Tab. 2: Gravity measurements of the Inntal underground at Thaur

A cross-section of the Inn-valley has been surveyed by refraction- and refiection-seismic and gravimetrie methods. The thickness of the Inn-va.!ley sediments is 340- 390 m. At the northern edge of the valley an intermediate layer between sediments and basement has been detected, which is up to 300 ITl thick. This zone seems to mark the boundary of the northern calcareous alps.

通过折射地震法（refraction-seismic）、反射地震法（reflection-seismic）及重力测量法（gravimetrie），对因河谷（Inn-valley）的横截面进行了勘察。因河谷沉积物的厚度为340至390米。在河谷北缘，探测到沉积物与基底之间存在一层厚度可达300米的中间层，该区域似乎标志着北钙质阿尔卑斯山脉的边界。