scholarly journals Geophysical and petroleum geological activities in the Nuussuaq – Svartenhuk Halvø area 1994: promising results for an onshore exploration potential

1995 ◽  
Vol 165 ◽  
pp. 32-41
Author(s):  
F.G Christiansen ◽  
C Marcussen ◽  
J.A Chalmers
Keyword(s):  
Field Work ◽  
Source Rocks ◽  
Geochemical Data ◽  
Successful Completion ◽  
West Greenland ◽  
North West ◽  
Important Study ◽  
A Minor

After the successful completion of the 1993 field work and drilling programme in the Marraat area on western Nuussuaq (Fig. 1), including a subsequent logging and geophysical programme (see Christiansen et al., 1994a, b; Dam & Christiansen, 1994), a new picture of onshore ex­ploration opportunities has started to develop. Previously the onshore basins were only considered to have a minor exploration potential, if any at all. However, the Disko-Nuussuaq-Svartenhuk Halvo region has been an important study area because many of the key parameters (sedimentological, stratigraphical and organic geochemical data from the excellent outcrops) may be obtained for predicting the distribution of reservoir and source rocks in the neighbouring major offshore basins in North-West and West Greenland (Christiansen et al., 1992, I994c).

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.

Qaanaaq 2001: mineral exploration reconnaissance in North-West Greenland

2002 ◽  
pp. 133-143
Author(s):  
Bjørn Thomassen ◽  
Peter R. Dawes ◽  
Agnete Steenfelt ◽  
Johan Ditlev Krebs
Keyword(s):  
Mineral Exploration ◽  
Mining Industry ◽  
Field Work ◽  
Original Series ◽  
West Greenland ◽  
North West ◽  
Ice Caps ◽  
High Plateau ◽  
Set Up ◽  
Inland Ice

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., Dawes, P. R., Steenfelt, A., & Krebs, J. D. (2002). Qaanaaq 2001: mineral exploration reconnaissance in North-West Greenland. Geology of Greenland Survey Bulletin, 191, 133-143. https://doi.org/10.34194/ggub.v191.5141 _______________ Project Qaanaaq 2001, involving one season’s field work, was set up to investigate the mineral occurrences and potential of North-West Greenland between Olrik Fjord and Kap Alexander (77°10´N – 78°10´N; Fig. 1). Organised by the Geological Survey of Denmark and Greenland (GEUS) and the Bureau of Minerals and Petroleum (BMP), Government of Greenland, the project is mainly funded by the latter and has the overall goal of attracting the interest of the mining industry to the region. The investigated region – herein referred to as the Qaanaaq region – comprises 4300 km2 of ice-free land centred on Qaanaaq, the administrative capital of Qaanaap (Thule) municipality. Much of the region is characterised by a 500–800 m high plateau capped by local ice caps and intersected by fjords and glaciers. High dissected terrain occurs in Northumberland Ø and in the hinterland of Prudhoe Land where nunataks are common along the margin of the Inland Ice.

scholarly journals Field work in the north of the Ivisârtoq region, inner Godthåbsfjord, southern West Greenland

1983 ◽  
Vol 115 ◽  
pp. 49-56
Author(s):  
B Chadwick ◽  
M.A Crewe ◽  
J.F.W Park
Keyword(s):  
Field Work ◽  
Geological Survey ◽  
West Greenland ◽  
North West ◽  
The North ◽  
Field Investigations ◽  
New Findings ◽  
Host Rocks

The programme of field investigations in the north of the Ivisartoq region begun in 1981 by Chadwick & Crewe (1982) was continued in 1982. Julia Park began mapping the Taserssuaq granodiorite, its host rocks and the Ataneq fault in the north-west. Dur team was joined by D. Bellur, Geological Survey of India, nominally as an assistant. In this report we present only summary notes of new findings relevant to the interpretation of the geometry and chronology of this segment of the Archaean crust in southern West Greenland. We use the established terminology for the Archaean rocks of the Godthåbsfjord region.

A geochemical investigation into the resource potential of the Lawn Hill Platform, northern Australia

2020 ◽  
Vol 60 (2) ◽  
pp. 722
Author(s):  
Amber J. M. Jarrett ◽  
Adam E. H. Bailey ◽  
Christopher J. Boreham ◽  
Tehani Palu ◽  
Lisa Hall ◽  
...  
Keyword(s):  
Organic Geochemistry ◽  
Source Rocks ◽  
Geochemical Data ◽  
Northern Australia ◽  
Hydraulic Stimulation ◽  
Petroleum Potential ◽  
North West ◽  
North Eastern ◽  
Resource Exploration ◽  
Geochemical Investigation

The Lawn Hill Platform (LHP) is a sedimentary province in north-eastern Northern Territory and north-western Queensland that hosts a significant Paleoproterozoic–Mesoproterozoic sequence, often referred to as 'the ‘Isa Superbasin’, and includes the overlying South Nicholson Group. Shale gas resources and base-metals mineralisation are known in north-west Queensland, but the larger basin is underexplored. The Australian Government’s Exploring for the Future (EFTF) 2016−2020 program aims to boost resource exploration in northern Australia. New precompetitive geochemical data obtained in this program includes source rock geochemistry, kerogen kinetics, bitumen reflectance, biomarker and δ13C n-alkanes for understanding the petroleum potential, organic geochemistry of source rocks and fluids, stratigraphic correlations and mineralogy to determine the brittleness of shales. All data and derived reports are accessible on the EFTF portal (www.eftf.ga.gov.au), providing a central location for informed decision making. The results in this study demonstrate fair to excellent source rocks in multiple supersequences that are brittle and favourable to hydraulic stimulation. A comparison to the greater McArthur Basin demonstrates, that although there are many similarities in bulk geochemistry, LHP mudstones are largely heterogeneous, reflecting local variations that may be inherited from variations in contributing biomass, microbial reworking, depositional environment, sediment input and paleoredox conditions.

