HCS MIMICS: 下総層群の潮汐堆積物と大阪層群の洪水氾濫堆積物
1993 年 39 巻 39 号 p. 27-34
詳細
1993 年 39 巻 39 号 p. 27-34
HCS (hummocky cross-stratification) mimics were discovered from Pleistocene tidal deposits (Shimosa Group) and fluvial flood deposits (Osaka Group). They closely resemble to HCS, except their small scale. These deposits indicate that waves are not likely mechanisms for the formation. Based on the facies and environmental setting, the HCS mimics were formed as three-dimensional antidunes with high suspended load. The discover of HCS mimics gave a new interpretation to the mechanisms of HCS formation.
