New research goals at the time of Covid-19. Testing Raman Spectroscopy on Nubian and Egyptian-style pots

If there is something that the Covid-19 pandemic has taught us is resilience, work flexibility and mostly the capacity to design alternative solutions to meet the various physical restrictions and newly shaped work conditions and needs. Further, we learned the importance of networks and acquiring skills even in remote formats, and that online (and/or hybrid) classes and conferences can give virtuous outputs as those in presence.  Within the framework of our project, a successful  example of this is certainly represented by our online Diverse Nile Seminar Series 2021 Cultural Diversity in Northeast Africa.

For me operating within the Work package 3 of the project and principally dealing with laboratory analysis on the material data – ceramic samples – collected in the field, the pandemic has inevitably meant that I had to shift my main focus from the study of fresh excavation data to the study of reference collections. Hence, in the last months my work schedule has been mainly centred on documentation, database archive, and comparison among the various ceramic datasets. Also, the obligatory permanence in Germany (missing the field and the warmness of the Sudanese sun) together with the need to work often via remote or, whenever possible from the lab, pushed me to convey my working goals to search for new theoretical approaches and interpretative inputs, eventually enlarging the spectrum of the analytical competencies and methodologies devoted to the study of the ceramic samples.

In these circumstances the idea was born together with our PI and other colleagues from the Department of Earth and Environmental Sciences of the LMU to cooperate and expand the networking between our departments hence to test together a new analytical methodology for archaeological ceramic material, namely Raman Spectroscopy.

This technique, which took its unusual name after the Indian physicist C. V. Raman who was the first to observe Raman scattering in 1928 and won a Nobel Prize in Physics in 1930 for this discovery, is a molecular spectroscopy procedure which provides information about vibration and rotational states of molecules. It works using the interaction of a source of monochromatic light, normally an intensive monochromatic laser radiation, and the matter of the sample. The largest part (99.99%) of the laser light radiates through the sample, a very small proportion is scattered in all spatial directions (so-called Rayleigh scattering), finally an even smaller part is scattered inelastically (so-called Raman scattering). This latter contains information about the sample, its molecular structure (no the single chemical elements) and specific characteristics of the material (see among others, Spieß et al. 1999; also What is Raman Spectroscopy? | Raman Spectroscopy Principle (edinst.com); Raman spectroscopy – Wikipedia).

For the study of archaeological samples like ceramics, Raman spectroscopy has the advantage of being a non-destructive (only a minimum portion of the sample as the same slide of the thin section is needed), rapid and relatively low-priced technique. However, the high potential of this methodology may collide with the natural heterogeneity of most of the ancient, especially hand-made, ceramic manufactures (Medeghini et al. 2014; Vandenabeele & Van Pevenage 2017; see also Legodi & de Waal 2007). This is why, at the moment, our goal consists primarily to observe the methodological potentials of Raman and discern its use for our specific research questions.

For our trial study, we selected ten samples (of which six are ceramics from Sai Island and four from the Dukki Gel’s reference collection). All of them are either locally produced cooking pots or other local ware manufactured both according to the so-called Nubian and Egyptian style (Figure 1). In testing this new analytical technique, our main aims are the following: to search for differences in producing technique and firing temperatures/regimes 1) between the Nubian and Egyptian-style samples; 2) between the Nubian samples from Sai Island and those from Dukki Gel; 3) between the Egyptian-style samples from Sai Island and those from Dukki Gel; 4) among the different Nubian types (cooking pots with basketry impressions, incisions, and others). In addition, we also want to look at the behaviour of the organics and their carbonization and check for a possibility of a better characterisation of some opaque mineral phases.

Figure 1 – Examples of Nubian cooking pots with basketry impressions from Sai Island (left) and Dukki Gel; Kerma (right).

In the last days, together with the colleague Fabian Dellefant, geoscientist and doctoral student at the Department of Earth and Environmental Sciences of the LMU, we have realized high resolution scans of the selected ceramic thin sections and photographed them at the petrographic microscope under different light conditions (both transmitted cross polarized and plane polarized light, and also reflected light) in order to describe and document the areas which we are ultimately going to analyse by Raman.

Stay tuned to know more about our ongoing work and first results!

Selected references and links

Legodi, M. A. &, de Waal, D. 2007. Raman spectroscopic study of ancient South African domestic clay pottery, Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 66, Issue 1, 135-142.

