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-1}
  1. F300 宇宙地球環境研究所
  2. F300b 紀要
  3. 名古屋大学加速器質量分析計業績報告書
  4. 27

フィリピン,ルソン島中央部のパイタン湖のコア試料の層序と古環境

https://doi.org/10.18999/sumrua.27.145
https://doi.org/10.18999/sumrua.27.145
bce7ac9e-c254-49f2-ad24-1cd54a981955
名前 / ファイル ライセンス アクション
145-150_2015.pdf 145-150_2015.pdf (4.5 MB)
Item type 紀要論文 / Departmental Bulletin Paper(1)
公開日 2016-07-20
タイトル
タイトル フィリピン,ルソン島中央部のパイタン湖のコア試料の層序と古環境
言語 ja
その他のタイトル
その他のタイトル Paleoenvironment and stratigraphy of cored sediments from Paitan Lake, Philippines
言語 en
著者 山崎, 圭二

× 山崎, 圭二

WEKO 84600

ja 山崎, 圭二

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鳥井, 真之

× 鳥井, 真之

WEKO 84601

ja 鳥井, 真之

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中西, 利典

× 中西, 利典

WEKO 84602

ja 中西, 利典

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バリソ, エリクソン

× バリソ, エリクソン

WEKO 84603

ja バリソ, エリクソン

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リベラ, ダニコ

× リベラ, ダニコ

WEKO 84604

ja リベラ, ダニコ

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リム, ロブジュネリエアア

× リム, ロブジュネリエアア

WEKO 84605

ja リム, ロブジュネリエアア

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ポガイ, キャシー

× ポガイ, キャシー

WEKO 84606

ja ポガイ, キャシー

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ダアグ, アルトロ

× ダアグ, アルトロ

WEKO 84607

ja ダアグ, アルトロ

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中村, 俊夫

× 中村, 俊夫

WEKO 84608

ja 中村, 俊夫

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ホン, ワン

× ホン, ワン

WEKO 84609

ja ホン, ワン

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鹿島, 薫

× 鹿島, 薫

WEKO 84610

ja 鹿島, 薫

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檀原, 徹

× 檀原, 徹

WEKO 84611

ja 檀原, 徹

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藤木, 利之

× 藤木, 利之

WEKO 84612

ja 藤木, 利之

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奥野, 充

× 奥野, 充

WEKO 84613

ja 奥野, 充

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Yamasaki, Keiji

× Yamasaki, Keiji

WEKO 84614

en Yamasaki, Keiji

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Torii, Masayuki

× Torii, Masayuki

WEKO 84615

en Torii, Masayuki

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Nakanishi, Toshimichi

× Nakanishi, Toshimichi

WEKO 84616

en Nakanishi, Toshimichi

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Bariso, Ericson B.

× Bariso, Ericson B.

WEKO 84617

en Bariso, Ericson B.

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Rivera, Danikko J.

× Rivera, Danikko J.

WEKO 84618

en Rivera, Danikko J.

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Lim, Robjunelieaaa B.

× Lim, Robjunelieaaa B.

WEKO 84619

en Lim, Robjunelieaaa B.

