marine sediment metagenome Targeted Locus (Loci)

Abyssal sediments, polymetallic nodules, and water-column samples were collected from the UKSRL1, OMS claim area as well as APEI within the Clarion-Clipperton fracture zone in the Pacific Ocean. The ABYSSLINE 2015 Cruise took place aboard the research vessel Thomas G. Thompson (R/V Thompson) between February 12, 2015 and March 25, 2015, as an expedition jointly funded and supported by Seabed Resources Limited and Ocean Mineral Singapore. The chief objective of the AB02 was to conduct an evaluation of biological and environmental baseline conditions in the UK-1 contract area, and the OMS contract area at depths ranging from 3900 to 4400 meters (m) in the Clarion-Clipperton Zone (CCZ; also known as the Clarion – Clipperton Fracture Zone). Specifically, the study targeted two 30 by 30 kilometer (km) areas; one in the UK-1 contract area and one in the OMS contract area, centered approximately at 13 degrees 49 minutes North, 116 degrees 36 minutes West (13° 49' N, 116° 36' W) and 13 degrees 49 minutes North, 116 degrees 36 minutes West (13° 49' N, 116° 36' W), respectively.

本数据集的样品采集自太平洋克拉里昂-克利珀顿断裂带（Clarion-Clipperton fracture zone）内的UKSRL1区块、OMS矿区以及APEI区域，样品类型涵盖深渊沉积物、多金属结核与水柱样品。ABYSSLINE 2015科考航次（ABYSSLINE 2015 Cruise）由“托马斯·G·汤普森号”科考船（R/V Thomas G. Thompson，简称R/V Thompson）执行，航次时间为2015年2月12日至2015年3月25日，该航次由海底资源有限公司（Seabed Resources Limited）与新加坡海洋矿业公司（Ocean Mineral Singapore）联合资助并提供支持。本次AB02考察任务的核心目标为：对克拉里昂-克利珀顿区（CCZ，又称克拉里昂-克利珀顿断裂带）内水深3900至4400米的UK-1合同区与OMS合同区的生物与环境本底状况开展评估。具体而言，本研究选取两处30千米×30千米的研究区域：一处位于UK-1合同区，另一处位于OMS合同区，二者中心点坐标分别约为北纬13°49′、西经116°36′（13°49' N, 116°36' W）与北纬13°49′、西经116°36′（13°49' N, 116°36' W）。