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研究结果表明青藏高原各块体和断裂带的地壳深部物性特征有明显的差异,在横向和纵向具有明显的不均匀性.冈底斯块体尤为突出.由于受印度大陆的挤压,壳内高导层在冈底斯块体中向北倾,且不连续.但在羌塘和巴颜喀拉块体中基本上呈水平分布,且较厚.金沙江断裂带在玉树附近向北倾斜,澜沧江断裂和怒江断裂带基本上呈垂直分布.重力布格异常南北两端较高,高原内部较低,察隅-沙马尚未达到重力均衡,呈明显的负异常,表明该地区正处在快速隆升的阶段.此外在不同的块体内和断裂带上,地磁异常的变化十分明显,由南向北磁异常的强度和变化幅度明显地减弱.各种地球物理方法的观测与研究,从不同的侧面反映出了研究区域内块体和断裂的空间展布特征.
The results show that there are significant differences in the deep crustal physical properties between the blocks and fault zones in the Qinghai-Tibet Plateau, with obvious inhomogeneities in the horizontal and vertical directions, especially in the Gangdese block. Due to the compression of the Indian mainland, The high-conductivity layer is tilted northward and discontinuous in the Gangdese block, but is generally horizontal and thick in the Qiangtang and Bayan Har blocks. The Jinshajiang fault zone slopes northward near the Yushu , The Lancangjiang River fault and the Nujiang fault zone are basically vertical distribution. The gravitational Bouguer anomaly is higher at both the north and south and lower in the plateau, and Zayu-Shama has not reached the gravimetric equilibrium and shows a significant negative anomaly, indicating that the area is at Rapid uplift stage.In addition, in different blocks and fault zones, the change of geomagnetic anomaly is obvious, and the intensity and variation range of magnetic anomalies from south to north are obviously weakened.A variety of geophysical methods are observed and studied from The different sides reflect the spatial distribution of the blocks and faults in the study area.