• 海侵成事件鄂尔多斯盆地古生代聚积基本特色

    Transgressive coal forming and coal forming under event are the essential features of Late Palaeozoic coal accumulation in Ordos basin.

    youdao

  • 华北古生代具有中部南部变质程度较高南部边缘北部特点。

    In north China, the late Paleozoic coal was metamorphosed mainly to middle and high ranking in the central and southern belts, but only to low, ranking in the northern belt and southern margin.

    youdao

  • 作者通过对豫西古生代微粒体的研究提出向异性微粒,对其次生成因提供了佐证

    The authors suggest that there is a kind of anisotropic micrinite existing in the Late Paleozoic coal seams of western Henan coal field, and the evidences of its secondary origin are provided.

    youdao

  • 中国古生代中生代新生代大地构造性质各个地区不同

    The tectonic nature of different regions in China in the Early and Late Paleozoic, Mesozoic and Cenozoic coal-forming periods is different.

    youdao

  • 稀土元素分布模式华北古生代沉积特征一致的,表明样稀土元素分布模式是由继承下来的。

    The distribution pattern of REE is in accordance with the characteristic of Late Paleozoic sediments in North China platform, reflecting that it is inherited from the source rock.

    youdao

  • 湖南省东南部古生代中生代盆地多处发现推覆构造。

    Several nappes have been found in the late Paleozoic and Mesozoic coal-bearing basins in southeastern Hunail.

    youdao

  • 采用仪器中子活化分析法(INAA)测定华北古生代石炭纪-二叠纪58个层夹矸顶底板样品稀土元素含量。

    An INAA (Instrumental Neutron Activation Analysis) method was used to determine the abundance of rare-earth elements in 58 late Palaeozoic coals and related rocks in North China.

    youdao

  • 本文论述山西大同古生代地层沉积特征及其地层学意义

    The authors discuss the depositional characteristics and sequence stratigraphic significance of late Paleozoic coal-bearing strata of the Datong area, Shanxi.

    youdao

  • 研究古生代岩系主要形成陆表海岸平原环境中

    In the research area, the coal series in late Palaeozoic era were mainly formed from epeiric sea - coastal plain environment.

    youdao

  • 通过济宁唐阳井古生代岩系中的化石研究,共鉴定出孢粉化石71177

    Based on the study of sporopollen fossils from the coal-bearing formation of the late Palaeozoic Era in Tangyang mine field of Jining, 71 genera and 177 species of sporopollen are identified.

    youdao

  • 通过济宁唐阳井古生代岩系中的化石研究,共鉴定出孢粉化石71177

    Based on the study of sporopollen fossils from the coal-bearing formation of the late Palaeozoic Era in Tangyang mine field of Jining, 71 genera and 177 species of sporopollen are identified.

    youdao

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