2010年9月，在赛里木湖的最深区域使用重力取样器取了一个30厘米长的沉积物芯，沉积物剖面在塑料板上以0.5厘米的间隔进行切片，在实验室里进行冷冻干燥之后，进行了重金属元素分析。分析得到Hg、Al、Cr、Cu Zn、As、Cd、Pb和Pb isotopes，重金属地质累积指数和重金属来源区分数据。
", "ds_source": "2010年9月，使用重力取样器从赛里木湖取了一个30厘米长的芯。所选取的采样点位于湖的最深区域。
", "ds_process_way": "与芯筒壁接触的沉积物被丢弃，沉积物剖面在塑料板上以0.5厘米的间隔进行切片，在分析重金属的样品之前，先在实验室里进行冷冻干燥。\nAl、Cr、Cu、Pb和Zn等元素在用硝酸氢氟酸消化后，用American Leeman Labs Profile电感耦合等离子体-原子发射光谱仪（ICP-AES）进行测定。\n高氯酸消化后，使用美国利曼实验室Profile电感耦合等离子体-原子发射光谱仪（ICP-AES）测定锌。来自美国的标准溶液SPEXTM被用作标准。通过对重复样品、空白样品和参考材料（GSD-9和GSD-11，中国地质参考材料）的分析来保证质量控制。\n溶液中As和Cd的浓度用ICP-MS测定。测量误差为<10%。根据美国环保局（1998年）的规定，使用直接汞分析仪（Hydra-C型）（Teledyne Leeman实验室，美国）来测定汞浓度。使用标准材料ESS-3来控制测量质量，测量误差<2.7%。铅同位素分析使用Perkine Elmer ICP-QMS SCIEX Elan 9000进行（Renberg等，2002；Hu等，2011）。使用美国国家标准和技术研究所的标准参考材料（SRM 981普通铅同位素材料）验证了精度和准确性。这些标准 值一般在5%以内。\n使用210Pb对岩心进行了测定。210Pb和226Ra的活性在样品低温干燥（<40 C）并称重后，用Ortec HPGe GWL系列井式同轴低背景本征锗检测器测量。从210Pb的总活度（210Pbtot）中减去226Ra的活度，就可以得到每个样品中多余的210Pb（210Pbex）。然后，利用恒定供应率（CRS）测年模型（Appleby和Oldfield，1978年），将210Pbexc用于制定年表。
", "ds_quality": "来自美国的标准溶液SPEXTM被用作标准。通过对重复样品、空白样品和参考材料（GSD-9和GSD-11，中国地质参考材料）的分析来保证质量控制。溶液中As和Cd的浓度用ICP-MS测定。测量误差为<10%。。使用美国国家标准和技术研究所的标准参考材料（SRM 981普通铅同位素材料）验证了精度和准确性。
", "ds_acq_start_time": null, "ds_acq_end_time": null, "ds_acq_place": "", "ds_acq_lon_east": null, "ds_acq_lat_south": null, "ds_acq_lon_west": null, "ds_acq_lat_north": null, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "login-access", "ds_total_size": 128872, "ds_files_count": 4, "ds_format": ".xlsx格式", "ds_space_res": "无", "ds_time_res": "无", "ds_coordinate": "无", "ds_projection": "无", "ds_thumbnail": "618b64dc-69a8-49cd-9d22-6fbc5e8026e0.png", "ds_thumb_from": 0, "ds_ref_way": "", "paper_ref_way": "", "ds_ref_instruction": "", "ds_from_station": null, "organization_id": "a5877b42-96ea-4f13-af7e-246f355413d6", "doi_value": "", "subject_codes": [ "170.50" ], "quality_level": 1, "publish_time": "2025-05-14 19:04:59", "first_publish_time": null, "last_updated": "2025-05-18 15:45:00", "protected": false, "protected_to": null, "lang": "zh", "cstr": "33110.11.ariddc.00611", "license": null, "extra": null, "files_shape": [ { "name": "1752-2008年新疆赛里木湖沉积岩芯元素分析数据-data.xlsx", "size": 17098, "is_dir": false }, { "name": "1752-2008年新疆赛里木湖沉积岩芯元素地质累计指数数据-data.xlsx", "size": 15018, "is_dir": false }, { "name": "1752-2008年新疆赛里木湖沉积岩芯重金属来源数据-data.xlsx", "size": 25076, "is_dir": false }, { "name": "2011年赛里木湖沉积岩芯元素数据集.xls", "size": 71680, "is_dir": false } ], "features": null, "data_level": 0, "i18n": { "en": { "title": "1752-2008 Elemental data of sedimentary core of Sailimu Lake, Xinjiang in", "ds_abstract": "In September 2010, a 30-cm-long sediment core was taken using a gravity sampler in the deepest area of Selimu Lake. The sediment profile was sliced at 0.5-cm intervals on a plastic plate and subjected to freeze drying in the laboratory. After drying, heavy metal elements were analyzed. Hg, Al, Cr, Cu were analyzed Zn, As, Cd, Pb and Pb isotopes, heavy metal geological accumulation index and heavy metal source discrimination data.
", "ds_source": "In September 2010, a 30-centimeter-long core was taken from Selimu Lake using a gravity sampler. The selected sampling points are located in the deepest area of the lake.
