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Hefni, Y. (2021). STUDY AND CHARACTERIZATION OF XENOLITHIC STRUCTURES TRAPPED IN GRANITIC MONUMENTS: A CASE STUDY. Egyptian Journal of Archaeological and Restoration Studies, 11(1), 39-46. doi: 10.21608/ejars.2021.179495
Yasser Kamal Hefni. "STUDY AND CHARACTERIZATION OF XENOLITHIC STRUCTURES TRAPPED IN GRANITIC MONUMENTS: A CASE STUDY". Egyptian Journal of Archaeological and Restoration Studies, 11, 1, 2021, 39-46. doi: 10.21608/ejars.2021.179495
Hefni, Y. (2021). 'STUDY AND CHARACTERIZATION OF XENOLITHIC STRUCTURES TRAPPED IN GRANITIC MONUMENTS: A CASE STUDY', Egyptian Journal of Archaeological and Restoration Studies, 11(1), pp. 39-46. doi: 10.21608/ejars.2021.179495
Hefni, Y. STUDY AND CHARACTERIZATION OF XENOLITHIC STRUCTURES TRAPPED IN GRANITIC MONUMENTS: A CASE STUDY. Egyptian Journal of Archaeological and Restoration Studies, 2021; 11(1): 39-46. doi: 10.21608/ejars.2021.179495

STUDY AND CHARACTERIZATION OF XENOLITHIC STRUCTURES TRAPPED IN GRANITIC MONUMENTS: A CASE STUDY

Article 5, Volume 11, Issue 1, June 2021, Page 39-46  XML PDF (1.34 MB)
Document Type: Original Article
DOI: 10.21608/ejars.2021.179495
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Author
Yasser Kamal Hefni
Conservation Dept., Faculty of Archaeology and Tourism Guidance, Misr University for Science & Technology, Egypt
Abstract
Xenolithic structures are considered to be natural defects in the
igneous rocks that highly affect their physicochemical and mechanical
properties. They are foreign rock fragments trapped in the magma
or lava during the cooling process. They are totally unrelated to the
igneous rocks, as they compose from different types of rock pieces
that enclosed in the monumental granites during their emplacement.
This paper aims to study and characterize the xenolith fragment
trapped in the studied granitic obelisk. The analytical study was
carried out using different techniques such as polarizing microscope,
x-ray diffraction, scanning electron microscope, EDS elemental
analysis and BET surface area. The results clarified that the studied
xenolith fragment is classified as biotite schist xenolith. In addition, it
was observed that the xenolith fragment not only affects the
aesthetic appearance of the studied granitic obelisk but also it
represents a serious weakness point in its structure.
Keywords
Xenolith; Schist; Granite; Obelisk; Schistosity
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