若狭湾西部の丹後海堆積物中の脂質組成と分布

IR HANDLE Web Site

Bibliographic Information

Other Title
  • ワカサワン セイブ ノ タンゴカイ タイセキブツ チュウ ノ シシツ ソセイ ト ブンプ
  • Lipid Compounds and Distribution in Sediments from Tango-kai Bay of western part of Wakasa Bay

Search this article

Description

Sediment samples from Tango-kai bay of the western part of Wakasa bay were analyzed for mud contents, CaCO_3, organic C, N, δ^<13>C and lipid compounds. Surveyed area are divided into 5 areas, that is, river mouth, bay head, mid bay, bay coast and strait. Land derived organic matter in the sediments are 47.1～91.4% at the bay head of Tango-kai bay and 31.4%, 37.1% at the mid bay of Wakasa bay. The contents of n-alkanes are high in the sediments at the Yura river, bay head and mid bay. The distribution pattern of L/H (L≦C_<20>, H≧C_<21>) of n-alkanes is different from the distribution pattern of δ^<13>C. The concentrations of dinosterol (a) are large in the silt from the bay head and the silty sand from the mid bay and strait. The distribution pattern β-sitosterol is similar to the distribution pattern of δ^<13>C. In a triangular diagram of C_<27>, C_<28>, C_<29>-sterols, the sediments of the strait and mid bay are plotted on open marine. The sediments of the river mouth and bay head are plotted on estuarine or bay.

Journal

Details 詳細情報について

Report a problem

Back to top