Medeghini et al. 2014. Micro-Raman spectroscopy and ancient ceramics: applications and problems. Journal of Raman Spectroscopy, 45, Issue 11-12, Special Issue: Raman in Art and Archaeology 2013, 1244-1250.

Spieß, G. et al. 1999. Eine einfache Einführung in die Raman-Spektroskopie. LMU. Die quantitative Analyse (uni-muenchen.de).

Vandenabeele, P. & Van Pevenage J. 2017. Raman Spectroscopy and the Study of Ceramic Manufacture: Possibilities, Results, and Challenges. In Hunt, Al (Ed.) The Oxford Handbook of Archaeological Ceramic Analysis.

What is Raman Spectroscopy? | Raman Spectroscopy Principle (edinst.com)

First preliminary remarks on the petrography of the Dukki Gel ceramic samples

In the last few weeks I haven’t been very present in our blog since I spent much time sitting at the microscope of the Department of Earth and Environmental Sciences of the LMU, just nearby to our office, examining and documenting the first batch of ceramic samples from the site of Dukki Gel. These samples have been included as a reference collection within our DiverseNile project thanks to the kind agreement of the excavator, Charles Bonnet, and the responsible ceramicist Philippe Ruffieux. Philippe has already studied all of these samples within their context and we can now address fresh questions within the DiverseNile work packages and with scientific analysis.

In times of the Covid pandemic, the procedure to access the laboratories is rightly strict: registration is mandatory before working in the microscopy room, only a maximum of three people are allowed to work simultaneously in the lab and of course we are required to wear medical masks and disinfect all devices and workspace at the end. All this will seem obvious, but what I personally find curious is the contrast between the meticulousness of the analytical procedure, further complicated by the current Covid rules, and the simple and tangible nature of the ancient ceramics, whose immense  anthropological and material complexity, and huge archaeological interpretative potential is all enclosed in a thin section of just 30 microns thick.

In my last blog post – I introduced the method I use for the classification of the ceramic samples and the layout within the Filemaker database which I specifically designed for the purpose of the petrographic study.

So far a total of twenty-one ceramic samples from Dukki Gel has been analysed by optical microscopy (OM), while forty-three samples are currently located at the Atominstitute in Vienna where they are being analysed for instrumental Neutron Activation Analysis (iNAA) by our colleague and external expert in the project Johannes Sterba.

Most of the samples for OM (18 out of 21) are Nubian vessels among which are cooking pots (both basketry impressed and incised ware), jars, globular vessels and also fine black topped Kerma ware. Further, three Egyptian-type vessels (two red slipped bowls and one fragment of a bread mould) were analysed under the microscope.

Petrographically, the Nubian samples from Dukki Gel appear quite homogeneous in term of their composition, displaying mineralogical and textural features which also resemble very much the petrography of the Nubian samples analysed from the New Kingdom town of Sai Island (see D’Ercole and Sterba 2018; D’Ercole in prep.). Differences in the textural features, in the proportion of some specific mineral phases, and in the amount and type of the organic tempers contained in the paste allowed distinguishing four principal petrographic groups or micro fabrics. The first group is characterized by a very sandy framework with a dominant grain size in the class of silt to very fine-grained sand, a good sorting of the non-plastics and very few organics mainly small and tubular in shape. The second group also displays a sandy framework, sorting is moderate with some medium sized rounded quartz and feldspar possibly added as temper, and common tubular organics partially carbonized and moderately aligned. Group 3, to which belongs the majority of the analysed samples, is sandy, moderately sorted, with common to abundant organics, either partially or completely carbonized, heterogeneous in shape and size,  and possibly referring to various parts of plant remains (including stem, glume, palea, and lemma?) (Fig. 1) and also herbivore dung. Finally, the fourth group of Dukki Gel Nubian samples contains abundant heterogeneous organics similar to group 3 but also large carbonate inclusions of microcrystalline calcite most likely intentionally added as tempering material. To this last group, which does not show a real comparison with the material from Sai, where the presence of calcite was ubiquitous and seemed a natural component in the clay source/ soil rather than a tempering agent, refers exclusively cooking pots with basketry impressions and a single jar.

Figure 1 – Detail of organic inclusion with visible plant cell structure from Sample DG-17. PPL micropho by G. D’Ercole.

