| 青藏高原亚东—格尔木条带布格重力异常数字图象处理与地壳现代构造 |
| |
| 关键词: |
| 基金项目:国家自然科学基金会重点资助的“亚东—格尔木地学断面研究”课题 |
|
| 摘要点击次数: 2670 |
| 全文下载次数: 2950 |
| 摘要: |
| THE IＭAGERY PROCESSING OF GRAVITY ANOMALY IN THE YADONG—GOLMUD STRIP ON QINGHAI-XIZANG PLATEAU AND ITS RECENT CRUSTAL STRUCTURE |
| Digital filtering processing has been carried out with a macrocornputer. By utilizing the pseudo-color image(digital interference) technique, we have investigated the recent structural features and deformation traces of the crust. This paper has disczibed the extension process on the large WestEast strike-slipes, which is considered as margin faults. The subsequent normal faults are also mentioned. The fault system consisting of northeast and northwest structures was recognized. The activity of strike-slipes is one of the main reasons why Qinghai-Xizang plateau is shortened in North-South direction and earthquakes occur in this area. The filtered images that clearly reflect the deep anomalies show that the northeast-trending Yangbajing-Biru strike-slip at least cuts through the upper crust. It is also seen that the lowest value of the deep anormalies is found around Qiangtang block, which, in the aspect of isostasy, may mean that Tarnggula Mountain has a very deep root. |
| GAO Rui,MENG Ling-shun,LI Li.1990.THE IＭAGERY PROCESSING OF GRAVITY ANOMALY IN THE YADONG—GOLMUD STRIP ON QINGHAI-XIZANG PLATEAU AND ITS RECENT CRUSTAL STRUCTURE[J].Acta Geoscientica Sinica,11(2):162-173. |
| 查看全文 查看/发表评论 下载PDF阅读器 |