scholarly journals Field work on the Precambrian basement in the Buksefjorden region, southern West Greenland

1973 ◽  
Vol 55 ◽  
pp. 32-37
Author(s):  
B Chadwick ◽  
K Coe
Keyword(s):  
Field Work ◽  
Precambrian Basement ◽  
West Greenland ◽  
The University

The summer of 1972 was the first of a five-season project in which geologists of the University of Exeter will map the 1:100 000 scale Buksefjorden sheet. A. D. Gibbs and M. R. Sharpe mapped the Qeqertarssuaq and Færingehavn areas while the authors made a reconnaissance of the entire map sheet in order to assess problems and establish sub-areas for mapping and research in forthcoming seasons.

scholarly journals Field work on the Precambrian basement in the Buksefjord region, southern West Greenland

1975 ◽  
Vol 75 ◽  
pp. 65-70
Author(s):  
B Chadwick ◽  
K Coe ◽  
J.G Stainforth ◽  
K.J Vines ◽  
P.R.A Wells
Keyword(s):  
Field Work ◽  
Precambrian Basement ◽  
West Greenland ◽  
Fine Weather ◽  
Field Season ◽  
The University ◽  
North And South

Five two-man teams from the University of Exeter spent a third field season mapping in the area of Buksefjorden as part of the GGU mapping programme in the Fiskenæsset region organised by GGU in conjunetion with the University of Exeter (Chadwiek & Coe, 1973; Chadwick et al., 1974a). Mapping at 1:20000 was begun by J. S., K. C. and K. V. in areas north and south-east of Buksefjorden and north of Alangordlia respeetively, while P. W. completed the area between Sermilik and Alângordlia east of Amitsuarssugssuaq. B. C. mapped Qilângârssuit, Simiutat and associated islands in the skaergaard south of Angissorssuaq at a scale of 1:10000. The group was supported by helicopters and the GGU cutters J. F. Johnstrup and Villiaumit organised by Feiko Kalsbeek from Midgård. Boat assistance was also provided by V. R. McGregor in mapping the outer islands. The exceptionally fine weather enabled good progress and more than 60% of the Buksefjorden sheet isnow completed. Localities referred to in the text may be found by reference to 1:250000 maps 64 V. 1 Godthåb and 63 V. 1 Færingehavn.

scholarly journals Mapping of the Precambrian basement in the Buksefjorden region, southern West Greenland

1974 ◽  
Vol 65 ◽  
pp. 54-60
Author(s):  
B Chadwick ◽  
K Coe ◽  
A.D Gibbs ◽  
M.R Sharpe ◽  
P.R.A Wells
Keyword(s):  
Field Studies ◽  
Precambrian Basement ◽  
West Greenland ◽  
The University ◽  
Coast Region ◽  
Anorthosite Complex

The summer of 1973, the second of a six-year series of field studies by teams from the University of Exeter, saw the completion of 1:20 000 mapping of the coast region from Ameralik (Narssaq-Præstefjord) south to Sermilik, i.e. approximately between latitudes 64°N to 63°30'N. The area mapped in detail, which excludes the Qilángârssuit island complex, extends inland for about 10 km. A.D.G. mapped the ground between Ameralik and Buksefjorden, M.R.S. mapped from south of Buksefjorden to, and including, the Tre Brødre anorthosite complex, B.C. covered most of the ground between Tre Brødre and Amitsuarssugssuaq, including Sanerata tima, and P.R.A.W. began work in the area between Alangordlia and Sermilik. B.C. also spent a week at the end of the season making a reconnaissance of Qilángârssuit.

scholarly journals Investigations on the Nagssugtoqidian boundary between Holsteinsborg and Kangâmiut, central West Greenland

1973 ◽  
Vol 55 ◽  
pp. 22-25
Author(s):  
D Bridgwater ◽  
A Escher ◽  
D.F Nash ◽  
J Watterson
Keyword(s):  
Field Work ◽  
Dyke Swarm ◽  
Mobile Belt ◽  
Progressive Deformation ◽  
Southern Boundary ◽  
Joint Project ◽  
West Greenland ◽  
Formed Part ◽  
The University

The southern boundary of the Nagssugtoqidian mobile belt was first mapped by Noe-Nygaard & Ramberg (1961) on the basis of the progressive deformation of a swarm of basic dykes - the Kangarniut dyke swarm. Field work in 1969 showed this boundary to have an approximate NE-SW strike (Eseher et al., 1970). The object of the summer's field work reported on here was to continue the investigations along the Nagssugtoqidian boundary and to study the deformation- metamorphism-dyking relationships in the western part between Holsteinsborg and Kangamiut. The field work formed part of a joint project involving the University of Liverpool. Transport in the field was supplied by the GGU cutter "A. Kornerup" with Orla Norsk as skipper.

scholarly journals Field work between Fiskefjord and Godthåbsfjord, southern West Greenland

