, for example, in the area of the Mediterranean Sea.
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Books on the topic "Shipwrecks"

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Vigliano, Adrian. Shipwrecks. Chicago, Ill: Raintree, 2011.

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Vigliano, Adrian. Shipwrecks. Oxford: Raintree, 2011.

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Elliott, Jane. Shipwrecks. Bothell, WA: Wright Group, 1996.

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Akira, Yoshimura. Shipwrecks. New York: Harcourt Brace & Co., 1996.

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Macdonald, Fiona. Shipwrecks. New York: Gareth Stevens Publishing, 2015.

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Hook, Jason. Shipwrecks. London: Belitha, 2003.

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Spence, David. Shipwrecks. Hauppauge, N.Y: Barron's, 1999.

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Stewart, James. Shipwrecks. North Mankato, MN: Smart Apple Media, 2007.

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Jennings, Philip S. Shipwrecks. London: Bison Books, 1994.

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L, Gibbins David J., and Adams Jonathan, eds. Shipwrecks. Abingdon [England]: Routledge Journals, 2001.

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Book chapters on the topic "Shipwrecks"

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Arnold, J. Barto. "Texas Shipwrecks." In International Handbook of Underwater Archaeology, 207–19. Boston, MA: Springer US, 2002. http://dx.doi.org/10.1007/978-1-4615-0535-8_14.

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Laubenheimer, Fanette. "Amphoras and Shipwrecks." In A Companion to the Archaeology of the Roman Republic, 97–109. Oxford: Blackwell Publishing Ltd, 2013. http://dx.doi.org/10.1002/9781118557129.ch6.

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Penhallurick, R. D. "Tin in shipwrecks." In Tin in Antiquity, 104–9. London: Routledge, 2023. http://dx.doi.org/10.4324/9781003419266-19.

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Ciarlo, Nicolás C. "Historical Shipwrecks, Archaeometry of." In Encyclopedia of Global Archaeology, 5131–47. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-30018-0_3120.

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Lawrence, Susan, and Peter Davies. "Shipwrecks and Maritime Trade." In An Archaeology of Australia Since 1788, 69–94. New York, NY: Springer New York, 2010. http://dx.doi.org/10.1007/978-1-4419-7485-3_4.

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Ciarlo, Nicolás C. "Historical Shipwrecks, Archaeometry of." In Encyclopedia of Global Archaeology, 1–17. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-319-51726-1_3120-1.

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Ciarlo, Nicolás C. "Historical Shipwrecks, Archaeometry of." In Encyclopedia of Global Archaeology, 1–17. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-319-51726-1_3120-2.

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Muckelroy, Keith. "The Archaeology of Shipwrecks." In Maritime Archaeology, 267–90. Boston, MA: Springer US, 1998. http://dx.doi.org/10.1007/978-1-4899-0084-5_31.

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Fehimović, Dunja. "Conclusion: Shipwrecks and Seasickness." In National Identity in 21st-Century Cuban Cinema, 247–70. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-93103-6_6.

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Brennan, Michael L. "Quantification of Bottom Trawl Damage to Ancient Shipwrecks: A Case Study from the Coastal Waters of Turkey." In SpringerBriefs in Archaeology, 41–52. Cham: Springer Nature Switzerland, 2024. http://dx.doi.org/10.1007/978-3-031-57953-0_4.

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AbstractAncient shipwrecks in the Mediterranean region are particularly susceptible to damage by bottom trawl fishing activities because of their low relief on the seabed. Shipwrecks from the Greek and Roman periods typically consist of mounds of amphora cargoes, which slump onto the seabed in the shape of the vessel outline once the wooden hulls deteriorate following consumption by wood boring organisms. These low relief mounds do not snag trawl nets the way steel-hulled shipwrecks do in which fishers lose gear and could avoid those locations later. Instead, the fragile ceramic artefacts that comprise ancient wrecks are exposed to repeated strikes by trawls until they are broken and scattered across the seabed, potentially to the extent that they can no longer be found. Expeditions from 2008 through 2013 by Ocean Exploration Trust (OET) and the Exploration Vessel Nautilus documented numerous ancient shipwrecks in the Black and Aegean Sea coastal waters of Turkey that exhibited a range of damage from trawls, and which allowed for quantification of some of this damage.
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Conference papers on the topic "Shipwrecks"

