| 日本北海道音调津的球状石墨 |
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| 引用本文： | 传秀云,森原望,鲍莹,魏春景.日本北海道音调津的球状石墨[J].地质学报,2012,86(2):241-246. |
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| 作者姓名： | 传秀云 森原望 鲍莹 魏春景 |
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| 作者单位： | 北京大学地球与空间科学学院,北京,100871 |
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| 基金项目： | 国家自然科学基金项目（面上项目，重点项目，重大项目）,国家教育部回国人员科研启动基金 |
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| 摘 要： | 本文利用光学显微镜、X射线衍射仪、透射电镜等手段对日本北海道音调津球状石墨的成因、结构等进行研究,认为日本北海道音调津球状石墨中除了石墨外,还存在镍黄铁矿﹑黄铜矿﹑磁黄铁矿等金属硫化物矿物。通过透射电子显微镜观察发现音调津石墨中大部分是椭圆状石墨颗粒,高分辨晶格条纹主要是非晶态结构,但是同时也发现了结晶良好的石墨。高结晶度石墨的存在可能是在硫化物Fe-Ni-Cu的触媒作用下形成的。天然球状石墨的微结构和性状研究对天然石墨的形成和开发应用有重要意义,对新型碳材料的制备技术有重要科学意义。
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| 关 键 词： | 球状石墨 结构 硫化物 催化剂 |
| 收稿时间： | 2011/10/14 0:00:00 |
| 修稿时间： | 2011/12/11 0:00:00 |
Orbicular Graphite in Oshirabetsu, Hokkaido, Japan |
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| CHUAN Xiuyun,NOZOMI Morihar,BAO Ying and WEI Chunjing.Orbicular Graphite in Oshirabetsu, Hokkaido, Japan[J].Acta Geologica Sinica,2012,86(2):241-246. |
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| Authors: | CHUAN Xiuyun NOZOMI Morihar BAO Ying and WEI Chunjing |
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| Institution: | School of Earth and Space Science, Peking University, Beijing 100871, China |
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| Abstract: | With the X-Ray diffraction, optical microscope, microstructure of orbicular graphite in Oshirabetsu, Hokkaido, Japan, was characterized and analysized. Except of graphite, there are sulphide minerals, such as pentlandite, chalcopyrite, pyrrhotite and etc. Morphology of the orbicular carbon particles is mainly elliptical in TEM, but amorphous by HRTEM. Some flaky and needlelike carbon is also observed in this orbicular graphite by TEM, which was well crystallized with very good straight lattice fringe of graphite by HRTEM clearly. Flaky and needlelike graphite might be induced by catalyst of Fe-Ni-Cu sulphide minerals. Natural orbicular graphite is a special phenominen as a unusual graphite mine. The microstructure could be helpful for formation mechanism explanation, and also beneficial for the production of new carbon materials. |
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| Keywords: | Orbicular graphite microstructure sulphide catalyst |
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