This BBC World Service podcast features an interview with Professor Jon Adams.

The post On the Black Sea: Diving Deep appeared first on Shipwrecks and Submerged Worlds.

The Nissia Shipwreck is from the Ottoman period. It is located on the southeast coast of Cyprus. The shipwreck has been known about by the local diving community ever since the 1980s.

The MARELab of the University of Cyprus, in collaboration with the Department of Antiquities of Cyprus, undertook a research project on the site, for a number of reasons:

• the wreck has a high percentage of wooden hull preservation
• the wreck is exposed to natural deterioration processes
• the wreck is subject to looting and destruction.

The fieldwork season took place in September 2014. It consisted of an excavation of two trenches and the recovery of a cannon and many other finds. Students were trained in in situ preservation methods of organic material, and there was also the opportunity for public archaeology engagement with the local community. In all, this project brought together the different aspects of maritime archaeology in practice, including  3D digital recording methods.

Further reading about the Nissia shipwreck

• Dr Stella Demesticha – New underwater archaeological investigation of a medieval shipwreck at Paralimni, Cyprus

• Rare shipwreck excavated off Paralimni

• Paralimni-Nissia shipwreck

• Nissia Shipwreck

The post Nissia: My favourite maritime archaeology fieldwork experience appeared first on Shipwrecks and Submerged Worlds.

Gribshunden, also known as Gripshunden, and Griffone, was a large Danish warship employed in the fleet of King John I (Danish: Kong Hans) who reigned in Denmark from 1481 to 1513. Gribshunden appears in some of the earliest Danish fleet records and is amongst the first Danish vessels to be described as a carvel. The vessel, which seems to have served as the king’s flagship, sank in 1495 on an important diplomatic voyage bound for Kalmar, Sweden, where King John was to meet with Regent Stent Sture the Elder and the Swedish council, probably to discuss details regarding the Kalmar Union (Barfod 1990: 80-81). Unfortunately, John I arrived at Kalmar without his mighty Gribshunden

While anchored at the natural harbour off Ronneby on his way to Kalmar, Gribshunden suddenly caught fire and sank, killing several of the men aboard (Barfod 1990: 80-81, 203). By chance, John I was not aboard Gribshunden at this time himself but witnessed the flames engulf his flagship from a distance from within a ship’s boat. The wreck and its location ultimately sank into oblivion.

The wreck was rediscovered by local sports divers in the 1970s but it wasn’t until 2001, when strange artefacts had been uncovered on the site, that archaeologists were made aware of its existence and began to investigate it. The wreck, which was unidentified at the time, was found to be rather disjointed but otherwise well-preserved. A wooden sample was promptly taken from one of the timbers, revealing that the ship had been constructed of oak wood felled in the winter of AD 1482-83.

The Museum of Kalmar County subsequently entered into collaboration with the local dive club to undertake further investigations of the wreck. Several extraordinary artefacts, which had been preserved in the muddy sediment, were salvaged from the site, including nine gun carriages for breech-loading iron guns, mail armour fragments and a capstan (now exhibited in Blekinge Museum).

The collaborative fieldwork efforts, moreover, yielded valuable information about the ship construction itself. Most importantly, it was quickly observed that ship had been built by use of carvel planking, i.e. the hull planks had been laid flushed and fastened edge-to-edge. It is thus the oldest carvel built shipwreck discovered in Nordic waters, standing in contrast to the traditional Nordic clinker built watercraft (in which the hull planks overlap). The technological significance of its construction prompted further investigations into the wreck, which, through careful analysis of ordnance pieces and by the process of elimination, resulted in the tentative identification of the wreck as the Gribshunden.

Although the archaeological investigations are only in their earliest stages, the wreck has already been subject to much mass media attention and research interests, particularly as a consequence of the salvaging of the wreck’s figurehead which was undertaken in the summer of 2015. The figurehead, a menacing dog-like monster, is exceptionally unique, being the only one of its kind in the world.

Much has already been gained from the few investigations of the site and several sets of data collections are currently being processed and treated. With this new knowledge, it will be possible to return to the wreck site in the near future to undertake a larger fieldwork project. Future studies of the site will doubtlessly make significant contributions to knowledge of Late Medieval life, especially in relation to seafaring and naval warfare.

