Papers by Georgia Kordatzaki
EXARC, 2024
This study assesses the impact of firing on burnished ceramic surfaces. For this task, two main f... more This study assesses the impact of firing on burnished ceramic surfaces. For this task, two main factors related to burnishing were examined and evaluated, the reflection of the ceramics and pottery surface sheen. Macroscopic observations on the burnished surface were made with the naked eye.
A series of experiments was conducted to explore the ways in which traditional firing conditions affect pottery surfaces. Data was gathered from four different firings, including three open-air dung firings and one wood-firing in an updraft kiln. Additional testing was carried out under controlled conditions in the laboratory. The aim was to further investigate and determine the specific thermal characteristics that influenced the burnished pottery and use the feedback to approach burnishing disturbance in traditional conditions.
The data showed that certain thermal profiles and characteristics cause a reduction in burnishing on ceramic surfaces, with the rise in temperature, among others, being a significant one. The type of clay also proved to be an important factor regarding the way in which the reduction in burnishing progresses. The present inquiry constitutes the first part of an ongoing research project that will be completed with Scanning Electron Microscopy (SEM) analysis of the microstructure and surface micromorphology of the ceramics.
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ΘΗΡΑΣΙΑ ΙΙΙ. ΑΡΧΑΙΟΛΟΓΙΚΗ ΕΡΕΥΝΑ ΚΑΙ ΙΣΤΟΡΙΑ ΤΟΥ ΤΟΠΙΟΥ ΜΙΑΣ ΝΗΣΙΩΤΙΚΗΣ ΚΟΙΝΩΝΙΑΣ, 2021
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ISBN, 2021
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Forum Archaeologiae 96/IX/2020, 2020
In this paper we present and compare two separate wood-firings of predominantly plain, handmade b... more In this paper we present and compare two separate wood-firings of predominantly plain, handmade burnished ceramics in an updraft kiln. Our main aim was to gain a better understanding of the function of the kiln and a greater knowledge of ancient firing processes. Both firings took place in the same kiln, but the pottery installation underwent a series of modifications and the fuel type was partially changed for the second firing [1]. The objectives of the experiments were to: a) evaluate the effectiveness of the kiln based on the heat rate, the maximum temperature achieved, and heat loss, b) investigate the effect of the fuel type on heat efficiency, c) assess the impact of the temperature and prevalent atmosphere on the colour and texture of the pottery, and d) check the quality of the fired vessels and, if necessary, provide more sophisticated adaptations to improve the heat efficiency of the installation.
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Journal of Archaeological Science: Reports, 2016
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Journal of Archaeological Science: Reports, 2021
This paper will present the results of an integrated programme of analysis that combines typologi... more This paper will present the results of an integrated programme of analysis that combines typological, macroscopic, petrographic, and microstructural techniques, with experimental analysis, to examine and reconstruct the chaine operatoire of production used to make Bronze Age ceramics from the site of Pheneos, Peloponnese, mainland Greece. The results demonstrate the prevalence of local production using a narrow range of raw materials and specific sequence of forming techniques that were applied to make a wide variety of vessel types from the Early through to the Late Bronze Age. This domination of local production is accompanied by the presence of a small number of high quality imports from key centres of production during the Middle and Late Bronze Age.
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The Mycenaean culture of Greece (ca. 1700–mid-11th century BC) has left an outstanding material l... more The Mycenaean culture of Greece (ca. 1700–mid-11th century BC) has left an outstanding material legacy in terms of buildings and artefacts. For a long time, its exploration has focused on palaces and funerary monuments. However, in recent years the state of research has changed significantly, opening up new perspectives for a broader understanding of the emergence of Mycenaean culture in the 17th to 15th centuries B.C. The contributions in this volume provide new information, either insights from recent fieldwork, the fresh analysis of key assemblages, or more comprehensive comparative studies that, by examining settlements and tombs alike, open up new perspectives on the emergence of a new social order.
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Journal of Archaeological Science: Reports, 2016
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Pottery Technologies and Sociocultural Connections between the Aegean and Anatolia during the 3rd Millenium BC, 2018
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The Annual of the British School at Athens
During the archaeological survey research project ‘Island Cultures in a Diachronic Perspective: t... more During the archaeological survey research project ‘Island Cultures in a Diachronic Perspective: the case of Therasia’, large amounts of pottery were recorded throughout the island of Therasia, ranging in date from the Bronze Age to modern times. Focusing on the prehistoric period, pottery of the Early Cycladic and late Middle Cycladic periods was recovered at Panaghia Koimisis, which is situated on the southern part of the island. This paper presents the petrographic data and results of the analysis carried out on pottery samples which are representative of variable surface treatments and different macro-fabrics of these two prehistoric periods. Tackling issues of provenance and technology, the current scientific analysis attests the coexistence of Theran and off-Theran pottery fabrics already at Panaghia Koimisis in the Early Cycladic period. The majority of the pottery fabrics at Panaghia Koimisis were identified as Theran and the analysis demonstrates intensive contacts between t...