", "ds_process_way": "Deposits that came into contact with the core barrel walls were discarded, sediment profiles were sliced on plastic plates at 0.5 cm intervals, and were freeze-dried in the laboratory before analyzing samples of heavy metals.\nElements such as Al, Cr, Cu, Pb and Zn were digested with nitric acid and hydrofluoric acid and determined using the American Leeman Labs Profile inductively coupled plasma-atomic emission spectrometer (ICP-AES).\nAfter perchloric acid digestion, zinc was determined using a Profile inductively coupled plasma-atomic emission spectrometer (ICP-AES) at Liman Laboratory in the United States. A standard solution SPEXTM from the United States was used as a standard. Quality control was ensured through the analysis of duplicate samples, blank samples and reference materials (GSD-9 and GSD-11, China Geological Reference Materials).\nThe concentrations of As and Cd in the solution were determined by ICP-MS. The measurement error is 10%. Mercury concentrations are determined using a direct mercury analyzer (Hydra-C model)(Teledyne Leeman Laboratories, USA) in accordance with U.S. Environmental Protection Agency (1998) regulations. The standard material ESS-3 was used to control the measurement quality, with a measurement error of 2.7%. Lead isotope analysis was performed using Perkine Elmer ICP-QMS SCIEX Elan 9000 (Renberg et al., 2002;Hu et al., 2011). Accuracy and accuracy were verified using the National Institute of Standards and Technology standard reference material (SRM981 Ordinary Lead Isotopic Material). These standard values are generally within 5%.\nThe core was measured using 210Pb. The activity of 210Pb and 226Ra was measured with an Ortec HPGe GWL series well coaxial low-background intrinsic germanium detector after samples were dried at low temperature (40C) and weighed. The excess 210Pb (210Pbex) in each sample can be obtained by subtracting the activity of 226Ra from the total activity of 210Pb (210Pbtot). Then, using a constant rate of supply (CRS) dating model (Appleby and Oldfield, 1978), 210Pbexc was used to develop a chronology.
", "ds_quality": "A standard solution SPEXTM from the United States was used as a standard. Quality control was ensured through the analysis of duplicate samples, blank samples and reference materials (GSD-9 and GSD-11, China Geological Reference Materials). The concentrations of As and Cd in the solution were determined by ICP-MS. The measurement error is 10%. Accuracy and accuracy were verified using the National Institute of Standards and Technology standard reference material (SRM981 Ordinary Lead Isotopic Material).
", "ds_format": ".xlsx format", "ds_projection": "no", "ds_space_res": "no", "ds_time_res": "no" } }, "license_type": null, "doi_reg_from": "reg_local", "cstr_reg_from": "reg_local", "doi_not_reg_reason": null, "cstr_not_reg_reason": null, "is_paper_in_submitting": false, "ds_topic_tags": [ "沉积岩芯元素", "沉积物" ], "ds_subject_tags": [ "地质学" ], "ds_class_tags": [], "ds_locus_tags": [ "赛里木湖", "新疆" ], "ds_time_tags": [ 1752, 1753, 1754, 1755, 1756, 1757, 1758, 1759, 1760, 1761, 1762, 1763, 1764, 1765, 1766, 1767, 1768, 1769, 1770, 1771, 1772, 1773, 1774, 1775, 1776, 1777, 1778, 1779, 1780, 1781, 1782, 1783, 1784, 1785, 1786, 1787, 1788, 1789, 1790, 1791, 1792, 1793, 1794, 1795, 1796, 1797, 1798, 1799, 1800, 1801, 1802, 1803, 1804, 1805, 1806, 1807, 1808, 1809, 1810, 1811, 1812, 1813, 1814, 1815, 1816, 1817, 1818, 1819, 1820, 1821, 1822, 1823, 1824, 1825, 1826, 1827, 1828, 1829, 1830, 1831, 1832, 1833, 1834, 1835, 1836, 1837, 1838, 1839, 1840, 1841, 1842, 1843, 1844, 1845, 1846, 1847, 1848, 1849, 1850, 1851, 1852, 1853, 1854, 1855, 1856, 1857, 1858, 1859, 1860, 1861, 1862, 1863, 1864, 1865, 1866, 1867, 1868, 1869, 1870, 1871, 1872, 1873, 1874, 1875, 1876, 1877, 1878, 1879, 1880, 1881, 1882, 1883, 1884, 1885, 1886, 1887, 1888, 1889, 1890, 1891, 1892, 1893, 1894, 1895, 1896, 1897, 1898, 1899, 1900, 1901, 1902, 1903, 1904, 1905, 1906, 1907, 1908, 1909, 1910, 1911, 1912, 1913, 1914, 1915, 1916, 1917, 1918, 1919, 1920, 1921, 1922, 1923, 1924, 1925, 1926, 1927, 1928, 1929, 1930, 1931, 1932, 1933, 1934, 1935, 1936, 1937, 1938, 1939, 1940, 1941, 1942, 1943, 1944, 1945, 1946, 1947, 1948, 1949, 1950, 1951, 1952, 1953, 1954, 1955, 1956, 1957, 1958, 1959, 1960, 1961, 1962, 1963, 1964, 1965, 1966, 1967, 1968, 1969, 1970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 ], "ds_contributors": [ "陈曦", "曾海鳌" ], "ds_meta_authors": [ "曾海鳌" ], "ds_managers": [ "李锦" ], "category": "水文" }