Further information about Gribshunden:

Last year, Rolf wrote a more detailed blogpost about the Gribshunden before the figurehead was salvaged: http://combatarchaeology.org/gribshunden-significance-and-preliminary-investigations/

The figurehead is now being conserved at the National Museum of Denmark, but will be returned to Blekinge Museum witin 2-3 years after having been conserved by PEG and freeze-dried.

The Gribshunden research project is a work in progress, so here may be other exciting developments in future.

The post The Loss of the Gribshunden (1495) and Preliminary Archaeological Investigations appeared first on Shipwrecks and Submerged Worlds.

There will be links to articles at relevant points during the course, but you may wish to visit the journal now and read some of them.

The articles are a good indicator of the kind of content that is usually available in the International Journal of Nautical Archaeology. It covers all aspects of nautical archaeological research. The journal’s themes include seas, ancient ships, harbours, cargoes, and the sailors of the past. IJNA also covers the latest explorations, discoveries and technical innovations in maritime archaeology.  Information on well-preserved artefacts discovered through underwater archaeology is especially valuable since these materials are seldom, if ever, found in excavations on land. If you enjoy this special edition of the journal, you may wish to subscribe, or find out whether it is available in any of your local libraries.

When will the virtual issue be live?

• October 1st to November 28th 2014
• January 21st to April 1st 2016

 Which articles appear in the virtual issue?

• Course Introduction
  Julian Whitewright
• Drowned and deserted: a submerged prehistoric landscape in the Solent, England.
  Garry Momber
• Locating the Harbour: Myos Hormos/Quseir al-Qadim: A Roman and Islamic Port on the Red Sea Cost of Egypt.
  Lucy Blue
• Mapping of the Buried Yarmouth Roads Wreck, Isle of Wight, UK, using a Chirp Sub-Bottom Profiler.
  Ruth M.K. Plets, Justin K. Dix, Angus I. Best
• The Uluburun shipwreck: an overview.
  Cemal Pulak
• The Mediterranean lateen sail of late-antiquity.
  Julian Whitewright
• From Rescue to Research: Medieval Ship Finds in St Peter Port, Guernsey.
  Jonathan Adams, Jennifer Black
• The Sydney Cove shipwreck project.
  Michael Nash
• Questions for Maritime Archaeological Heritage Management.
  Jesse Ransley

You can also find information about how to subscribe to this journal on the virtual issue page.

The post Virtual issue of International Journal of Nautical Archaeology appeared first on Shipwrecks and Submerged Worlds.

Tybrind Vig was the first submerged settlement excavated in Denmark between 1977 and 1987. The settlement is located 300m from the shore and 3m below the surface. Divers excavated well-preserved artefacts from the Ertebølle Culture. A large kitchen midden was also found.

Transcript

Hi! I’m Dr Fraser Sturt and, true to form, I’m not going pick a wreck, but I’m actually going to pick a site – a submerged site – and my favourite submerged site is Tybrind Vig in Denmark. And the reason why it’s my favourite site is the fact that it gave us a huge amount to understanding Mesolithic archaeology through its decorated paddles and log boats. It also demonstrated what submerged worlds can be in an archaeological term. But there’s more than this.

One of the really exciting things about Tybrind Vig is it was actually discovered through a public competition. The magazine ‘Hjemmet’ in 1952 I think it was made a public competition to find earliest submerged site in the waters around Denmark… and this is just when SCUBA was coming in. And so there was a huge movement by people to go out into the waters and look for archaeology and they found truly significant sites which have changed our understanding and how we think of the archaeological record today.

So, Tybrind Vig is an amazing archaeological site. It was a pioneering site in terms of the excavation of submerged prehistoric sites, but it was also a really good example of citizen science. This was found by people interested in their heritage in their waters. So Tybrind Vig, for me, is amazing.

We cover Tybrind Vig in more detail in Week 4 of Shipwrecks and Submerged Worlds and Helen has also posted a video answering questions that were posed about this topic.

The post Tybrind Vig – submerged site appeared first on Shipwrecks and Submerged Worlds.

