According to the latest post from John Fardoulis, up to three excavation teams are working each day on the Antikythera wreck site for a total of four and a half hours (at 90 minutes per team). The photo below is the first underwater picture from the site and shows the water dredge being worked by an archaeologist. We see fish and gravel…no artifacts. Previous reports indicate that items have been found but any pictures of this material is to be released by the Greek authorities.
“The underwater excavation is currently in full swing, with multiple 2-3 diver teams making the most of their bottom time each day. A very detailed map has been created for the site by an underwater robot at the beginning of summer and last year, meaning that everything retrieved from the shipwreck can be plotted on this blueprint, which helps us better understand the shipwreck by studying the spatial relationship between objects.”
Additional pictures are being posted at the Antikythera Gallery at http://wp.me/P5zmjV-38
It’s not much, but some news is coming out of the Antikythera project ahead of official announcements from the Greeks. Lead technical diver Phil Short reports: “Work on site this year has located numerous artefacts and excavation and recovery continue. Publication of artefact images is restricted by the Ephorate of Antiquities until their press release but will follow.”
In the meantime, the residents of the island are very much involved in the project. According to Short: “The Mayor of Antikythera commissioned information boards of the ‘Return to Antikythera’ project to display throughout the town including this one with the spear recovered in 2014 taken by Brett Seymour of the U.S. NPS for project sponsor Hublot.”
Phil Short’s wife, Gemma Smith, is the only woman tech diver on the project. She recently did a “fly over” over the site by a remotely operated vehicle. It was used to map locations of the artifacts before their removal.
From this we can infer that artifacts are being located and then mapped “in situ” (mapped ‘in place’ before removal) – indicating the very conservative excavation approach being used by the lead investigators – entirely appropriate on a wreck of this importance.
In the meantime, preparations are underway for the Anitkythera exhibit at the Antiquities Museum in Basel, Switzerland. Andrea Bignasca, at the museum, reports the arrival of the “Odysseus” statue which will be a part of the exhibit. There will be a full disclosure of the current project finds on September 25th at the Museum when the exhibit opens.
Let’s hope we hear from the Greeks well before then!
Divers are now over the site at Antikythera. They are making the last preparations before digging into the sands over the wreck – overburden that may at last reveal more of the contents of a wreck that has astonished the world with magnificent marbles and bronzes from ancient Greece.
Monday and today will see setup of excavation controls over the wreck site. On land, archaeological excavation is relatively simple. The site is squared off on a grid, usually one meter squares aligned with a north-south axis, soil is then removed with shovels, then trowels and artifacts carefully noted as to location and depth. The soil is then carted off in a wheel barrow to be screened for smaller artifacts and organic remains such as seeds, pollen etc. It’s a simple process that can be learned in a few weeks.
But add 40-60 meters of water over the heads of the workers and everything changes. A lot. The past ten days or so have seen the Antikythera teams of Greeks and other nationals haul tons of equipment to the little island and then assembly it for one of the most technologically demanding dives ever mounted in Greek waters. Most of the gear and the preparation concerns the safety of the crew and archaeologists.
The underwater environment means life support – in this case mixed gas rigs that have to be assembled and checked. The original dive in 1900 killed one diver and injured two more. They were diving on air and had minutes on the bottom. This time a team of technical divers will hand-hold the archaeologists. They will have 90 minutes of bottom time but will need to decompress for another hour or more to avoid the ‘bends’ – gas bubbles in the blood. We have chosen one technical diver to follow, Gemma Smith – but it takes an entire team of such experts to keep the archaeologists safe.
Smith, with others, has now completed test dives on the site. She reports on her Face book page, “Absolutely buzzing after my first ever dive on the site of the Antikythera shipwreck. An hour’s bottom time at 60m rigging the site, ready for the archeology to begin tomorrow, and I’m so excited to see what we find!”
‘Rigging the site’ means setting up the control grid and bringing down the dredging equipment from the surface. On Sunday diver, photographer John Fardoulis reported, “Lead divers will set up moorings and lower dredging equipment near the wreck, which is expected to take place tomorrow and Tuesday, subject to weather. Everything’s going to plan, and a lot of preparation is required before excavating can begin.”
