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Magnetic mineral diagenesis in the river-dominated inner shelf of the East China Sea, China ArchiMer
Ge, Can; Zhang, Weiguo; Dong, Chenyin; Dong, Yan; Bai, Xuexin; Liu, Jinyan; Thi Thu Hien, Nguyen; Feng, Huan; Yu, Lizhong.
The inner shelf of the East China Sea is a river-dominated margin characterized by fine-grained mud deposits and a rapid sedimentation rate. Three short sediment cores (similar to 2.7m in length) were examined to characterize spatial variations in magnetic mineral diagenesis. The sediment cores were analyzed for sedimentation rates, magnetic properties, particle size distribution, organic carbon, and total sulfur content. The two more proximal cores with higher sedimentation rates (similar to 2.2cm/yr and similar to 0.96cm/yr) do not exhibit obvious effects of reductive dissolution of magnetite with increasing depth, which is consistent with their lower total sulfur content. The offshore core, A12-4, which has a lower sedimentation rate, contains clear...
Tipo: Text Palavras-chave: Magnetic properties; Diagenesis; Organic matter reactivity; Sedimentation rate; River-dominated margin; East China Sea.
Ano: 2015 URL:
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