Gakujutsu Kenkyu (Academic Studies and Scientific Research) , 2018
Geographical survey of Sambor Prei Kuk Archaeological Site started in 1999 by S. Kubo in cooperat... more Geographical survey of Sambor Prei Kuk Archaeological Site started in 1999 by S. Kubo in cooperation with late Dr. Y. Kojo (archaeology), Prof. T. Nakagawa (Architecture) and Cambodian Ministry of Culture and Fine Arts. N. Nagumo joined from 2004. Our main results are as follows: 1) Monuments and relics were mapped by using aerial photos and ground reconnaissance with GPS. 2) Geomorphological map of the area was made by interpreting of stereo pairs of aerial photos and ground survey. 3) Stratigraphy of subsurface deposits was researched by manual and mechanical drillings. 4) Landform evolution of the Stung Sen River lowland was revealed by drillings and radiocarbon (14 C) dating of deposits. 5) Archaeological stratigraphy was detected by radiocarbon dating of samples. 6) We published these results in international journals.
The Bulletin of the Graduate School of Education of Waseda University, 2016
The Sambor Prei Kuk archaeological site in central Cambodia is known as one of the primary cultur... more The Sambor Prei Kuk archaeological site in central Cambodia is known as one of the primary cultural and political centers of the Pre-Angkor Period in Indochina. The main part of the site is situated on a sandy upland along the Stung Sen River floodplain and is divided into the city area and temple area by the O Krou Ke River (creek). The temple area comprises the three major walled complexes of Prasat Sambor, Prasat Tao, and Prasat Yeai Pouen and a number of Hindu brick towers. The city area is demarcated by moats, which are found in the west of temple area. This archaeological site is considered the ancient capital city of Chenla called Isanapura and constructed by King Isanavarman I in the early seventh century, as described in the Chinese ancient chronicle of Sui-shu. However, investigations thus far have mainly targeted temple complexes, whereas clear evidence exhibiting the prosperity or chronological framework of the archaeological site has been scarcely reported. In February ...
The Hiroshima Delta is formed at the mouth of Ota River in western Japan. We conducted the grain ... more The Hiroshima Delta is formed at the mouth of Ota River in western Japan. We conducted the grain analyses and radiocarbon dating of uppermost deposit of delta, along with detailed geomorphological mapping. Grain analyses showed that particles in the uppermost part are of granitic origin, while lower part are of accretionary prism origin. Iron slag particles are confirmed in the uppermost part. Radiocarbon ages suggest they deposited after the 15th century. Geomorphological features of the lower Ota River plain show the development of sandy deposits. We concluded that the iron-sand mining and smelting in the upper reach caused rapid growth of the Hiroshima Delta.
20 Kubo, S./Rev. Geogr. Acadêmica v. 2 n. 1 (vi. 2008) 20-32 GEOMORPHOLOGICAL FEATURES AND SUBSUR... more 20 Kubo, S./Rev. Geogr. Acadêmica v. 2 n. 1 (vi. 2008) 20-32 GEOMORPHOLOGICAL FEATURES AND SUBSURFACE GEOLOGY OF THE LOWER MEKONG PLAIN AROUND PHNOM PENH CITY, CAMBODIA (SOUTHEAST ASIA) Sumiko Kubo Department of Geography, Waseda ...
Gakujutsu Kenkyu (Academic Studies and Scientific Research) , 2018
Geographical survey of Sambor Prei Kuk Archaeological Site started in 1999 by S. Kubo in cooperat... more Geographical survey of Sambor Prei Kuk Archaeological Site started in 1999 by S. Kubo in cooperation with late Dr. Y. Kojo (archaeology), Prof. T. Nakagawa (Architecture) and Cambodian Ministry of Culture and Fine Arts. N. Nagumo joined from 2004. Our main results are as follows: 1) Monuments and relics were mapped by using aerial photos and ground reconnaissance with GPS. 2) Geomorphological map of the area was made by interpreting of stereo pairs of aerial photos and ground survey. 3) Stratigraphy of subsurface deposits was researched by manual and mechanical drillings. 4) Landform evolution of the Stung Sen River lowland was revealed by drillings and radiocarbon (14 C) dating of deposits. 5) Archaeological stratigraphy was detected by radiocarbon dating of samples. 6) We published these results in international journals.
The Bulletin of the Graduate School of Education of Waseda University, 2016
The Sambor Prei Kuk archaeological site in central Cambodia is known as one of the primary cultur... more The Sambor Prei Kuk archaeological site in central Cambodia is known as one of the primary cultural and political centers of the Pre-Angkor Period in Indochina. The main part of the site is situated on a sandy upland along the Stung Sen River floodplain and is divided into the city area and temple area by the O Krou Ke River (creek). The temple area comprises the three major walled complexes of Prasat Sambor, Prasat Tao, and Prasat Yeai Pouen and a number of Hindu brick towers. The city area is demarcated by moats, which are found in the west of temple area. This archaeological site is considered the ancient capital city of Chenla called Isanapura and constructed by King Isanavarman I in the early seventh century, as described in the Chinese ancient chronicle of Sui-shu. However, investigations thus far have mainly targeted temple complexes, whereas clear evidence exhibiting the prosperity or chronological framework of the archaeological site has been scarcely reported. In February ...
The Hiroshima Delta is formed at the mouth of Ota River in western Japan. We conducted the grain ... more The Hiroshima Delta is formed at the mouth of Ota River in western Japan. We conducted the grain analyses and radiocarbon dating of uppermost deposit of delta, along with detailed geomorphological mapping. Grain analyses showed that particles in the uppermost part are of granitic origin, while lower part are of accretionary prism origin. Iron slag particles are confirmed in the uppermost part. Radiocarbon ages suggest they deposited after the 15th century. Geomorphological features of the lower Ota River plain show the development of sandy deposits. We concluded that the iron-sand mining and smelting in the upper reach caused rapid growth of the Hiroshima Delta.
20 Kubo, S./Rev. Geogr. Acadêmica v. 2 n. 1 (vi. 2008) 20-32 GEOMORPHOLOGICAL FEATURES AND SUBSUR... more 20 Kubo, S./Rev. Geogr. Acadêmica v. 2 n. 1 (vi. 2008) 20-32 GEOMORPHOLOGICAL FEATURES AND SUBSURFACE GEOLOGY OF THE LOWER MEKONG PLAIN AROUND PHNOM PENH CITY, CAMBODIA (SOUTHEAST ASIA) Sumiko Kubo Department of Geography, Waseda ...
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