All in all, similarly to what was observed for Sai Island, the petrofacies of the Nubian ceramics is very homogeneous and points to the selection of clays, or better soils, derived from local Holocene Nile alluvia, with a composition very similar along the various sectors of the Nile river (D’Ercole and Sterba 2018). These ceramics were possibly tempered with some medium- and coarse-sized aeolian sand or with quartz grains drained by the local river systems. Technologically, the amount and type of the organic material added to the paste (more or less abundant and selected) makes the main difference and allows distinguishing among various sub-recipes or ways of doing the vessels. Further, the orientation of the voids left by the combustion of the organic matter into the paste permits to recognize among the use of different manufacturing techniques. Specifically, in the cooking pots with basketry impressions which were built on a mat, the organics appear generally well or moderately aligned with a prevalent presence of longitudinal features like stems or plant stalks (Fig. 2a). Differently, in those pots (e.g., globular pots, bowls) built with the coiling technique, the organics show mainly a poor alignment and a specific orientation that indicates the ‘relict’ coil features (Fig. 2b). The black topped and the fine polished Kerma ware generally contain less organics, these latter are also smaller in size indicating either the use of herbivore dung and/or a selection of added plant remains.

Figure 2a – Thin section scan of Sample DG-18 (Nubian cooking pot). The good alignment of the pores structures and of the voids and relicts left by the combustion of the organics indicates that this vessel was built on a mat. Image by G. D’Ercole.
Figure 2b – Thin section scan of Sample DG-17 (Nubian large bowl). The specific concentric alignment of the pores structures and of the voids and relicts left by the combustion of the organics indicates that this vessel was manufactured with the coiling technique. Image by G. D’Ercole.

Highly interesting in the sample from Dukki Gel, is the presence of a jar with a roughly polished / wet-smoothed black surface which although showing clear Nubian technological exterior features is characterized by a coarser and sandier fabric with more abundant feldspar and granitoid rock fragments resembling certain Egyptian cooking pots (Fig. 3). This sample, so far an unicum in our selection, points to an hybridization of Nubian and Egyptian traditions (this time with the intersection of some performance of ‘Egyptian’ criteria to a general Nubian technological and stylistical formula) and well supports our overall theoretical framework and working approach on the complexity and diversity among various Nubian local narrative experiences and conceptions of material culture.

Figure 3 – Sample DG-22 (Nubian jar) with roughly polished / wet-smoothed surfaces characterized by a sandy fabric rich in alkali feldspar. Photo by G. D’Ercole.

Hopefully by the end of this month, we also will have the first set of chemical data from the reference collection from Dukki Gel in our hands which we will then compare with the macroscopic evidence and with these petrographic remarks.

References

D’Ercole, G. In prep. Petrography of the pottery from the New Kingdom town of Sai, in: J. Budka, with contributions by G. D’Ercole, J. Sterba and P. Ruffieux, AcrossBorders 3: Vessels for the home away from Egypt. The pottery corpus from the New Kingdom town of Sai Island. Archaeology of Egypt, Sudan and the Levant. Vienna.

D’Ercole, G. and Sterba, J. H. 2018. From macro wares to micro fabrics and INAA compositional groups: the Pottery Corpus of the New Kingdom town on Sai Island (northern Sudan), 171–183, in: J. Budka and J. Auenmüller (eds.), From Microcosm to Macrocosm: Individual households and cities in Ancient Egypt and Nubia. Leiden.

Designing the petrographic documentation for the ceramic samples of the DiverseNile project

Documentation is the bread and butter of archaeological research. Archaeologists are daily committed to documenting everything: sites formation processes, dwellings, funerary remains, and above all the various products of material culture.

Any method of documentation, from the most essential and traditional (i.e., technical drawing of archaeological strata and finds) to the most elaborated (i.e., image-based 3D-modelling of artefacts, human remains, and sites) constitutes a fundamental step toward archaeological reconstruction. Documentation mainly serves the archaeologist to record and understand the material remains, settlement and funerary features identified during the archaeological excavation and to leave a trace of it. Also, through documentation, a preliminary process of interpretation and critical reading of the data is carried out. Furthermore, the system we adopt to document and classify archaeological data is not unbiased, rather it already implies a methodological choice and a specific scholarly interpretative approach.

As responsible, within the Work Package 3 of the DiverseNile project, for the technological and compositional analyses of the ceramic materials, I want to outline the method I use for the petrographic classification of the ceramic samples which we are going to analyse from the new concession area in the Attab to Ferka region and from our reference collections (e.g., the AcrossBorders ceramic samples from Sai Island; the New Kingdom/Kerma-Dukki Gel pottery samples; see also D’Ercole and Sterba 2018).