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Collina, Matteo, Antonio Lagudi, Fabio Bruno, Vincenzo Cosentino, Raffaele Peluso, Anastatios Ktistis, and Angelos Manglis. "Exploring modern shipwrecks using digital technologies: the case study of the Christoforos Shipwreck." In 2022 IMEKO TC4 International Conference on Metrology for Archaeology and Cultural Heritage. Budapest: IMEKO, 2023. http://dx.doi.org/10.21014/tc4-arc-2022.082.

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Rocha, M. S., J. R. Oliveira, M. A. Silva, R. M. B. Horta, S. L. D. C. Brasil, L. J. Carvalho, E. Kassab, et al. "A New Concept of Corrosion Protection and Integrity of Subsea System in Brazil." In Offshore Technology Conference. OTC, 2024. http://dx.doi.org/10.4043/35135-ms.

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Abstract Over the past four decades, offshore oil and gas (O&G) production in Brazil has transitioned from shallow waters to deep waters, necessitating considerations for ensuring the integrity of subsea systems in this challenging environment. This study focused on field inspection reports that provided insights into the condition of carbon steel pipelines and subsea equipment, which are protected by galvanic cathodic protection. The findings from laboratory testing and thermodynamic simulations conducted under varying environmental conditions were compared with these evaluations. Additionally, a comprehensive survey of historical shipwrecks, which lacked corrosion protection and had remained on the seabed for decades, was conducted. The preservation and partial integrity of these shipwrecks were inferred from images captured during inspections conducted by remotely operated underwater vehicles (ROVs). By comparing the results of laboratory tests, subsea inspection reports, thermodynamic simulations, and ROV images of shipwrecks, it was observed that the corrosion rate in seawater at considerable depths is significantly reduced. This phenomenon allows shipwrecks to persist on the seabed for extended periods without severe corrosion. Furthermore, the analysis of PETROBRAS technical inspection reports on subsea equipment revealed that components of offshore production systems located in deep waters, which lack effective galvanic cathodic protection, continue functioning without compromising their structural integrity. This analysis supported the investigation of a corrosion protection technique applied to subsea production systems in deep water, based on kinetic considerations that complement existing thermodynamic-based criteria, with minimal risk to structural integrity. Importantly, further investigation is warranted to explore alternative cathodic protection potentials, particularly those exceeding −800 mVAg/AgCl, under high pressure and reduced temperatures. This initiative has contributed to the reduction of CO2 emissions, as there is no longer a need to make two trips to the installation site – one to install the anode skid and another to confirm the reestablishment of the protection potential.
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Fader, G. B. J., and R. O. Miller. "The discovery of shipwrecks through marine geological mapping." In Oceans '97. MTS/IEEE Conference Proceedings. IEEE, 1997. http://dx.doi.org/10.1109/oceans.1997.634352.

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Lorentzen, Ole Jacob, Roy Edgar Hansen, Torstein Olsmo Sæbø, Stig Asle Vaksvik Synnes, and Marc Geilhufe. "3D rendering of shipwrecks from synthetic aperture sonar." In 6th Underwater Acoustics Conference and Exhibition. ASA, 2021. http://dx.doi.org/10.1121/2.0001483.

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Miller, Jonathon D., Brett J. Warren, and Luc G. Chabot. "Microbiologically Influenced Corrosion of Gulf of Mexico Mooring Chain at 6,000 Feet Depths." In ASME 2012 31st International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/omae2012-84067.

