| 铀"成矿壳层"与"热隆构造" |
| |
| 引用本文： | 余达淦,吴仁贵.铀"成矿壳层"与"热隆构造"[J].铀矿地质,2007,23(1):17-22. |
| |
| 作者姓名： | 余达淦 吴仁贵 |
| |
| 作者单位： | 东华理工学院,江西,抚州,344000 |
| |
| 摘 要： | 铀富集成矿在垂向分布上受一定标高控制，形成具上限和下限的空间层带（俗称成矿壳层）。这个层带的出现受构造及地球化学环境的双重控制，下限面为韧脆性构造转换面，铲状断裂系的下铲面，以剥离断层为界面，是岩石温度变化的突变面、构造环境（压、张）反差明显的变化面，也是酸、碱分离及氧化一还原交替的地球化学环境变化的转换面，构成铀“成矿壳层”的底面；上限面为古大地水准面，是地壳表面重力向量的势能等值面，它控制了区域侵蚀基准面、潜水面、渗入水的氧化一还原渗透面、上升的深部溶液与下降水的混合面，是铀成矿壳层的上界面。
|
| 关 键 词： | 铀成矿壳层 热隆构造 剥离断层 古大地水准面 |
| 文章编号： | 1000-0658（2007）01-0017-06 |
| 修稿时间： | 2006-03-10 |
Uranium "metallogenic lithospheric layer" and "thermal upwelling structure" |
| |
| YU Da-gan,WU Ren-gui.Uranium "metallogenic lithospheric layer" and "thermal upwelling structure"[J].Uranium Geology,2007,23(1):17-22. |
| |
| Authors: | YU Da-gan WU Ren-gui |
| |
| Institution: | East China lnstitue of Technology, Fuzhou, Jiangxi 344000, China |
| |
| Abstract: | Uranium metallogy is concentrated in certain scope of elevation,and forms a special zone with upward and downward limitation(called lithospheric layer).The occurrence of this zone is controlled by both tectonic and geochemic setting.The downward limitation is a transfer layer of ductile structure with the interface of detach structure,abrupt change of geotempreture,change of structure stress(compression and tension),separation of acid and alkali,geochemical oxidation and reduction,it is the bottom of uranium"metallogenic lithospheric layer".The upward limitation is the paleo-geoid,it is the iso-surface of gravity potentian energy,which controls the regional base level of erosion,surface of water table,interface of oxidation and reduction of infitration water,interface of mix of ascending deep solution and descending water and the top surface of Uranium "metallogenic lithospheric layer". |
| |
| Keywords: | uranium metallogenic lithospheric layer themal upwelling structure detach fault paleo-geoid |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