Wednesday will see the first handfuls of sand sucked into the water dredge – probably worked by archaeologist Brendan Foley of the Woods Hole Oceanographic Institute, one of the leaders of the project alongside Dr. Theotokis Theodoulou of the Ephorate of Underwater Antiquities of the Hellenic Ministry of Culture and Sports. The dredge will be held above the surface of the sand. The archaeologists will fan sand up from the bottom and into the current of water being sucked into the dredge. It will obviously be a slow and meticulous process!
Excavation will take the form of trenches within the grid squares. If material is encountered, the trenches will most likely be expanded until the entire square is excavated. This is clearly not work that will be completed in one or two seasons. The Archaeology Hour will report on updates as they are received. In the meantime you can hear an interview with Foley prior to leaving for the the project at http://archaeologyhour.podomatic.com
Brendan Foley (bending at left) inspects progress as teaches prepare cables for the water dredge. Note essential high tech component by the cable in the foreground – Duct Tape (work in the vacuum of space and underwater!)
You can connect with the project’s own blog at http://antikythera.whoi.edu/blog/
This weekend scientists, divers and support staff will begin to converge off the Greek Island of Antikythera to mount a technologically advanced excavation of an ancient wreck that in 1901 yielded an astonishing array of marble and bronze artworks along with coins and a navigational computer that continues to astound experts.
Sponge divers discovered the Antikythera wreck in 1900. In the following year they raised bronze and marble sculptures and parts of sculptures that amazed the art world and scientists then, and ever since.
Last year Greek and American archaeologists returned to the site to inspect and map it. They had the advantage of the latest available technology from Woods Hole Oceanographic Institute and other sources. What they found astonished them. In an exclusive interview with the Archaeology Hour, the project’s American leader, archaeologist Brendan Foley, spoke about what lay deep beneath them. “We were able to fully map the site and produced a three dimensional image of the sea bottom. We were shocked to discover the wreck was much larger than earlier work had indicated – 30 to 50 meters (90-100 ft) long! The hull timbers were 11 cm (approx. 41/2”) thick. This would make the wreck bigger than the pleasure barges Caligula built for his artificial lake and they were the largest Roman era ships known.”
“This raises the question of what else may be on the ship. At this point of course we simply do not know – but the speculation has been exciting indeed!”
In 1900 the Greek sponge divers were working in hardhat rigs that allowed them only minutes of bottom time in which to rig marble horses and bronze statues for recovery. One died of the bends (nitrogen gas bubbles in the blood) and two were paralyzed.
The next few weeks over the wreck safety for the archaeologists will be a major factor. The dive teams will consist of a ‘technical diver’ well versed in the new diving technologies to be used, and an archaeologist. Both will be diving on closed circuit mixed gas systems that will allow them to spend as long as 90 minutes on the bottom.
“There will still be a need for an hour or so of decompression to prevent bends, “said Foley, “so each dive will take almost three hours. With this amount of time we expect to complete a great deal of excavation.”
In 1953 explorer Jacques Cousteau located the wreck with the help of MIT technology
Wizard’ Doc Edgerton. Cousteau returned in 1976 to excavate with an airlift and recovered some small bronzes.
“The depth would make an air lift difficult to handle – and we want to handle the excavation and possible finds as delicately as possible,” said Foley. “So, instead, we will used a water dredge – similar to an air lift except that we will hold it above the excavation layer and fan sand into it with our hands. This will allow for delicate retrieval of finds and help a great deal with visibility.”
Delicacy and caution will be essential considering the nature of what the sands of Antikythera may reveal. One object from the 1900 dive that has garnered more attention than any other is the ‘Antikythera mechanism,” a fused clump of finely crafted gears that is thought to be a highly sophisticated navigational computer.
According to Foley, “In its original state the metal components of the mechanism were thin sections of copper alloy. After thousands of years on the sea bottom they would now have the consistency of Fimo craft clay – very fragile indeed.”
