Summary of the excavation and related research on a Sue ware kiln site cluster in Nakadake Sanroku, South Japan, 2013–2015 (original) (raw)

2015, Studies on the Nakadake Sanroku Kiln Site Cluster

Research History and historical background of the Nakadake Sunroku Kiln Site Cluster and summary of results from excavation, prospections and analyses between 2012 and 2015. In Japanese and English.

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Investigation of the Remains of a Boiler House in Maizuru 3RD Naval Explosives Arsenal

AIJ Journal of Technology and Design

We carried out excavation of the remains of a boiler house in Maizuru 3rd Naval Explosives Arsenal. This investigation consists of measurement of the remains, performance evaluation of concrete, and estimating construction method. As a result, it was estimated that the boiler house was consisted of reinforced concrete foundations/walls, plain concrete floor, and some members from plain or fire bricks. On the other hand, the performance of concrete used for the remains was standard compared with the technical standards during World War II. These results will contribute to the grasp and the evaluation of the then architectural technology and design.

Geology of the Miocene Hokusetsu Subgroup (lower Shitara Group) in the Yatsuhashi area, Shitara Town, Aichi Prefecture, central Japan

BULLETIN OF THE GEOLOGICAL SURVEY OF JAPAN, 2003

The geology of the Yatsuhashi area in Shitara Town, Aichi Prefecture has been investigated to draw the distribution of clastic sediments of the Lower Miocene Hokusetsu Subgroup (lower part of the Shitara Group). A 5.5 km x 4 km area has been mapped in detail. The clastic sediments are lithologically divided into four formations: from base to top, the Taguchi Formation (dominantly coarse-grained clastics such as ill-sorted breccia and conglomerate), the Kawakado Formation (dominantly sandstone), the Ohno Formation (dominantly mudstone), and the Kadoya Formation (felsic tuff and tuffaceous clastics). An overall upward-fining sequence characterizes this subgroup. The coarse clastics of the Taguchi Formation are mostly fluvial and debris-flow deposits and in minor amounts are probably of talus origin. These clastics fill past-valleys incised into pre-Tertiary basement, resulting in an irregular distribution. On the other hand, the other formations are made of wellbedded marine sediments, the distribution being not complex. The Hokusetsu Subgroup is covered unconformably by volcanic rocks of the Middle Miocene Nansetsu Subgroup (upper part of the Shitara Group). In the eastern part of the mapped area, intermediate to mafic volcanic intrusions form a north-south striking dike swarm.

Simultaneity and similarity of the Muro Pyroclastic Flow Deposit and the Kumano Acidic Rocks in Kii Peninsula, southwest Japan, based on fission track ages and morphological characteristics of zircon

The Journal of the Geological Society of Japan, 2007

central to southeastern region of the Kii Peninsula. The resulting ages of all these samples and previously reported ages of the Tamateyama Tuff, the Nakaoku Tuffite Dike and the Shionomisaki Igneous Complex in the peninsula were clustering at Ma. Most of the above igneous bodies contain a mixture of reddish and colorless zircons. Characteristic of the mixed zircons from the Muro Pyroclastic Flow Deposit, Sekibutsu Tuff, Tamateyama Tuff and the north and south units of the Kumano Granite Porphyry is similar in terms of a ratio of reddish and colorless zircons being : , and dominant crystal planes for reddish and for colorless. Based on the simultaneity and similarity of the mixed zircons, it is strongly suggested that the Muro Pyroclastic Flow Deposit and the adjacent tuffs in the northern Kii Peninsula are correlated with each other as a large-scale pyroclastic flow deposit at Ma, and that its possible source is the Kumano Acidic Rocks in the southeastern Kii Peninsula.

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