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Even More Experiments in Intensive Pedestrian Survey
Even more guest-posting brilliance from our esteemed guest blogger, David Pettegrew, the co-director the Pyla-Koutsopetria Archaeological Project and the 2010 Cyprus Research Fund speaker. Be sure to check out his posts on Tuesday, Wednesday, Thursday, and yesterday.
Over the last few days (here and here), we have been discussing the results of an experiment we carried out 2010 in order to assess the relationship between the number of artifacts we see in pedestrian survey and the number actually on the ground. You can read about the first two phases of these experiments here and here.
Today we consider the kinds of artifacts that we observed during total collection and the sorts of material that made up the surface matrix. When we set up the experiment, we consciously decided not to collect artifacts via the chronotype sample as we normally do in our pedestrian resurvey. What crueler thing could one do to the project ceramicist than overwhelm him with 1,000+ surface artifacts? (After all, the logic of sampling is to manage human resources more effectively.) Because we didn’t identify the artifacts from the total collection grid according to chronotype as we did for the survey units, we limited the kinds of comparisons we can make between the pedestrian survey sample and the total collection.
Even still, there were still some things we could do to give us a sense of the kinds of material on the ground, especially their fabric and functional attributes. How much of the surface assemblage of a high-density unit at Koutsopetria consists of cooking ware, coarse wares, coarse wares with surface treatment like combing, and table wares (slipped or unslipped)?
To address this question in part, we sorted all pottery from each total collection unit into three basic fabric classes: semi-fine and fine ware (whether decorated or not), cooking ware, and medium-coarse and coarse wares (including amphora sherds). The results below show the count of each of the categories in each of the total collection grid squares and give in parentheses the percentage of that fabric group in terms of the total number of potsherds in the unit.
Fine ware constitutes 7.6% to 15.4% of the number of potsherds in each subunit; cooking ware only 1.7% to 5.4% of the total number of potsherds; and coarse wares consistently 80.2-87.2% of the overall assemblage. Unsurprisingly, for a predominantly Late Roman assemblage, the great majority of the sherds are coarse, a small percentage are fine, and tiny percentage are cooking. The disparity between coarse wares, on the one hand, and fine and cooking wares on the other would have been even greater had we compared weight instead of count, since most fine and cooking ware sherds are thin-walled and small.
We also counted the “parts” of the vessel according to the standard ceramicist categories of rims, bases, handles, shoulders / necks, and body sherds. Rims represented 2.9-7% of the total sherd count, bases less than 2.2%, handles from 2.2 to 5.3%, neck and shoulders typically less than a percent. Body sherds typically represent over 90% of the surface assemblage.
More Experiments in Intensive Pedestrian Survey
More guest-posting brilliance from our esteemed guest blogger, David Pettegrew, the co-director the Pyla-Koutsopetria Archaeological Project and the 2010 Cyprus Research Fund speaker. Be sure to check out his posts on Tuesday, Wednesday, and Thursday.
Last Thursday, we introduced the survey experiment that PKAP conducted in June 2010 to assess the relationship between the number of artifacts that we see when we walk across a survey unit and the number of artifacts actually on the ground. In other words, we wanted to assess how effective our survey methods are in actually assessing what was on the ground. On Thursday, we compared the artifact densities detected by the project’s untrained student fieldwalkers to those counted by trained senior staff members. Today we will discuss the second phase in our 2010 experiment, an assessment of the total population of all artifacts on the surface of select subunits. This part of the experiment was designed to give us a total count of all surface artifacts that can be compared with the artifact counts reported in yesterday’s discussion.
We began by selecting four 10 x 10 m subunits based on the densities of the 10 x 10 m artifact densities counted by the experienced senior staff members. As with past experiments (published in the RDAC 2007), we selected our 4 subunits to represent the range of density variation: the lowest density quartile (G15), highest density quartile (G9), and two middle quartiles (G1 and G6). Each total subunit was 10 x 10 m, representing 1/16 (6.25%) of the 1,600 sq m survey unit.
