scholarly journals Preliminary analysis of the hydrocarbon source rock potential of central and western North Greenland

1985 ◽  
Vol 126 ◽  
pp. 117-128
Author(s):  
F.G Christiansen ◽  
H Nøhr-Hansen ◽  
F Rolle ◽  
P Wrang
Keyword(s):  
Source Rocks ◽  
Hydrocarbon Source Rock ◽  
North East ◽  
The North ◽  
South West ◽  
Oil Generation ◽  
Lithostratigraphic Units ◽  
Field Season ◽  
Rock Eval ◽  
North Greenland

During the 1984 field season potential hydrocarbon source rocks were studied in central and western North Greenland. Samples from most lithostratigraphic units were collected from Freuchen Land in the north-east to Washington Land in the south-west. Preliminary results from LECO, Rock-Eval and palynofacies analyses suggest that some intervals in the Cambrian shelf sequence and in the Ordovician and Silurian trough sequence have enough organic matter to qualify as source rocks. Most of the trough sequence is, however, thermally postrnature with respect to oil generation and only the Cambrian Brønlund Fjord Group is expected to have been the source of the oil accumulations in the subsurface.

scholarly journals The Cambrian Henson Gletscher Formation: a mature to postmature hydrocarbon source rock sequence from North Greenland

1987 ◽  
Vol 133 ◽  
pp. 141-157
Author(s):  
F.G Christiansen ◽  
H Nøhr-Hansen ◽  
O Nykjær
Keyword(s):  
Source Rock ◽  
Source Rocks ◽  
Hydrocarbon Generation ◽  
Hydrocarbon Source Rock ◽  
Reservoir Rocks ◽  
Potential Source ◽  
Potential Reservoir ◽  
Field Season ◽  
North Greenland

During the 1985 field season the Cambrian Henson Gletscher Formation in central North Greenland was studied in detail with the aim of evaluating its potential as a hydrocarbon source rock. The formation contains organic rich shale and carbonate mudstone which are considered to be potential source rocks. These are sedimentologically coupled with a sequence of sandstones and coarse carbonates which might be potential reservoir rocks or migration conduits. Most of the rocks exposed on the surface are, however, thermally mature to postrnature with respect to hydrocarbon generation, leaving only few chances of finding trapped oil in the subsurface of the area studied in detail.

scholarly journals Source rock investigations and shallow core drilling in central and western North Greenland

1986 ◽  
Vol 130 ◽  
pp. 17-23
Author(s):  
F.G Christiansen ◽  
O Nykjær ◽  
H Nøhr-Hansen
Keyword(s):  
Source Rock ◽  
Field Work ◽  
Geological Mapping ◽  
Source Rocks ◽  
Hydrocarbon Generation ◽  
Fully Integrated ◽  
Rock Quality ◽  
Lithostratigraphic Units ◽  
Field Season ◽  
North Greenland

The aim of project 'Nordolie' (Christiansen & Rolle, 1985) is to study the distribution and maturity of potential hydrocarbon source rocks in central and western North Greenland. A first broad reconnaissance and examination of most lithostratigraphic units throughout the region in 1984, followed by organic geochemical and palynofacies analyses, showed that some intervals in the Cambrian shelf sequence and in the Cambrian to Silurian trough sequence are sufficiently rich in organic matter to be considered as potential source rocks (Christiansen et al., 1985). The Cambrian and Ordovician trough sequence is thermally postmature with respect to hydrocarbon generation in the whole area. Consequently the second and final field programme within the project (1985) concentrated on the Cambrian shelf sequence (especially the Henson Gletscher Formation in the Brønlund Fjord Group) and the Silurian slope to trough sequence (Lafayette Bugt Formation and Wulff Land Formation). The main purpose of the 1985 work was to make a detailed study of these units combining field work and shallow core dril!ing. The samples and cores provide the basis for later detailed maturity studies and a quantitative evaluation of source rock quality and volume. As in 1984, the 1985 field season was fully integrated with the geological mapping programme in the region (Henriksen, this report). The field work was carried out by a team of two geologists and a dril!ing team with three technicians (John Boserup, Anders Clausen, Jørgen Bojesen-Koefoed) and a dril! site geologist. The three geologists alternated often in order to obtain continuity in the programme and furthermore six of the total 14 camps were located at the dril! sites (fig. 1).