We are very happy to announce a  fully funded PhD studentship for UK/EU students as part of the Marine and Maritime Futures Leverhulme Trust Doctoral Scholarship scheme at the University of Southampton.   If you have an excellent academic track record, are looking for a stimulating and challenging transdisciplinary project in a world class research environment please read on for further details on how to apply …

Project Title:  Mapping potential wreck sites with seafloor data – scientific, social and legal considerations

Supervisors:  Dr Fraser Sturt, Dr Justin Dix and Prof Michael Tsimplis

Rationale:

Thousands of potentially polluting WWII shipwrecks litter the ocean floor. The pollutants carried on board may include oil, ammunition or other toxic materials. Leakage of pollutants from such wrecks may take place continuously or catastrophically, and the risk of such an event increases with time. The location of several of these wrecks is known and monitored by national administrations, but by far the majority sank without exact information on their location. The UK Ministry of Defence is presently undertaking a project trying to identify the location of such WW II wrecks, on the basis of historic information. In addition, hindcasts of oceanic circulation and storm surges extending before WWII can be used to enhance our understanding of the nature of the wrecking. Finally, there are now multiple publically available (UKHO, CCO, MCA) and commercial sources of swath bathymetry from the UK shelf, against which this archive derived wreck record can be compared. In many cases the decimetre resolution of the swath data will also facilitate full mapping of the identified sites.

This PhD will combine historical records with the prevailing weather and oceanographic conditions at the time of sinking in order to define areas where the wrecks may be. These zones will be cross- referenced against the extant swath bathymetry targets to facilitate an assessment of the environmental risk present in the various areas of the UK Continental Shelf. Key to this project is the co-consideration of legal responsibilities for identifying and locating such wrecks and ensure they are not polluting the seas. Issues to explore include: Where the wrecks were at the time of sinking beyond jurisdiction of the state but now rest within the UK shelf or EEZ does responsibility rest with the UK; Do the flag state of ships have responsibility under international law?

Methodology:

The student will undertake a wide range of activities, to include assessment of the historic record. These data sources will be cross- referenced with the HER and NMR records from Historic England and the UKHO wreck record as well as the extensive grey literature that exists. Key events will be cross-referenced against firstly observed and modelled meteorological and oceanographic data to supplement the written records of wrecking. GIS based spatial analysis will be fundamental to the identification of targets areas for analysis of the in situ data. Finally, digital analysis of swath bathymetry data (and any other geological data available) from target zones will be undertaken to identify the location, state of the wreck and local sedimentary environment. Finally, the legal implications of the spread of sites will be considered with respect to both national and international law.

Training:

The project will entail a transdisciplinary approach which will require a good command of legal knowledge and skills as well as a contemporary real-world focus in marine and social sciences and inter disciplinary awareness for tackling the challenges of MSP framework.

The student will benefit from PGT and PGR taught modules in all three aspects of this transdisciplinary project. It will be essential in the first year that the student undertakes modules in high resolution marine geophysics, marine geoarchaeology, maritime law and maritime archaeology. In addition, to these taught modules there will be extensive opportunities for students to expand their multi-disciplinary outlook through interactions with a wide network of academic, research and industrial/government / policy such as those offered by the Centre of Maritime Archaeology, the Geology & Geophysics Research Group and the broader LTDS cohort. The researcher will attend lectures, symposia, seminar programs and conferences so as to be aware of the latest challenges relevant to the project.

Background reading:

1. National Oceanic and Atmospheric Administation. 2013. Risk Assessment for Potentially Polluting Wrecks in U.S. Waters. National Oceanic and Atmospheric Administation, Silver Spring, MD. 127 pp

2. Astley, A., Dix, J.K., Thompson, C.E.L. and Sturt, F. 2014. A seventeen year, near-annual, bathymetric time-series of a marine structure (SS Richard Montgomery). In, Cheng, L., Draper, S. and An, H.(eds.) Scour and Erosion: Proceedings of the 7th International Conference on Scour and Erosion. International Conference on Scour and Erosion, Taylor & Francis, 715-724.

How to apply:

To apply for this PhD candidates should first contact Dr Fraser Sturt to discuss the project.  Following this candidates should complete the online form found here: http://www.southampton.ac.uk/courses/how-to-apply/postgraduate-applications.page, selecting the options for Faculty of Humanities, Doctor of Philosophy, Mphil/PhD Archaeology (Full Time).

Deadline for applications:  5th February 2016

Interview Date:  2nd March 2016

For further information contact: Dr Fraser Sturt, Dr Justin Dix and Prof Michael Tsimplis

The post Funded PhD: Mapping potential wreck sites with seafloor data – scientific, social and legal considerations appeared first on Shipwrecks and Submerged Worlds.

