Puerto Rico by W. Lusardi
International Journal of Nautical Archaeology, 2010
The waters of Puerto Rico harbour the remains of thousands of years of human occupation. The isla... more The waters of Puerto Rico harbour the remains of thousands of years of human occupation. The island played a key role in the
first decades of European exploration of the New World, and its coasts and estuaries have preserved an extensive record of the
island’s maritime history, before and after the arrival of the Europeans. The objective of this project is to study Puerto Rico’s
seafaring history through the investigation of its submerged cultural heritage, with a particular focus on the history of European
shipbuilding. In 2008 the authors started with survey on the north coast.
Papers by W. Lusardi
International Journal of Nautical Archaeology, 2000
Beaufort Inlet site 0003BUI was discovered off the coast of North Carolina in the autumn of 1996.... more Beaufort Inlet site 0003BUI was discovered off the coast of North Carolina in the autumn of 1996. Preliminary analysis of the site and its artefact assemblage has led researchers to tentatively identify the shipwreck as the pirate Blackbeard's flagship, Queen Anne's Revenge, known to have been lost near the inlet in 1718. A wide variety of artefacts have been recovered during the three field seasons conducted annually since 1997; this paper presents the most recent findings.
Romarchite and associated phases as common corrosion products on pewter artifacts from marine archaeological sites
Geoarchaeology, 2004
Corrosion products were examined from typical pewter artifacts originating from six different sub... more Corrosion products were examined from typical pewter artifacts originating from six different submerged archaeological sites, dating to between ca. AD 1550 and 1733, along the eastern seaboard of North America and in the Caribbean Sea. The artifacts were viewed as 270450-year ...
The Canadian Mineralogist, 2003
Pewter, a tin-rich alloy, has been widely used for ornamental and utilitarian purposes for the la... more Pewter, a tin-rich alloy, has been widely used for ornamental and utilitarian purposes for the last 400 years because it is durable, relatively easily worked, resistant to corrosion, and similar to silver in appearance. Pewter plates and implements have been recovered and examined from what is believed to be the wreck site of the Queen Anne's Revenge, flagship of the pirate Blackbeard, that sank near Beaufort, North Carolina in 1718. All of the pewter artifacts from the site display a surface veneer of corrosion products and may be viewed as experiments on tin corrosion that have been continuously in operation for more than 280 years. Mineralogical examination of the pewter samples has revealed that the corrosion products are composed of romarchite (SnO), hydroromarchite [Sn 3 O 2 (OH) 2 ], and abhurite [Sn 21 Cl 16 (OH) 14 O 6 ]. The corrosion generally develops in crudely concentric layers, with an inner layer of abhurite in contact with the pewter; the overlying outer layers consist of romarchite and hydroromarchite. Romarchite, hydroromarchite, and abhurite occur as irregular grains and laths up to 100 micrometers in length. Abhurite also occurs as masses of equant grains with abundant small inclusions of residual pewter. Thermodynamic considerations reveal that romarchite may be a metastable phase, and is present as the result of sluggish kinetics in the process of the formation of cassiterite (SnO 2 ), the most stable tin oxide in most natural environments. Observation and identification of these phases will be useful in understanding the stability of tin in the weathering environment and the nature of the metal's corrosion products.
Lake Huron Red Tails! Tuskegee Airmen in Michigan
Contributions To Global Historical Archaeology, Dec 31, 2022
International Journal of Nautical Archaeology, 2010
The waters of Puerto Rico harbour the remains of thousands of years of human occupation. The isla... more The waters of Puerto Rico harbour the remains of thousands of years of human occupation. The island played a key role in the first decades of European exploration of the New World, and its coasts and estuaries have preserved an extensive record of the island's maritime history, before and after the arrival of the Europeans. The objective of this project is to study Puerto Rico's seafaring history through the investigation of its submerged cultural heritage, with a particular focus on the history of European shipbuilding. In 2008 the authors started with survey on the north coast.
Rock, Paper, Shipwreck! The Maritime Cultural Landscape of Thunder Bay
When the Land Meets the Sea, 2011
Thunder Bay’s maritime cultural landscape affords a unique glimpse into a community’s heritage re... more Thunder Bay’s maritime cultural landscape affords a unique glimpse into a community’s heritage revealed through the natural environment and the cultural modifications to that landscape. For millennia, Thunder Bay and Lake Huron have been viewed as both barriers and avenues for sustenance, transport, and commerce. Changing seasons, water levels, and conditions have simultaneously provided and taken away opportunities to use the lake and its surrounding resources. Although sparsely settled by Native Americans and occasionally visited by French and British explorers, Thunder Bay was not inhabited by European Americans until the 1830s when fishermen settled the nearby islands. Lumbermen soon followed, and as fishing camps and sawmills were erected, so to were dams, piers, navigation aids, life-saving stations, and fleets of vessels. Thunder Bay’s landscape was continually altered to facilitate commerce, but eventual economic decline resulted in abandonment of onshore and submerged structures, and ships related to particular industries. Placing shipwrecks and other cultural features within the broader context of the maritime cultural landscape presents a more complete picture of Thunder Bay’s collective maritime past.
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Puerto Rico by W. Lusardi
first decades of European exploration of the New World, and its coasts and estuaries have preserved an extensive record of the
island’s maritime history, before and after the arrival of the Europeans. The objective of this project is to study Puerto Rico’s
seafaring history through the investigation of its submerged cultural heritage, with a particular focus on the history of European
shipbuilding. In 2008 the authors started with survey on the north coast.
Papers by W. Lusardi