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.

The Metamorphosed Limestones and Associated Contaminated Igneous Rocks of the Carlingford District, Co. Louth

1932 ◽  
Vol 69 (5) ◽  
pp. 209-233 ◽  
Author(s):  
G. D. Osborne
Keyword(s):  
Igneous Rocks ◽  
The South ◽  
Ordnance Survey ◽  
Igneous Complex ◽  
North East ◽  
The North ◽  
South West ◽  
Carboniferous Limestone ◽  
Contamination Effects

THE Carlingford-Barnave district falls within the boundaries of Sheet 71 of the Ordnance Survey of Ireland, and forms part of a broad promontory lying between Carlingford Lough on the north-east and Dundalk Bay on the south-west. The greater part of this promontory is made up of an igneous complex of Tertiary age which has invaded the Silurian slates and quartzites and the Carboniferous Limestone Series. This complex has not yet been investigated in detail, but for the purposes of the present paper certain references to it are necessary, and these are made below. The prevalence of hybrid-relations and contamination-effects between the basic and acid igneous rocks of the region is a very marked feature, and because of this it has been difficult at times to decide which types have been responsible for the various stages of the metamorphism.

Part VI. The Cyclopean Terrace Building and the Deposit of Pottery beneath It

1954 ◽  
Vol 49 ◽  
pp. 267-291
Author(s):  
Elizabeth B. Wace
Keyword(s):  
Contour Line ◽  
The South ◽  
Main Road ◽  
North West ◽  
North East ◽  
The North ◽  
South West

The Cyclopean Terrace Building lies to the north-west of the Lion Gate on the northern end of the Panagia Ridge and faces almost due west across the valley of the Kephissos and modern main road from Corinth to Argos. It lies just below the 200 m. contour line, and one terrace below the houses excavated in 1950–51 by Dr. Papadimitriou and Mr. Petsas to the east at the same end of the ridge. The area contains a complex of buildings, both successive and contemporary, and in view of the discovery of structures both to the south-west and, by the Greek Archaeological Service, to the north-east it is likely that this whole slope was covered by a portion of the outer town of Mycenae. This report will deal only with the structure to which the name Cyclopean Terrace Building was originally given, the so-called ‘North Megaron’, supported by the heavy main terrace wall.The excavation of this structure was begun in 1923. The main terrace wall was cleared and two L.H. IIIC burials discovered in the top of the fill in the south room. In 1950 it was decided to attempt to clear this building entirely in an endeavour to find out its date and purpose. The clearing was not, however, substantially completed until the close of the 1953 excavation season, and this report presents the available evidence for the date as determined by the pottery found beneath the building; the purpose is still a matter for study, though various tentative conclusions can be put forward.

scholarly journals A Viking-age inhumation from Crow Taing, Sanday, Orkney

2018 ◽  
Vol 40 (1) ◽  
pp. 83-99
Author(s):  
Lindsay Dunbar ◽  
Mike Roy
Keyword(s):  
New Record ◽  
Radiocarbon Dating ◽  
Skeletal Remains ◽  
The Body ◽  
Viking Age ◽  
North East ◽  
The North ◽  
South West ◽  
Surrounding Landscape ◽  
Burial Rite

The islands of Orkney have long been associated with examples of Viking-age activity and often yield unique and well preserved records from the Viking and Late Norse periods. Investigations on the island of Sanday in Orkney, as part of a call off contract for human remains between Historic Environment Scotland and AOC Archaeology Group, have revealed the presence of an inhumation in association with an iron knife. Further investigation reveals that the burial is that of an adolescent skeleton (12–17 years). The north-east/south-west alignment of the body, in a flexed position, and its association with an iron knife indicates a pre-Christian burial rite, in line with a 9th or 10th century AD date, which corresponds with radiocarbon dating carried out on the skeletal remains. This burial contributes a new record to the wealth of evidence from around this period within the surrounding landscape on the island of Sanday.

