scholarly journals Uppermost Ordovician and Silurian geology of north-west Peary Land, North Greenland

1979 ◽  
Vol 88 ◽  
pp. 41-49
Author(s):  
J.M Hurst
Keyword(s):  
North West ◽  
Precambrian Rocks ◽  
Comprehensive Account ◽  
Composite Section ◽  
Lower Palaeozoic ◽  
North Greenland ◽  
Carbonate Buildup

In 1978 mapping was concentrated in the area of Peary Land, between J. P. Koch Fjord and Odins Fjord, south of a line connecting Nordpasset with Harebugt and the western end of Frederick E. Hyde Fjord (fig. 11 and map l). Prior to this season the Silurian geology of the area was largely unknown. Previous investigations of the platform sediments of Peary Land (Koch, 1923; Troelsen, 1949, 1956; Jepsen, 1971) had mainly concentrated on the older Lower Palaeozoic and Precambrian rocks of southern Peary Land. The only comprehensive account of the Lower Palaeozoic rocks of the platform (including Silurian) of Peary Land, by Peel & Christie (1975) and Christie & Peel (1977) was based on a single composite section in the Børglum Elv district, north of Jørgen Brønlund Fjord (fig. 11). A localised detailed study of a Silurian carbonate buildup in the Børglum Elv region (Mayr, 1976) is the only other aspect of Silurian geology studied in the whole area.

scholarly journals Lower Palaeozoic geology of the western part of the North Greenland fold belt

1966 ◽  
Vol 11 ◽  
pp. 11-15
Author(s):  
P.R Dawes
Keyword(s):  
The Arctic ◽  
North Coast ◽  
Northern Coast ◽  
Fold Belt ◽  
North West ◽  
The North ◽  
Lower Palaeozoic ◽  
Inland Ice ◽  
Insight Into ◽  
North Greenland

In the summers 1965 and 1966 reconnaissance mapping of 10 000 km2 of the rarely visited north coast of North Greenland was carried out. In 1965 the investigations were restricted to Hall Land (fig. 3) with a view of obtaining an insight into the stratigraphy of the Ordovician-Silurian succession, while in 1966 work centred on Nyeboe Land and Hendrik Island with cursory exammation of the north-west coast of Wulff Land and the islands in Sherard Osborn Fjord. Both the unfolded rocks of the south towards the Inland Ice and the folded rocks of the northern coast bordering the Robeson Channel and the Arctic Ocean were studied and in the two summers a broad view of the western part of the North Greenland fold belt i. e. west of Peary Land, has been obained.

scholarly journals The Precambrian, Eocambrian and early Palaeozoic stratigraphy of the Jørgen Brønlund Fjord area, Peary Land, North Greenland

1971 ◽  
Vol 96 ◽  
pp. 1-42
Author(s):  
H.F Jepsen
Keyword(s):  
Lower Cambrian ◽  
Field Work ◽  
Sedimentary Sequence ◽  
Long Period ◽  
Composite Section ◽  
Lower Palaeozoic ◽  
Early Palaeozoic ◽  
North Greenland

The sedimentary sequence in the platform area (approx. 2500 km2) around Jørgen Brønlund Fjord, North Greenland, has been mapped, and sections through the Precambrian, Eocambrian and Lower Palaeozoic sequence are described. After a summary of the previous geological field work carried out in the area, a lithological description of a composite section through the sequence below the Lower Cambrian Brønlund Fjord Dolomite (Troelsen, 1949) is given. This sequence, which is about 1000 m thick, is divided into four formations – in ascending order: Inuiteq Sø Formation (sandstone), Morænesø Formation (tillite and dolomite), Portfjeld Formation (dolomite) and Buen Formation (sandstone and shale). The first three named formations are separated by two unconformities both representing a long period of erosion. The strata are cut by two dolerite sequences, of which the older (the Midsommersø dolerites) is of Precambrian age and intrudes only the Inuiteq Sø Formation. Intrusions of the younger sequence penetrate all the strata in the Jørgen Brønlund Fjord area and are regarded as post-Palaeozoic. In the last section the chronostratigraphy and the correlation with neighbouring areas are discussed. Special attention is given to the two newly discovered erosional unconformities, which together with the tillite occurrence and the radiometric K/Ar dated Midsommersø dolerites, throw new light on the stratigraphy of North Greenland.