To vacuum a high-density unit, you really have to spend a lot of time picking individual artifacts off the ground. For each of our units, students Andrew, Zane, Valerie, and Luke, and I walked very slowly in adjacent passes across each selected square gathering together in 1 or 2 corners of the unit all the artifacts present. An initial pass was never enough for we observed how many artifacts we missed initially. Usually two additional passes were necessary to vacuum the surface completely, and each pass involved either crawling on hands and knees, or bending so that you had a closer view of the ground. I have to admit that my back and neck got sore after a while of this.
The results of this “total collection”, shown below, are interesting to compare with the “pedestrian survey counts” discussed yesterday. You have to keep in mind with the comparison that the pedestrian counts represent a 20% sample of each subunit while the total collection counts represent a 100% sample. You have to multiply the pedestrian count by a factor of 5 to estimate the “total putative count” (i.e., an estimation of what the total count would be for 100% of the unit) for the pedestrian-walked unit.
The first outlined set of grid units below shows the total counts from each of the total collection units.
The second set of grids compares the total collection counts with the pedestrian survey counts in parentheses (multiplied by 5 to create the 100% putative sample).
The third shows the factor difference between these two types of counts.
Here is where it gets even more interesting. We can estimate that the 940 artifacts experienced fieldwalkers counted through pedestrian survey across the entire unit (i.e., the pedestrian counts from 4 walker swaths) would produce a putative pedestrian survey count (factoring for the 20% sample) of 4,700 artifacts. In other words, had we walked 100% of the unit, we would have counted about 4,700 artifacts. Now, if total collection (vacuuming) produces on average 2.96 times the number of artifacts as pedestrian survey, we can estimate that there were 13,212 artifacts actually on the surface of the ground. To provide some perspective, we collected and brought back to the museum 8,788 total artifacts from the 252 grid squares of Koutsopetria and 19,657 total artifacts from our survey of the entire Pyla-Koutsopetria area. A single survey unit at Koutsopetria totally collected would produce 1.5 times the number of artifacts sampled from all 252 grid squares at Koutsopetria and .67 of the total artifacts sampled across the entire Pyla area. If we were to apply the same multipliers to all 252 forty x forty meter grid squares, i.e., the main part of the site of Koutsopetria, the total artifact count of 19,182 would produce a putative total count of 95,910. Our estimated total population of artifacts (based on the 2.96 factor) is at least 284,894 (and in reality, poor visibility in many units often limited our sample to 50% of the ground). This is *why* sampling is important!
As for TIME, total collection requires a huge commitment. Although we (for clarification here, “we” means David – Bill) initially considered surveying all 16 subunits, i.e., an entire 40 x 40 m unit, this proved unrealistic given the time it took for 5 individuals to vacuum a single subunit: 1.5 hours each for G1 and G6, 2 hours for G9, and 1 hour for G15. Using the total time it took to hoover 25% of the grid square (6 hours) as an index for hoovering this unit, we estimate that 5 individuals could hoover a high-density 40 x 40 m unit in about 24 work hours or well over 100 work hours! If the typical survey work day is 6 hours long (say, 6AM-noon), it would require 4 full days of a team collecting artifacts from the surface. Truly this would be an incredibly time intensive task! By contrast, sampling 20% of the unit through pedestrian survey takes about 20-30 minutes. In this perspective, total collection requires 72 times more time than pedestrian survey collection!
One final comparative result is interesting to note here. The “other” category increases dramatically through total collection, including numerous pieces of ancient glass (9), lithic stone artifacts (7), shells (24), slabs (13), gypsum (141), ceramic bricks (2), stone vessel (1), marble revetment (3), and a ceramic tessera or gaming piece. Although total collection was time intensive, this sort of qualitative information is quite useful in filling out our picture of the overall survey unit and indicates something of the functional variability within each survey unit.
