Papers by Yannis Maniatis
Open access journal of archaeology & anthropology, Oct 31, 2023
The skeletal material from the Classical and Prehistoric period cemeteries of ancient Pella in Ce... more The skeletal material from the Classical and Prehistoric period cemeteries of ancient Pella in Central Macedonia, Greece was examined anthropologically and analyzed for the stable isotopes of carbon and nitrogen. Additionally, the Prehistoric cemetery burials were radiocarbon dated. The dates define the use of the prehistoric cemetery in the Early Bronze Age period (6600-6050 BC). The anthropological examination and isotopic analysis provided information on the sex, age at death, dental hygiene and gave interesting insights about the eating habits and access to food sources in the two periods. The people of the Classical period seem to consume much more foods enriched in animal protein (meat and dairy products) from the terrestrial environment as evidenced by the increase mainly in δ 15 N and not particularly δ 13 C, than the EBA people. A certain differentiation was observed in the diet between men and women in the EBA, with the diet of women being tentatively less enriched in animal proteins compared to that of men. No difference was observed in the Classical Period which may indicate and improvement in the socio-economic conditions.
Radiocarbon, Sep 30, 2023
Open Schools Journal for Open Science, 2020
Στην παρούσα εργασία θα ασχοληθούμε με τον προσδιορισμό της ημερολογιακής ηλικίας δειγμάτων (βαθμ... more Στην παρούσα εργασία θα ασχοληθούμε με τον προσδιορισμό της ημερολογιακής ηλικίας δειγμάτων (βαθμονόμηση) από αρχαιολογικές ανασκαφές στην Ελλάδα. Το ερευνητικό ερώτημα που θέσαμε είναι: Με ποιο τρόπο θα προσδιορίσω την ημερολογιακή ηλικία δειγμάτων από αρχαιολογικές ανασκαφές στα οποία έχει μετρηθεί η περιεκτικότητα σε άνθρακα-14; Η μεθοδολογία που εφαρμόσαμε βασίζεται στο γεγονός ότι κάθε έμβιος οργανισμός όσο ζει διατηρεί σταθερή την περιεκτικότητα του άνθρακα-14 στους ιστούς του. Αμέσως μετά τον θάνατο του αυτή η περιεκτικότητα μειώνεται εκθετικά με τον χρόνο. Το χρονικό διάστημα (t) από την στιγμή του θανάτου του έμβιου οργανισμού προσδιορίζεται από τη σχέση: t=8033∙lnNΝ0 (1), όπου Ν η περιεκτικότητα σε άνθρακα-14 του δείγματος προς χρονολόγηση και Ν0 η περιεκτικότητα όταν ο οργανισμός ήταν ζωντανός. Ο χρόνος που προσδιορίζεται από τη σχέση (1) ονομάζεται ηλικία σε έτη άνθρακα-14. Στην πραγματικότητα, όμως, η Ν0 μεταβάλλεται με το χρόνο, λόγω μεταβολής του μαγνητικού πεδίου της...
Interdisciplinary studies on ancient stone : ASMOSIA X ; proceedings of the tenth international conference of ASMOSIA, Association for the Study of Marble et Other Stones in Antiquity, Rome, 21-26 May 2012, 2015
The discovery of two sarcophagi fragments in Saint-Romain-en-Gal, incited the archaeological serv... more The discovery of two sarcophagi fragments in Saint-Romain-en-Gal, incited the archaeological service of the Gallo-Roman Museum of Saint-Romain-en-Gal and Vienne to investigate for the first time the origin of the Late Antiquity sarcophagi of these two sites. Τhis investigation included scientific analysis for the provenance of marble, performed on 19 of the most significant roman funeral marble artefacts. The techniques used were: Maximum Grain Size (MGS) measurements, Electron Paramagnetic Resonance Spectroscopy (EPR) and carbon and oxygen stable isotope analysis (IRMS). In addition, the quality of the marble crystallization, as it appears under the stereoscopic optical microscope, and the transparency, using a special light source, were also determined in order to clarify any dubious provenance cases, compared to the laboratory’s database. The results show that Carrara and Proconnesos marble were mostly used for the Late Antiquity sculptures in the area, but for some of them Penteli marble was used too.
