Organic geochemistry and source potential of the lacustrine shales of the Upper Triassic - Lower Jurassic Kap Stewart Formation, East Greenland

1990 ◽  
Vol 7 (4) ◽  
pp. 428-443 ◽  
Author(s):  
Gregers Dam ◽  
Flemming G. Christiansen
Keyword(s):  
Organic Geochemistry ◽  
Lower Jurassic ◽  
Upper Triassic ◽  
East Greenland

scholarly journals Organic geochemistry of the Lower Jurassic Sortehat Formation, Jameson Land, East Greenland

1994 ◽  
Vol 164 ◽  
pp. 5-18
Author(s):  
H Krabbe ◽  
F.G Christiansen ◽  
G Dam ◽  
S Piasecki ◽  
L Stemmerik
Keyword(s):  
Brackish Water ◽  
Organic Geochemistry ◽  
Water Environment ◽  
Lower Jurassic ◽  
Hydrocarbon Generation ◽  
Data Set ◽  
East Greenland ◽  
Potential Biomarker ◽  
Biomarker Analysis ◽  
Brackish Water Environment

Biomarker analyses of Lower Jurassic shales from the Sortehat Formation, Jameson Land, central East Greenland carried out in combination with palynological studies demonstrate deposition in a fresh to brackish water environment, which became increasingly saline towards the top. The formation is regionally immature to early mature with respect to hydrocarbon generation, and the lowermost 2–20 m have a fair generation potential. Biomarker analysis of the brackish water part shows dominance of C16–C21 n-alkanes, high pristane/phytane ratios, high hopane/sterane ratios, high relative amounts of C29–C31 hopanes and C2717α-trisnorhopane. Steranes are dominated by C29 isomers. The organic matter is composed of bacteria, algae and land plants interpreted from biomarker distributions. The combined data set suggests that deposition took place during an overall rise in relative sea level.

scholarly journals Notes on Greenland trace fossils

1972 ◽  
Vol 49 ◽  
pp. 1-30
Author(s):  
R.G Bromley ◽  
U Asgaard
Keyword(s):  
Trace Fossils ◽  
Lower Jurassic ◽  
Upper Triassic ◽  
Trace Fossil ◽  
Morphological Description ◽  
Field Observations ◽  
Burrow System ◽  
Red Beds ◽  
Present Material ◽  
East Greenland

Freshwater Cruziana from the Upper Triassic of Jameson Land, East Greenland.An occurrence of well-preserved Cruziana problematica (Schindewolf) in Triassic red-beds in Jameson Land allows a more detailed morphological description of these trace fossils than has hitherto been possible. Rheotactic orientation of the traces indicates the direction of palaeocurrents in the area. C. problematica has previously been ascribed to branchiopod crustaceans, but the present material allows a narrowing of the field to Notostraca, and is supported by field observations of the living notostracan Lepidurus arcticus (Pallas).The burrows and microcoprolites of Glyphea rosenkrantzi, a Lower Jurassic palinuran crustacean from Jameson Land, East Greenland.In Toarcian sediments in Jameson Land, phosphatic concretions at certain horizons contain well preserved Glyphea rosenkrantzi. These crustaceans are confined to the fill of Thalassinoides burrow systems and it is therefore probable that the burrows were constructed by Glyphea. It is possibIe that associated microcoprolites of rod-like shape, without internal canals, may also be ascribed to the Glyphea.A large radiating burrow-system in Jurassic micaceous sandstones of Jameson Land, East Greenland. Large trace fossils consisting of more or less straight burrows radiating from a verticaI shaft are described from Jurassic sandstones of Jameson Land. The mica orientation of the sediment reveals the internal construction of the burrows and aids the interpretation of their mode of formation. The trace fossil has not been previously named and is designated Phoebichnus trochoides ichnogen. et ichnosp. nov.

scholarly journals Sedimentological studies of the Upper Triassic to Lower Jurassic succession in the Jameson Land Basin, central East Greenland

1989 ◽  
Vol 145 ◽  
pp. 75-79
Author(s):  
G Dam
Keyword(s):  
Petroleum Reservoirs ◽  
Lower Jurassic ◽  
Upper Triassic ◽  
British Petroleum ◽  
East Greenland ◽  
Research Fellowship ◽  
Fellowship Programme ◽  
Petroleum Development ◽  
Stratigraphic Interval

Sedimentological studies of the Upper Triassic to Lower Jurassic succession in central East Greenland were initiated in 1987 as a three-year research fellowship programme supported by British Petroleum Development, London (Dam, 1988). The study is primarilya lithofacies analysis, but ichnology, palynology sourcerock analysis, porosity/permeability analysis and diagenetic studies are also included in the programme. The stratigraphic interval includes the Kap Stewart and Neill Klinter Formations which have many features in common with stratigraphically equivalent formations in offshore mid- and northem Norway that form some of the most important potential petroleum reservoirs in these areas.