scholarly journals Volcanic centres between Frigg Fjord and Midtkap, eastern North Greenland

1981 ◽  
Vol 106 ◽  
pp. 69-75
Author(s):  
I Parsons
Keyword(s):  
Fault Zone ◽  
Fold Belt ◽  
The South ◽  
The North ◽  
Rock Types ◽  
South West ◽  
North Greenland

A series of smal! volcanic centres cut Ordovician turbidites of Formation A in the southem part of Johannes V. Jensen Land between Midtkap and Frigg Fjord (Map 2). Their general location and main rock types were described by Soper et al. (1980) and their nomenclature is adopted here for fig. 22 with the addition of the small pipe B2. A further small intrusion, south-west of Frigg Fjord, was described by Pedersen (1980). The centres lie 5-10 km south of, and parallel to, the important Harder Fjord fault zone (fig. 22) which traverses the southern part of the North Greenland fold belt and shows substantial downthrow to the south (Higgins et al., this report).

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 Eastern North Greenland 1994, the 1:500 000 mapping project

1995 ◽  
Vol 165 ◽  
pp. 53-58
Author(s):  
N Henriksen
Keyword(s):  
Field Work ◽  
Fully Integrated ◽  
General Overview ◽  
North East ◽  
Field Season ◽  
Geological Map ◽  
Field Campaigns ◽  
Council Of Ministers ◽  
North Greenland ◽  
Land Region

The second field season of the Geological Survey of Greenland's (GGU) mapping project in eastern North Greenland (1993–95) was carried out according to plan and with full accomplishment of all geoscientific goals. The programme aims at producing a general overview of the onshore geology of the Jokelbugten to Kronprins Christian Land region (78–81 °N) in eastern North Greenland (Fig. 1) to be compiled as sheet no. 9 in GGU's 1:500 000 geological map sheet series; this is the last remaining incomplete map sheet at this scale in North and North-East Greenland. The field work was initiated in 1993 with limited reconnaissance work (Henriksen, 1994a), and in 1994 the first of two more intensive field campaigns was carried out. In addition to establishing a general overview of the regional geology the work aims at obtaining an evaluation of the economic geological potential of the region, in respect of both minerals and hydrocarbons. Two glaciological programmes were fully integrated with the project: one was carried out by the Alfred Wegener Institute (AWi), Bremerhaven, Germany, while the other was partly based on a special grant from the Nordic Council of Ministers.

scholarly journals The geology of the north-eastern corner of Greenland - photogeological studies and 1993 field work

1994 ◽  
Vol 161 ◽  
pp. 21-33
Author(s):  
H.F Jepsen ◽  
J.C Escher ◽  
J.D Friderichsen ◽  
A.K Higgins
Keyword(s):  
Field Work ◽  
Tectonic Activity ◽  
Mobile Belt ◽  
North East ◽  
The North ◽  
Upper Proterozoic ◽  
North Eastern ◽  
Field Season ◽  
Upper Boundary ◽  
Middle Proterozoic

Late Archaean and Early Proterozoic crust-forming events in North-East and eastern North Greenland were succeeded by Middle Proterozoic sedimentation and volcanic activity; Late Proterozoic through Tertiary sedimentation was interrupted by several periods of tectonic activity, including the Caledonian orogeny in East Greenland and the Mesozoic deformation of the Wandel Hav mobile belt. Photogeological studies helped pinpoint areas of special interest which were investigated during the short 1993 field season. Insights gained during field work include: the nature of the crystalline basement terrain in the Caledonian fold belt, redefinition of the upper boundary of the Upper Proterozoic Rivieradal sandstones, revision of Caledonian nappe terminology, and the northern extension of the Caledonian Storstrømmen shear zone.

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