| Budget Amount *help |
¥13,780,000 (Direct Cost: ¥10,600,000、Indirect Cost: ¥3,180,000)
Fiscal Year 2015: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2014: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2013: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2012: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2011: ¥7,020,000 (Direct Cost: ¥5,400,000、Indirect Cost: ¥1,620,000)
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| Outline of Final Research Achievements |
Based on the chemical compositions, magnetic susceptibility, and size and other characteristics of the stone blocks and bricks used in the Angkor monument, the Sambor Prei Kuk monument, the Koh Ker monument and the Preah Vihear monument, we deduced the construction sequence. We found more than 100 quarries of the gray to yellowish brown sandstone used in the Angkor monument, and elucidated the transportation route of the sandstone blocks. In addition, we conducted the investigation of provenance of iron ores which were raw materials of iron used in the construction of the monuments. The surfaces of construction materials have blackened in the Khmer monuments. Most of this discoloring is caused by blue-green algae, but other black areas on the surface of construction materials are frequently observed. A non-destructive investigation revealed that this blackening was caused by manganese oxide precipitates.
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