It is not surprising that the wreck would have such a sophisticated device aboard. The massive craft appears to have been loaded with amazing art treasures from Greece. Coins found on the ship by Cousteau date it to 70-67 B.C. They were produced by the Roman mint at Pergamum.
This was in the same general timeframe that Roman General Lucius Cornelius Sulla Felix mounted an expedition into Greece and Asia Minor in 87 BC. This was close to a decade before the sinking of the Antikythera wreck, according to the coin dating. It was long thought that the ship might have been bringing treasures back to Rome for Sulla.
Foley’s working hypothesis is that the ship may have been a large grain carrier. “The marble and bronze artworks would have been difficult to stabilize inside the hull and would have made it difficult to trim the vessel. It makes sense that a grain carrier might have been used and that grain sacks could have been used to pack around the statuary.”
Last year divers found a seven foot long bronze spear not associated with any of the recovered bronzes. This leads Foley to believe that other major bronzes may still be found. Earlier recoveries also included separated heads, arms and feet that may also be from buried bronzes.
Certainly the ship was important, but there is still doubt as to who ordered it to be packed with such fabulous treasures. “We know some of Sulla’s ship’s sank north of Antikythera – but we do not think this is one of his ships at this time, “ said Foley.
Foley will be very much hands on during the project. He will be one of the divers. His dive buddy is Gemma Smith, one of the technical divers. For Smith the dive will be especially satisfying, she is in the midst of a long career as a technical or scientific diver – despite being told early in her career that she would never qualify in this demanding field.
Hear the Brendan Foley interview on the next edition of The Archaeology Hour at :
The ‘early 18th century’ wreck recently discovered off the coast of North Carolina may not be what it appears to be. The wreck was discovered by Duke University biology researchers using Woods Hole Oceanographic Institute equipment to search for a lost instrument buoy. An early press release labeled it as early 18th century or possible Revolutionary period (a pretty wide span of time in any event). Examination of photographs from the site, beneath 6,000 feet of water on the continental shelf, tell an even more confusing story.
Bruce Terrell, chief archaeologist of NOAA’s Marine Heritage Program, told the Archaeology Hour yesterday: “We can clearly see what appears to be an octant in one photograph. Yet in other photographs we can see bottles that appear to have a form normally dated to the early decades of the 19th century. Obviously we have issues when it comes to dating the wreck.”
Terrell notes other questions raised by the evidence in the photographs. “There is very little rigging hardware to be seen. The hull structure of the vessel is gone completely but from the size of the ballast pile and the rigging hardware we can see it appears to be a very small ship; maybe 40 to 60 feet long.” This might indicate a Bermuda sloop or a small coasting schooner. Coasting vessels typically hugged the coastline and operated in shallow waters and riverine areas – this site is 180 miles out on the Blake Plateau.
The current information draws immediate comparisons with the wreck of another small coasting vessel found by sport divers in the Black River, South Carolina in 1971. This reporter spent a month working on the vessel in the 1980s and later on its reconstruction at the Georgetown Rice Museum where it is now on display. This vessel also appeared to be a small coasting schooner dated to the mid 18th century – and it also contained an octant.
Sir Isaac Newton in vented the quadrant in the 1690s, the octant appeared in the 1730s. Philadelphia inventor Thomas Godfrey and English mathematician John Hadley invented it simultaneously. The instrument enabled navigators to take sightings of both the sun and stars. It’s presence on the North Carolina wreck points to a mid-18th century or possibly earlier date for the wreck. The dating contradiction arises from bottles that appear in another photograph of the site. The shapes of the bottles appear to be typical of the very late 18th or early 19th century. “It is highly improbable that two wrecks are mixed here, “said Terrell. “This is not very likely in 6,000 feet of water.”
Clearly, more information is needed from the site. It is likely that more research will be done as the site adds important new information to North Carolina’s maritime history. “I am not sure what will happen next, “ says Terrell. “The Bureau of Ocean Energy Management is the Federal Agency responsible for the continental shelf and the decision on next steps will come from them. Hopefully an archaeologist will be appointed and a survey of the site will be completed.”
