Organic geochemistry on surface sediment samples from the Beaufort Sea

All sea-floor samples are from the upper 3-cm sediment layer collected by either Van Veen grabs, HAPS or gravity cores所有海底样品均采自表层3厘米沉积物层，采集工具包括范维恩采泥器（Van Veen grabs）、HAPS或重力柱状取样器（gravity cores）