COMPARISONS OF BEACH SAND COLORS AND THEIR RELATIONSHIPS WITH GEOLOGICAL FEATURES OF ADJACENT RIVER DRAINAGE AREAS

• TAMAI Masahiro

  大阪大学 大学院工学研究科地球総合工学専攻

• TSUJIMOTO Gozo

  神戸市立工業高等専門学校 都市工学科

Bibliographic Information

Other Title

• 砂浜の色彩の相対比較と近隣河川の流域地質との関係

Abstract

 Although sand colors have influences on a variety of functions, such as coastal landscapes and beach ecological systems, they have never been research subjects in the coastal engineering area. The purposes of the present study are to clarify color characteristics of sands which were collected at 23 beaches in Japan and to examine relationships between the color characteristics and geological features of river drainage areas which are adjacent to the beaches. PCA ordinations showed that the 23 beach sands colors can be well ordinated in a coordinate plane which has axes of brightness and of black to brown. It was confirmed that the brightness of the sand is well explained by area ratios of the felsic rock and of mafic rock, by examining the relationships between the beach sand colors and the igneous rocks.

Journal

• Journal of Japan Society of Civil Engineers, Ser. B3 (Ocean Engineering)

  Journal of Japan Society of Civil Engineers, Ser. B3 (Ocean Engineering) 68 (2), I_660-I_665, 2012

  Japan Society of Civil Engineers

Keywords

• Beach Sand
• Color Variations
• Geological Features
• Drainage Area
• Statistical Analysis

Details

• CRID: 1390001205353953664
• NII Article ID: 130004961587
• DOI: 10.2208/jscejoe.68.i_660
• ISSN: 21854688
• Text Lang: ja
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed