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Browsing Department of Environmental Technology by Author "Ishiga, Hiroaki"

Now showing items 1-9 of 9

Assessment of dam removal from geochemical examination of Kuma River sediment, Kyushu, Japan

Young, Sansfica M.; Ishiga, Hiroaki (Springer International Publishing Switzerland, 2014)

The aim of this study was to determine if Arase dam gate removal and flushing elevated concen trations of any trace elements in Kuma River and Yatsushiro Bay sediments or caused riverine environ mental change. The Arase ...
Environmental change of the fluvial-estuary system in relation to Arase Dam removal of the Yatsushiro tidal flat, SW Kyushu, Japan

Young, Sansfica M.; Ishiga, Hiroaki (Springer-Verlag Berlin Heidelberg, 2014)

Chemical composition of 24 elements for sed iments and suspended solids, water parameters and the diatoms from Yatsushiro Bay tidal flat, Kuma River, and Arase Dam have been determined to examine changes from 2002 to ...
Geochemical characteristics of stream sediments, sediment fractions, soils, and basement rocks from the Mahaweli River and its catchment, Sri Lanka

Young, Sansfica M.; Pitawala, Amarasooriya; Ishiga, Hiroaki (2013)

Geochemical variations in stream sediments (n = 54) from the Mahaweli River of Sri Lanka have been evaluated from the viewpoints of lithological control, sorting, heavy mineral concentration, influence of climatic zonation ...
Geochemical evaluation of the effect of tidal flat environment by fluvial flooding in the Miyagawa River mouth estuary, Ise area, Mie Prefecture Japan

Ishiga, Hiroaki; Sakaya, Megumi; Sakamoto, Miyako; Hasegawa, Mika; Young, Sansfica M.; Diallo, Ibrahima M’bemba (2012)
Geochemistry of sediments in three sectors of Trincomalee Bay, Sri Lanka: provenance, modifying factors and present environmental status

Young, Sansfica M.; Ishiga, Hiroaki; Roser, Barry P.; Pitawala, Amarasooriya (Springer-Verlag Berlin Heidelberg, 2013)

Purpose The geochemical compositions of sediments from three sectors in Trincomalee Bay (Koddiyar Bay, Thambalagam Bay and the Inner Harbour) in Sri Lanka were examined to determine fluvial and marine contributions and ...
Major and trace element geochemistry of beach sands from northern Kyushu, Japan.

Malick, B.M.L.; Young, Sansfica M.; Ishiga, Hiroaki (2012)
New Perception to Proto History Burial Site in Andarawewa An Archaeological and Geochemical Prospection

Young, Sansfica M.; Mendis, D. Thusitha; Ishiga, Hiroaki (2020)

The megalithic burial site at Galgamuwa Andarawewa is situated at Anamaduwa Secretariat Division in the North Western Province, Sri Lanka. It is evident that 2500 years ago the proto history people had settled in this ...
Reading the archaeometallurgical fndings of Yodhawewa site, Sri Lanka: contextualizing with South Asian metal history

Wijepala, W. M. T. B.; Young, Sansfica M.; Ishiga, Hiroaki (Jilin University and Springer Nature Singapore, 2022)

This study aimed to provide a chronological interpretation of the Yodhawewa settlement and interpret metalworking activities based on artifacts representing metallurgical technology in Sri Lanka and South Asia. The research ...
Spatial variations in recent ostracode assemblages and bottom environments in Trincomalee Bay, northeast coast of Sri Lanka

Iwatani, Hokuto; Young, Sansfica M.; Irizuki, Toshiaki; Sampei, Yoshikazu; Ishiga, Hiroaki (2014)

Trincomalee Bay is situated on the northeast coast of Sri Lanka. This is the first study to report the recent ostracode assem blages in this bay. As a result, at least 36 ostracode taxa were identified from surface sediments ...

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