στο Γ. Γραμμένος (επιστ. επιμ.), «Μελέτες για την Προϊστορική Μακεδονία», Ηλεκτρονικό περιοδικό Προ-ιστορήματα, (issn 2241-2921), Παράρτημα 1ο, Μάρτιος (2013), 2013
We have radiocarbon-dated the main settlement of Skarkos (Skarkos II) on the Cycladic island of I... more We have radiocarbon-dated the main settlement of Skarkos (Skarkos II) on the Cycladic island of Ios, using a set of animal bone samples. The site of Skarkos stands on a hill in a coastal plain, mid-way down the western side of Ios island and about 1 km from the island’s harbour. It is the first time this important settlement with a wealth of finds and an extraordinary building system with two-storey houses is dated in absolute terms complementing the chronology of the Cycladic EBA II period. The radiocarbon determinations show that the major phase of the settlement came to an end between circa 2550 and circa 2500 BC. The dates also confirm the archaeological evidence that the main occupation period is dated archaeologically to the EC II period (Keros-Syros culture). Furthermore, in order to embed the new Skarkos dates within the overall Cycladic chronology and define better the end of the EC II phase, we treated the Skarkos dates together with published dates from other Cycladic sites using Bayesian analysis considering two different models.
Archaeometry, Aug 1, 1982
... Levi 1999; Levi et al 1998a; 1998b Buxeda i Garrigos et al forthcoming NAA, PE (AAS), Dolía a... more ... Levi 1999; Levi et al 1998a; 1998b Buxeda i Garrigos et al forthcoming NAA, PE (AAS), Dolía and Impasto from sites in S. Italy: Coppa Nevigata, Madonna di Ripalta, Rocca Vecchia, Otranto, Letica, Broglio di Trebisacce, Tursi and Bisignano (Total 43 samples) Correlation ...
MRS Proceedings, 1988
The ceramic specimens examined in this study were taken from roof tiles of the Hellenistic period... more The ceramic specimens examined in this study were taken from roof tiles of the Hellenistic period found in Pella, northern Greece. They represent five chronologically successive tilings of two buildings. Neutron activation analysis results showed that a different clay was used for the construction of each roof. Results of technological analysis indicate a consistency in the manufacture of the tiles, except for the first tiling which seems to be technologically different and more advanced.
Acta Metallurgica Et Materialia, Aug 1, 1995
Since ancient times randomly distributed quartz is routinely included in ceramic earthenwares as ... more Since ancient times randomly distributed quartz is routinely included in ceramic earthenwares as an aid to drying. Although it has been noticed that this practice also provides the ware with higher capability for flaw tolerance so that a crack does not become readily unstable in the event of overloading during service, no systematic study of the effect or a satisfactory model has been reported in the open literature. This work reports the results of such an investigation on the influence of grain size and volume fraction of quartz on the elastic modulus, strength and fracture energy dissipation of such composites based on fired clays. In addition, we have studied the fracture micromechanisms by dynamic in situ optical microscopy and scanning electron microscopy and introduced a simple model to explain the results, based on the local effects of the stress field of the inclusions.
Radiation Measurements, Feb 1, 2003
This work explores the potentials and di culties in thermoluminescence (TL) dating of marble obje... more This work explores the potentials and di culties in thermoluminescence (TL) dating of marble objects, which have never been exposed to sunlight since their ÿrst burial, by applying a new procedure similar in approach to sediment dating. The idea is based on the observation that exposure to sunlight reduces the TL peaks of marble to a residual level. When the marble is buried after bleaching, radiation from the sample and soil, as well as cosmic radiation, reÿll the electron traps that have been emptied by the sunlight. Using the additive dose method, an attempt has been made to date a sample of known age (2nd century BC) buried since antiquity. The peak at 290 • C was selected as the most suitable for dating (activation energy 1.7-2:0 eV, minimum spurious e ects, high intensity, linear response up to 50 Gy, bleachable down to the residual level in 1 h). This peak is well deÿned in most types of marble, common in antiquity (marble from Penteli, Paros, Naxos and Thassos). The age calculation gave 2570 ± 410 years, which is quite close to the archaeological age. Possible error sources, such as surface impurities and regenerated thermoluminescence, and ways to minimise them are discussed.
Journal of Applied Physics, May 15, 1992
Nature, Sep 1, 1975
A SEQUENCE of pottery sherds from Iraq spanning the period about 6000 BC to 750 AD and two sherds... more A SEQUENCE of pottery sherds from Iraq spanning the period about 6000 BC to 750 AD and two sherds from Turkey about 5000 BC have been examined using a scanning electron microscope (SEM). This examination provided information on the internal morphology ...
Bulletin archéologique des Écoles françaises à l'étranger, Nov 24, 2020
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Papers by Yannis Maniatis