Production centres of African Red Slip ware (2nd-3rd c.) in northern and central Tunisia: archaeological provenance and reference groups based on chemical analysis

Provenancing of VI–VII century terra sigillata coming from Matera burial area by X-ray photoelectron spectroscopy

“…Powder analysis is generally preferred because less prone to surface contamination. Also data relevant to African Terra Sigillata reported in literature are obtained generally from powders [11][12][13]. Two fragments from Furnace of Calle of Tricarico, Tr1s and Tr2s, and the relevant powders, Tr1p and Tr2p, were analyzed by XPS using the same experimental setup as described in the experimental section.…”

“…On considering that the chemical composition of different African Terra Sigillata (A, C3, D, A/D) is well known and already reported [11][12][13] (Table 3S), it was possible to compare the chemical composition of all the available samples and clays. The ratio of (Al + Fe)/Si versus the ratio of (Ca + Mg)/Si is a simplification of the Table 2 Atomic rations of main elements to silicon for the three fragments of Terra Sigillata wares exhibited in the National Archaeological Museum of Matera (means of three measurements; the errors reported represent ± 1 × standard deviation).…”

“…According to the above considerations, to obtain exhaustive and discriminating data, a comparison of samples coming from certain local production (Furnace of Tricarico) with the data available in the literature relating to clays of the hydrogeological basin of Matera [8][9][10], was carried out. Then, the unknown Terra Sigillata samples were compared with both these local samples and different African productions, whose data are available from various studies [11][12][13], in order to locate the connected ateliers and then the chronology of the chosen objects.…”

Redes emergentes de distribuição cerâmica no Mediterrâneo antigo: as lucernas de terra sigillata da África Proconsular

“…EC, antes da conquista bizantina, parece ter marcado um retorno à situação anterior, e as oficinas do norte prosperaram mais uma vez. As oficinas mais importantes do período não mais foram situadas no Mejerda (El Mahrine), mas no vale Oued Miliane (Oudhna) e Cartago (Mackensen e Schneider, 2002, 2006. Oficinas em torno desta cidade foram aparentemente as últimas a produzir e exportar ARS até o final do 7º ou início do 8º sécs.…”

Archaeology and Archaeometry of Ceramics of the Roman City of Thaenae (Tunisia): Between Inland Roman Africa and the Mediterranean Basin

“…In a preliminary study [3] a few ARS samples from the Gap collection were compared with each other and with some known references materials [4]. Although the analyses were carried out on a limited number of specimens, the combined typological, petrographical and geochemical approach lead to rather good results:…”