| 地形坡度对多金属结核分布的控制作用 |
| |
| 引用本文： | 王英,李家彪,韩喜球,吴自银.地形坡度对多金属结核分布的控制作用[J].海洋学报,2001,23(1):60-65. |
| |
| 作者姓名： | 王英 李家彪 韩喜球 吴自银 |
| |
| 作者单位： | 国家海洋局第二海洋研究所, 浙江杭州 310012;国家海洋局海底科学重点实验室, 浙江杭州 310012 |
| |
| 基金项目： | 中国大洋矿产资源研究开发“九五”项目“资源评价与地质研究”之子课题“太平洋多金属结核成矿控制的模型研究”资助项目(DY95-02-03). |
| |
| 摘 要： | 选取我国东太平洋多金属结核开辟区内的一个区域作为研究区,利用人工神经网络中应用最为广泛的BP网络,建立控制多金属结核分布的地质因素与多金属结核分布之间的映射关系,探讨地形坡度对多金属结核分布的控制作用.结果表明,在经度、纬度、水深、坡度四个因素中,坡度对结核分布影响程度最大;多金属结核主要分布于坡度小于5°的地方;当坡度小于5°时,丰度与地形坡度呈正相关,品位与地形坡度呈负相关,丰度与品位呈负相关;品位与坡度似呈指数关系,坡度增大,品位降低.
|
| 关 键 词： | 地形坡度 多金属结核 人工神经网络 BP网络 |
| 文章编号： | 0253-4193(2001)01-0060-06 |
| 收稿时间： | 1999/10/14 0:00:00 |
| 修稿时间： | 1999年10月14 |
The influence of terrain slope on the distribution of polymetallic nodules |
| |
| WANG Ying,LI Jia-biao,HAN Xi-qiu and WU Zi-yin.The influence of terrain slope on the distribution of polymetallic nodules[J].Acta Oceanologica Sinica (in Chinese),2001,23(1):60-65. |
| |
| Authors: | WANG Ying LI Jia-biao HAN Xi-qiu and WU Zi-yin |
| |
| Institution: | Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China;Key Laboratory of Seafloor Geoscience of State Oceanic Administration, Hangzhou 310012, China |
| |
| Abstract: | Abstract:An area in the China Pioneer Area of polymetallic nodule in the East Pacific Ocean is selected as the study area,and models which reflect the relations between distribution of polymetallic nodules and the geologic factors are established by the artificial neural network BP method to probe into the influence of terrain slope on polymetallic nodules.The results show that:the terrain slope plays an more important role in affecting the distribution of polymetallic nodules as compared with longitude,latitude and depth; the polymetallic nodules are mostly distributed on the area whose slope is less than 5°;when the terrain slope is less than 5°,there is positive correlation between the abundance and the terrain,there is negative correlation between the grade and the terrain,and the abundance is negatively correlated with the grade; there is the exponential relation between the polymetallic grade and the slope,with empirical equation y=2.2495·x-0.2166 a can expressed it. |
| |
| Keywords: | terrain slope polymetallic nodules artificial neural network BP method |
|
| 点击此处可从《海洋学报》浏览原始摘要信息 |
| 点击此处可从《海洋学报》下载免费的PDF全文 |
|
