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Review of Greenland Activities 1998 Li131999 183 I Ll B S D L G F L G R i f G l d i i i 1998 GEOLOGY OF GREENLAND SURVEY BULLETIN 183 • 1999 Review of Greenland activities 1998 G l f G l d S B ll i 183 1999 GEOLOGICAL SURVEY OF DENMARK AND GREENLAND MINISTRY OF ENVIRONMENT AND ENERGY GEUS GEOLOGY OF GREENLAND SURVEY BULLETIN 183 • 1999 Review of Greenland activities 1998 Edited by A. K. Higgins and W.Stuart Watt GEOLOGICAL SURVEY OF DENMARK AND GREENLAND MINISTRY OF ENVIRONMENT AND ENERGY Geology of Greenland Survey Bulletin 183 Keywords Airborne geophysics, climatic research, geological mapping, Greenland activities 1998, limnology, resource studies, petroleum geol- ogy, publications review. Cover The area around the head of Søndre Strømfjord has been known for some time to contain saline lakes. The salinity in these closed- basin lakes has resulted from evaporation during the Holocene and as a result the sediments can be used as climate archives. The sediments in some of these lakes are laminated and it is easier to take cores when the lakes are frozen (see Anderson et al. this vol- ume). The photograph shows returning from Store Saltsø, one of the saline lakes in the area, after a day’s coring. The fossil shore- lines around the lake are highlighted by the snow in the background. Photo: N.J. Anderson. Frontispiece: facing page The Apparsuit promontory south-east of Upernavik seen from the deck of M/S Sila during the 1998 reconnaissance for mineral occur- rences in North-West Greenland (see Thomassen et al. p. 39). The promontory, 540 m high, is composed of exfoliated granite belong- ing to the 1.86 Ga Prøven igneous complex and hosts an important bird cliff, as can be seen from the coloration. The field work was a joint project between the Survey and the Bureau of Minerals and Petroleum, Government of Greenland. Chief editor of this series: Peter R. Dawes Scientific editors: A.K. Higgins and W. Stuart Watt Copy editor: Peter R. Dawes Editorial secretaries: Esben W. Glendal and Birgit Eriksen Lay-out and graphic production: Carsten E. Thuesen Printers: From & Co. A/S, Copenhagen, Denmark Printed: 30th December, 1999 ISBN 87-7871-070-7 ISSN 1397-1905 Geology of Greenland Survey Bulletin The series Geology of Greenland Survey Bulletin is a continuation of Bulletin Grønlands Geologiske Undersøgelse and incorporates Rapport Grønlands Geologiske Undersøgelse. Citation of the name of this series It is recommended that the name of this series is cited in full, viz. Geology of Greenland Survey Bulletin If abbreviation of this volume is necessary the following form is suggested: Geology Greenland Surv. Bull. 183, 81 pp. Available from Geological Survey of Denmark and Greenland Thoravej 8, DK-2400 Copenhagen NV, Denmark Phone: +45 38 14 20 00, fax: +45 38 14 20 50, e-mail: [email protected] or Geografforlaget ApS Fruerhøjvej 43, DK-5464 Brenderup, Denmark Phone: +45 63 44 16 83, fax: +45 63 44 16 97, e-mail: [email protected] © Danmarks og Grønlands Geologiske Undersøgelse (GEUS), 1999 central 3 western eastern 3 North 6 North - West North - East 4 1 central 5 East central West southern East 8 southern West South - East South - West 2 7 500 km South Locality map for contributions in this Review of Greenland activities. Numbers locate the eight scientific papers in the table of con- tents opposite; the Director’s review introducing this volume deals with the whole of Greenland. Contents Bold numbers refer to the location map opposite A review of Greenland activities, 1998 . K. Sørensen 7 Conclusion of the 1:500 000 mapping project in the Caledonian fold belt in North-East Greenland [1] . N. Henriksen 10 New insights on the north-eastern part of the Ketilidian orogen in South-East Greenland [2] . A.A. Garde, J. Grocott and K.J.W. McCaffrey 23 Airborne geophysical surveys in Greenland in 1998 [3] . T.M. Rasmussen and L. Thorning 34 Upernavik 98: reconnaissance mineral exploration in North-West Greenland [4] . .B. Thomassen, J. Kyed, A. Steenfelt and T. Tukiainen 39 Petroleum geological activities in West Greenland in 1998 [5] . F.G. Christiansen, A. Boesen, J.A. Bojesen- Koefoed, J.A. Chalmers, F. Dalhoff, G. Dam, B.F. Hjortkjær, L. Kristensen, L.M. Larsen, C. Marcussen, A. Mathiesen, H. Nøhr-Hansen, A.K. Pedersen, G.K. Pedersen, T.C.R. Pulvertaft, N. Skaarup and M. Sønderholm 46 Observations on the Quaternary geology around Nioghalvfjerdsfjorden, eastern North Greenland [6] . O. Bennike and A. Weidick 57 Climate change and the Viking-age fjord environment of the Eastern Settlement, South Greenland [7] . A. Kuijpers, N. Abrahamsen, G. Hoffmann, V. Hühnerbach, P. Konradi, H. Kunzendorf, N. Mikkelsen, J. Thiede, W. Weinrebe and shipboard scientific party of RV Poseidon, and surveyors of the Royal Danish Administration for Navigation and Hydrography 61 Limnological and palaeolimnological studies of lakes in south-western Greenland [8] . N.J. Anderson, O. Bennike, K. Christoffersen, E. Jeppesen, S. Markager, G. Miller and I. Renberg 68 Publications on Greenland by the Survey, 1998 . B. Eriksen and P.R. Dawes 75 A review of Greenland activities, 1998 Kai Sørensen Director Field activities in Greenland by the