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During a post-installation inspection of a polyester and chain mooring system in water depths of approximately 6,000 ft, evidence of microbiologically influenced corrosion (MIC) was found in the form of rust tubercles known as rusticles. These porous concretions commonly form on submerged steel shipwrecks and provide evidence that subsea corrosion occurs in a hypoxic environment. Iron and sulfate-reducing bacteria cause corrosion in marine environments. This paper will discuss one form of MIC found on submerged steel structures, analyze the ambient conditions required for MIC to occur, and compare rusticles found during the mooring inspection to those found on other subsea shipwrecks such as the RMS Titanic. An analysis of the type of iron used in mooring chains and the rate of rusticle formation will be presented. Possible remedies to prevent rusticle growth on mooring chains will be summarized.
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Schwemmer, Robert V. "Shipwrecks as Environmental Threats to California's National Marine Sanctuaries." In California and the World Ocean 2002. Reston, VA: American Society of Civil Engineers, 2005. http://dx.doi.org/10.1061/40761(175)70.

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Boldreel, Lars Ole, Ole Gron, Ehud Galili, and Debbie Cvikel. "3D documentation of shipwrecks embedded in sea-floor sediments." In 2017 IEEE/OES Acoustics in Underwater Geosciences Symposium (RIO Acoustics). IEEE, 2017. http://dx.doi.org/10.1109/rioacoustics.2017.8349750.

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Gearhart, Robert. "Wooden Shipwrecks of the Central and Western Gulf of Mexico." In Offshore Technology Conference. Offshore Technology Conference, 2011. http://dx.doi.org/10.4043/21227-ms.

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Evans, Amanda M., and Erin E. Voisin. "Geophysics, Industry, and Shipwrecks on the Gulf of Mexico OCS." In Offshore Technology Conference. Offshore Technology Conference, 2011. http://dx.doi.org/10.4043/21697-ms.

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Diercks, A. R., V. L. Asper, M. Woolsey, J. L. Williams, and F. Cantelas. "NIUST AUV's study shipwrecks in the northern Gulf of Mexico." In 2010 IEEE/OES Autonomous Underwater Vehicles (AUV). IEEE, 2010. http://dx.doi.org/10.1109/auv.2010.5779679.

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Reports on the topic "Shipwrecks"

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Fader, G. B. J., R. O. Miller, and B. J. Todd. Shipwrecks of Halifax Harbour, Nova Scotia, Canada. Natural Resources Canada/CMSS/Information Management, 2023. http://dx.doi.org/10.4095/331506.

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The mapping of Halifax Harbour has revealed the presence of about 45 shipwrecks in the Harbour. Near the mouth of the harbour, over 50 magnetic anomalies have been discovered, most of which also represent shipwrecks. There may be many others that are buried beneath the muddy sediments that require other techniques for discovery. Together they represent a rich archaeological heritage yet to be fully explored.
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Eeckman, Axel. Studying woodworking technology on ancient shipwrecks through digital photography and photogrammetry. Honor Frost Foundation, 2020. http://dx.doi.org/10.33583/mags2019.02.

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Endina, Stella. Shipwrecks with Baetican cargo in the Western Mediterranean, First to Third Centuries AD: maritime trade and cargo composition. Honor Frost Foundation, 2020. http://dx.doi.org/10.33583/mags2020.02.

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BONJOUR, Lucas, Myriam STERNBERG, and Élisabeth VEYRAT. Study of Cod reserves from the La Hougue Battle Shipwrecks (1692) through ichthyofauna remains: Supply and food aboard. Honor Frost Foundation, 2023. http://dx.doi.org/10.33583/mags2021.02.