The training at Ulster University was for three days. One day of familiarising with the equipment and the survey area, a day of surveying, and a day of data processing. We were quite lucky with good weather, surprisingly for Ireland. Kieran had chosen the survey area for the training at Lough Beg, Northern Ireland, where a log boat is supposedly located in the vicinity of a crannog in the lake. We surveyed around the crannog following or trying to follow pre-determined survey lines in as much as the wind, current, and depth of the lake allowed. Since the purpose of the survey was to collect side scan sonar data, it was necessary to reduce the noise from the motor. We ended up surveying on a speed of 2-3 knots, realising that the data we were collecting was not the best, but it was good enough for the training exercise. The shallow parts of the lake were quite difficult to survey. We did get to see many posts showing up on the display unit and lots of vegetation which was also getting stuck to the motor’s propeller.

The survey was followed by a day of data processing using ReefMaster and SonarTRX. The former software allows to quickly review the data, locate anomalies, and generate a bathymetric map. The SonarTRX on the other hand is used to process the data by editing the lines of surveys one by one in order to get the best results from the collected data. It then permits to generate a mosaic from the survey lines which can be imported into GIS (Geographic Information Systems). Working through the software took almost a whole day, familiarising with the tools, editing, and exporting capabilities. We tend to assume that once the data is collected, the hard part is over, but in fact processing the data is much more demanding, it is a science and an art (quoting both Kieran Westley and Rorey Quinn). The nice mosaics and images we see often in marine geophysics are the result of long hours of computational work by dedicated individuals.

Finally, this training was concluded with a visit to the Giant’s Causeway, a walk along the incredible Irish coastline, a visit to a local pub, and good times with good people, all thanks to the Centre for Maritime Archaeology at the University of Ulster, particularly Dr Kieran Westley and Dr Colin Breen, and to the Honor Frost Foundation for their support.

The post A day on water and a day in the lab appeared first on Shipwrecks and Submerged Worlds.

This week several members of the course team met to answer some of the key questions that have come out of the course this week.

Some of the questions that educators tackle include:

• 1.9. Salim Al Hajri: How do these names vary through time and space? I mean from place to place (Europe to Middle East to China) and from the Romans to nowadays?
• Michael Smith: Maritime archaeology is the study of man-made objects, cultures, etc., in and around the sea. So an aircraft in the water falls under the purview of the maritime archaeologist, but if the same plane crashed in the jungle, it would be a job for simply an archaeologist. (Should that be “terrestrial archaeologist”? Are there any “aeronautical archaeologists”?
• 1.12 Hans van de Bunte: It seems communities in Southeast Asia and Borneo have not been “calibrated” (enough) to fit any timeline?
• 1.15 Debbie Wareham: I was wondering about the cognitive ability required to build a boat?
• 1.12 Jackie Hart: Can you advise if the system of floating reed islands inhabited by the Marsh Arabs have been around for any known period of time.
• 1.9 Susan Brett: The Roman ships, mentioned in the Portus MOOC were shell-first built. Presumably the interior could be fitted according to its use eg. carrying marble columns would need different space to carrying wine amphorae. Would this be more suitable for navigable rivers and the Mediterranean in summer? But the frame-first construction would give different lines to the ships and different sailing qualities. Could bigger ships be built? Would it be stronger eg. Atlantic use? Would it be more repairable – so if the outer planking was damaged the hole could be repaired without the ship collapsing? Could the frame anchor more spread of sails and therefore allow greater speed? Was there a change in technique in a particular period?
• Why did people start to explore other parts in the first place? Hunger? Curiosity?

May 2015 Q&A downloadable transcript

Transcript

FRASER: Hi! This is a new part of the MOOC for us, in that we realise this is only a four-week course and, as such, we won’t have answered all of your questions or interests within the material we can put online. As such, we’ve been looking through the comments and we’ll do this each week, and we’re going to try and answer some of the key questions that’ve been coming up. Now some of these are going to be quite tricky and we can’t predict what they’re going to be, but we’ll do our best. And in that light, I’m going to hand over to Julian for the first question.

JULIAN: OK, thanks, Fraser. So this is in relation to step 1.9 from Salim and I’m going to ask this to Thom, which is “How do the names of boats and the parts of boats vary through time and space and from place to place and maybe from Europe to the Middle East to China, from the Roman period to nowadays?” So, quite a big sweep of time and space.

