Holocene marine terraces and crustal movements on the northern coast of Kagoshima Bay, southern Japan

Abstract

Holocene marine terraces are widely distributed around the northern part of Kagoshima Bay, consisting of Aira caldera. In this paper, we examine the relation of the highest marine terrace, called Hayato surface to Holocene upwarping of Aira caldera on the basis of the altitude distribution, the deposits and the ages of the formation using tephra, C-14 dates and archaeological remains. The altitude distribution of Hayato surface fairly matches the mode of upwarping of Aira caldera deduced from the past sea-level remnants.