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B. Eder – M. Zavadil (eds.), (Social) Place and Space in Early Mycenaean Greece. International Discussions in Mycenaean Archaeology October 5–8, 2016, Athens, Mykenische Studien 35, Vienna 2021, 107-132, 2021
https://austriaca.at/8854-4inhalt?frames=yes
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Journal of Archaeological Science Reports, 2021
This paper will present the results of an integrated programme of analysis that combines typologi... more This paper will present the results of an integrated programme of analysis that combines typological, macro-scopic, petrographic, and microstructural techniques, with experimental analysis, to examine and reconstruct the chaîne opératoire of production used to make Bronze Age ceramics from the site of Pheneos, Peloponnese, mainland Greece. The results demonstrate the prevalence of local production using a narrow range of raw materials and specific sequence of forming techniques that were applied to make a wide variety of vessel types from the Early through to the Late Bronze Age. This domination of local production is accompanied by the presence of a small number of high quality imports from key centres of production during the Middle and Late Bronze Age.
Free access for 50 days - https://www.sciencedirect.com/science/article/pii/S2352409X2030451X?dgcid=author
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Forum Archaeologiae 96/IX/2020, 2020
In this paper we present and compare two separate wood-firings of predominantly plain, handmade b... more In this paper we present and compare two separate wood-firings of predominantly plain, handmade burnished ceramics in an updraft kiln. Our main aim was to gain a better understanding of the function of the kiln and a greater knowledge of ancient firing processes. Both firings took place in the same kiln, but the pottery installation underwent a series of modifications and the fuel type was partially changed for the second firing [1]. The objectives of the experiments were to: a) evaluate the effectiveness of the kiln based on the heat rate, the maximum temperature achieved, and heat loss, b) investigate the effect of the fuel type on heat efficiency, c) assess the impact of the temperature and prevalent atmosphere on the colour and texture of the pottery, and d) check the quality of the fired vessels and, if necessary, provide more sophisticated adaptations to improve the heat efficiency of the installation.
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E. Alram-Stern and B. Horejs (eds.), Pottery Technologies and Sociocultural Connections between the Aegean and Anatolia during the 3rd Millennium BC, 2018
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The present paper reports results of an integrated study of a selection of pottery recovered from... more The present paper reports results of an integrated study of a selection of pottery recovered fromthe altar of Zeus, Mount Lykaion, Arcadia, in the Peloponnese, Greece, dating from the Neolithic to the Early Iron Age.
A multianalytical approach based on petrographic and chemical analysis, supported by refiring tests and geological sampling,
has been employed to tackle issues of technology and provenance. Results shed light on patterns of raw material sources exploitation and pottery production and supply at the site over time.
The definitive version is available at http://dx.doi.org/10.101 /j.jasrep.2015.12.017
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The Annual of the British School at Athens, 2018
During the archaeological survey research project ‘Island Cultures in a Diachronic Perspective: t... more During the archaeological survey research project ‘Island Cultures in a Diachronic Perspective: the case of Therasia’, large amounts of pottery were recorded throughout the island, ranging in date from the Bronze Age to Modern times. Focusing on the prehistoric period, pottery of the Early Cycladic and late Middle Cycladic periods was recovered at Panaghia Koimisis, which is situated at the southern part of the island of Therasia. This paper presents the petrographic data and results of the analysis carried out on pottery samples which are representative of variable surface treatments and different macro-fabrics of these two prehistoric periods. Tackling issues of provenance and technology, the current scientific analysis attests the co-existence of Theran and off-Theran pottery fabrics already at Panaghia Koimisis in the Early Cycladic period. The majority of the pottery fabrics at Panaghia Koimisis were identified as Theran and the analysis demonstrates intensive contacts between the southern parts of Thera and Therasia throughout the Early and late Middle Cycladic phases. Moreover, adding support to previous studies, this research indicates a wide Cycladic pottery network, in which the site participated as a consumer. During the late Middle Cycladic period major changes in the Theran production are documented, including the disappearance of the earlier pottery recipe, which had been prevalent at Panaghia Koimisis.
