Building materials from Thamusida (Rabat,Morocco): a diachronic local production from the Roman to the Islamic period

A total of 67 bricks and tiles found in different archaeological contexts during excavations at Thamusida have been investigated here. The first analysed set consists of 27 bricks found in the area of an Islamic ceramic workshop, which was active at Thamusida from the 8th century onwards. The second set of 40 bricks and tiles was found mostly in situ. They date to the Roman occupation of the site (1st-3rd century AD). Thirteen of them bear different types of stamps. In addition, two types of clay (7 samples) from the surrounding area were analysed as reference for the materials used in the local ceramic production. The samples were investigated by optical microscopy, scanning electron microscopy, X-ray diffraction and X-ray fluorescence. The results allowed reconstructing two local productions of building materials: one during Roman and one during Islamic times, both using local grey tirs (without any manipulation or temper additions) as raw materials. Imports were further identified, tracing both short- and medium-range trade connections. Banasa could be addressed as a likely production site of bricks stamped QAP and APP, while the bay of Tangiers should be indicated as a likely provenance of bricks stamped C∞ and HADRIAVG.     

Petrographic Characterization and Provenance Determination of the Crystalline Marbles Used in the Roman City of Banasa (Morocco): New Data on the Import of Iberian Marble in Roman North Africa

This paper reports the results of an archaeometric study of the crystalline marbles used in the Roman city of Banasa (Morocco). On‐site surveys allowed a detailed inspection of the monuments of the ancient city and sampling of the different marble lithotypes used for architectural purposes and sculptures. The inventory was completed by the study of both the grey‐and‐white streaked or spotted marble items stored in the warehouse of the archaeological site and of those currently exhibited at the National Archaeological Museum of Rabat. Provenance determination of 28 samples was carried out by means of a multi‐method approach combining mineralogical–petrographic data and C–O stable isotope analyses as the first step, and cathodoluminescence microscopy as a complementary technique to verify possible unusual alternative origins of some marbles. The analytical results obtained were compared with both the most reliable international databases and the few available studies dealing with the use of marble in other Roman towns in Morocco (e.g., Volubilis, Thamusida and Sala‐Chellah). They point to a variety of classical marble sources such as Carrara, Mount Penteli, Paros, Marmara and probably Mount Filfila (Algeria), and prove a significant import of Iberian lithotypes.     

PIGMENTS AND PLASTERS FROM THE ROMAN SETTLEMENT OF THAMUSIDA (RABAT,MOROCCO)

A total of 22 samples were taken both from plasters still in situ and from collapsed material recovered by French, Italian and Moroccan teams at the Roman settlement of Thamusida (Rabat, Morocco). The sample characterization was obtained using optical microscopy, scanning electron microscopy, image analysis and Raman micro‐spectroscopy. Plaster aggregate was made using a mixture of sands and clays that outcrop nearby, while lime was probably produced using the local limestone crust, as was further verified for the mortars. The plasters from the bath complexes (public buildings) and the Temple à trois cellae (sacred building) were very poorly made, while those from areas VII and XX (private buildings) indicated the involvement of more expert masons. The pigments used were cinnabar, red ochre, yellow ochre, Egyptian blue, green earth, chalk white and carbon black. The overall manufacture was of low quality, and hence perfectly comparable to that observed in other Roman Provinces. With respect to Italy and to other Mediterranean Roman sites, Thamusida fits well within an aesthetic and technical koinè that differentiates sites of the Italian peninsula from those in the Provinces.     

