A simple and robust procedure for coring unconsolidated sediment in shallow water

作者：Adachi Hiroshi; Yamano Hiroya^*; Miyajima Toshihiro; Nakaoka Masahiro

来源：Journal of Oceanography, 2010, 66(6): 865-872.

DOI：10.1007/s10872-010-0070-4

• Coring system
• sand bar
• tidal flat
• seagrass bed

This article describes a simple, quick, and inexpensive procedure for coring unconsolidated sediment in shallow water (< 30 m from water surface). A similar to 1 m core is retrieved by a PVC pipe that penetrates sediment in response to the percussive force of a hand-operated hammering tool or air hammer. After retrieving the first core segment, a casing is inserted to allow access to deeper sediment layers. Pulverized sediment produced during coring is removed by a water-lubrication system that is powered by an electric pump attached to a generator. Using this system and procedure, five 2-m-long cores with excellent quality were retrieved.

• 出版日期2010-12