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In 1692, in the context of the Nine Years War (1689-1697), Admiral Tourville’s French fleet faced the Anglo-Dutch alliance along the Norman coast. Five large French men-of-war were reduced to ashes close to Tatihou island in St-Vaast-La Hougue bay (Manche county, France). Discovered in 1985, these shipwrecks have been excavated from 1990 to 1995 by Michel L’Hour and Élisabeth Veyrat, from the Département des Recherches Archéologiques Subaquatiques et Sous-Marines (DRASSM, Ministry of Culture). Among the numerous remains, fish bones were found in large quantities on one of the wrecks. Preliminary studies conducted between 1990 and 1992 by Myriam Sternberg determined that the fish remains were cod (Gadus morhua L.) which were reserved for food aboard. The data recovery during the year 2020-2021 allowed the acquisition of new knowledge on the supplying and the process carried out on this fish.
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Fader, G. B. J., R. O. Miller, and B. J. Todd. Unusual features in Halifax Harbour, Nova Scotia, Canada, Part 1. Natural Resources Canada/CMSS/Information Management, 2023. http://dx.doi.org/10.4095/331503.

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The seabed of Halifax Harbour contains a variety of features that can be classified into natural and anthropogenic features. Natural features are formed by nature and consist of bedforms such as sand waves, sedimentary furrows, boulder berms, moraines, pockmarks, etc. Anthropogenic features are those formed by human activity and include anchor marks, cables, shipwrecks, dredge spoils, bridge and dock remains, etc. The anthropogenic imprint on the Harbour bottom is very dense, particularly in the inner Harbour, and makes the collection of natural unaffected seabed samples difficult. This poster illustrates and describes boulder berms, dredged areas and spoils, spud can marks, mining pits, and enigmatic gravel circles.
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Fader, G. B. J., R. O. Miller, and B. J. Todd. Unusual features in Halifax Harbour, Nova Scotia, Canada, part 2. Natural Resources Canada/CMSS/Information Management, 2023. http://dx.doi.org/10.4095/331505.

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The seabed of Halifax Harbour contains a number of features that can be classified into natural and anthropogenic features. Natural features are formed by nature and consist of bedforms such as sand waves, sedimentary furrows, boulder berms, moraines, pockmarks, etc. Anthropogenic features are those formed by human activity and include anchor marks, cables, shipwrecks, dredge spoils, bridge and dock remains. The anthropogenic imprint on the Harbour bottom is very dense, particularly in the inner Harbour, and makes the collection of natural unaffected samples difficult. This poster illustrates and describes anchor marks, gassy sediments, sedimentary furrows, pockmarks, the remnants of submarine net emplacements, vehicles dumped on the seabed, and an area of seafloor rich in glass bottles.
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Cohen, M., and M. Creisher. The Maʻagan Mikhael B Shipwreck: Preliminary report. Honor Frost Foundation, 2020. http://dx.doi.org/10.33583/utm2020.02.

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Bazzano, C., T. Gambin, and R. LaRocca. Mixed Cargoes in the Western Mediterranean during Late Antiquity: the Messina 1 shipwreck. Honor Frost Foundation, 2020. http://dx.doi.org/10.33583/utm2020.05.

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Gonzalez-Esteban, Cristina. Black Sea Wreck Virtual Reconstruction to Reinvigorate Archaeological Data and Comparative Studies. Honor Frost Foundation, 2023. http://dx.doi.org/10.33583/mags2021.07.

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This short report tests a repeatable methodology for creating detailed virtual reconstructions where the model is a scientific container of the reconstruction information. The project reconstructed a Black Sea shipwreck using a photogrammetry survey and proposed a hypothesis of how it would have looked prior to sinking. To this “shell”, the metadata and paradata were added using BIM: Extended Matrix and Graphic Scale of Evidence. Academically, the “source-based reconstruction” opened a new spectrum of questions related to the ship and its community (chronology, building, propulsion, usage). The models also reported potential as public engagement tools, displaying the scientific background of archaeology.
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Foteini, V., D. Eleni, F. Giorgos, and A. Christos. Towards Spatio-Temporal 3D Visualization of an Underwater Archaeolοgical Excavation: The Case of the Late Bronze Age Shipwreck of Modi. Honor Frost Foundation, 2020. http://dx.doi.org/10.33583/utm2020.08.

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