scholarly journals Reconnaissance scale geochemical survey in central and western North Greenland Preliminary results concerning zinc and barium

1985 ◽  
Vol 126 ◽  
pp. 95-104
Author(s):  
A Steenfelt
Keyword(s):  
Grain Size ◽  
Regional Distribution ◽  
Sediment Samples ◽  
X Ray ◽  
North West ◽  
Preliminary Results ◽  
The Matrix ◽  
Lower Palaeozoic ◽  
High Level ◽  
North Greenland

Stream sediment samples were colleeted at a density of 1 sample per 30 km2 in Warming Land, Wulff Land, Nares Land, Nansen Land and along Navarana Fjord. The minus 0.1 mm grain size fraetion of the samples was analysed by X-ray fluorescenee for 30 elements. The regional distribution pattem for the contents of Zn and Ba reflects the lithological changes. Lowest values for both elements occur in the lower Palaeozoic earbonate platform and the contents gradually inerease northwards in the flysch deposits of the Silurian basin to a high level for both elements in samples from the folded Cambrian basin deposits in Nansen Land. Anomalously high values of Zn and Ba at Navarana Fjord and at north-west Nares Land are associated with a thin Cambro-Ordovician unit of blaek dolomitie mudstones. Reeonnaissanee zine anomalies and the occurrenee of massive sphalerite in the matrix of a breccia zone at Navarana Fjord are taken as indications of a major zine mineralising event.

A new volcanic province: evidence from glacial erratics in western North Greenland

2000 ◽  
pp. 35-41 ◽  
Author(s):  
Peter R. Dawes ◽  
Bjørn Thomassen ◽  
T.I. Hauge Andersson
Keyword(s):  
Volcanic Rocks ◽  
Iron Formation ◽  
Banded Iron Formation ◽  
Common Component ◽  
Volcanic Province ◽  
North West ◽  
North East ◽  
The North ◽  
Surficial Deposits ◽  
North Greenland

NOTE: This article was published in a former series of GEUS Bulletin. Please use the original series name when citing this article, for example: Dawes, P. R., Thomassen, B., & Andersson, T. H. (2000). A new volcanic province: evidence from glacial erratics in western North Greenland. Geology of Greenland Survey Bulletin, 186, 35-41. https://doi.org/10.34194/ggub.v186.5213 _______________ Mapping and regional geological studies in northern Greenland were carried out during the project Kane Basin 1999 (see Dawes et al. 2000, this volume). During ore geological studies in Washington Land by one of us (B.T.), finds of erratics of banded iron formation (BIF) directed special attention to the till, glaciofluvial and fluvial sediments. This led to the discovery that in certain parts of Daugaard-Jensen Land and Washington Land volcanic rocks form a common component of the surficial deposits, with particularly colourful, red porphyries catching the eye. The presence of BIF is interesting but not altogether unexpected since BIF erratics have been reported from southern Hall Land just to the north-east (Kelly & Bennike 1992) and such rocks crop out in the Precambrian shield of North-West Greenland to the south (Fig. 1; Dawes 1991). On the other hand, the presence of volcanic erratics was unexpected and stimulated the work reported on here.

scholarly journals Notes on some Lower Palaeozoic to Tertiary faunas from eastern North Greenland

1974 ◽  
Vol 65 ◽  
pp. 18-23
Author(s):  
J.S Peel ◽  
P.R Dawes ◽  
J.C Troelsen
Keyword(s):  
Field Work ◽  
The South ◽  
Initial Field ◽  
North East ◽  
The North ◽  
Lower Palaeozoic ◽  
North Greenland