Ceramic findings from the archaeological site at Aiano-Torraccia di Chiusi (Siena,Italy): a multi-analytical approach

In 2005, the remains of a Roman villa, dating from the early fourth to the sixth centuries ad, were discovered at the archaeological site of Aiano-Torraccia di Chiusi (Siena, Italy). After being abandoned in the sixth century ad, the complex was occupied by a group of Ostrogothic or Lombardic artisans in the period between the sixth and the seventh centuries ad. Many ceramic remains (coarse pottery and red slip ceramics) from the first to the seventh centuries ad have been discovered on this archaeological site. These findings have been analysed using different analytical techniques (optical microscopy (OM), X-ray diffraction (XRD), X-ray fluorescence (XRF), scanning electron microscope-energy dispersive spectroscopy (SEM-EDS), attenuated total reflection Fourier transform infrared (ATR-FTIR), and micro-Raman in order to characterize the ceramic body, the coating, the temper, and to investigate the compositional relationship between the different kinds of ceramics. The use of different techniques on the same samples yielded information at different scales. OM and SEM-EDS yielded interesting information on the coarse pottery: the analyses performed on some minerals and rock fragments suggest that stone tesserae from the Roman villa (in the form of numerous marble fragments) were used in the production of this pottery. Bulk analyses (XRD and XRF) and subsequent micro-analyses (SEM-EDS, ATR-FTIR, and micro-Raman) of the red slip pottery revealed clear chemical, mineralogical and textural differences: some ceramics (the TCC sample group) typically have a Fe-enriched coating while others (the INGR sample group) present a clear difference in grain size but no chemical or mineralogical differences between the ceramic body and the coating.     

Radical changes in Islamic glass technology: evidence for conservatism and experimentation with new glass recipes from early and middle Islamic Raqqa,Syria*

The chemical analysis of excavated glass fragments from dated archaeological contexts in Raqqa, Syria, has provided a detailed picture of the chemical compositions of artefacts deriving from eighth to ninth and 11th century glassmaking and glassworking activities. Evidence for primary glass production has been found at three excavated sites, of eighth to ninth, 11th and 12th century dates; the first two are discussed here. The 2 km long industrial complex at al‐Raqqa was associated with an urban landscape consisting of two Islamic cities (al‐Raqqa and al‐Rafika) and a series of palace complexes. The glass fused and worked there was presumably for local as well as for regional consumption. Al‐Raqqa currently appears to have produced the earliest well‐dated production on record in the Middle East of an Islamic high‐magnesia glass based on an alkaline plant ash flux and quartz. An eighth to ninth century late ‘Roman’/Byzantine soda–lime recipe of natron and sand begins to be replaced in the eighth to ninth century by a plant ash – quartz Islamic soda–lime composition. By the 11th century, this process was nearly complete. The early Islamic natron glass compositional group from al‐Raqqa shows very little spread in values, indicating a repeatedly well‐controlled process with the use of chemically homogeneous raw materials. A compositionally more diffuse range of eighth to ninth century plant ash glass compositions have been identified. One is not only distinct from established groups of plant ash and natron glasses, but is believed to be the result of experimentation with new raw material combinations. Compositional analysis of primary production waste including furnace glass (raw glass adhering to furnace brick) shows that contemporary glasses of three distinct plant ash types based on various combinations of plant ash, quartz and sand were being made in al‐Raqqa during the late eighth to ninth centuries. This is a uniquely wide compositional range from an ancient glass production site, offering new insights into the complexity of Islamic glass technology at a time of change and innovation.     

Wood exploitation and food supply at the border of the Roman Empire: the case of the vicus of Thamusida – Sidi Ali ben Ahmed (Morocco)

This paper presents the results of inter-disciplinary work drawing on archaeobotanical and archaeometric studies to trace the agroforestry landscape and the supply economy at the vicus of Thamusida in north-west Morocco at the border of the Roman Empire. The available data indicate the self-sufficiency of the settlement in both forestry and agricultural products throughout the period investigated from the end of the 1st century BC to the beginning of the 4th century AD. Charcoal data testify to the presence of a Quercus suber forest in the close surroundings of the site and its exploitation for a variety of forestry products such as timber, fuelwood, cork, and probably also leaves and acorns to feed livestock. The overwhelming presence of Q. suber in the archaeological layer investigated clearly indicates that this forest was under human influence prior to Roman occupation and was already partially degraded. Charred seed and fruit remains suggest that the diet of both troops and civilians was mainly based on locally grown products and that all the inhabitants of the site had access to good cereals such as barley, naked wheats and pulses with large seeds such as horse bean and pea; quality fruits, such as olive and grape, were also produced locally for fresh consumption. Organic residue analyses of the contents of ceramic vessels and plastered vats allowed archaeobotanical data to be complemented, thereby shedding light on some of the imports at Thamusida. Despite the remote location of this settlement, imported goods such as oil and wine were transported here in amphorae from different parts of the Empire.     