The Canadian military and Parks Canada today (one hour ago) revealed more details on their joint ‘ice dive’ next month on the wreck of the H.M.S.Erebus lost in the frozen wastes of the Canadian arctic in 1848. The initial announcement raised eyebrows when it was revealed that divers would be accessing the wreck while the pack ice over the site would be some seven feet thick.
Lt. Cdr. Stephan Julien spoke during a technical briefing for the press at 11:00am this morning. “Actually the pack ice provides better conditions for diving than open water. We will have a stable platform over the wreck and this will support special equipment that would normally require a much larger ship. We can also land ski-equipped aircraft on the ice, making it much easier to bring equipment in and out.”
Marc-Andre Bernier, the Parks Canada archaeologist in charge of the underwater archaeological aspects of the project also sees advantages on and under the ice. “Last September when the wreck was discovered we were limited by the weather and the diver air supply. At most divers using tanks would have an hour underwater—and then only during good weather. Storms prevented us from diving much of the time. By diving from an ice platform with diverse on umbilicals we can push our dive times to the limit. Also the bad weather meant that visibility was not good – we expect to get better visibility under the ice.”
According to Julien, dive teams will consist of an archaeologist and a military diver, both wearing helmeted suits with a tether, air umbilical and communications lines to the surface. Each diver will also have a back-up air bottle. They will enter through holes drilled in the seven foot ice cap to work on the wreck site. “It is actually all very safe, “ said Julien. “Getting back to the surface is a simple matter of following the tether back to the hole in the ice. “
The April Erebus project will be supported by a strong military presence including the Royal Canadian Air Force, Navy and Army. The US will also represented by an Air National Guard unit from Schenectady New York that will fly a ski equipped aircraft to the site. This kind of support for archaeological operations has occurred before—most notably on the Hamilton and Scourge project in Lake Ontario when two 1812 War period wrecks were examined. Even the Canadian Space Agency will be involved in providing security for the location of the wreck between project operations.
The entire project will be dedicated to developing a better understanding the Erebus site, says Marc-Andre Bernier. “We need to clear kelp from the wreck to improve visibility, then we will have three areas of interest to examine. The hull itself, the perimeter around the hull and the interior of the hull. With kelp removed we will be able to video and photo map the wreck. We will then examine the perimeter and conduct a text excavation in order to understand the nature of the soils and artifact content. Finally we will also use robotics and cameras on rods to look inside the hull and record any contents.”
The Parks Canada approach is very conservative one designed to fully understand the site before any major disturbance results from excavation and removal of timbers. “We do not plan to remove artifacts at this stage but a conservator will be on hand in the event anything of major importance has to be recovered,” said Bernier. More to come on the Archaeology Hour broadcast next month.
A full transcript of the Technical Briefing is provided by Parks Canada and is found at : http://wp.me/P5zmjV-24
The Canadian Government announced this morning that divers from Parks Canada will dive on the wreck of the recently discovered HMS Erebus in April, months ahead of the originally planned season to begin in July. The archaeologists will be supported by a military operation and will place divers under an ice cap over the wreck site that normally thaws for a few weeks after July each year.
The announcement states, “As part of an effort to unlock the secrets of Her Majesty’s Ship (HMS) Erebus, and to learn more about the fate of the Franklin expedition, Prime Minister Stephen Harper today announced that Parks Canada and Royal Canadian Navy divers will join together for Operation NUNALIVUT and conduct approximately 11 days of intense ice diving and underwater archaeology in April.”
There is no explanation for the advanced schedule but archeologists and historians worldwide welcome the new effort to study this important time capsule of early 19th century British exploration. The Erebus was lost in 1845 as its leader, Sir John Franklin sought to discover a north west passage from the Atlantic to the Pacific. Years of searching for the HMS Erebus and its companion ship the HMS Terror proved fruitless – until local legend pointed Park Canada archaeologists to a stretch of water where remote sensing equipment found the wreck.
