气候变化领域集成服务门户(CCPortal): Accumulation rates of bulk sediment and opal in surface sediments of the South Atlantic

CCPortal

DOI	https://doi.org/10.1594/PANGAEA.230042
	Accumulation rates of bulk sediment and opal in surface sediments of the South Atlantic
	Geibert; Walter; Rutgers van der Loeff; Michiel M; Usbeck; Regina; Gersonde; Rainer; Kuhn; Gerhard; Seeberg-Elverfeldt; Jens
发布日期	2005-01-24
数据集类型	dataset
英文简介	A set of 114 samples from the sediment surface of the Atlantic, eastern Pacific and western Indian sectors of the Southern Ocean has been analyzed for 230Th and biogenic silica. Maps of opal content, Th-normalized mass flux, and Th-normalized biogenic opal flux into the sediment have been derived. Significant differences in sedimentation patterns between the regions can be detected. The mean bulk vertical fluxes integrated into the sediment in the open Southern Ocean are found in a narrow range from 2.9 g/m2 yr (Eastern Weddell Gyre) to 15.8 g/m2 yr (Indian sector), setting upper and lower limits to the vertically received fraction of open ocean sediments. The silica flux to sediments of the Atlantic sector of the Southern Ocean is found to be 4.2 ± 1.4 * 10**11 mol/yr, just one half of the last estimate. This adjustment represents 6% of the output term in the global marine silica budget.
空间范围	Median Latitude: -62.291838 * Median Longitude: -26.850695 * South-bound Latitude: -78.245160 * West-bound Longitude: -121.247000 * North-bound Latitude: -43.186667 * East-bound Longitude: 38.826667
时间范围	1987-01-23T21:39:00 - 2003-01-15T06:08:00
语种	英语
国家	国际
学科大类	气候变化
学科子类	气候变化
文献类型	数据集
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/232440
推荐引用方式 GB/T 7714	Geibert,Walter,Rutgers van der Loeff,et al. Accumulation rates of bulk sediment and opal in surface sediments of the South Atlantic.2005-01-24.https://doi.org/10.1594/PANGAEA.230042.