Generally speaking, petrography, via optical microscopy (OM), is a well-established procedure employed to examine ceramic objects and identify the source of clay raw materials and tempers used to manufacture the vessels (Fig. 1). This technique allows answering to crucial archaeological questions on pottery provenance and technology.

Figure 1. Example of ceramic thin section illustrating some common features documented for petrographic analysis. Adapted from Smith 2008: 74, Fig. 6.1.

In Sudanese archaeology, the interest in provenance and technological studies on pottery started approx. 50 years ago. In 1972, Nordström, referring to the work of Anna Shepard (1956), produced a systematic publication on early Nubian ceramics from the region of Abka-Wadi Halfa and defined the term fabric meaning the set of the compositional and anthropogenic characteristics of the ceramic material that could be determined by microscopic observation and comprised both the composition of the groundmass (or clay matrix) and non-plastic inclusions plus the potter’s technological choices adopted to make the vessel.

For the study of the ceramic material of our DiverseNile project I have designed a specific petrographic layout within the Filemaker database of the ceramic samples (Fig. 2).

Figure 2. Layout of the petrographic database designed for the DiverseNile project.

The petrographic layout includes information on the archaeological provenance and dating of the samples. It also correlates the micro fabric or petrographic group to the macroscopic evidence, that is the visual description, shape, function, and macro ware of the ceramic specimens. The consecutive entries inform on a) the groundmass or clay matrix of the sample (i.e., colour, homogeneity and optical activity); b) non-plastic inclusions (i.e., sorting, dominant grain size, maximum grain size, abundance, and mineral composition); c) plastic inclusions (i.e., clay pellets, argillaceous rock fragments etc.); d) porosity (i.e., voids abundance, type, dominant size, iso-orientation); e) organics (i.e., abundance, type, dominant size). The database also notifies on the firing regime of the ceramic sample (i.e., oxidised, reduced, reduced with narrow ox margins, dark core due to insufficient ox, oxidised to reduced). Finally, a graphic field incorporates the microscopic photos of the thin section taken under both cross-polarised (XPL) and plane polarised (PPL) light. Comments, possible comparison with other samples, and a link to the iNAA compositional groups are included as further relevant information.

The purpose of this database is to simplify the data entry of the petrographic evidence and to standardize it according to an easy-to-use, flexible, and consistent classificatory system that embraces the main information on the composition and technology of production of the ceramic data (see among others Quinn 2013).

At a subsequent step, this information will be intertwined with the results obtained from the other laboratory analyses and eventually with the archaeological data to provide a further analytical and interpretive tool for understanding the diversity and complexity of the material culture of the human groups living in the periphery of the Egyptian towns in Sudanese Nubia.

References

D’Ercole, G. and Sterba, J. H. 2018. From macro wares to micro fabrics and INAA compositional groups: the Pottery Corpus of the New Kingdom town on Sai Island (northern Sudan), 171–183, in: J. Budka and J. Auenmüller (eds.), From Microcosm to Macrocosm: Individual households and cities in Ancient Egypt and Nubia. Leiden.

Nordström, H. – Å 1972. Neolithic and A-Group sites. Uppsala, Scandinavian University.

Quinn, P. S. 2013. Ceramic Petrography: The Interpretation of Archaeological Pottery & Related Artefacts in Thin Section. Oxford, Archaeopress.

Shepard, A. O. 1956. Ceramics for the Archaeologist. Washington, DC: Carnegie Institution of Washington.

Smith, M. S. 2008. Petrography, Chapter 6, 73-107, in: J. M. Herbert, T. E. Mc Reynold (eds.), Woodland Pottery Sourcing in the Carolina Sandhills. Research Report No. 29, Research Laboratories of Archaeology, University of North Carolina at Chapel Hill.

Where are you from? A „diverse“ material perspective on this common tricky question

Recently, I happened to have a conversation with a group of friends and colleagues who come from different parts of the world about the meaning and the various cultural and ontological implications of the question “Where are you from?”.

In seven years, that I have lived abroad, working in an international team, my way to approach and answer this question has perhaps changed as my point of view on the concepts of identity, nationality, and ethnicity which compound the complexity of us as humans.

Certainly, asking someone “Where are you from?” opens a multitude of different and equally acceptable answers. Most of us will reply indicating the place from where they were born providing to the interlocutor as many details on their specific provenance (state, region and even city) as they want to affirm and communicate their roots. Others will possibly prefer to answer with the place they currently live as this information might better fit with their actual perception of cultural identity.

