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- There is great thickness of lake sediments of Eogene in Biyang rifted-basin. 泌阳断陷沉积了巨厚的老第三系稳定的湖相水下沉积,深凹区是主要的生油区,地层极平缓。
- C/N ratio is extensively used to reflect the sources of the organic matter in the lake sediments. 摘要C/N比值在湖泊沉积物研究中广泛用于反映有机质的来源;
- Even at Meridiani, basaltic sands lie atop the lake sediments, indicating that the site has been parched for two billion to three billion years. 甚至在子午线地盘,玄武岩质的沙披覆在湖床沉积物上,显示此地已经乾涸了20~30亿年。
- Lass on ignition (LOI) is a simple, inexpensive method widely used to measure contents of organic and inorganic carbon in lake sediments. 摘要烧失量分析是一种便捷的测定湖泊沉积物有机碳与碳酸盐含量的方法。
- Loss on ignition(LOI) is a simple,inexpensive method widely used to measure contents of organic and inorganic carbon in lake sediments. 烧失量分析是一种便捷的测定湖泊沉积物有机碳与碳酸盐含量的方法。
- As an important component of lake sediments, diatom is of great value for reconstructing paleoclimate and paleoenvironment. 摘要硅藻是湖泊沉积物的重要组成部分,沉积物硅藻硅氧同位素在重建古气候、古环境方面具有重要价值。
- As an important component of lake sediments,diatom is of great value for reconstructing paleoclimate and paleoenvironment. 硅藻是湖泊沉积物的重要组成部分,沉积物硅藻硅氧同位素在重建古气候、古环境方面具有重要价值。
- Eicher U.Siegenthaler U Late-glacial climatic oscillations as recorded in Swiss lake sediments ;von Grafenstein U.Erlenkeuser H. 新疆艾比湖地区湖泊沉积记录的早全新世气候环境特征 作者:吴敬禄 - - 被引用次数: - 相关文章 - 所有 个版本 Lotter A F.
- The characteristics of the Suhongtu Formation reflect shore - shallow and semi-deep lake sediments interbedded with volcanogenic rock. 其中,苏红图组沉积时期伴随火山的活动,呈现滨浅湖、半深湖沉积与区域性火山岩相间的分布特征。
- Total secondary inorganic carbonate content, namely TCC, of lake sediments, is valuable proxy to indicate environmental, climatic and tectonic change. 摘要湖积物中次生化学成因碳酸盐含量受控于包括温度、水分在内的众多因素,其变化可反映环境、气候及构造信息。
- Biological archives such as the resting eggs of Daphnia in lake sediments are a valuable tool for investigating how organisms respond to changes in the ecosystem. 生物学的存档比如在湖泊沉积物中溞类休眠卵对研究是一个有价值的东西。它们能够对生态系统的变化做出反应。
- It indicated that deltaic depositional system、lake sediments and landslide slump fan are the main sedimentary system of Chang 6 in Yichuan-Xunyi district. 结果表明,长6油层组主要发育三角洲沉积、湖泊沉积和湖底滑塌扇沉积。
- As a good carrier of paleoclimate and paleoenvironment, lake sediments could be a reflector of the evolution history of climate, vegetation and human activities. 摘要湖泊沉积物作为揭示古环境、古气候变迁的最佳载体,它完整地记录了地质历史时期区域气候、植被以及人类活动的演化软迹。
- There is great thickness of lake sediments of Eogene in Biyang rifted-basin.The layers in the deep depression which was the main oil source area are almost horizontal. 泌阳断陷沉积了巨厚的老第三系稳定的湖相水下沉积,深凹区是主要的生油区,地层极平缓。
- LI Wan-chun,LI Shi-jie,PU Pei-min.Review on the high-resolution varved lake sediments as a proxy of paleoenvironment[J].Advance in Earth Sciences,1999,14(2):172-176. [2]李万春;李世杰;濮培民.;高分辨率古环境指示器湖泊纹泥研究综述[J]
- The researchers were able to tell wet from dry years by analyzing the amounts of different forms of oxygen in the lake sediment. 研究人员从分析湖泊沉积物不同形式的含氧量,就足以分辨是干旱年还是雨水较多的湿润年。
- But that record is far too short to capture large-scale events like the drought that wiped out Roanoke -- events that we can confirm through other detailed climate records like tree rings or lake sediments. 但那些记录太短,无法捕捉到象毁灭罗安诺克的大旱这样的重大事件。这些事件我们可以从其它像树轮、湖泊沉淀物这些详细的气候记录中得到证实。
- Remains of these plants, initially cultivated in the Near East, first appear in lake sediments in southeastern Europe and then spread to the west and north over the next several thousand years. 这些最初种植于近东的植物,其遗迹首先出现在欧洲东南的湖泊沉积物中,然后在接下来数千年间往西与北散布。
- The concentrations of Pb, Cu, Cr, Cd, Fe and Mn in the overlying water and the pore waters of Dianshan Lake sediment were determined using PERKIN-ELMER 5100PC AAS. 用原子吸收光谱仪测定了淀山湖上覆水体和沉积物孔隙水中Pb、Cu、Cr、Cd、Fe和Mn的浓度.
- Nitrogen release characteristic of Dianchi lake sediment and the nitrogen nutrients concentration of overlying water body was studied through simulating cultivation. 通过模拟培养,研究了底泥氮营养的释放及上覆水体中氮营养的浓度变化特征。