1984 ◽  
Vol 120 ◽  
pp. 45-50
Author(s):  
A.A Garde
Keyword(s):  
Granulite Facies ◽  
Field Work ◽  
Precambrian Basement ◽  
The South ◽  
West Greenland ◽  
Basement Rocks ◽  
Logistic Support

The 1980-1981 field work in Precambrian basement rocks for the Fiskefjord map sheet was continued in 1983. V. R. McGregor mapped granulite facies gneisses south of outer Fiskefjord in the south-western part of the map sheet area. The author worked inland between Godthåbsfjord and Fiskefjord from the eastern map sheet boundary at 50°54'E westwards to 51°45'E (fig. 22) and some notes concerning the lithologies, geometry and geochronology of this area are presented below. The GGU cutter K. J. V. Steenstrup and a Jet Ranger helicopter on weekly charter from Godthåb provided logistic support for the two Fiskefjord teams and for four teams mapping in the Ivisårtoq area (see Brewer et al., this report) as well as for the GGU glaciological station at Qamanârssûp serrnia.

scholarly journals Malene stratigraphy and late Archaean structure: new data from Ivisârtoq, inner Godthåbsfjord, southern West Greenland

1986 ◽  
Vol 130 ◽  
pp. 74-85
Author(s):  
B Chadwick
Keyword(s):  
Field Work ◽  
Main Thrust ◽  
Late Archaean ◽  
West Greenland ◽  
Preliminary Results ◽  
Critical Areas ◽  
Basaltic Magmas ◽  
Bad Weather ◽  
The University

This report summarises the principal results of a six-week study of some critical areas in Ivisârtoq (part of the Ivisârtoq region, 65 V. 2 Nord; fig. 1) by a two-man expedition (the writer and his undergraduate assistant) during the summer of 1985, a period of exceptionally good weather. Our objective was to complete the field programme of a team from the University of Exeter (Chadwick et al., 1983; Brewer et al., 1984) which had been seriously disrupted by bad weather in 1983. The main thrust of the field work in 1985 was to investigate the geometry of the late Archaean system of dornes of gneisses and intervening synclinal cusps of Malene supracrustal rocks which dominates the structure of Ivisârtoq (figs 1,2). The fjeld mapping revealed important new details, not only of the structure but also of the Malene stratigraphy and the emplacement of granitic and basaltic magmas during the development of the system of dornes and synclines. Systematic geological investigations in the Ivisårtoq region began in 1976 (Allaart et al., 1977) and important contributions have been made by Hall & Friend (1979, 1983), Hall (1980, 1981) and Friend et al. (1981). Some preliminary results of investigations by the Exeter team have been reported by Brewer et al. (1984), Chadwick (1985), and Coe & Robertson (1984). Details of isotopic ages and petrogenesis of the gneisses and late Arehaean granites have been reported by Robertson (1985, in press).

scholarly journals Precambrian mineralising events in central West Greenland (66°–70°15´N)

2005 ◽  
Vol 7 ◽  
pp. 61-64 ◽  
Author(s):  
Henrik Stendal ◽  
Adam A. Garde
Keyword(s):  
Field Work ◽  
Geophysical Data ◽  
Geological Survey ◽  
Mineral Deposits ◽  
Precambrian Basement ◽  
Metamorphic Evolution ◽  
West Greenland ◽  
The Past ◽  
Geological Evolution

During the past decade the Geological Survey of Denmark and Greenland (GEUS) has carried out two major resource evaluations in the Precambrian basement terranes of South and West Greenland in order to locate potential areas of mineral deposits (Steenfelt et al. 2000, 2004; Stendal & Schønwandt 2003; Stendal et al. 2004). Based on geological field work and geochemical and geophysical data, these evaluations have assessed the interplay between the magmatic, tectonic and metamorphic evolution in the study areas and their mineralising events. As a result of the second of these evaluations it is now possible to outline a succession of mineralising events in the northern part of the Nagssugtoqidian orogen and in the Disko Bugt area of central West Greenland (Fig. 1), and relate them to the general Archaean and Palaeoproterozoic geological evolution of this region. However, uncertainties still exist concerning the age and detailed setting of many epigenetic mineralisations.

scholarly journals Renewed petroleum geological studies onshore West Greenland

1992 ◽  
Vol 155 ◽  
pp. 31-35
Author(s):  
F.G Christiansen ◽  
G Dam ◽  
D.J McIntyre ◽  
H Nøhr-Hansen ◽  
G.L Pedersen ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Field Work ◽  
Petroleum Exploration ◽  
Detailed Knowledge ◽  
West Greenland ◽  
Submarine Fans ◽  
Marine Strata ◽  
Detailed Interpretation ◽  
Geochemical Studies ◽  
The University

