青藏高原若尔盖盆地RH孔沉积有机质的 δ 13 C值和氢指数记录

Science in China. Series B, Chemistry, life sciences & earth sciences Pub Date : 1995-06-10 DOI:10.1360/ZB1995-25-6-631

张平中, 王先彬, 陈践发, 李春园, 王苏民

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引用次数: 0

摘要

若尔盖盆地RH孔沉积物中总有机碳含量与氢指数有良好的相关性,而且当总有机碳含量和氢指数同时降低时,总有机碳的 δ 13 C值随着偏正,指示了湖泊沉积物的陆上暴露或接近水面.据此将RH孔沉积划分为23个气候波动阶段,其中12个暖湿阶段和11个干冷阶段,并与深海沉积氧同位素阶段、黄土沉积剖面和极地冰芯记录进行了全球对比.

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青藏高原若尔盖盆地RH孔沉积有机质的 δ 13 C值和氢指数记录

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Science in China. Series B, Chemistry, life sciences & earth sciences

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