Depositional facies and radiocarbon ages of a drill core from the Mekong River lowland near Phnom Penh, Cambodia: evidence for tidal sedimentation at the time of Holocene maximum flooding

塚脇, 真二; Tamura, Toru; Saito, Yoshiki; Sieng, Sotham; Ben, Bunnarin; Kong, Meng; Choup, Sokuntheara; Tsukawaki, Shinji

doi:https://doi.org/10.1016/j.jseaes.2006.03.009

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Depositional facies and radiocarbon ages of a drill core from the Mekong River lowland near Phnom Penh, Cambodia: evidence for tidal sedimentation at the time of Holocene maximum flooding

https://doi.org/10.24517/00029292

名前 / ファイル	ライセンス	アクション
CambodiaKScore.pdf (1.0 MB)

Item type

学術雑誌論文 / Journal Article(1)

公開日

2017-10-05

タイトル

Depositional facies and radiocarbon ages of a drill core from the Mekong River lowland near Phnom Penh, Cambodia: evidence for tidal sedimentation at the time of Holocene maximum flooding

言語

eng

資源タイプ

資源タイプ識別子

http://purl.org/coar/resource_type/c_6501

資源タイプ

journal article

ID登録

10.24517/00029292

ID登録タイプ

JaLC

著者

Tamura, Toru
Saito, Yoshiki

Sieng, Sotham
Ben, Bunnarin
Kong, Meng
Choup, Sokuntheara

Tsukawaki, Shinji

WEKO 15862
e-Rad 00222133
金沢大学研究者情報 00222133
研究者番号 00222133

	Tsukawaki, Shinji

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著者別表示

塚脇, 真二

書誌情報

Journal of Asian Earth Sciences

巻 29, 号 5-6, p. 585-592, 発行日 2007-03-01

ISSN

収録物識別子タイプ

ISSN

収録物識別子

1367-9120

DOI

識別子タイプ

DOI

出版者

Elsevier

抄録

内容記述タイプ

Abstract

内容記述

The depositional facies and radiocarbon ages of a long Holocene sediment core (KS)　from Cambodia are reported here to clarify the sedimentary environments of the Mekong River delta system at the time of Holocene maximum flooding by the sea. The 30.7-m-long KS core, from the upper Mekong River lowland about 20 km southeast of Phnom Penh, penetrated five depositional facies, A to E in ascending order. Facies A is cross-laminated fluvial sand. Facies B is laminated, very fine sand with mud drapes.Facies C to E are salt marsh, flood-plain and natural-levee deposits, characterized by a succession of peat, organic clay, and reddish brown silt. Facies B dates to 9.0 to 7.5 ka and is interpreted as aggradational tidal deposits, 16.5 m thick, deposited during a rapid rise of sea level; these deposits became overlain by an accumulation of salt marsh and flood-plain deposits during the subsequent period of slowly rising and then falling sea level. The maximum flooding surface lies in the Facies B interval. The presence of tidal deposits implies that the core site, about 230 km inland from the present river mouth, was near the shoreline and experienced strong tidal influences during the early Holocene.© 2006 Elsevier Ltd. All rights reserved.

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Depositional facies and radiocarbon ages of a drill core from the Mekong River lowland near Phnom Penh, Cambodia: evidence for tidal sedimentation at the time of Holocene maximum flooding

× Tamura, Toru

× Saito, Yoshiki

× Sieng, Sotham

× Ben, Bunnarin

× Kong, Meng

× Choup, Sokuntheara

× Tsukawaki, Shinji

× 塚脇, 真二

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