WASTE GLASS,VESSELS AND WINDOW‐PANES FROM THAMUSIDA (MOROCCO): GROUPING NATRON‐BASED BLUE–GREEN AND COLOURLESS ROMAN GLASSES

A collection of window‐panes, vessels and alleged waste from Thamusida has been investigated by OM, SEM–EDS, ICP–MS, ICP–OES and XAS at the Fe–K and Mn–K edges. Glass samples have been characterized as natron‐based soda–lime–silica glasses, with low magnesium and low potassium. The results have been compared with 43 reference groups available for ‘naturally coloured’ and colourless glasses of both Roman and later ages. Two main types were distinguished: RBGY 1 (R oman B lue–G reen and Y ellow 1) and RBGY 2 (R oman B lue–G reen and Y ellow 2). Given their compositional similarity to the Levantine I or, to a lesser extent, HIMT glasses, the Syrian–Palestinian coast for RBGY 2 and Egypt for the RBGY 1 have been suggested for their provenance. Most Thamusida samples have been assigned to the RBGY 2 type. A small group of Thamusida colourless vessels was included into the RC (R oman‐C olourless) compositional field; the latter still being defined. The alleged waste pieces may define a local production that should have been of secondary type. The investigations performed on local raw materials seem to discount the possibility of a primary glass‐making site. XAS measurements determined that Fe²⁺ contents ranging between 30 and 52% are able to assure an aqua blue colour; below 30%, the glasses turn light green or light yellow.     

The Roman Shipwreck of Antirhodos Island in the Portus Magnus of Alexandria,Egypt

Between 1998 and 1999 three excavation campaigns were undertaken on a shipwreck at the now‐submerged site of the ancient Portus Magnus, off the coast of Alexandria. The site, close to the island of Antirhodos, was identified through geophysical and archaeological surveys carried out by the Institut Européen d’Archéologie Sous‐Marine (IEASM), directed by Franck Goddio. The remains of the ship lie c.5 m deep and are spread over c.350 sqm. No cargo has been found. Artefacts recovered, the details of the ship's architecture and radiocarbon dating all suggest it sunk between the end of the 1st century BCE and the 1st century CE. Its dimensions correspond to those of commercial ships of the Roman era. Identification of the wood used contributes significantly to our knowledge of materials used in naval architecture of this period.     

A Multidisciplinary Approach for the Archaeometric Study of Pozzolanic Aggregate in Roman Mortars: The Case of Villa dei Quintili (Rome,Italy)

This contribution focuses on the study of historical mortars from a Roman archaeological site known as Villa dei Quintili, a monumental villa located in the south‐eastern part of Rome (Italy). The study was carried out on 38 mortar samples, collected from several edifices within the complex. A multi‐analytical approach, including polarized optical microscopy, scanning electron microscopy coupled with energy‐dispersive system and laser ablation inductively coupled plasma mass spectrometry, was used to analyse the pozzolanic material used for the preparation of mortars. Data obtained on both major and trace elements were compared with the compositions of Pozzolana Rossa, Pozzolana Nera and Pozzolanella samples from the Alban Hills volcanic district, collected from a historic quarry nearby, as well as with literature data. The results of such a multidisciplinary approach allowed us to recognize the use of all three pozzolan types for the aggregate fraction of examined mortars from the Villa dei Quintili.     

