| 志留—泥盆纪华北高地的猜想：从甘肃的研究说起 |
| |
| 引用本文： | 张,旗.志留—泥盆纪华北高地的猜想：从甘肃的研究说起[J].甘肃地质学报,2011(2):1-10. |
| |
| 作者姓名： | 张 旗 |
| |
| 作者单位： | 中国科学院地质与地球物理研究所; |
| |
| 基金项目： | 中国科学院地质与地球物理研究所岩石圈演化国家重点实验室项目; 国家自然科学基金重大研究计划(91014001,90714007和90714011)项目资助的研究 |
| |
| 摘 要： | 为华北克拉通缺失晚奥陶世—早石炭世地层的记录,岩相古地理解释为一个古陆,我们研究认为它可能是一个高地。寒武—奥陶纪时华北克拉通为广泛的浅海相碳酸盐岩沉积,指示为海台地势,地壳厚度〈30km。志留—泥盆纪时为一高地,地壳厚约〉40km。晚石炭世发育海相、海陆交互相沉积,地壳厚度也在30km左右。高地的形成与构造挤压有关,...
|
| 关 键 词： | 华北克拉通 志留—泥盆纪的华北高地 冷高原 热高原 高地形成机制 |
GUESS ON THE SILURIAN-DEVONIAN NORTH CHINA HIGHLAND:EVIDENCE FROM THE INFORMATION OF GANSU |
| |
| ZHANG Qi.GUESS ON THE SILURIAN-DEVONIAN NORTH CHINA HIGHLAND:EVIDENCE FROM THE INFORMATION OF GANSU[J].Acta Geologica Gansu,2011(2):1-10. |
| |
| Authors: | ZHANG Qi |
| |
| Institution: | ZHANG Qi(Institute of Geology and Geophysics,Chinese Academy of Sciences,Beijing 100029,China) |
| |
| Abstract: | North China Craton(NCC) missing the Late Ordovician-Early Carboniferous strata,was interpreted as an ancient landmass by the Petrographic palaeogeographical work,but our study suggests that it may be a highland.The NCC has a wide range of shallow marine carbonate sediments in Cambrian-Ordovician,indicating a sea-platform topography with crustal thickness less than 30 km.During the Silurian-Devonian,it was a highland with crust thickness >40 km.In the Late Carboniferous,the NCC has widely distributed marine ... |
| |
| Keywords: | North China Craton Silurian-Devonian North China Highland cold highland hot highland mechanism of formation |
| 本文献已被 CNKI 维普 等数据库收录！ |
| 点击此处可从《甘肃地质学报》浏览原始摘要信息 |
| 点击此处可从《甘肃地质学报》下载免费的PDF全文 |
|