scholarly journals Sedimentological and stratigraphical analysis of the Upper Triassic - Lower Jurassic succession in Jameson Land, East Greenland - a summary

1993 ◽  
Vol 159 ◽  
pp. 53-58
Author(s):  
G Dam
Keyword(s):  
Predictive Models ◽  
Lower Jurassic ◽  
Upper Triassic ◽  
East Greenland ◽  
Sequence Stratigraphic ◽  
Research Fellowship ◽  
Fellowship Programme ◽  
History Of ◽  
The Subject ◽  
Northern North Sea

As part of ongoing studies of Mesozoic basin development and hydrocarbon potential in East Greenland, a three-year research fellowship programme was initiated in the summer of 1987. The subject of the study was the Upper Triassic to Lower Jurassic succession in Jameson Land, East Greenland that includes the Kap Stewan and Neill Klinter Formations (Dam, 1988, 1989). This interval has many features in common with same of the largest coeval hydrocarbon reservoirs known in the northern North Sea; the outcrops in East Greenland provide an outstanding opportunity to study details of the architecture and sedimentary history of analogues of these reservoirs. The chief aim of the project was to establish detailed and regional facies models. and special emphasis was laid on the sequence stratigraphic relationships of the sediments in order to provide predictive models of reservoir characteristics. In addition the ichnology and source-rock potential of the formations have been studied. These studies have led to the establishment of a new formal lithostratigraphic and sequence stratigraphic scheme, and the unravelling of the palaeogeographic evolution of tile basin.

scholarly journals Sedimentological studies of the fluviatile-shallow marine Upper Triassic to Lower Jurassic succession in Jameson Land, East Greenland

1988 ◽  
Vol 140 ◽  
pp. 76-79
Author(s):  
G Dam
Keyword(s):  
Lower Jurassic ◽  
Upper Triassic ◽  
British Petroleum ◽  
East Greenland ◽  
Research Fellowship ◽  
Hydrocarbon Reservoir ◽  
Fellowship Programme ◽  
Order Of Magnitude ◽  
Petroleum Development ◽  
Sand Bodies

A three-year research fellowship programme supported by British Petroleum Development, London, was initiated in the summer of 1987. The main subject of the study is the Upper Triassic to Lower Jurassic succession in Jameson Land, East Greenland. This stratigraphic interval includes the Kap Stewart and the Neill Klinter Formations which have many features in common with some of the largest coeval hydrocarbon reservoir formations known in N.W. Europe (e.g. Statfjord fieid). The core of the project is a lithofacies analysis but ichnology, palynology, source-rock analyses and porosity/permeability analyses will be included where relevant. If possible, corresponding intervals from the Norwegian continental shelf will be included in the project. The aim of the project is: (1) to provide detailed and regional facies models for the two formations. Special stress wiIl be laid on the physical stratigraphic relations in order to ascertain if regional unconformities are present and what order of magnitude they may represent. (2) to establish a reservoir geological model which might help in the understanding of comparable reservoirs in the Norwegian-Greenland region. Particulal' attention will be paid to the geometry ofindividual sand bodies.

scholarly journals MESOZOIC RADIOLARIANS FROM RHYTHMICALLY LAYERED SEDIMENTS OF THE RIMSKY-KORSAKOV ISLANDS (PETER THE GREAT BAY, JAPAN SEA) AND THEIR SIGNIFICANCE FOR DETERMINING THE TRIASSIC-JURASSIC BOUNDARY

2021 ◽  
pp. 39-54
Author(s):  
O.L. Smirnova ◽  
◽  
E.A. Bessonova ◽  
T.A. Emelyanova ◽  
◽  
...  
Keyword(s):  
Peter The Great Bay ◽  
Japan Sea ◽  
Research Area ◽  
Lower Jurassic ◽  
Upper Triassic ◽  
Peter The Great ◽  
Great Bay ◽  
The Pacific ◽  
Stratigraphic Division ◽  
First Time

The results of the biostratigraphic study based on the radiolarian analysis of the rhythmically layered terrigenous deposits from the Islands of the Rimsky-Korsakov Archipelago (Peter the Great Bay, Japan Sea) have been presented. These deposits are most similar to the medium-grained turbidites. For the first time the distribution and stratigraphic division of the boundary sediments of the upper Triassic and lower Jurassic separated by a marking layer were substantiated in the research area. On the basis of comparisons with isochronous zonal units of the Pacific and Tethyan areas in the upper Triassic sediments of the studied sections, layers with Globolaxtorum tozeri (upper Rhaetian) were established, and in the lower Jurassic zone Pantanellium tanuense Zone (Hettangian) was traced and layers with Parahsuum simplum (Sinemurian – Pliensbachian) were established.

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