ROMAN AND MEDIEVAL GLASS FROM THE ITALIAN AREA: BULK CHARACTERIZATION AND RELATIONSHIPS WITH PRODUCTION TECHNOLOGIES*

Compositional investigations were performed on 81 Roman and medieval glass fragments (first to 14th centuries ad ) from four Italian archaeological sites. The samples were soda–lime–silica in composition, with natron as flux for the Roman and early medieval glass samples, and with plant ash as flux for the late medieval ones. The varying colours are due to the differing FeO, Fe ₂ O ₃ , MnO and Sb ₂ O ₃ contents. Hierarchical cluster analysis identified six compositional groups related to age, which were compared with those found in the literature. In this way, technological continuity from the Roman to the early medieval period and the appearance of plant ash technology in the ninth century, 200 years in advance of the period previously believed, are demonstrated.     

Plant remains and amphorae from the Roman harbour under Flacius Street in Pula (Istria,Croatia)

The aim of this archaeobotanical and archaeological research is to expand knowledge about Roman diet and plant cultivation in Istria and to compare it with similar localities on the Eastern Adriatic coast. We have also tried to find some new information about maritime trade routes in the Mediterranean area in ancient times. Out of 27 samples collected from an excavated Roman port in Flacius Street in Pula, in total, 9809 plant macrofossils were recovered, identified and analysed. The results of the analysis show that most of the plant remains belong to the group of fruit trees and nuts. The most abundant are the remains of Ficus carica, Pinus pinea, Vitis vinifera subsp. vinifera, Rubus fruticosus agg. and Olea europaea subsp. europaea. These are all species that are widespread in the Mediterranean area and have likely always been consumed by the local population. The number of ruderal and weed species found is relatively high (31) in comparison with other plant categories (fruit trees and nuts; fruit collected from the wild; cereals; condiments; oil crops; vegetables and tubers; plants of fresh water environments; elements of maquis), but as they came to the site accidentally and not by targeted human activity, there are far fewer macrofossils of such plants than those of cultivated species. There were a few elements of evergreen forest vegetation and plants of aquatic habitats at the site (2 + 1), which suggests the existence of this type of vegetation in the area of the site in Roman times. Archaeobotanical comparisons of the site in Flacius Street with similar coastal Roman sites—Verige Bay on Veli Brijuni (first-fifth century ad), the port of Zaton near Nin (first-third century ad) and Caska Bay on the island of Pag (first and second century ad)—reveal considerable similarities, confirming the uniformity in nutrition and plant growth in the wider coastal area. Together with the two Roman ships, during the archaeological excavations of the Roman harbour and its layers, we collected over 2000 different archaeological artefacts out of which a large number was almost perfectly preserved. Some of the mentioned artefacts include ceramic amphorae, ceramic table- and kitchenware, ceramic lamps, different usable objects made of glass, wooden use objects, parts of ship’s equipment and other wooden tools, architecture elements from the nearby port as well as residential structures and remains of stone monuments. Because of the large amount of artefacts found at the site, the analysis of the artefacts and data processing are still in progress. As a contribution for recognizing organic remains, we isolated the amphorae whose purpose was the storage and maritime transportation of different food products and ingredients.     

On Some Remains of the Work of William of Wykham,at Windsor Castle

Scholarly opinion on the character and timing of the end of Roman Britain remains deeply divided. The evidence presented by those favouring a ‘long chronology’ is seriously flawed. ‘Continuity’ or ‘survival’ of Roman Britain is claimed because early medieval activity is attested on some former Roman sites and some early medieval artefacts are of Roman type. But Roman Britain was part of a ‘world system’ with a distinctive and rich archaeological assemblage, and once terms are properly defined and material analysed quantitatively, the argument for fifth-century continuity collapses. The archaeological evidence shows that after a long process of decline beginning in the third century, Roman Britain had ended by c. A.D. 400.     

