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DOI | https://doi.org/10.1594/PANGAEA.848639 |
Downcore rock-magnetic properties of ICDP Core 5045-1, Lake Ohrid | |
Just; Janna; Nowaczyk; Norbert R; Sagnotti; Leonardo; Francke; Alexander; Vogel; Hendrik; Lacey; Jack H; Wagner; Bernd | |
发布日期 | 2015-08-10 |
数据集类型 | dataset |
英文简介 | The bulk magnetic mineral record from Lake Ohrid, spanning the past 637 kyr, reflects large-scale shifts in hydrological conditions, and, superimposed, a strong signal of environmental conditions on glacial–interglacial and millennial timescales. A shift in the formation of early diagenetic ferrimagnetic iron sulfides to siderites is observed around 320 ka. This change is probably associated with variable availability of sulfide in the pore water. We propose that sulfate concentrations were significantly higher before ~320 ka, due to either a higher sulfate flux or lower dilution of lake sulfate due to a smaller water volume. Diagenetic iron minerals appear more abundant during glacials, which are generally characterized by higher Fe/Ca ratios in the sediments. |
空间范围 | Latitude: 41.049170 * Longitude: 20.715000 |
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/216983 |
推荐引用方式 GB/T 7714 | Just,Janna,Nowaczyk,et al. Downcore rock-magnetic properties of ICDP Core 5045-1, Lake Ohrid.2015-08-10.https://doi.org/10.1594/PANGAEA.848639. |
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