Tomorrow, we will conclude our discussion of experiments with an overview of ceramic fabric categories. Stay tuned!
Experiments in Intensive Survey at Pyla-Koutsopetria
Another guest post from our esteemed guest blogger, David Pettegrew, the co-director the Pyla-Koutsopetria Archaeological Project and the 2010 Cyprus Research Fund speaker. Be sure to check out his posts on Tuesday and Wednesday.
When I announced my plans to conduct a survey experiment where we would “vacuum” an entire 40 x 40 m unit, Dimitri and Bill both laughed and told me that I had to try it simply for its absurdity. The 40 x 40 m survey unit was our standard size for the 252 units that we laid out across the Koutsopetria plain . As far as survey units go, 40 x 40 m (or 1,600 square meters) is a relatively small unit compared to that typically employed by those who conduct distributional survey. At the same time, when on the group, 40 meters is still vast when compared to the dimension of most lived space. After all, a 40 x 40 meter unit is over 130 square feet on a side and over 17,000 square feet which makes a single survey unit much larger than even the most over-sized suburban McMansions. The reason that my suggestion was humorous, however, had to do with the method I proposed for collecting artifacts. In our typical pedestrian survey, we only looked at 20% of the surface of the unit (for a more reasonable and suburban 3,400 square feet) and only collected each unique artifact from what we saw on the surface. My proposal was more extreme: get down on our hands and knees and completely “vaccum” (or “hoover”) all the artifacts from 100% of the unit to produce an exhaustive (and exhausting!) total collection rather than a quick 20% sample.
Why? I had the suspicion that the amount of artifacts we see when we walk across the unit is but a fraction of the total number of artifacts actually on the ground. The suspicion was based on experiments conducted in 2004 & 2006 where we ‘vacuumed’ artifacts from a 5% sample of our 40 x 40 m units, producing on average artifact counts that were 4 times greater than that produced through our 20% sample using pedestrian survey. We also proved through these experiments that the substantially larger number of artifacts did not really contribute much new chronological or functional information that warranted the additional investments of time and energy. We published a report on those experiments in an article by the authors in the Report of the Department of Antiquities, Cyprus 2007. However, we were aware of the substantial fluctuations of artifacts within 40 x 40 m units and the risk of a 5% sample (80 sq m) being unrepresentative of the unit as a whole (1600 sq m). The point of our 2010 experiments, then, was to test the results with a much more robust sample. While I initially wanted to vacuum 100% of the unit, time constraints prohibited me to vacuuming 25% of the unit. Even still, 25% of the unit is 5 times greater than what we sampled in 2004 and 2006.
Due to the limited time for fieldwork this season (and time constraints were one of the reasons that we sampled the units to begin with!), we could only resurvey a single unit placed in the highest-density area immediately northeast of the excavated apse of the early Christian basilica. We picked this unit to overlap with our very first Discovery Unit, a grid square of 40 x 40 m surveyed in 2004 northeast of the enclosed excavated part of the site of Koutsopetria. We divided the 40 x 40 unit into sixteen 10 x 10 m subunits, each representing 6.25% of the overall unit area (1,600 sq m). The grid squares have been given the prefix of G followed by a number between 1-16, as the following plan shows.
In our interest in comparing artifact counts noted during pedestrian survey—where a surveyor walks across the unit examining a 2 m wide swath and counting all pottery, tile, lithics, and other artifact types—with the total population of artifacts actually on the surface, we implemented two stages to the experiments. The first stage (pedestrian survey) we will report on today.
We began by having four fieldwalkers walk across the unit, recording all artifacts visible in their swath, giving a 20% sample of every 10 m of space across a 40 m transect. We collected ‘sub-tract’ artifact counts every 10 meters to produce density figures for each of the subunits (G1-G16) and assess the fluctuating density of pottery, tile, and lithic artifacts within a survey unit.