Not by chance, these arguments are closely related to the work I am doing within our DiverseNile project and particularly, in my case, as specialist in provenance and technological studies on pottery, with the significance of materiality – and ceramic objects – for addressing questions on contact space biographies, cultural identity and encounters.

In our times, objects and goods mostly carry with them labels that inform us about the place of manufacture and from where their design come from (i.e., Designed in X, Made/Manufactured in X). These claims are regulated and controlled according to rules established by National and International commissions. Hence, the acronym COO stands for “Country of Origin” and represents the country or countries of manufacture, production, design, or brand origin where an article or product comes from (https://en.wikipedia.org/wiki/Country_of_origin). A document called certificate of origin will then authenticate that the product sold or shipped was manufactured in a particular country (https://en.wikipedia.org/wiki/Certificate_of_origin).

In the past such labels did not exist. However, already in the late Predynastic period in Egypt (c. 3000 BCE) markings of vessels appeared as well as sealings on jar stoppers which refer to the provenance and owner of the contents (cf. e.g. Engel 2017). Markings of objects, especially amphorae, were more common in the Second Millennium BCE giving us information about the provenance and owners of the content as well as places of manufacture. However, most of the ceramic vessels intended for private use was not “registered”. Hence, the main task of ceramologists and archaeometrists consists in investigating on (and decoding) the place/s of origin and manufacture of ceramic objects, by means of the differentiation and classification of their characteristic stylistic, morphometric, technological, and compositional features.

Perhaps the concepts itself of provenance and origin of an object comprise several acceptations. First, there is the provenance/s of the raw materials (which in the case of ceramics includes both the clay raw materials and tempers), in the second instance, the place of manufacture, then the place (or places) of use of the object, and lastly that of discard (which might differ from that of use). To this list are added all the information concerning the “provenance” and “cultural identity” of the potter who produced the vessel and those regarding the people who used and discarded that object.  

Overall, the notion or idea of “identity” includes many areas that are still unexplored or that would otherwise require a thorough discussion. For many years, both in the field of archaeology and cultural anthropology, static and crystallized visions of identity have unfortunately dominated. Identities were often perceived as if they are closed monothetic entities or categories without reciprocal and fluid relations with the others. Recently, we have witnessed attempts to lighten such positions, through what could be defined as a deconstruction of the ontology of identity. Remarkably interesting, in this respect, is an essay by the cultural anthropologist Remotti (2010). He believes that the concept itself of “identity” can be dangerous as it might represent a kind of (artificial) opposition between “us” and the “others”.

The case study of Sai Island (as well as other central Egyptian towns in Nubia) (see e.g. Budka 2018; Carrano et al. 2009; D’Ercole and Sterba 2018; Ruffieux 2014; Spataro et al. 2015) has shown the interesting coexistence in the archaeological record of Egyptian-style objects produced with Nubian raw materials (we would now say Designed according to the Egyptian-style and Made in Nubia), objects produced entirely according to the Nubian style in Nubian raw materials (Designed and Made in Nubia), imported Egyptian objects (Designed and Made in Egypt) and also hybrid products (Designed in a mixture of Egyptian and Nubian style and Made in Nubia). So-called hybrid pottery types are however difficult to separate from the first category of Egyptian-style objects.

“Hybrid” Dinnerware Collection of modern design showing the attempt to combine and merge Eastern and Western cultures in a single plate.

The autoptic stylistic and morphological classification of pottery together with the chemical and technological laboratory analyses carried out on selected samples are fundamental tools to access this information. However, while the compositional data relating to the origin of the clay raw materials is in all respect’s objective and quantifiable (values ​​and proportions of specific diagnostic major, minor and trace chemical elements), the visual stylistic and technological information are more ephemeral and critical to access.

O. Gosselain (2000: 193) stated that “Decoration belongs to a category of manufacturing stages that are both particularly visible and technically malleable, and likely to reflect wider and more superficial categories of social boundaries. Fashioning, on the other hand, constitutes a very stable element of pottery traditions and is expected to reflect the most rooted and enduring aspects of a potter’s identity”. Hence, decoration, more than technological behaviours and manufacturing choices, is a fairly permeable category, susceptible to change and innovation (Gosselain 2010). This is well traceable in the decoration of Egyptian ceramics which partly adopted Nubian ways of decoration. Differently, a change and contamination in the technological and manufacturing stages of pottery (e.g., surface treatment, forming/fashioning) often indicates a stronger and deeper level of cultural communication and social transmission. In this respect, the so-called hybrid Egyptian-Nubian products from Sai and elsewhere perfectly embrace the extraordinary complex and intertwined dynamics of cultural encounter between Nubians and Egyptians in New Kingdom Nubia.