DISCOVERY,PRODUCTION AND USE OF TIN‐BASED OPACIFIERS IN GLASSES,ENAMELS AND GLAZES FROM THE LATE IRON AGE ONWARDS: A REASSESSMENT*

Tin‐based opacifiers (lead stannate yellow and tin oxide white) were first used in glass production for a short period in Europe from the second to the first centuries bc , and then again throughout the Roman and Byzantine Empires from the fourth century ad onwards. Tin oxide was also used in the production of Islamic opaque glazes from the ninth century ad , and subsequently in enamels applied to Islamic and Venetian glasses from the 12th century ad onwards. A selection of published analytical data for the tin‐opacified glasses, enamels and glazes is summarized, and the methods used in their production are reassessed. The phase transformations occurring when mixtures of lead oxide, tin oxide and silica are fired are investigated with high temperature X‐ray diffraction (XRD) using a synchrotron radiation source, and these results are used to explain the observed differences in the glass, enamel and glaze compositions. Possible reasons for the use of tin‐based opacifiers in the second to first centuries bc , and for the switch from antimony‐ to tin‐based opacifiers in the fourth century ad are suggested, and the possible contexts in which tin‐based opacifiers might have been discovered are considered. The introduction of tin‐opacified glazes by Islamic potters in the ninth century ad is discussed in terms of technological transfer or independent invention.     

Memoir on some Ancient Arms and Implements Found at Lagore,near Dunshaughlin,County of Meath. With a Few Remarks on the Classification of Northern Antiquities

In 1957, gravel-digging exposed a previously unknown Roman fort and during the following five years this was destroyed. Observation during soil stripping, together with some manual excavation, recovered most of the plan and history which may be summarized as follows:

(a) Slight remains of occupation earlier than the first Roman fort; these were not fully worked out, and are not necessarily all of one period.

(b) A Roman auxiliary fort, founded c. A.D. 80 and destroyed after less than twenty years occupation. Most of the fort buildings were deliberately burnt, apparently after evacuation; it seems a little more likely that this was the work of the Romans themselves rather than of the natives, but there is no definite evidence.

(c) After an interval probably of a few years a ditch was dug along the line of the via principalis, as if intended for a fort of reduced area, as at Castell Collen or Tomen-y-Mur; this was unfinished, and after remaining open for a short time seems to have been deliberately refilled.

(d) A fortlet was built over the north quarter of the auxiliary fort. The meagre evidence available for dating would be consistent with a short occupation in the early or middle 2nd century.

(e) Finally, after a considerable interval, an irregular oval was enclosed by a light palisade. Full details of this occupation were not recovered. It seems to have begun about the end of the Roman period and may have continued into the 5 th century.     

Carlisle: Function and Change between the First and Seventh Centuries AD

Archaeological excavations combined with antiquarian observations shed considerable light on the evolution of Roman Carlisle. From being a fort in the northern advance under Cerialis and Agricola, Carlisle developed as a nodal hub supported by a number of activity ‘zones’. By the early third century most had become absorbed into the newly created civitas capital. The Roman town declined and stone buildings became ruinous, a process that probably commenced before the fourth century and continued until the land was taken over by the kings of Northumbria and the church in the seventh century. Scanty archaeological records for the sub- and post-Roman periods are supplemented by implications for socio-political structures drawn from texts.     

A Multidisciplinary Approach to the Study of Archaeological Mortars from the Town of Ammaia in the Roman Province of Lusitania (Portugal)

The Roman town of Ammaia (in Marvão Region) is considered one of the most important recent findings of the Roman presence in Portuguese territory. It was settled in Republican times and abandoned in the seventh century. In this research, 17 masonry mortars and renders from the West Tower (South Gate), the residential area near the West Tower, the macellum, the peristylium, the public bath building, the podium of the temple and the portico of the forum were analysed. The methodology of chemical, mineralogical and microstructural characterization has involved several complementary techniques, including stereomicroscopy, X‐ray diffraction, thermal analysis and scanning electron microscopy coupled with energy‐dispersive X‐ray spectroscopy. The results indicate that the mortars from the beginning of the town's edification were mainly composed of soil (clays). Later, during the main Roman building period, mortars were composed using a calcitic binder and the mortar composition varied according to their use and function. The samples from a period subsequent to the Roman occupation are based on a dolomitic binder. From the present study, relevant information has been acquired about the technological evolution of Roman construction in Ammaia, the historical context of the archaeological structures and guidelines for the conservation and restoration of mortars.     