As a consequence of renewed interest in petroleum exploration in West Greenland (e.g. Pulvertaft, 1991: Christiansen & Pulvertaft 1992; Gil & Gas Journal, 1991; Chalmers & Pulvertaft, in press) the Geological Survey of Greenland (GGU) has begun a new series of petroleum geological investigations of the Upper Cretaceous – Lower Tertiary sediments exposed on Disko. Nugssuoq and Svartenhuk Halvø (69°–72°N) (Fig. 1). These sediments include the only marine sediments of this age exposed in the entire Labrador Sea–Baffin Bay region. and studies of these are essential for a detailed interpretation of the offshore geology (Chalmers, 1990, 1991; Ottesen, 1991a, b). Field work on the marine succession has been concentrated on three main tasks: detailed sedimentological studies; sampling for palynological and organic geochemical studies; and mapping and structural analysis, in order to gain a detailed knowledge of both early basin development in West Greenland the three-dimensional architecture of deltas and submarine fans. The petroleum geological studies are being coordinated with ongoing studies of age-equivalent non-marine strata being carried out by the University of Copenhagen, and with several other externally finance projects.

scholarly journals Geological reconnaissance in the Precambrian basement of the Atâ area, central West Greenland

1988 ◽  
Vol 140 ◽  
pp. 9-17
Author(s):  
C Knudsen ◽  
P.W.U Appel ◽  
B Hageskov ◽  
L Skjernaa
Keyword(s):  
Field Work ◽  
Aerial Photographs ◽  
Precambrian Basement ◽  
West Greenland ◽  
Logistic Support

Geological reconnaissance was carried out in July 1987 as part of regional geological investigations planned for 1986-1992. The field work was carried out from three field camps with logistic support from GGV cutter 'J. F. Johnstrup', a helicopter and a rubber dinghy. The mapping was made on aerial photographs.

scholarly journals Proterozoic basaltic magmatic periods in North-West Greenland: evidence from K/Ar ages

1986 ◽  
Vol 130 ◽  
pp. 24-31
Author(s):  
P.R Dawes ◽  
D.C Rex
Keyword(s):  
Present Report ◽  
Field Work ◽  
West Greenland ◽  
North West ◽  
Basaltic Rocks ◽  
The Third ◽  
Intrusive Rocks ◽  
Set Up ◽  
The University ◽  
Host Rocks

This paper is the third of a series reporting on K/Ar whole rock ages of Proterozoic basaltic rocks of the Thule district, North-West Greenland. The dating programme is a co-operative venture between the Geological Survey of Greenland and The University, Leeds, V.K., and was set up in connection with a 1:500 000 mapping project of the region between 75°N and 78° 45'N (Melville Bugt - Inglefield Land, fig. 1). Field work by one of us (PRD) has shown that several episodes of unmetamorphosed Proterozoic basic igneous rocks can be distinguished stratigraphically in the region (see below). The routine K/Ar isotopic work, carried out concurrently with the field work, has aimed at dating these episodes, thereby providing minimum ages for deposition or consolidation of the host rocks. The two earlier reports (Dawes et al., 1973, 1982a) dealt with sills and dykes from the northern part of the region (Inglefield Land - Prudhoe Land); intrusions that have known or inferred stratigraphic relationships with the Proterozoic Thule Group. The present report gathers together all hitherto unpublished K/Ar dates - 18 in total on both extrusive and intrusive rocks - mainly from the central and southern parts of the region (Inglefield Bredning and Melville Bugt). Six of the samples represent cross-cutting intrusions in the Precambrian Shield that have uncertain age relationships with the overlying Thule Group.

Upernavik 98: reconnaissance mineral exploration in North-West Greenland

1999 ◽  
pp. 39-45 ◽  
Author(s):  
Bjørn Thomassen ◽  
Johannes Kyed ◽  
Agnete Steenfelt ◽  
Tapani Tukiainen
Keyword(s):  
Mineral Exploration ◽  
Mining Industry ◽  
Field Work ◽  
Geological Survey ◽  
Original Series ◽  
West Greenland ◽  
North West ◽  
One Year

NOTE: This article was published in a former series of GEUS Bulletin. Please use the original series name when citing this article, for example: Thomassen, B., Kyed, J., Steenfelt, A., & Tukiainen, T. (1999). Upernavik 98: reconnaissance mineral exploration in North-West Greenland. Geology of Greenland Survey Bulletin, 183, 39-45. https://doi.org/10.34194/ggub.v183.5203 _______________ The Upernavik 98 project is a one-year project aimed at the acquisition of information on mineral occurrences and potential in North-West Greenland between Upernavik and Kap Seddon, i.e. from 72°30′ to 75°30′N (Fig. 1A). A similar project, Karrat 97, was carried out in 1997 in the Uummannaq region 70°30′–72°30′N (Steenfelt et al. 1998a). Both are joint projects between the Geological Survey of Denmark and Greenland (GEUS) and the Bureau of Minerals and Petroleum (BMP), Government of Greenland, and wholly funded by the latter. The main purpose of the projects is to attract the interest of the mining industry. The field work comprised systematic drainage sampling, reconnaissance mineral exploration and spectroradiometric measurements of rock surfaces.

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