THOMAS: I think the short answer to that, Julian, is that I simply don’t know… but I can talk a little bit about how the names changed from language to language nowadays, and I can say that, for example, the word for keel is the same as it is in English, as it is in Dutch, as it is in French, as it is in German. But there are also significant differences, so the word for ‘futtock’ in Dutch would be ‘oplange’, in German would be ‘auflange’, in French would be ‘allangee’ – it all means futtock in English. I don’t know what it would be in Spanish, for example?

RODRIGO: Corlena.

THOMAS: Corlena, yeah. So there are significant differences today. And in the northwest Europe in the medieval period people did speak some sort of common dialect amongst each other, so it is reasonable to assume that especially seafaring terms would have been commonly understandable, but beyond that I think it would be a very interesting research topic for a historian, to really expand that timescale and speciality of that question.

FRASER: And now it’s Thom with one for me, I think.

THOMAS: Yes…

FRASER: No! I’m wrong!

CRYSTAL: That’s for you to read to me!

FRASER: Ah – ok! So, ok, in which case, you can see we’re very organised! So, Maritime Archaeology – this is from Michael Smith – which is, “Maritime archaeology is the study of man-made objects, cultures, et cetera in and around the sea. So an aircraft in the water falls under the purview of the maritime archaeologist, but if the same plane crashed in the jungle, it would be a job for simply an archaeologist.” and Mike quite rightly asks “Should that just be a ‘terrestrial archaeologist’? Are there any ‘aeronautical archaeologists’?” Crystal, do you fancy having a go at that?

CRYSTAL: Yes, but I’m not going to answer about the aeronautical archaeologists, because I think I posted a link for Michael to see a page about it. But what I can say about mostly is in fact the environment where archaeologists work, so if you find an object on land, or in the sea, it entails that there are different archaeologists and different specialists who will be looking at that. But at the same time we have many maritime objects on land as well, so it’s not really about differentiating between terrestrial archaeologists and maritime archaeologists, but just considering all archaeology as one and starting from that seeing what specialists need to look at the actual artefacts, we can. Yeah?

FRASER: Fair enough, fair enough.

THOMAS: OK. I think now it’s my turn… So, Fraser, this question’s from Hans van de Bunte, from step 1.12 and he asks “It seems that communities in Southeast Asia, Borneo, have not been calibrated enough to fit any timeline?”

FRASER: And this is a very fair comment and a number of you may be interested that the first group of people to have been through the MOOC have shaped what’s on the timeline and this is something we would really like to address. So, absolutely there are gaps in our timelines, in terms of how different terminologies and what we might call ‘dated phases’ link up. So, for example, you’re absolutely right Southeast Asia is poorly represented on our timeline and this isn’t so much to do with lack of calibration. There is very good work going on there, although I would say in a lot of areas we do need more in the way of accurately dated sites to help us link things up and move beyond broad regions.

Similarly, in North America there is a really detailed archaeological record, which has had considerable study, including a variety of terminologies that we haven’t included on the MOOC, so far. Now our idea is that this is a live project which is going to keep on going and we’d like to see this build up and we’d like to use you, as a community of people involved in this to add in that extra data, because it’s quite a big task to do a history of the globe through all time, but it’s something we’d quite like to do over the lifetime of this MOOC, so you’re absolutely right in that we haven’t included it. There is data that could be included and we’d like people to help us add it in. OK.

RODRIGO: OK, so I’m going to ask Crystal another question. This is from Jackie Hart, step 1.12. So, “Can you advise if the system of floating reed islands, inhabited by Marsh Arabs, have been around for any known period of time?”

CRYSTAL: Well, it’s quite difficult really to link certain cultures, certain practices, back in time, but there are definitely similarities, so the Marsh Arabs and the floating reed islands sometimes are linked to the Ancient Sumerians, but this really requires a certain historical research and of course like the practices of floating, of people living on floating islands and so on, it goes back so much in time, but in order to really know the link between different phases of time that requires research and it’s definitely something for anyone who’s interested to take on.

FRASER: Absolutely, I’ll just say that floating islands are sort of a technological or adaptive capacity of humanity and something we see across the globe from South America, Lake Titicaca, through to the lochs of Scotland, we have different forms of floating islands, so this is a strategy that people have adopted at various points in time and so there is quite a complex story to tell about living on the water as well as moving over it.