The Archaeology Hour has an interview scheduled with lead archaeologist Marc-Andre Bernier on Sunday March 6th. Results will be reported immediately on the podcast’s blog and a full audio interview will appear on an upcoming edition of the enhanced podcast.
The announcement was made following at the Royal Ontario Museum where the “Erebus Medal” was presented to the Canadian Prime Minister Stephen Harper and his wife Laureen by John Geiger, CEO of The Royal Canadian Geographical Society, and Dr. Paul Ruest, President of The Royal Canadian Geographical Society. The award was made for contributions to and support for the 2014 Victoria Strait Expedition which led to the discovery of HMS Erebus.
The Prime Minister said. “Operation NUNALIVUT will showcase to the world the extraordinary abilities of Canadian Armed Forces ice divers and Parks Canada’s underwater archaeologists. I wish all participants the best as they embark on winter dives beneath the Arctic ice to learn more about HMS Erebus.”
The Prime Minister added that the award, “…recognizes our commitment to discovering one of our country’s greatest maritime mysteries. This discovery would not have been possible without the incredible efforts of the 2014 Victoria Strait Expedition made up of government, private and non-profit partners, including The Royal Canadian Geographical Society. I had the privilege to take part in the search last summer during my annual northern tour and was impressed by the professionalism and dedication of the searchers plumbing Canada’s frigid northern waters. ”
Archeologists are now working to remove small artifacts and map sections of the wreckage of the massive Confederate Ironclad CSS Georgia in Savannah Harbor prior to heavy lifting operations, expected to be completed by the end of this summer.
According to principal investigator Julie Morgan, an archaeologist with the Corps of Engineers, divers will be working in zero visibility conditions guided by an underwater acoustic positioning system and “a navigation web of transit lines that helps the diver move around the site.”
Even so diving on the wreck will not be easy or safe. The ship was scuttled by the Confederates as Sherman’s Union forces marched on Savannah on the Georgia coast at the mouth of the Savannah River. The wreckage sat on the edge of the ship channel and has been struck by vessels and dredgers over the years. The protective covering of the upper structure, the casemates, were constructed of railroad iron. Over the years since its sinking, the wreck has become a tangled mess of iron and accumulated debris brought downriver by swift currents.
“The current is abated by diving at slack tide only. All the divers have extensive experience working in black water environments and work only under the supervision of the Corps’ dive inspector. Safety is the Corps’ top priority. No more than two divers will be in the water at once for safety reasons,” said Morgan.
Once the divers have completed mapping, tagging and recovery operations, the US Navy will recover heavy materials. “The archaeological data recovery phase is expected to last until early summer 2015. Upon completion of that phase, the US Navy will set up on site to recover ordnance, large artifacts, the casemate sections and miscellaneous railroad iron using large mechanized machinery. A lift plan that details where cuts will be made, placement of straps and slings, and type of lift structure will be developed for each artifact and casemate section in the next couple of months, ” said Morgan.
According to Ms. Morgan, earlier surveys have been used to plan the operation now underway, “The Georgia has periodically been investigated since the late 1970s as funding became available. In 1979 a site assessment was conducted to determine the approximate site size and degree of integrity. Ordnance, small artifacts and two cannon were recovered in 1986 by Savannah District after the vessel was damaged by a dredge. In-situ investigations were conducted in 2003 to fully map the site and document conditions. Most recently multibeam and sidescan sonar surveys were completed in 2013 to document site changes since 2003. The results of those surveys provided the base map for the current data recovery effort. Also in 2013 a small casemate section was recovered during a test recovery exercise.”
It is now believed that nothing of the hull of the Georgia remains. The massive upper works may have crushed the wooden hull beneath it. This, coupled with teredo worm damage in the salty estuarine water, may have resulted in the complete disintegration of the hull. Morgan states: “Studies conducted in the 1970s thought that the hull was buried underneath sediments. In the 1980s, it was thought to be underneath one of the casemate sections. In both instances, it was never seen, only THOUGHT to be there.
