Abstract
The part of the North Greenland fold belt mapped in 1980 includes Johannes V. Jensen Land west of Polkorridoren, the group of large islands to the west, and the eastern margin of Nansen Land (Map 2). The rocks forming the fold belt are mainly Lower Palaeozoic turbiditic sediments, deposited in an E-W trending trough which is an extension of the Hazen trough of northern Ellesmere Island, Canada. Observations on the stratigraphy, structure and metamorphism of the fold belt are given in this report. Brief descriptions of the E-W trending Harder Fjord fault zone, the Kap Cannon thrust zone, and important swarms of basic dykes are also included. A geological map covering the parts of the North Greenland fold belt mapped in both 1979 and 1980 is found in the back of this report (Map 2), and indudes all the place names mentioned in the text.
Highlights
The part of the North Greenland fold belt mapped in 1980 includes Johannes V
A geological map covering the parts of the North Greenland fold belt mapped in both 1979 and 1980 is found in the back of this report (Map 2), and indudes all the place names mentioned in the text
Finds in 1979 of Lower L1andovery graptolites in the upper part of the sequence north of the fault zone provided a biostratigraphic link between the two stratigraphies (Surlyk et al, 1980; Hurst & Surlyk, 1980)
Summary
The part of the North Greenland fold belt mapped in 1980 includes Johannes V. The four-fold subdivision of the rock sequence north of the Harder Fjord fault zone (Soper et al, 1980), based on earlier work (Dawes & Soper, 1973, 1979), is used in this account. In 1980, two of the major Iithostratigraphic divisions known north of the fault zone, were found to the south underlying the previously lowest known unit. These and other observations have removed some of the uncertainties of previous corcelations; a general correlation of the stratigraphies on the two sides of the Harder Fjord fault zone is shown in fig. To be published in several parts, is in preparation
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