Open AccessReinvestigation of the Cretaceous boundary fault in Sarqaqdalen, Nûgssuaq, central West Greenland
Author(s) -
T.C.R Pulvertaft
Publication year - 1989
Publication title -
rapport
Language(s) - English
Resource type - Journals
eISSN - 2597-2944
pISSN - 0418-6559
DOI - 10.34194/rapggu.v145.8068
Subject(s) - geology , cretaceous , unconformity , outcrop , reinterpretation , paleontology , fault (geology) , seismology , sedimentary rock , physics , acoustics
A reinvestigation of the major fauIt in Sarqaqdalen was undertaken in 1988 in response to a renewed interest in the style and timing of the whole fault system that marks the easterly limit of Cretaceous sediments in central West Greenland. This interest stems in turn from the reinterpretation ofseismic lines from the 1970s that has recently been initiated in GGU (Chalmers, 1988; 1989). Dating of seismic sequences isinfiuenced greatly by what ean be learnt from the nearest onshore outcrops, for example proven unconformities in onshore sequences, and demonstrable relationships between sedimentation and fauIt movements.