Geological Survey Through its representative on the Board of GEUS, the of Denmark and Greenland (GEUS) were at a high level Government of Greenland is directly involved in set- in 1998, involving 122 persons including 23 from the ting priorities for the Survey’s activities. GEUS had two Danish Lithosphere Centre (DLC); these figures include geologists seconded to the BMP in Nuuk throughout guest researchers within and outside Denmark. This 1998 to assist in its work concerning mineral and petro- year, the Survey’s normal total staff, in terms of man- leum exploration. BMP and GEUS jointly supported ini- years, amounted to 362; of these, 98 were focused on tiatives to inform the international oil and mineral Greenland-related activities. DLC, whose activities up industries about opportunities in Greenland through to now have largely been concerned with research in publication of the newsletters Ghexis Newsletter and Greenland, has a normal staff of 21 persons. Greenland MINEX News, and through participation in GEUS activities are primarily funded by the Danish conferences in Europe and North America with pub- state through a Finance Law grant, of which 35 million licity stands, lectures and posters. DKK were ear-marked for Greenland activities in 1998. In addition funding for resource-related activities is pro- vided by the Government of Greenland (18 million DKK) via the Bureau of Minerals and Petroleum (BMP) Geological mapping in Nuuk, which took over administrative responsibility The Survey’s mapping project in North-East Greenland for energy and mineral resources on the 1st of July 1998. between latitudes 72°N and 75°N was initiated in 1997 General scientific activities are made possible by with the emphasis on compilation of a 1:500 000 scale funding from a variety of sources, national, as well as map (sheet 11, Kong Oscar Fjord; Fig. 1, 1) and the field international: the Danish Natural Science Research activities by an expedition group totalling 43 persons Council, the Commission for Scientific Research in were completed in 1998. The 29 geologists and ten stu- Greenland, the Carlsberg Foundation, the European dent assistants included a DLC party of two working Union, the Government of Greenland (through the with Paleogene basalts, several teams studying post- BMP), and others. Scientific funding agencies contribute Caledonian basins (Tupolar project), and mineral significantly to earth science activities in Greenland. resource investigations (see also below). This now clas- Total funding for Greenland activities in 1998 thus sic area of North-East Greenland was originally mapped amounted to 84 million DKK. The Danish Lithosphere during Lauge Koch’s expeditions before and after the Centre, funded by a grant from the Danish National Second World War. Developments in geological tech- Research Foundation (Grundforskningsfonden), is niques, notably the advent of absolute dating methods, administratively linked to the Survey but housed in the have necessitated a systematic re-mapping, with the buildings of the University of Copenhagen. focus on interrelationships between reworked base- General scientific activities are often co-operative ment complexes and Neoproterozoic and Early Pal- ventures between GEUS and national as well as inter- aeozoic sediments. The timing of granite formation and national universities and research establishments. Co- emplacement has also been the subject of reassess- operation with institutions in Greenland are particularly ment. During the 1998 field work logistic support was important. In 1998, the Greenland National Museum given to a Cambridge University field party which vis- and Greenland Field Investigations (Asiaq) participated ited some of the classic Devonian vertebrate localities, in the Survey’s scientific activities. Geology of Greenland Survey Bulletin 183, 7–9 (1999) © GEUS, 1999 7 pling and mapping of the very early Archaean Isua Ellesmere Island supracrustal belt. This work is undertaken in co-oper- Station Nord 80° ation with a number of institutions within and outside Canada Washington 4 Land central Denmark, and is primarily funded by the Danish Natural 4 western eastern Science Research Council. North Inglefiel d In South-East Greenland work continued on the elu- Land 10 Nioghalvfjerdsfjorden cidation of the plate tectonic processes during the Pituffik 76° Palaeoproterozoic Ketilidian orogeny. Studies in 1998 Thule Air Base concentrated on the margins of the Julianehåb batholith North - West North - East (Fig. 1, 3) with the purpose of improving models of its emergence. The project was carried out as a joint pro- Daneborg ject with Kingston University, England, and the Danish 7 Inland contribution was funded by grants from the Carlsberg 1 ° Upernavik 72 Foundation and the Danish Natural Science Research Ice Kong Oscar Council. Svartenhuk 6 Fjord Halvø Uummannaq 8 central Scoresby Sund Disko central East West st y Aasiaat K 68° Mineral resource investigations e southern ill ev East ss The Survey’s ongoing airborne geophysical programme, 9 11 Blo Sisimiut Kangerlussuaq 14 financially supported by the BMP, was continued at a 13 high level in 1998.
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