A new Miocene whale-fall community from Japan

被引：47

作者：

Amano, Kazutaka

Little, Crispin T. S.

Inoue, Kiyokazu

机构：

[1] Joetsu Univ Educ, Dept Geosci, Niigata 9438512, Japan

[2] Univ Leeds, Sch Earth & Environm, Leeds LS2 9JT, W Yorkshire, England

[3] Tokachi Nat Hist Res Grp, Obihiro, Hokkaido, Japan

来源：

PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY | 2007年 / 247卷 / 3-4期

关键词：

Miocene; wale-fall community; Nupinai Formation; Hokkaido;

D O I：

10.1016/j.palaeo.2006.10.017

中图分类号：

P9 [自然地理学];

学科分类号：

0705 ; 070501 ;

摘要：

Whale bones with associated molluscs have been found in a carbonate concretion in the late middle Miocene Nupinai Formation of eastern Hokkaido, Japan. The concretion contains volcaniclastic grains, pyrite and authigenic carbonate and quartz cements. Pyrite also coats and occurs within bone fragments, which are corroded and partially bored. The whale bone associated molluscs are the bivalves Vesicomya kawadai (Aoki), Vesicomya sp., Calyptogena chitanii (Kanchara), Conchocele bisecta (Conrad) and Adipicola sp., and the gastropod Provanna? sp. These species represent a whale-fall community in the sulphophilic ecological stage. The Nupinai Formation community shares genera and species with contemporary whale-fall and cold-seep assemblages, which suggests there was a regional pool of molluscs that could utilize both seeps and whale-falls in the NW Pacific during the Miocene. It is possible that during this time sedimentation rate had a control on species composition at contemporary whale-fall sites. (C) 2006 Elsevier B.V All rights reserved.

引用

页码：236 / 242

页数：7

共 27 条

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