書誌事項
- タイトル別名
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- Stable carbon isotopic compositions of cholesterol in fossil bone of marine mammal for palaeodietary study
- コッカセキ チュウ ノ コレステロール ノ タンソ ドウイタイ ソセイ オ モチイタ カイセイホニュウルイ ノ コ ショクセイ カイセキ ノ ケンキュウ
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抄録
Dietary preferences of archaeological and paleontological animals have been conventionally investigated by stable carbon isotope ratio (δ13C) of collagen and tooth enamel in the fossil remains. However, no collagens in bones and teeth are generally preserved in fossil remains deposited older than million-order ages ago. On the other hand, it is known that lipids such as cholesterol and its diagenetic products are usually preserved in ancient fossil material. Therefore, the carbon isotope ratio of cholesterol (including its diagenetic products) in bones has been recently applied as alternative approach for reconstructing palaeodietary of animals. The advantages of this approach are that: (1) the δ13C value of cholesterol is correlated with that of bulk diet, (2) cholesterol can be detected from fossil bones older than million-order ages, (3) its diagenetic products such as cholestane do not occur naturally in skin lipids and soils. This paper reviews aspects of the carbon isotope signatures of bone cholesterol as a source of dietary information, and compared those to the conventional palaeodietary approaches by using the isotope analysis of bulk collagen and enamel.
収録刊行物
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- Researches in Organic Geochemistry
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Researches in Organic Geochemistry 27 (0), 23-32, 2011
日本有機地球化学会
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詳細情報 詳細情報について
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- CRID
- 1390282680390533760
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- NII論文ID
- 110008749808
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- NII書誌ID
- AA11889471
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- ISSN
- 21897891
- 13449915
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- NDL書誌ID
- 11272989
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
- CiNii Articles
- KAKEN
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- 抄録ライセンスフラグ
- 使用不可