古环境

gǔ huán jìng
  • Paleoenvironment;palaeoenvironment
古环境古环境
古环境[gǔ huán jìng]
  1. 在古环境和古气候的分析上,缺乏定量化标准;

    The lack of standards for quantitative reconstruction of palaeoenvironment and palaeoclimate ;

  2. 福州盆地晚第四纪地层划分及古环境分析

    Division of Late Quaternary strata and analysis of palaeoenvironment in Fuzhou Basin

  3. 云南鹤庆盆地HQ孔沉积特征与古环境变迁

    Sedimentary characteristics and climatic evolution of core HQ in Heqing basin Yunnan Province

  4. 研究证明,生物有机过程可以使Fe同位素产生大的分馏效应,因此根据Fe同位素组成的变化可以推测古环境中生命活动的存在。

    Studies indicate that biological processes can significantly fractionate Fe isotopes , which in turn may be useful to trace the existence of biogenic activities in ancient environments .

  5. 3000年来该地区古环境变化经历下列过程:2.45KaBP前有河流沉积环境的特点:色素指标为零,C/N比值高达60~80等;

    Before 2.45 ka BP , fossil pigment was not found in sediments , and C / N was obviously high and even reached 60 - 80 , characteristic of fluvial facies .

  6. 与其它陆地古环境信息载体相比,洞穴滴石石笋具有分布广、时间跨度大、生长机制对环境敏感、适用于U系测年等特点。

    Compared with other paleo-environment information media on land , cave dripstone-stalagmite has many superiorities including wide-ranging distribution , long-time span , sensitive to outside environment , suitable for U-series dating etc.

  7. 这一结论与C3、C4植物本身对生长环境的要求是相符的,因此土壤碳酸盐δ13C值及C3、C4植物的生物量变化规律可以被用来作为指示古环境、古气候变化的指示因子。

    So , biomass of C3 , C4 plants and δ 13C values of soil section can be used to indicated the changing process of local paleoenvironment .

  8. 北极阿拉斯加巴罗地区Elson泻湖的沉积古环境研究

    Research on the sedimentary environmental changes in Elson lagoon at Barrow area , Alaskan Arctica

  9. 介绍用热电离质谱(thermalionizationmassspectrometry,TIMS)铀系法对海洋珊瑚定年的测定及古环境研究的一些成果。

    Experimental results of coral dating and paleoenvironment studies by using the thermal ionization spectrometry ( TIMS ) uranium series method were introduced .

  10. 四川龙门山区早泥盆世Emsian期群落古环境分析

    Palaeoenvironments of eight benthic communities in emsian stage of Lower Devonian from Mt. longmen , Sichuan Province

  11. 南海北部陆坡大洋钻探计划(ODP)1144站的高速堆积体为高分辨率的古环境研究提供了良好的材料。

    High accumulation-rate sediments at Ocean Drilling Program ( ODP ) Site 1144 in the northern slope of the South China Sea provide unique materials for a high-resolution study on paleoenvironment .

  12. 岩溶石笋的古环境研究进展

    Progress in research on the paleo - environment of karst stalagmite

  13. 新疆若羌石灰华中的植物化石及古环境

    Fossil plants from calcareous tufa and palaeoenvironments in ruoqiang , Xinjiang

  14. 南方高纬度新生代古环境专家组

    Group of Specialists on Cenozoic Palaeoenvironment of the Southern High Latitudes

  15. 晚第三纪以来中国古环境的特征及其发展历史

    The characteristics and evolution of paleoenvironment of China since late Tertiary

  16. 柴达木盆地中新世叠层石成因与古环境研究

    Study on Miocene stromatolites genesis and related paleo-environment in Qaidam basin

  17. 黄土化学组成的古环境信息研究

    Study on Environmental Information from Chemical Composition of Loess in Past Environment

  18. 韩江三角洲第四系中粘土矿物与古环境探讨

    Approach of Cley Mineral and Paleo-environment in the Quaternary of Hanjiang Delta

  19. 兰州地区晚第三纪地层的沉积相与古环境记录

    The Sedimentary Facies and Paleoenvironment Records of Late Tertiary in Lanzhou Area

  20. 成都金沙遗址脊椎动物及古环境研究

    The Studies on the Vertebrates and Paleoenvironment in Jinsha Site , Chengdu

  21. 应用生物标志物参数定量判识热水沉积古环境

    Application of biomarker parameters to quantitative discrimination of the hydrothermal sedimentary Paleoenvironment

  22. 从动物群化石看渤海晚第四纪的古环境演变史

    The late Quaternary paleo environmental history of Bohai on assemblage of faunas

  23. 铀曲线在沉积盆地古环境反演中的应用

    Application of uranium curve to paleoenvironment inversion in sedimentary basin

  24. 有孔虫壳体的Mg/Ca比值在古环境研究中的应用

    The application of foraminiferal shell mg / ca ratio in paleo-environmental studies

  25. 沉积物中黏土矿物具有一定的古环境指示意义。

    Clay minerals in sediments had some ancient environmental significance .

  26. 高分辨率古环境指示器&湖泊纹泥研究综述

    Review on the high resolution varved lake sediments as a proxy of Paleoenvironment

  27. 深圳地区晚第四纪孢粉组合及古环境演变

    Palynological Assemblages of Late Quaternary from the Shenzhen region and Its Paleoenvironment evolution

  28. 珊瑚的古环境信息研究进展

    Advance in study on paleo environmental information in coral

  29. 上海东部地区晚第四纪沉积的孢粉组合及古环境

    Palynological Assemblages of Late Quaternary in Eastern Part of Shanghai and Its Paleoenvironment

  30. 湖泊沉积物中的孢粉组合是重建古环境的重要手段。

    Pollen in lake sediments is an important proxy for reconstructing the paleo-environment .