We collected the data for pedestrian survey three times. The results of these three separate pedestrian survey exercises are shown in the four figures below. The numbers represent artifact counts of each type (pottery, tile, other, and total), and the gray shaded columns with orange numbers represent the total artifact count for the swath per fieldwalker.
The first time (see figure 1.1 below) a group of untrained students walked the units—Andrew, Luke, Valerie, and Zane—who who had only seen artifacts at the museum and not in their “natural” (or better, archaeological) contexts.
A steady light rain the following day provided the chance for these same students to rewalk the unit a second time (see figure 1.2 below) with artifacts slightly more visible as a result of the washing of the dust.
Finally, a group of experienced fieldwalkers—David Pettegrew (DKP), Dimitri Nakassis (DN), and Bill Caraher (WRC) —walked the unit and counted artifacts (see figure 1.3).
Hence, the variables in these three episodes of pedestrian survey were experience, and, to a lesser extent, the amount of dust and dirt obscuring the surface of the pottery. Otherwise, between episodes environmental factors were constant, as were methodological factors and figure 1.4 shows the average of all the counts produced.
We walked these units on June 9 and 10 and each took between 15 minutes and half an hour.
Comparing simply the total artifact counts (the bottom right grid within each of the outlined figures), it is interesting to note that the rain appears not to have made a difference overall in density counts between units [1.1] and [1.2]. Although one student count went up significantly after the rain (LHM: 118 243), and another student count was slightly greater (AMH: 200 241), VAW’s total counts were essentially unchanged (335 to 334), while ZRB’s total counts actually declined (238).
As far as the other variable (experience) goes, there were some significant disparities between experienced walkers and inexperienced walkers as evident in counts for particular grid squares (compare G1 for [1.1] and [1.3]). Otherwise, the overall artifact counts were comparable for the units: the lowest-density and highest-density subunits occurred between all three walking episodes. If we look at total artifact counts for each unit as a whole, students counted 942 artifacts in [1.1] and 1056 artifacts in [1.2] while experienced walkers counted 940 artifacts in [1.3]. That is remarkably close!
We noticed one major difference, however, in the “other” category, which includes all artifacts besides pottery and tile: marble revetment, gypsum, shell, ancient glass, and ground stone agricultural implements. The experienced field walkers noted 2-4 times the number of other artifacts in [1.3] than inexperienced fieldwalkers in [1.1] and [1.2]. An experienced walker counted 4 lithic artifacts (chipped stone & ground stone) in G3 and G7 that an inexperienced walker missed.
Processing Pyla-Koutsopetria Pottery
Another post with help from our guest blogger and 2010 Cyprus Research Fund lecturer, David Pettegrew. Check out the first in our series of posts here.
In 2010 the Pyla-Koutsopetria Archaeological Project was above all the year of the potsherd. Excavations generate a lot of material. Our thirteen Excavation Units in 2008 and 2009 generated pottery at rates faster than our poor ceramicist, Scott Moore, could read and pottery began to pile up at the museum while we were finishing our work. We promised Scott that 2010 would be different and we were fully committed to getting the material read. In fact to our surprise, some bureaucratic snafus getting our permits to do fieldwork prevented the collection of additional materials, and allowed us to devote more time to processing the material collected in past seasons. So rather than venturing out into the field, we spent each mornings out at the museum processing hundreds of bags of ceramic artifacts and our afternoons processing digital data from previous years. The result of all this is that we caught up.
Now to the untrained eye, ceramic processing looks like a bunch of people doing just one or two different tasks. If you had come to Larnaka and peeked into our work space, you might only discern a couple of obviously different activities say, washing vs. analysis. But the team was conducting a wide range of different tasks related to the finds. The most obvious and important preliminary activity involved washing artifacts. There were a slew of them to wash, 147 bags to be exact, each bag containing dozens, sometimes hundreds of artifacts. Student enthusiasm for washing artifacts declined over a period of a week and a half but that is to be expected.
