Open AccessSeismic velocity and sediment thickness investigations by refraction soundings in Nûgssuaq, West Greenland
Author(s) -
PREETI SHARMA
Publication year - 1973
Publication title -
rapport
Language(s) - English
Resource type - Journals
eISSN - 2597-2944
pISSN - 0418-6559
DOI - 10.34194/rapggu.v54.7337
Subject(s) - geology , seismic refraction , refraction , precambrian , geomorphology , sediment , cretaceous , basement , refracting telescope , seismology , paleontology , physics , optics , civil engineering , engineering
Interpretation of refraction soundings made along the coastal strip of north Nugssuaq indicates the presence of high velocity sediments (4.3 km/s) below Cretaceous beds of velocity 3 km/s. On the assumption of a simple three-layer model the depth to the top of the Precambrian basement refractor of velocity 5.6 km/s is estimated to be around 2500 m below sea level. Complex geology and irregular topography along the coastal strip severely limit the effective application of continuous refraction profiling.