“It was not until 2003 when Panamerican Consultants, Inc. conducted in-situ investigations and confirmed that there is no indication that any of the hull exists on the site. This was verified in 2013 by the multibeam and sidescan sonar. What happened to the hull? It is difficult to tell. It has been hypothesized that, if it were fairly intact, it may have been recovered during the salvage attempt in the late 1860s-1870s. Alternatively, it could have been badly damaged as a result of the salvage attempt and slowly deteriorated and/or was carried off the site by currents. Regardless, there are no remains of the hull. We hope that the edges of the casemate sections and any fasteners will provide clues as to what the hull was like.”
Given the presence of heavy silting and the resulting anaerobic environment, it may be possible that some heavy timbers, such as live oak frames, or the very bottom strakes of the hull, have survived. Whether or not this is so remains to be seen.
The Archaeology Hour asked Morgan about the disposition of any artifacts that might remain in the wreckage. According to Morgan there is no archival record of anything having been removed from the ironclad before it was scuttled. If the ship was abandoned in haste ahead of Sherman’s army, it may therefore contain artifacts.
“The archaeologists are currently recovering small artifacts from the wreck site. No personal items have been found. It is unlikely that we will find anything else due to the lack of sediments and the current,” added Morgan.
“The Corps has contracted with Conservation Research Laboratory at Texas A&M University to conserve the artifacts that will be retained for curation and exhibit. All of the large artifacts, i.e., cannons and power plant parts, as well as ordnance, casemate sections and other small artifacts with unique or diagnostic features will be conserved. There are no loan agreements in place at this time, but several museums of have expressed interest in exhibiting the artifacts. Final decisions regarding the disposition of the artifacts will be made by the US Navy as that agency is held accountable for CSS Georgia,” Morgan said. The entire property of the Confederate States of America, especially its fleets and weapons, became the property of the Federal Government following the defeat of the Confederacy.
The Archaeology Hour hopes to broadcast an audio interview with Ms. Morgan in the coming weeks, followed a video segment later in the year.
It was in the midst of the great age of British exploration. Sir John Franklin, aboard the H.M.S. Erebus and followed by the H.M.S. Terror, set out to find a north west passage from the Atlantic through the Arctic to the Pacific. The ships and their entire crews were never to be seen again.
Last Night Marc-Andre Bernier of Parks Canada and Douglas Stenton of the Government of Nunavut, Canada’s largest northern territory, fully revealed the details of the recent discovery of the Erebus. The ill-fated ship was recently found resting in waters of Queen Maud Gulf.
Many expeditions were sent to learn the fate of the two ships. Over the years a trickle of information revealed that the desperate crews struggled to survive in the hard Arctic environment on Beechey Island near the frozen ships. Some even attempted a desperate trek south.
Searchers found the Beechey Island Camp – and a few graves. Franklin, a note said, had died in 1847.
The misery of the ships prevailed into modern times with some details gleaned from Beechey Island and much more learned from local Inuits who preserved an oral tradition concerning the location of the ships. Using this information a consortium of groups led by the Government of Nunavut and Parks Canada found the Erebus in September of last year.
Last night’s presentation and Internet forum revealed more details of the discovery. The Erebus lies in 33 feet of water, its massive hull damaged by centuries of Arctic winters. The hulls of both ships would have been eventually crushed by the ice. Once beneath the surface, a five foot cap of surface ice would have demolished the superstructure.
According to Bernier, the wreck is in a state of excellent preservation, the dark, cold water serving to preserve timbers and organics. While the exterior of the hull has been surveyed, divers have yet to enter the wreck–filled with everything needed to help the crews survive the harsh conditions. Unfortunately cans of tinned food contained high levels of lead and the water purification system may also have added to the lead poisoning. Many of the men appear to have died from scurvy, tuberculosis and lead poisoning.
The next field season on the wreck –and the continuing search for the H.M.S. Terror–will begin in July when the winter ice over the site begins to thaw. The Archaeology Hour will bring you an interview with Marc-Andre Bernier and with Doug Stenton during its broadcast after the Pilot Show due to air in March.