CRYSTAL: I have a question, but I’m not sure for whom… [laughter] So, it’s by Debbie Wareham, she’s asking, “I was wondering about the cognitive ability required to built a boat?” So, Julian, I think… [Laughter]

JULIAN: It is a brilliant question and I think it’s one that we are struggling, not struggling with as a discipline, but it’s the thing we want to understand, isn’t it? The thought processes that go through people’s heads when they’re building, I don’t know, a dugout canoe or they’re building an enormous ship and how they design those vessels, create the parts that go between them. I think we’re quite good at understanding how the bits fit together, but maybe less good at understanding how people are coming up with the shapes and the rationales and things like that for designing them. Which is a longwinded way of saying, I don’t know the answer…

RODRIGO: Well, I’ll probably add to like getting to acquire all the materials as well takes a lot of effort to think about because you have to pick out a specific log, have a different type of wood, the type of tools you are using, so it’s a very complex process, not only about building it, but you’re thinking it’s for a reason and it has objectives. So you have to think of all the steps before thinking about a simple design.

JULIAN: And I don’t know how it fits in with our understanding of other varieties of modern humans…

FRASER: Exactly, that’s the really tricky part of this. And it is a really interesting question because of that in that, as you’ll know in the steps for this week, we’ve said that the earliest evidence for seafaring or sea-going certainly goes back around 800 000 years and we think it’s probably via raft so maybe even natural rafts are being used.

The question asks about a boat which is obviously about displacement rather than buoyancy and that may be a different cognitive capacity to work out that this is a means of floating and directing yourself over the water. A tricky part archaeologically is that the archaeological record for boats really begins in the Mesolithic in terms of physical remains of logboats largely from this period and we can hypothesise about the sorts of boats, which may exist, such as skin boats for earlier periods. The difficulty is extending that hypothesis beyond our own species effectively, beyond anatomically modern humans. We don’t know and it would be very hard to find evidence for, but it is interesting to consider if any of our precursors, any of our ancestors beyond that sort of lineage really have that capability. So, to those interested in the Palaeolithic that’s going to be a big thing because that’s a real cognitive shift.

THOMAS: But also in the late Middle Ages, where we have the transition from clinker to carvel, people have really hammered home the cognitive gap that had to be bridged between clinker and carvel. Well, this is something that more lately and, I think, especially within this department, people have started to question that the cognitive abilities for building clinker and the transition into carvel would have actually been much closer together, so we’re actually starting to bridge that gap now.

JULIAN: I think those themes that Thom mentioned build on the next question from Susan Brett about different types of construction for Roman ships and about frame-first ships and shell-first ships and whether some could have allowed bigger ships to be built and I think the work being done here is illustrating that the sequence that you build the ship in doesn’t necessarily limit the size of the vessel or the purpose of the vessel, I think we’d probably agree on that, wouldn’t we?

THOMAS: I think so, yeah.

JULIAN: But go back to that question in terms of the Roman ships and the Portus MOOC, we’re going to look at those a little bit more next week, there’s a couple of steps dedicated on Ancient Mediterranean ships and boats. And the question asked about the interior of these being fitted out for carrying marble columns or wine amphora and that’s absolutely right, I think things would have been fitted out according to their purpose. But also the shapes of boats are different depending on what they’re going to do, so a vessel to operate in a shallow river is going to have a big, flat bottom on it, maybe, something that’s being used for harbour dredging is going to look very different to something that’s carrying a big obelisk from Egypt to Rome. So it’s important not to confuse a building tradition with all the hull-shapes being exactly the same size and that’s something we see in the Medieval period as well, isn’t it?

THOMAS: Yeah, there’s some discussion as well as to the packaging and how that influences ships being built and ship performance ,for example, the transport of grain across the northern Baltic Sea. In the Middle Ages, would they have it in bulk or would they have it in sacks, which is if you’re having to transport it in bulk, then the grain, or salt for that matter, will start acting like a liquid within your ships. And once your ship starts heeling in the wind, your salt will shift and your ship will essentially heel over. So you would have to either stamp it down very hard so that it acts as a solid within your ship, or you would actually have to package it in sacks and people have now started looking at actual packaging materials in the Middle Ages and how that worked.

FRASER: Brilliant! And that brings us on to the final question which is in some ways a classic and a really difficult one as well, so we’re going to all think about this, which is why did people start to explore other parts of the world in the first place? Is it hunger? Is it curiosity? So, basically, why? So any thoughts on the why? And this is a big question in archaeology.

