Study of a 12.2-m inclined core from within the Malmros klint member of the Fleming Fjord formation at 71.73øN, 23.42øW reveals a•N-R-N-R-N polarity sequence within the core, where N is normal and R is reversed. The lower two normal zones are each less than I m thick and are separated by the 1-mthick lower reversed zone. The upper transition (R to N) is abrupt. A paleomagnetic pole position at 103øE, 34øN has been calculated from selected reversed samples. This pole is considered well determined ß in that (1) it is almost exactly 180 ø opposite a pole calculated from normal polarity samples and (2) samples involved in the determination appear to be well demagnetized when they are plotted on orthogonal vector demagnetization plots. It does not agree, however, with the position calculated by rotating the mean North American Upper Triassic paleomagnetic pole about the Greenland-North American rotation axis by an amount sufficient to open the Davis Strait in post-Triassic time. The calculated pole position is approximately 20 ø ESE of a similar pole predicted from European data, although severe selection of the data would tend to halve the distance to the predicted European pole. The paleomagnetic pole derived from the Fleming Fjord formation in this study supports the suggestion that Greenland was attached to the European plate rather than to the North American plate in the Late Triassic and was located considerably south of its present' location at that time. Late in the field season of 1972 a 12.2-m continuously drilled inclined core was collected by D. Leythaeuser and K. W. Bay from a site 200 m north of the first side valley on Allday Dal, a tributary to Oersted Dal in Jameson Land, east Greenland. A general location map is shown in Figure 1. The site coordinates are 71ø44'N, 23ø25'W. The samples were collected from the lower middle portion of the Malmros klint member of the Fleming Fjord (formerly Cape Biot) formation, the top of the core being located very roughly 75 m above the base of the member. It was originally planned to drill down to the base of the Malmros klint member and thus acquire a reversal sequence covering a substantial portion of, if not all of, Carnian time, but the threat of early snow forced a halt to drilling. This paper reports the results of 1200 measurements on 208 specimens cut from 134 individually oriented samples from that core. GEOLOGY The Malmros klint member of the Fleming Fjord formation (formerly the Fleming Fjord member of the Cape Biot formation [Perch-Nielsen et al., 1972]) is the middle member of the formation. It is overlain by the Oersted Dal member, a series of mudstones, sandstones, and arkosic conglomerates topped by limestone, dolomite, and a bone bed of Rhetic age. It is underlain by the Edderfugledal member, a siltstone with stromatolitic and oolitic layers [Perch-Nielsen et al., 1972]. The Malmros klint member itself is a series of dark red to red brown (5YR-5/2, 5YR-3/2) and some purplish (5RP-4/2) mudstones. Publications previous to the work of Perch-Nielsen et a...
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