The main purpose of my work task within the DiverseNile project is the understanding of these dynamics through a scientific and objective analysis of the various identity codes and “provenance attributes” of the ceramic objects found in the area between Attab to Ferka, and their comparison with the pottery corpus of the central sites like Sai. Also, it is possible that the categories themselves of “provenance”, “identity” and “cultural belonging” will be re-calibrated and newly shaped according to a new and more fluid vision of the materiality of the human culture. Possibly, when asked “Where you come from?”, objects will then surprise us with a new range of answers.

References

Budka, J. 2018. Pots & People. Ceramics from Sai Island and Elephantine, 147–170, in: J. Budka and J. Auenmüller (eds.), From Microcosm to Macrocosm. Individual households and cities in Ancient Egypt and Nubia, Leiden.

Carrano, J.L., Girty, G.H. and Carrano, C.J. 2009. Re-examining the Egyptian colonial encounter in Nubia through a compositional, mineralogical, and textural comparison of ceramics. Journal of Archaeo­logical Science 36, 785–797.

D’Ercole, G. and Sterba, Johannes H. 2018. From Macro Wares to Micro Fabrics and INAA Compositional Groups: The pottery corpus of the New Kingdom town on Sai Island (Northern Sudan), 171–184, in: J. Budka and J. Auenmüller (eds.), From Microcosm to Macrocosm. Individual households and cities in Ancient Egypt and Nubia, Leiden.

Engel, E.-M. 2017. Umm el-Qaab VI: Das Grab des Qa’a, Architektur und Inventar. Mit einem Beitrag von Thomas Hikade. Archäologische Veröffentlichungen, Deutsches Archäologisches Institut, Abteilung Kairo 100. Wiesbaden, Harrassowit.

Gosselain, O. 2000. Materializing identities: an African perspective. Journal of Archaeological Method and Theory 7, 187–216.

Gosselain, O. 2010. Exploring the dynamics of African pottery cultures, 193–226, in: R. Barndon, A. Engevik and I. Øye (eds.), The Archaeology of Regional Technologies: Case Studies from the Palaeolithic to the Age of the Vikings. Edwin Mellen Press, Lampeter.

Remotti, F. 2010. L’ossessione identitaria. Laterza, Rome.

Ruffieux, P. 2014. Early 18th Dynasty Pottery Found in Kerma (Dokki Gel), 417–429, in: J.R. Anderson and D.A. Welsby (eds.), The Fourth Cataract and Beyond. Proceedings of the 12th International Conference for Nubian Studies, British Museum Publications on Egypt and Sudan 1, Leuven.

Spataro, M., Millet, M. and Spencer, N. 2015. The New Kingdom settlement of Amara West (Nubia, Sudan): mineralogical and chemical investigation of the ceramics. Archaeological and Anthropological Sciences 7.4, 399–421.

Assessing cultural diversity in the Attab to Ferka region by means of pottery technology

Time passes by for everyone. Also, and above all for archaeologists. Still, it is pleasant when this comes with experience and new opportunities.

On February 2013 I wrote my first post for the AcrossBorders blog. At that time, I was sitting in the magazine rooms of the Sai Island excavation house starting to get familiar with the Nubian fabrics of the New Kingdom town. A few months later I moved to Vienna to join the ERC Starting Grant ‘AcrossBorders’ project led by Julia Budka.

Since then, hundreds of ceramic samples have passed through my hands. These were both Nubian-style and Egyptian-style vessels locally produced at Sai Island / Upper Nubia, but also Imported Nile clays, Marl clays and Oasis clays from Egypt, together with other imported wares from Levant. These materials constituted the aim of my research for AcrossBorders and were sampled, documented and analysed by me together with Johannes Sterba, at the Atominstitut of Vienna. Over the years, thanks to Julia Budka, I have learned how to recognize and classify these wares and fabrics and we calibrated together on them the different analytical strategies and research objectives. Now I fairly know each of those samples by heart.