Dallas Deforest photographed every catalogued artifact at a resolution high enough to be published. In 2010, Dallas took over 1,200 digital photos of our catalogued artifacts to join the 3,100 artifacts taken in previous years. Two of our PKAP veterans from 2009, Becky Savaria and Melissa Hogan, began the process of labeling these photos. In late June, David spent about 10 additional hours getting all the photos in order. Now we have an archive of 4,300 digital photos of the 700+ catalogued artifacts and uncatalogued artifacts.
Building 13 was the central hub of ceramic analysis. Our co-director and golden child, Scott Moore, spent 3 weeks analyzing the ceramics from excavations including those occurring in the 1990s at the site of Koutsopetria and our more recent ones at Koutsopetria and Vigla. Scott analyzed the pottery in two different ways. First, he “scanned” less significant contexts from stratigraphically unimportant matrices like the plowzone, the kinds of contexts where reading pottery in great detail is not all that beneficial. “Scanning” involves 1) sorting pottery into broad categories based on fabric groups (e.g., fine ware, cooking / kitchen ware, and coarse ware); 2) setting aside the most distinct and diagnostic artifacts; 3) making basic observations about the context as a whole on a scanned unit form; and 4) analyzing in greater detail the most diagnostic pottery. Indeed, scanning is common in Mediterranean urban excavations where excavations might easily produce hundreds of thousands of artifacts (or millions). The more important contexts Scott read more thoroughly by identifying every artifact with a specific chronotype. A chronotype is simply a specific, limited identifier for known groups of pottery that combines date, potential functions, shape, and appearance. The point is that Scott read (and this is an estimate) 200 contexts while in Cyprus this year.
The other activities going on in Building 13 were data management (Bill), illustration (Becky Savaria, Melissa Hogan) and artifact cataloguing. David, Dimitri, and several students wrote more detailed catalog entries for particularly significant finds from the survey and excavation. In 2007, we completed a formal catalogue of the most significant artifacts from our archaeological survey. This year, we completed the catalogue of artifacts recovered in the two years of excavated soundings. The combined total of catalogued artifacts now exceeds 700. While it is unlikely that we’ll be able to publish a catalogue of 700 different artifacts, we plan to eventually release this complete catalog in a digital form and publish on paper a smaller number of “greatest hits”.
We recorded the following information for each artifact in our catalogue.
Artifact Number:
Dimensions:
Munsell:
Description Fabric:
Description Shape:
Description Decoration:
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Besides this work, we did a variety of more specialized work. Sarah Lepinski and Bill completed the documentation of the architectural and painted plaster from the excavated area at Koutsopetria producing a complete catalogue of material for publication. Sarah’s pain-staking examination of the plaster from the excavated area has revealed not only several phases of reconstruction and redecoration that remained obscure in the stratigraphic record, but also import clues about the architecture and even construction techniques used in the building. Nearby, several students completed a special project analyzing artifacts from the plowzone which we plan to report on later in the week.
In sum, at the end of the 2010 season, we can offer this summary of the quantity of artifacts processed by team PKAP between 2003 and 2010:
Total number of units processed (from both the survey and the excavation): 711. Each unit represents a discrete archaeological context either in terms of stratigraphy, method, or horizontal space in the survey area.
PKAP Pottery Processing by the Numbers
Batches of artifacts processed: 12,900. Scott divides the pottery from each unit into batches of similar types of artifacts based on the artifact’s fabric, the part of the vessel represented, and the chronotype. Over the past 8 years Scott has processed slightly fewer 13,000 batches.
Total number of artifacts processed: 37, 141. Each batch has an average of 2.9 artifacts.
Total weight of artifacts processed: 1,482.1 kg or 3,208.7 lbs or over 1.5 tons of pottery.
Artifact Photos Taken: 5,500
Artifacts Catalogued: 727
PKAP Season in Review
As promised yesterday, this week will features (gasp!) a guest blogger, Dr. David Pettegrew. David is the co-director of the Pyla-Koutsopetria Archaeological Project and over the next three days he will report on the various work conducted by the project this season. David will be visiting us here in Grand Forks in October as the annual Cyprus Research Fund Lecture Speaker.