RODRIGO: Yeah, well, I definitely think that depends on the context and where, like what type of culture you’re studying and you have to look at the landscape as well so if people are running out resources they’ll have to look for other resources in different parts and then they’ll start exploring in a sense, but there’s also human curiosity which you can’t rule out just simply because people are very curious in general and they do very, very adventurous stuff. They think, okay let’s take a boat let’s see how far I can go and see if I come back.

JULIAN: Particularly if they can see things on the horizon. [Yeah]. I’m just going to go over there.

RODRIGO: People, they were very skilful as well so we have to think in different terms than what we would do nowadays, you know, because if you see, if you’re looking out at the sea and you say it looks dangerous, maybe somebody that would be living on the coast would say, well, it’s not really dangerous. I can really go out, and come back without any troubles, so it depends on the context.

THOMAS: Plus a voyage like that might build reputation and prestige of that might elevate him in the regards of the community that he lives in. I think in the Bronze Age there’s some discussion about that.

FRASER: Yeah, absolutely, and there’s a lot about knowledge and power which comes in with movement which we can’t see really being discussed from what we’d see as potentially the late Neolithic onwards really and that’s because that’s when we can begin to see these things happen in the archaeological record. And Rodrigo’s absolutely right, this means some really interesting things written about this in different periods with different drivers really, so if we look at the really early expansions into sort of what might be seen as almost pristine environments one of the big things people have picked out on is ecological homogeneity in that it’s a lot easier to know what you find in a coastal strip and to follow that strip along the coastline and move quite rapidly than it is to traverse inland where your ecologies change really quickly and you’d have to adapt your technologies and work out what you can eat and how to live and so in some ways that expansion may be sort of accelerated along coastal fringes and then slow down within interior spaces. So, the map of the world becomes quite different when you begin to think of it like that. There’s a very good book by James Steel called ‘The Colonisation of Unfamiliar Landscapes’, which takes on some of these ideas which is worth reading, if we’re allowed to say a single book, like that.

Okay, well, in which case we know this has been very informal and probably full of all sorts of errors, but we’re deliberately keeping this as a single take and light approach to answering these questions. And on that note we thought we should really highlight what has been the most commented on or used link that’s been provided and this is thanks to Felice Goldfinch who shared ‘The sound of theory’, which I hadn’t seen before by Shanks and Garfinkel, which is well worth looking at. If you want to look at this go to step 1.11, which is the theory step and you can then see it on there.

So we hope we’ve helped by answering some of your questions. Do feel free to pose them directly through the comments boards as we go through the additional weeks, and we’ll try and pick up on them and make sure that we answer them. So, thank you very much.

The post Answering your questions on Week 1 appeared first on Shipwrecks and Submerged Worlds.

The bow of the site has been scoured out, revealing the gun deck and various artefacts.

For more information about the site, please visit: http://www.maritimearchaeologytrust.org/invincible

The post HMS Invincible dive appeared first on Shipwrecks and Submerged Worlds.

Core samples can be gathered from all over the world. Here, core samples are being taken from an intertidal site at Somerset.

They can be removed from the ground using a variety of techniques; either hand powered or mechanical in nature. We can take them from dry land, inter-tidal and underwater contexts.

Once removed from the site they are taken to the BOSCORF (British Ocean Sediment Core Research Facility) Core store at the National Oceanographic Centre in Southampton. Here they are split in half. One section becomes an archive to be stored for later researchers, the other the ‘working’ section. Once split the core can be recorded; noting the change in sediments, colour and inclusions.

This core is over 10,000 years old and is from the southern North Sea and shows an old riverbed at the base, covered by a wetland system and then a slow shift through the development of an estuary before finally becoming fully inundated by the sea.

It is also possible to use more advanced technology to examine the cores. At the university of Southampton we have one of the few ITRAX machines that is able to take extremely high-resolution images, as well as x-rays and xRF data. The x-rays allow us to see variation in the density of core material, and to pick out microstructures not visible to the eye. The xRF data gives detail on the variation of chemical elements in the core.

Once examined, the cores are stored in a temperature control storage area. As you can see we have thousands of cores, from all over the world giving us a wealth of crucial archaeological data.

If you enjoyed this, you might like this article about how core samples can be used.

The post Life of a core sample appeared first on Shipwrecks and Submerged Worlds.