Yet, we do not grow where things are easy, we grow when we face challenges (and new opportunities).

With October, I happily started in Munich a new three-year contract within Julia Budka’s ERC Consolidator Grant project ‘Diverse Nile’, where I am, together with other researchers and Julia Budka, responsible for the Work Package 3: Reconstructing cultural encounters based on the material culture. My main tasks within WP 3 include petrographic technological and compositional analyses on the ceramic materials sampled from the new concession area in the Attab to Ferka region, dating to the Bronze Age.

Emphasis will lay on pottery technology and mostly on the so-called hybrid products and their significance for cultural encounters (see, e.g., Stockhammer 2013; Matić 2017; Beck 2018; Steel 2018; Souza 2020), on Nubian local style vessels and on the provenience of wheel-made ‘Egyptian’ pottery.

Analytical methods will comprise petrographic (OM) and provenance chemical analysis (iNAA and possibly XRF) but also digital image analysis (DIA) and scanning electron microscopy (SEM) on selected samples. Further, since the focus will lay mainly on pottery technology and manufacturing techniques, other analytical methodologies (e.g., radiography and computed tomography, CT) will be evaluated for studying the internal structures of the objects and the diversity among specific hand -made (i.e., coiling, mold-building, slab-building), wheel-made and possibly also mixed hand-made and wheel-made forming techniques (see e.g., Sanger 2016). A greater importance will be given to observe the technology of production of the vessels aimed at outlining all stages of the manufacturing processes, from raw material procurement through preparation, production, finishing, until use, and discard.

Macro and micro (PPL, 4x magnification) photos of a bread plate sample (manufactured in a local Egyptian-style Nile clay) from SAV 1 East, Sai Island. Note the very fine-grained fabric with abundant organic inclusions distributed randomly through the sample because of the hand-shaped manufacturing (technique).

From a theoretical perspective, a new challenge will be to deal with the ceramic assemblages from the periphery of the central urban sites and relate them to our reference collection from Sai Island. Were there any different strategies in the selection of raw materials, preparation of the vessels and manufacturing techniques between central and peripheral sites? Furthermore, were the proportions between local Nubian-style, Egyptian-style, and various imported vessels equal or not between core sites and periphery?

For this purpose, comparative material from other main New Kingdom/Kerma central sites in Upper Nubia will be incorporated to our principal reference collection from Sai Island.

Luckily, Covid times have not completely blocked us, and thanks to a kind agreement with our colleague and friend Philippe Ruffieux, we are currently waiting to welcome in Munich a bunch of approx. forty samples, among which typical Nubian (Kerma) and Egyptian Nile clay wares from the New Kingdom/Kerma-Dukki Gel site.

It will be a pleasure to start my new task within the DiverseNile project by documenting, sampling, and examining this highly relevant material!

References

Beck, T. 2018. Postkoloniale Objektepistemologien? Homi Bhabhas Konzepte in archäologischen Forschungen – ein Überblick, 237–262, in: M. Hilgert, H. Simon and K.P. Hofmann (eds.), Objektepistemologien. Zur Vermessung eines transdisziplinären Forschungsraums. Berlin.

Matić, U. 2017. Der dritte Raum, Hybridität und das Niltal: das epistemologische Potenzial der postkolonialen Theorie in der Ägyptologie, 93‒111, in: S. Beck, B. Backes and A. Verbovsek (eds.), Interkulturalität: Kontakt Konflikt Konzeptualisierung. Beiträge des sechsten Berliner Arbeitskreises Junge Aegyptologie (BAJA 6), 13.11.-15.11.2015. Wiesbaden.

Sanger, M.C. 2016. Investigating pottery vessel manufacturing techniques using radiographic imaging and computed tomography: Studies from the Late Archaic American Southeast, Journal of Archaeological Science: Reports 9, 586‒598.

Steel, L. 2018. Egyptianizing practices and cultural hybridity in the Southern Levant during the Late Bronze Age, Journal of Ancient Egyptian Interconnections 20, 15‒30.

Stockhammer, P.W. 2013. From Hybridity to Entanglement, from Essentialism to Practice, Archaeological Review from Cambridge Issue 28.1: Archaeology and Cultural Mixing, 11‒28.

Souza, A. M. de. 2010. Melting Pots: Entanglement, Appropriation, Hybridity, and Assertive Objects between the Pan-Grave and Egyptian Ceramic Traditions, Journal of Ancient Egyptian Interconnections 27, 1‒23.