The north-east 'corner' of Greenland is geologically probably the least known region in North Greenland. Various expeditions have visited the coastal parts but geological detail, particularly faunal information, has remained surprisingly scarce. Initial field work by Koch (1923, 1925) and Troelsen (1949a, b, 1950) showed that a Precambrian to Silurian section - unfolded in the south, folded in the north - was unconformably overlain by a Carboniferous to Tertiary section, now referred to as the Wandel Sea basin (Dawes & Soper, 1973).

scholarly journals Lower Cambrian trace fossils from northern Greenland

1988 ◽  
Vol 137 ◽  
pp. 43-53
Author(s):  
J Bergström ◽  
J.S Peel
Keyword(s):  
Lower Cambrian ◽  
Trace Fossils ◽  
Trace Fossil ◽  
East Greenland ◽  
North West ◽  
North Greenland

Rusophyciform and cruzianaeform trace fossils are described from Lower Cambrian siliciciastic shelf deposits in North-West and North Greenland. Cruziana cf. C. dispar Linnarsson, 1869 is reported from the Dallas Bugt Formation of Inglefield Land while a new ichnospecies, Rusophycus marginatus, occurs in the Buen Formation of Peary Land and in the equivalent Humboldt Formation of Daugaard-Jensen Land. These species show no similarity to the Cruziana sp. previously described from East Greenland. The occurrence of C. cf. C. dispar could indicate some similarity in Cambrian trace fossil 'ichnofaunas' between Greenland and Europe but available material is insufficient to ciarify this relationship.

scholarly journals The Sjælland Fjelde Formation: a new Ordovician formation from eastern North Greenland

1986 ◽  
Vol 132 ◽  
pp. 27-37
Author(s):  
J.R Ineson ◽  
J.S Peel ◽  
M.P Smith
Keyword(s):  
Shallow Water ◽  
North West ◽  
Middle Ordovician ◽  
The North ◽  
New Formation ◽  
North Greenland

The name Sjælland Fjelde Formation is introduced for a varied sequence of shallow-water platform dolomites and dolomitic limestones, about 105 m in thickness, in Kronprins Christian Land, eastern North Greenland. The new formation lies between the previously described Wandel Valley and Børglum River Formations. Conodont faunas indicate that the Sjælland Fjelde Formation is of Middle to earliest Late Whiterockian (early Middle Ordovician) age and that it can be eorrelated with the upper part of the Wandel Valley Formation of Peary Land to the north-west.

Thermal Maturity of Lower Palaeozoic Shales in North-West Europe - Calibration of Proxies

2012 ◽  
Author(s):  
N. H. Schovsbo ◽  
J. M. Moron ◽  
A. T. Nielsen ◽  
G. Nicolas ◽  
H. I. Petersen ◽  
...  
Keyword(s):  
Thermal Maturity ◽  
North West ◽  
Lower Palaeozoic

scholarly journals John Sutton, 8 July 1919 - 6 September 1992

1995 ◽  
Vol 41 ◽  
pp. 440-456
Keyword(s):  
Royal Society ◽  
Vice President ◽  
Imperial College ◽  
The West ◽  
North West ◽  
Precambrian Rocks ◽  
Policy Debates ◽  
The World ◽  
Entire Career ◽  
World Centre

John Sutton was a geologist who made an important contribution to the understanding of the Precambrian rocks of north-west Scotland, and his methods have been applied by others in many parts of the world. His entire career was spent at Imperial College, where he was associated with the growth of the Geology Department from small beginnings to a world centre, and he took part in many of the science policy debates of the seventies and eighties. He was appointed a Vice-President of the Royal Society in 1975, and in that office he was instrumental in establishing the first contacts between the West and the scientific community in China.

Maturation of lower palaeozoic kerogens from North Greenland

1993 ◽  
Vol 20 (3) ◽  
pp. 405-413 ◽  
Author(s):  
C. Bender Koch ◽  
F.G. Christiansen
Keyword(s):  
Lower Palaeozoic ◽  
North Greenland
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