Perhaps the greatest misimpression about archaeology today is that it mainly consists in digging holes in the ground. Excavation is the perhaps the most glorious and maybe even the most exciting, component of archaeological work (although some people find the analysis of the results of survey and excavation the most exciting. – Bill), but it’s still only a tiny part of the pie. As you may have gathered from this blog, our own work rarely involves traditional excavation. In the field, we’ve devoted lots of time to pedestrian survey, geophysical prospection, aerial photography, illustrating, and recording notes—and lots of time to processing all those artifacts, i.e., washing, analyzing, cataloguing, photographing. Beyond the field season, we spend most of our time processing data, reading, writing, and publishing their finds, and preparing for the next field season. Students who join us every summer in Cyprus for 3-4 weeks may forget that most of our work goes on for months after Cyprus. And the work is harder, not easier.
This morning we mailed a copy of our 2010 final report to the Cyprus Department of Antiquities. If the press release posted yesterday represents a kind of quick and dirty abstract of our work in the Pyla area, the annual final report provides in excruciating detail a full outline of our work. Anyone who does archaeological work has got to produce these things, and they’re not fun to write. This year’s report with contributions by Scott, Bill, David, and Sarah Lepinski, was about typical in numbering 77 single-spaced pages. They have been longer (100 pages) but they’re rarely shorter. Why so long? What we do is complicated and has to be explained in enough detail that it makes sense to anyone reading the report in the future. We tend to provide more detail in our reports than we need for our articles which does make it easier at a later point to create papers about our work.
As we’ve discussed here and here, the point of our 2010 field season was completing the analysis of artifacts from our 2008-2009 excavations of the sites of Koutsopetria and Vigla. We also anticipated being able to conduct additional fieldwork at these sites. As it turned out, for reasons we’ve explained elsewhere, we were unable to excavate and we received permission only at the 11th hour for our other fieldwork activities.
Even still, as we outlined in our final report, we’re not disappointed and did manage to accomplish the following tasks:
1. We finished a preliminary “read” of all the artifacts collected during intensive survey (2003-2007) and excavation (2008-2009), cataloguing in greater detail about 300 finds from survey and excavation.
2. We finished documenting and illustrating the area excavated by Maria Hadjicosti. We have posted about that here and here.
3. We took low-altitude blimp photographs of the excavated area and the landscape. We have already posted the results of that—including the disastrous flight of …. — here and here.
4. We continued documenting subsurface remains using ground penetrating radar.
5. We conducted limited resurvey of ridges to the west of Koutsopetria.
6. We conducted experiments designed to calibrate the results of the intensive survey in the study area.
Such activities lack the dazzle of opening another excavation unit (as exciting as that can be) but, we would argue, prove more important in the long run for our understanding of the site and create a solid foundation for the final publication of our fieldwork now in preparation.
In the next few days we will be providing some behind-the-scenes glimpses of the kinds of post-processing work that we have been doing in the month since our field season ended. Since we have already written about #s 2-3 elsewhere, we will focus our comments on #s 1, and 4-6. Enjoy.
Pyla-Koutsopetria Press Release
At the send of each season, the PKAP team prepares a press release that accompanies the final report submitted to the Department of Antiquities. The press release also gets sent out (in slightly modified form) by the various collaborating universities.
