Radiocarbon dating, sedimentation rate, granulometry and organic carbon content of ODP Leg 182 sites

This data report presents sedimentological (grain size) and geochemical (X-ray diffraction, total organic carbon, accelerator mass spectrometry radiocarbon, and percent carbonate) information obtained from the western transect (Sites 1132, 1130, and 1134) and the eastern transect (Sites 1129, 1131, and 1127) in the Great Australian Bight during Leg 182. The purpose is to quantify changing rates of sediment accumulation and changes in sediment type from the late Pleistocene and Holocene, in order to relate these changes to the well-known sea level curve that exists for this time frame. Ultimately, these data can be used to more effectively interpret lithologic variations deeper in the Pleistocene succession, which most likely represent orbitally forced sea level events.

本数据报告呈现了大洋钻探第182航次（Leg 182）期间，于大澳大利亚湾（Great Australian Bight）西部断面（站位1132、1130与1134）及东部断面（站位1129、1131与1127）采集获得的沉积学（粒度）与地球化学数据，其中地球化学指标涵盖X射线衍射（X-ray diffraction）、总有机碳、加速器质谱碳十四测年及碳酸盐含量。本研究旨在量化晚更新世至全新世时期沉积堆积速率的变化与沉积物类型的转变，并将上述变化与该时段公认的海平面曲线建立关联。最终，本数据集可用于更高效地解析更新世沉积序列深部的岩性变化，此类岩性变化大概率对应轨道驱动的海平面事件。