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Pogay, Cathy

× Pogay, Cathy

WEKO 84620

en Pogay, Cathy

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Daag, Arturo

× Daag, Arturo

WEKO 84621

en Daag, Arturo

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Nakamura, Toshio

× Nakamura, Toshio

WEKO 84622

en Nakamura, Toshio

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Hong, Wan

× Hong, Wan

WEKO 84623

en Hong, Wan

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Kashima, Kaoru

× Kashima, Kaoru

WEKO 84624

en Kashima, Kaoru

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Danhara, Tohru

× Danhara, Tohru

WEKO 84625

en Danhara, Tohru

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Fujiki, Toshiyuki

× Fujiki, Toshiyuki

WEKO 84626

en Fujiki, Toshiyuki

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Okuno, Mitsuru

× Okuno, Mitsuru

WEKO 84627

en Okuno, Mitsuru

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アクセス権
アクセス権 open access
アクセス権URI http://purl.org/coar/access_right/c_abf2
キーワード
主題Scheme Other
主題 Luzon Island
キーワード
主題Scheme Other
主題 Radiocarbon dating
キーワード
主題Scheme Other
主題 Diatom analysis
キーワード
主題Scheme Other
主題 Tephra
抄録
内容記述 Paitan Lake located on the northern part of Luzon Central Plain, is a tuff ring in the Amorong monogenic volcanoes. The lake has 0.8km^2-surface area, 38.5km^2-drainage basin, and one outflow-river with a few meter of width in the northern side. In order to establish the tephrostratigraphy in Luzon Island, the Philippines, two sediment cores, PPL-1 (13m in depth) and PPL-2 (28m in depth), were obtained from this lake. These cores consisted of two units: an upper alternating bed of mud layers and peaty layers in a depth range from 0 to 6m, and a lower dark mud bed from 6 to 28m. Seven tephra layers were observed in the cored sediments. Phenocryst assemblage implies that these are originated from Pinatubo volcano located ca. 90km SW from this lake. To detect cryptotephra, initial magnetic susceptibility was measured at 2-cm interval. Soft X-ray photographs were taken to interpret deformation structures during the drilling process. Radiocarbon dates of seven plant fragments and twelve organic sediments were measured by the AMS facility of KlGAM, the Institute of Accelerator Analysis Ltd. and ISEE of Nagoya University, respectively. Inferred age for four tephra horizons is consistent with previous dates for Pinatubo eruptions. To discuss paleoenvironment changes of this lake, diatom analysis with 20-cm intervals is conducted. Attached diatoms indicating marsh or peat land have emerged in cored sediments of 0 to 3m in depth with high CN ratio. From 3.2 to 28m in depth, the freshwater planktonic diatoms become dominant species and indicete freshwater lake environment. Aulacoseira granulate is dominant in 3.2 to 6m in depth, on the other hand, deeper part than 6.6m, Aulacoseira muzzanensis is dominant. Both species may indicate changes of water depth of the lake. Furthermore, only around 25m in depth, Cyclotella radiosa is dominant. At this horizon (ca. 20 cal kBP), organic carbon content and CN ratio also increase. This signal may indicate some event at Last Glacial Maximum (LGM).
言語 en
内容記述タイプ Abstract
抄録
内容記述 フィリピン,ルソン島のパイタン湖はAmorong単成火山群のタフリングで,閉鎖的な環境が持続されてきた.筆者らは,湖畔で深度28mのコア試料を採取し,珪藻群集分析,軟X線写真撮影,14C年代測定,火山灰分析,初磁化率測定,炭素・窒素含有量測定を行った.植物片7点と有機質堆積物12点の14C年代から,得られたコア試料は,最近約24,000年間を記録し,その堆積速度は 0.8~2.4m/kyrである.6 枚のテフラ層が検出され,岩石記載学的特徴からピナツボ火山が起源である.珪藻群集では,深度0~3mで付着性珪藻が出現し,沼沢もしくは泥炭地と推定された.3m以深は淡水浮遊性珪藻へと優占種が変化し,淡水湖沼環境であったことを示す.さらに深度6m付近でAulαcoseira granulateからAulacoseira muzzanensisへ優占種が変化した.最終氷期極相期(LGM)に当る深度25mでのみCyclotella radiosaが優占種となり,何らかのイベントを示すと考えられる.
言語 ja
内容記述タイプ Abstract
内容記述
内容記述 タンデトロン加速器質量分析計業績報告
言語 ja
内容記述タイプ Other
出版者
言語 ja
出版者 名古屋大学宇宙地球環境研究所年代測定研究部
言語
言語 jpn
資源タイプ
資源 http://purl.org/coar/resource_type/c_6501
タイプ departmental bulletin paper
出版タイプ
出版タイプ VoR
出版タイプResource http://purl.org/coar/version/c_970fb48d4fbd8a85
ID登録
ID登録 10.18999/sumrua.27.145
ID登録タイプ JaLC
書誌情報 ja : 名古屋大学加速器質量分析計業績報告書

巻 27, p. 145-150, 発行日 2016-03
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