Geochemistry of Lau Backarc Basin sediments@en
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Major and minor (Mn, Sr, Ba, V, Cr, Ni, Co, Zn, Cu, Zr, Y, Sc) elements and mineralogic compositions were determined on bulk sediments collected during Ocean Drilling Program Leg 135. Three classes of sediment samples from holes drilled in the Lau Basin are discriminated by mineralogy and major element data. Samples labeled Class 1 are significantly enriched in biogenic calcite and occur predominantly in the northern part of the basin (Sites 834-835), whereas those of Class 3 are mostly enriched in volcanogenic material and are predominant in the central part of the basin (Sites 836-839). […]
本数据集针对大洋钻探计划（Ocean Drilling Program）第135航次采集的全沉积物，完成了其中常量元素与微量元素（包括锰（Mn）、锶（Sr）、钡（Ba）、钒（V）、铬（Cr）、镍（Ni）、钴（Co）、锌（Zn）、铜（Cu）、锆（Zr）、钇（Y）、钪（Sc））及矿物组成的测定。研究人员依据矿物学特征与常量元素数据，将劳盆地（Lau Basin）钻孔采集的沉积物样品划分为三类。其中，1类样品显著富集生物成因方解石，主要分布于该盆地北部海域（站位834~835）；3类样品则以富集火山成因物质为典型特征，集中分布于盆地中部海域（站位836~839）。[…]