Here it is:
From May 20th to June 21st the Pyla-Koutsopetria Archaeological Project conducted a study and field season in the coastal zone of Pyla Village on the south coast of Cyprus. An international team of scholars under the direction of William R. Caraher (University of North Dakota), R. Scott Moore (Indiana University of Pennsylvania), and David K. Pettegrew (Messiah College), have worked in this area since 2003 documenting a sprawling Archaic to Late Roman settlement at the site. This year, the PKAP team took low altitude blimp photographs of the entire site, sampled the subsurface remains using ground-penetrating radar, and conducted several experiments to calibrate the results of earlier fieldwork. This work will allow the PKAP team to correlate more accurately the relationship between material on the surface of the grond and material still safely buried. Another part of the PKAP team worked in the Larnaka District Archaeological Museum to document the nearly 13,000 finds collected since 2003. The ceramic, architectural, and stone artifacts have revealed a vibrant community through most of antiquity with trading ties spanning the Mediterranean basin. The study of these finds has revealed that a site on the coastal height of Vigla was a fortified settlement from Archaic to Hellenistic times complete with a fortification wall and significant quantity of domestic ceramics. This is an unusual type of settlement on Cyprus and may have served as the base for a garrison protecting the eastern flank of Kition and the Larnaka bay. In Late Roman and Early Byzantine times, the town of Pyla-Koutsopetria stretched across the coastal plain below Vigla. This settlement appears to have been a bustling, cosmopolitan town during at the end of antiquity and may have met its demise after a series of earthquakes. The ceramic evidence demonstrate economic and cultural ties to Asia Minor, North Africa, Egypt, and Aegean. Preparations for publication are now under way.
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In more exciting news, stay tuned to Archaeology of the Mediterranean World for a special guest blogging experience! David Pettegrew and I are going to collaborate to produce a series of posts reporting on some archaeological experiments conducted this past summer on the Koutsopetria plain. Curious? Stay tuned!
Picturing Landscapes
I just finished reading Matthew Johnson’s Ideas of Landscape(Blackwell 2006). In it, he argued that maps, air photos, and archaeological hachured plans formed the foundation of landscape archaeology in Great Britain (and, I’d contend, elsewhere). Landscape archaeology in the Mediterranean has certainly benefited from maps and air (and increasingly satellite) photos which represent the first step, typically, in data gathering for an archaeological project. The first aerial photographs that we acquired in the study of our site of Pyla-Koutsopetria were the 1963 and 1993 series produced by the Cypriot Department of Maps and Surveys.
Since then, we were lucky enough to have a series of oblique, relatively low altitude air photos taken from an RAF helicopter in 2007. These photos provide more detail, but the oblique angles make them more difficult to use for producing accurate maps.
This past summer, we took even more low altitude and far more oblique air photographs using the infamous helikite (half helium blimp and half kite). We only had enough helium for a limited number of flights and this tempted us to take the airship up in, let’s say, unfavorable conditions. The results were blurry, but we were able to salvage some good quality aerial photographs from the set. The camera was rocking furiously beneath the wind-buffeted helikite so the photos lack a good representation of the horizontal. More disappointing is that the strong breeze from the sea made it difficult to photograph the fields closest to the busy Larnaka-Dhekelia road. The 1963 and 1993 aerial photographs showed some feature near the intersection of the main road and the northeast running road that now leads to the water treatment facility. While the feature does not stand out in the 2007 RAF photographs, they were taken after a particularly wet early summer which caused green wheat to be left in the field. The nicely ploughed fields of summer 2010 may have provided a different image.
One of my jobs for this summer is labeling these photographs and moving them to Omeka. For now, enjoy a different perspective on the site of Pyla-Koutsopetria.
Drawing Archaeology
A week or so ago I was asked why archaeologists spend so much time preparing line drawing illustrators of things when photography is quick, cheap, and “more accurate”. The answer is pretty easy, in fact. Some things are impossible to photograph. For example, Dimitri Nakassis and I spent an afternoon illustrating a wall uncovered by looters on our site. The only way we could reproduce the wall was to go down into a relatively narrow hole and produce a stone-by-stone illustration of the what we saw.
Likewise, as I have documented elsewhere, our illustration of the architecture at Pyla-Koutsopetria. Here a line drawing enables us to combine features that are not all visible at the same time in a photograph. In the drawing below, we were able to combine the results from excavation (at the far the southeastern and southwestern corners of the plan) with a stone-by-stone architectural drawing of the room and the plans produced by the architect at the time that the room was first excavated.