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ΒΡΥΣΙΝΑΣ II. Η ΚΕΡΑΜΕΙΚΗ ΤΗΣ ΑΝΑΣΚΑΦΗΣ 1972-1973.Συμβολή στην Ιστορία του Ιερού ΚορυφήςVRYSINAS IITHE POTTERY OF THE 1972-1973 EXCAVATION.Contribution to the history of the Peak Sanctuary, 2016
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Συνολικά, δεκαεννέα (19) δείγματα επιλέχθηκαν για ανάλυση με τη μέθοδο της τεχνικής Laser induced... more Συνολικά, δεκαεννέα (19) δείγματα επιλέχθηκαν για ανάλυση με τη μέθοδο της τεχνικής Laser induced Breakdown Spectroscopy (LIBS) από τη Συλλογή Μεσαιωνικής και Νεότερης Κεραμικής
του Τμήματος Ιστορίας και Αρχαιολογίας του Πανεπιστημίου Κρήτης. Κύριο ζητούμενο της μελέτης ήταν ο προσδιορισμός της βασικής τεχνολογίας παραγωγής των υαλωμάτων και των χρωστικών μέσω της καταγραφής του στοιχειακού προφίλ τους, όπως αυτό ανιχνεύθηκε από την εξέταση των δειγμάτων που αναλύθηκαν εργαστηριακά. Στην παρούσα φάση έγινε αποκλειστικά ποιοτικός (στοιχειακός) προσδιορισμός του σώ-ματος των οστράκων, δηλαδή του πηλού. Τα δεδομένα που ελήφθησαν με τη μέθοδο LIBS για την εφυάλωση και τις χρωστικές είναι ποιοτικά και ημιποσοτικά.Τα 19 δείγματα της Συλλογής Μεσαιωνικής και Νεότερης Κεραμικής επιλέχθηκαν ως αντιπροσωπευτικά διαφορετικών κατηγοριών κεραμικής. Με δεδομένο το ζητούμενο της μελέτης, επιλέχθηκαν κυρίως όστρακα καλής ποιότητας, εφυαλωμένης κεραμικής, με εξαί-ρεση ένα όστρακο μαγειρικού σκεύους με εφυάλωση. Μετά την επιλογή του υλικού, που καλύπτει ένα ευρύ χρονικά φάσμα από τον 12ο αι. έως και τις αρχές του 20ού αιώνα, ακολούθησε μακροσκοπικός έλεγχος του σώματος των οστράκων με τη χρήση φακού μεγέθυνσης προκειμένου τα δείγματα να ομαδο-ποιηθούν λαμβάνοντας υπόψη και τα οπτικά-μακροσκοπικά χαρακτηριστικά του ίδιου του πηλού.
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Papers by Georgia Kordatzaki
A series of experiments was conducted to explore the ways in which traditional firing conditions affect pottery surfaces. Data was gathered from four different firings, including three open-air dung firings and one wood-firing in an updraft kiln. Additional testing was carried out under controlled conditions in the laboratory. The aim was to further investigate and determine the specific thermal characteristics that influenced the burnished pottery and use the feedback to approach burnishing disturbance in traditional conditions.
The data showed that certain thermal profiles and characteristics cause a reduction in burnishing on ceramic surfaces, with the rise in temperature, among others, being a significant one. The type of clay also proved to be an important factor regarding the way in which the reduction in burnishing progresses. The present inquiry constitutes the first part of an ongoing research project that will be completed with Scanning Electron Microscopy (SEM) analysis of the microstructure and surface micromorphology of the ceramics.
Free access for 50 days - https://www.sciencedirect.com/science/article/pii/S2352409X2030451X?dgcid=author
A multianalytical approach based on petrographic and chemical analysis, supported by refiring tests and geological sampling,
has been employed to tackle issues of technology and provenance. Results shed light on patterns of raw material sources exploitation and pottery production and supply at the site over time.