Reply to comments on relative chronology

The court sites in south‐west Norway are a key material for discussing aspects of Roman period archaeology. So far, the Stand der Forschung is not satisfactory, mainly because the excavations that took place in the middle of the 20th century have not so far led to more systematic and synthesising studies being undertaken. It is argued in the article that the court sites can be considered indicative of central settlements in the Roman period, and that the sites were multifunctional. They probably served as gathering places for social activities like games, things and ritual, as production sites, and maybe as temporary accommodation for chieftains' retinues playing a role in intra‐Norwegian or perhaps Scandinavian military confrontations. The latter aspect is considered in some detail in the article, and it is suggested that the court site organisation is indicative of a Roman period (petty) south‐west Norwegian kingdom, and that the bog offering in Illerup place A might have originated from a south‐west Norwegian army defeated by ‘Danish’ forces. On an international level the court sites are an unparalleled type of archaeological monument reflecting social and functional aspects of general interest for European archaeology.     

MINERO‐PETROGRAPHIC AND GEOCHEMICAL CHARACTERIZATION OF ‘GRECO SCRITTO’ MARBLE FROM CAP DE GARDE,NEAR HIPPO REGIUS (ANNABA,ALGERIA)*

This work presents the results of the first mineralogical, petrographical and geochemical characterization of the marble quarried from the Cap de Garde headland, not far from Annaba (Algeria). This site is traditionally held by archaeologists to be the main source of supply of the so‐called ‘greco scritto’ marble, which was much used by the Romans for architectural and decorative–ornamental purposes, locally from the first century bc , and in Rome and central and southern Italy from the late Flavian period until the fourth century ad . The databank relating to the quarried material, created here for the first time, is used to establish the origin of ‘greco scritto’ found in six important Roman cities of North Africa: Hippo Regius and Cuicul (Djemila), in Algeria; Volubilis, in Morocco; Cyrene, in Libya; and Carthage and Utica in Tunisia. The results of this archaeometric study support the hypothesis (already put forward by authors) that the ‘greco scritto’used in the Roman Mediterranean originated from different sites, and suggest the existence of a number of North African quarries, also in the vicinity of Annaba.     

Characterisation of archaeological mortars and plasters from kyme (Turkey)

The present study focuses on the compositional characterisation of Roman, proto-Byzantine and Medieval mortars, sampled in the archaeological site of Kyme (Turkey), an Aeolian city, founded in the middle of the XI century BC by Greek populations. The mortars were studied through elemental (SEM-EDS, XRF), mineralogical (XRPD, De Astis calcimeter) and petrographic (polarised optical microscopy) analysis. The comparison between the samples allowed us to emphasise compositional differences within mortars of the same historical period.In particular, we detected the prevalent use of cocciopesto, which was used as a pozzolanic additive to create hydraulic mortars in the Roman and Byzantine period. The cocciopesto was used to improve the technological properties of an initially slaked lime. Furthermore, compositional similarities allowed us to attribute an unknown sample to the Roman period. Our study also pointed out the fact that the lower quality mortars belonged to the Medieval period. As a matter of fact, the most friable sample belonging to the Middle Ages turned out to be a mixture of clay, lime and volcanic sand.     

The site of Al-Qurainiyah: Topography and phases of an early Islamic coastal settlement on Failaka Island

This paper presents the latest finds from the early Islamic site of Al-Qurainiyah on Failaka Island, Kuwait. Trenches opened to the west of the main late Islamic village led to the identification of residential buildings and a workshop located along the shoreline, while the pottery assemblage suggests a permanent occupation from at least the seventh century CE to the early ninth century CE. The last two years of excavations allowed us to uncover archaeological contexts that seem to indicate a previous occupation, dating to the late Hellenistic period (second century BC). The long-term occupation, strategic position of the settlement facing a wide and well-sheltered lagoon, as well as the installation of a stable settlement in the same period of Al-Qusur—the main early Islamic site of the island—seem to suggest the interpretation of Al-Qurainiyah as a landing place used both in the early Islamic period and beforehand.