The images is, in effect, a historical composite of three different archaeological moments.
From Pyla-Koustopetria to Polis Chrysochous
I am back from Cyprus after a little over 5 weeks. Over the next week or so, I’ll bring everyone up to date on the triumphs and tragedies of our study and field season.
I have spent the past week at the site of Polis Chrysochous on the western side of the island. A team from Princeton University under the direction of William Childs have been documenting the site of Polis since 1983 and excavating at the site since 1984. The site itself lies amidst the modern tourist town of Polis and as a result, the excavated areas are sometimes separated from one another by some distance as the map below indicates. The material from these various excavations indicate activity on the site from as early as the Chalcolithic period, and there is archaeological evidence that the area prospered as late as the 16th century and the Lusignan era.
I was invited to visit the site by Amy Papalexandrou who was working to study and publish the Late Antique and Medieval material from the site. This included two basilica style churches both with Early Christian and later phases (one is clearly visible to the right in this photograph, the other is barely visible to the far left in this photograph ). While both churches have appeared occasionally in the literature on the architecture of Christian Cyprus, neither has been published thoroughly. I hope to contribute to their publication and learn more about the architecture and use of these buildings as well as the political, social, economic, and religious history of the island in the shadowy period of the late 7th to 10th century.
The later phases of the Early Christian basilicas on Cyprus have attracted some scholarly attention. Of particular interest is the practice of transforming wood-roofed basilicas to barrel-vaulted structures sometime between the 7th and 10th centuries. The phenomenon was initially studied by A.H.S. Megaw in the 1940s. Numerous other scholars have considered the date, cause, and significance of this phenomenon, including most recently, Charles Stewart in the Journal of the Society of Architectural Historians 69 (2010), 162-189. Unfortunately, few scholars have appealed to excavated remains to make their arguments for the chronology of this change, nor have they consistently appealed to archaeology to consider attendant changes in decoration, function, or even social significance of the churches transformed after the end of antiquity.
The churches of Polis both show signs of modification after their original construction. Moreover, both churches were systematically and relatively carefully excavated revealing evidence for chronologically important ceramics, . As a result, these buildings represent an important opportunity to document the later life of Early Christian architecture on the island and in the process consider more fully life on Cyprus during the tumultuous years of condominium when Arabs and Byzantine jointly ruled the island.
In other words, the story of the buildings at Polis allows us to continue the story begun with at the Late Antique coastal settlement at Pyla-Koutsopetria, which appears to have fallen been in steep decline by the end of the 7th century and shows little activity in later eras. Unlike Polis, the vulnerable coastal position of the Pyla-Koutsopetria and its clear dependence on the trading networks sustained by the trans-Mediterranean Roman Empire probably doomed the settlement to abandonment.
Last Days in Larnaka
The museum team from the Pyla-Koutsopetria Archaeological Project finished packing up the museum on Friday and is heading off to Polis on the western part of the island to check out the work of the Princeton Polis Expedition. They have not only substantial quantities of Late Antique pottery for Scott, but a pair of Early Christian basilicas (for me) and some Roman and Byzantine wall painting (for Sarah).
Packing up at the end of the season provides a useful perspective on the quantity of material that we have processed and analyzed during the year, and need to synthesize in the off season. The stacked creates filled with artifacts represent order from the chaos of real fieldwork and provide the basis for both the chronological and functional analysis of both our survey area and our various soundings.
In general, this was a successful season, although the various small projects, student volunteers, site visits, issues with the British base, and bizarre archaeo-political controversies conspired to give it a bit of a disjointed feeling.
And the real success of the season will only be evident this off season as the various members of the team continue to work to write up the results of our 7+ seasons of fieldwork.
There might be a bit of radio silence from the blog over the next week, as we might not have the same degree of internet connective in Polis. But I’ll be back blogging by the end of the week. Don’t you worry.
