| About this Abstract |
| Meeting |
Materials Science & Technology 2020
|
| Symposium
|
Art and Cultural Heritage: Discoveries and Education
|
| Presentation Title |
Naturally Altered Glass: Methods and Challenges of Modeling Long-term Glass Alteration Environments |
| Author(s) |
Jamie Lynn Weaver |
| On-Site Speaker (Planned) |
Jamie Lynn Weaver |
| Abstract Scope |
Glass artifacts can be exposed to natural environments for extended periods of time before being accessioned into a collection. This exposure can alter a glass surface and near-surface volume, a feature which can make the development of a long-term storage and stabilization plan challenging. Gaining an understanding of what could have contributed to the alteration layers’ formation (i.e. agents of change) as well as both the resulting structure and chemistry of the layer(s) may help streamline this planning process. In this presentation, a reverse engineering approach for natural glass alteration environments that accounts for biotic and abiotic alteration agents will be outlined. Current models of glass alteration will be discussed and placed in the context of cultural property risk assessment methods. Challenges and successes of applying these methods will be presented along with examples of execution as relating to two case studies: ancient Roman and pre-Viking hillfort glasses. |