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Changes in the relative proportions of biogenic material and terrigenous material in the total sediment flux for Guaymas Basin. These seasonal changes in the composition of the sediment flux result in the deposition of laminae on the seafloor. The high flux of biogenic material from late fall through spring produces the light laminae. In contrast, dark laminae form during the summer when the sediment flux carries high concentrations of terrigenous material[back]
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