Sediment Core Analysis Timor Sea Voyage SS06/2005

In June 2005, the Southern Surveyor Research Vessel commenced a trip to the Timor Sea region. This dataset contains 9 sediment cores and grab samples analysis collected on this voyage. This dataset relates to the objectives (as outlined in the Voyage Summary SS06/2005):

1. Discover seeps of methane, oil, and brines on the seafloor, using wheelhouse sounder showing bubble plumes, seismic transects, swath mapping, surface and near bottom water sampling, and sediment coring tools. Gas chromatographic measurements of methane in water will be done in the ship laboratory.

2. Obtain sediment cores from soft and hard bottom seafloor, and subsample the cores carefully for hydrocarbon and inorganic chemical measurements, and preserve samples for analyses in our home laboratories.

3. Obtain samples of relict and living biota from the seafloor in association with submarine seeps, using sled dredges, rock dredges, Smith-MacIntyre Grab, and near-bottom water samples.

Chemical analysis for organic and inorganic carbon, N P and other elements were undertaken to estimate the rate of sediment accumulation, trace elements, geochemical composition of sediment and burial rate of organic and carbonate carbon.

Further information and data regarding this voyage have been archived within the CSIRO Marine and Atmospheric Research Data Centre, including data from ADCP deployments, CTD Profiles, Hydrology, Underway and Multibeam echosounder data. A link to the CSIRO Data Protal is availalbe in the Related Information section below.

2005年6月，南方探索者号科考船（Southern Surveyor Research Vessel）启程前往帝汶海（Timor Sea）海域执行航次任务。本数据集涵盖本次航次采集的9份沉积物岩芯与抓斗采样样品的分析结果。本数据集对应航次摘要SS06/2005中列明的三大科考目标：
1. 借助驾驶室测深仪识别气泡羽流、地震剖面、条带测绘、表层及近底层水样采集与沉积物岩芯采集设备，探寻海底甲烷、石油与卤水渗漏点；水体中的甲烷含量将通过气相色谱法在船载实验室完成测定。
2. 从软质与硬质海底获取沉积物岩芯，并对岩芯进行精细分样以开展烃类与无机化学成分测定，同时留存部分样品用于后续岸基实验室分析。
3. 利用拖网采泥器、岩石拖网、史密斯-麦金泰尔抓斗（Smith-MacIntyre Grab）及近底层水样采集装置，采集与海底渗漏相关的残遗生物与活体生物样品。

本次分析涵盖有机碳、无机碳、氮、磷及其他元素的化学检测，用于估算沉积物沉积速率；同时开展微量元素检测、沉积物地球化学组成分析，以及有机碳与碳酸盐碳的埋藏速率测算。

本次航次的相关补充信息与数据已归档至CSIRO海洋与大气研究数据中心，涵盖声学多普勒流速剖面仪（ADCP）部署数据、温盐深（CTD）剖面数据、水文数据、走航观测数据及多波束测深仪数据。下文“关联信息”板块中提供了CSIRO数据门户（CSIRO Data Portal）的访问链接。