The definitive version is available at http://dx.doi.org/10.101 /j.jasrep.2015.12.017
του Τμήματος Ιστορίας και Αρχαιολογίας του Πανεπιστημίου Κρήτης. Κύριο ζητούμενο της μελέτης ήταν ο προσδιορισμός της βασικής τεχνολογίας παραγωγής των υαλωμάτων και των χρωστικών μέσω της καταγραφής του στοιχειακού προφίλ τους, όπως αυτό ανιχνεύθηκε από την εξέταση των δειγμάτων που αναλύθηκαν εργαστηριακά. Στην παρούσα φάση έγινε αποκλειστικά ποιοτικός (στοιχειακός) προσδιορισμός του σώ-ματος των οστράκων, δηλαδή του πηλού. Τα δεδομένα που ελήφθησαν με τη μέθοδο LIBS για την εφυάλωση και τις χρωστικές είναι ποιοτικά και ημιποσοτικά.Τα 19 δείγματα της Συλλογής Μεσαιωνικής και Νεότερης Κεραμικής επιλέχθηκαν ως αντιπροσωπευτικά διαφορετικών κατηγοριών κεραμικής. Με δεδομένο το ζητούμενο της μελέτης, επιλέχθηκαν κυρίως όστρακα καλής ποιότητας, εφυαλωμένης κεραμικής, με εξαί-ρεση ένα όστρακο μαγειρικού σκεύους με εφυάλωση. Μετά την επιλογή του υλικού, που καλύπτει ένα ευρύ χρονικά φάσμα από τον 12ο αι. έως και τις αρχές του 20ού αιώνα, ακολούθησε μακροσκοπικός έλεγχος του σώματος των οστράκων με τη χρήση φακού μεγέθυνσης προκειμένου τα δείγματα να ομαδο-ποιηθούν λαμβάνοντας υπόψη και τα οπτικά-μακροσκοπικά χαρακτηριστικά του ίδιου του πηλού.
A series of experiments was conducted to explore the ways in which traditional firing conditions affect pottery surfaces. Data was gathered from four different firings, including three open-air dung firings and one wood-firing in an updraft kiln. Additional testing was carried out under controlled conditions in the laboratory. The aim was to further investigate and determine the specific thermal characteristics that influenced the burnished pottery and use the feedback to approach burnishing disturbance in traditional conditions.
The data showed that certain thermal profiles and characteristics cause a reduction in burnishing on ceramic surfaces, with the rise in temperature, among others, being a significant one. The type of clay also proved to be an important factor regarding the way in which the reduction in burnishing progresses. The present inquiry constitutes the first part of an ongoing research project that will be completed with Scanning Electron Microscopy (SEM) analysis of the microstructure and surface micromorphology of the ceramics.
Free access for 50 days - https://www.sciencedirect.com/science/article/pii/S2352409X2030451X?dgcid=author
A multianalytical approach based on petrographic and chemical analysis, supported by refiring tests and geological sampling,
has been employed to tackle issues of technology and provenance. Results shed light on patterns of raw material sources exploitation and pottery production and supply at the site over time.
The definitive version is available at http://dx.doi.org/10.101 /j.jasrep.2015.12.017
του Τμήματος Ιστορίας και Αρχαιολογίας του Πανεπιστημίου Κρήτης. Κύριο ζητούμενο της μελέτης ήταν ο προσδιορισμός της βασικής τεχνολογίας παραγωγής των υαλωμάτων και των χρωστικών μέσω της καταγραφής του στοιχειακού προφίλ τους, όπως αυτό ανιχνεύθηκε από την εξέταση των δειγμάτων που αναλύθηκαν εργαστηριακά. Στην παρούσα φάση έγινε αποκλειστικά ποιοτικός (στοιχειακός) προσδιορισμός του σώ-ματος των οστράκων, δηλαδή του πηλού. Τα δεδομένα που ελήφθησαν με τη μέθοδο LIBS για την εφυάλωση και τις χρωστικές είναι ποιοτικά και ημιποσοτικά.Τα 19 δείγματα της Συλλογής Μεσαιωνικής και Νεότερης Κεραμικής επιλέχθηκαν ως αντιπροσωπευτικά διαφορετικών κατηγοριών κεραμικής. Με δεδομένο το ζητούμενο της μελέτης, επιλέχθηκαν κυρίως όστρακα καλής ποιότητας, εφυαλωμένης κεραμικής, με εξαί-ρεση ένα όστρακο μαγειρικού σκεύους με εφυάλωση. Μετά την επιλογή του υλικού, που καλύπτει ένα ευρύ χρονικά φάσμα από τον 12ο αι. έως και τις αρχές του 20ού αιώνα, ακολούθησε μακροσκοπικός έλεγχος του σώματος των οστράκων με τη χρήση φακού μεγέθυνσης προκειμένου τα δείγματα να ομαδο-ποιηθούν λαμβάνοντας υπόψη και τα οπτικά-μακροσκοπικά χαρακτηριστικά του ίδιου του πηλού.