scholarly journals Field investigations in the Precambrian terrain of the Thule district, North-West Greenland

1979 ◽  
Vol 95 ◽  
pp. 14-22
Author(s):  
P.R Dawes
Keyword(s):  
Field Work ◽  
Crystalline Basement ◽  
Field Mapping ◽  
West Greenland ◽  
North West ◽  
Field Investigations ◽  
Precambrian Terrain ◽  
Outer Coast ◽  
Three Phases

The field mapping of the Precambrian crystalline basement and overlying Thule Group of the Thule district aimed at the production of a 1:500000 map sheet between 75°15'N and 78°N was continued in July and August (fig. 5). The field work was split up, due to the varying availability of transport facilities, into three phases. (1) The charter of a Bell 204 helicopter from Thule Air Base enabled mapping in western Inglefield Land, and in the nunatak terrain of Prudhoe Land and Melville Bugt. (2) Investigation of the outer coast of western Melville Bugt was carried out with the aid of GGU cutter K. J. V. Steenstrup. (3) Detailed stratigraphical work in the middle and upper part of the Thule Group was based on foot traverses from Thule Air Base.

scholarly journals A minor carbonatite occurrence in southern West Greenland: the Tupertalik intrusion

1982 ◽  
Vol 110 ◽  
pp. 38-43
Author(s):  
L.M Larsen ◽  
A.K Pedersen
Keyword(s):  
High Mountains ◽  
West Greenland ◽  
North West ◽  
A Minor ◽  
The Town

In addition to the two large carbonatite complexes of Cambrian age occurring in southern West Greenland, the Sarfartôq and Qaqarssuk complexes (Secher & Larsen, 1980; Gothenborg & Pedersen, 1975) a third small intrusion of carbonatite was found in 1971 during regional prospecting by Kryolitselskabet Øresund A/S. This intrusion is situated approximately 50 km east of the town Sukkertoppen, only 11 km north-north-west of the Qaqarssuk complex of which it may be regarded as a satellite (fig. 13). The outcrop measures only 500 m by 200 m. It is situated on a gently south-east sloping, relatively vegegation covered hillside in a depression between 800 m and 1000 m high mountains, the most prominent of which is Tupertalik ('the place with a tent') after which the intrusion is named.

scholarly journals 1:500 000 mapping of the Thule district, North-West Greenland

1976 ◽  
Vol 80 ◽  
pp. 23-28
Author(s):  
P.R Dawes
Keyword(s):  
Weather Conditions ◽  
Field Work ◽  
Economic Potential ◽  
West Greenland ◽  
North West ◽  
Field Investigations ◽  
Field Season ◽  
Logistic Support

Field investigations aimed at the produetion of a 1:500 000 map sheet of the Thule distriet were continued during August and early September. The unusuaIly poor weather conditions and the premature arrival of the winter's snowfall, reduced the season to some 20 effective working days. The field work was in two parts. At the beginning of the season a Jet Ranger helicopterwas chartered at Thule Air Base and four days were spent investigating nunatak and inland areas north of Savigsivik and Kap York and at the heads of Wolstenholme Fjord, Olrik Fjord and Inglefield Bredning. The second part was an investigation ofthe Proterozoic Thule Groupon Herbert ø, Northumberland Ø and Hakluyt Ø. Transport for this phase wasa locally hired boat from Avatak Henson of Moriussaq. Certain logistic support was supplied to H. R. Cooke who visited the Thule district at the end of the field season to assess the economic potential of various minerallocalities. Kurt Thomsen ably assisted both in Cooke's and the author's field programmes.

HYDROCARBON GENERATION AND EXPULSION FROM EARLY CRETACEOUS SOURCE ROCKS IN THE BROWSE BASIN, NORTH WEST SHELF, AUSTRALIA: A SMALL ANGLE NEUTRON SCATTERING STUDY

2004 ◽  
Vol 44 (1) ◽  
pp. 151 ◽  
Author(s):  
A.P. Radlinski ◽  
J.M. Kennard ◽  
D.S. Edwards ◽  
A.L. Hinde ◽  
R. Davenport
Keyword(s):  
Neutron Scattering ◽  
Pore Size ◽  
Source Rock ◽  
Early Cretaceous ◽  
Small Angle ◽  
Small Angle Neutron Scattering ◽  
Source Rocks ◽  
Geochemical Data ◽  
Hydrocarbon Generation ◽  
North West

Small Angle Neutron Scattering (SANS) analyses were carried out on 165 potential source rocks of Late Jurassic–Early Cretaceous age from nine wells in the Browse Basin (Adele–1, Argus–1, Brecknock South–1, Brewster–1A, Carbine–1, Crux–1, Dinichthys–1, Gorgonichthys–1 and Titanichthys–1). Samples from Brewster–1A and Dinichthys–1 were also analysed using the Ultra Small Angle Neutron Scattering (USANS) technique.The SANS/USANS data detect the presence of generated bitumen and mobile hydrocarbons in pores and are pore-size specific. As the pore-size range in mudstones extends from about 0.001–30 μm, the presence of bitumen in the small pores detected by SANS indicates the depth of onset of hydrocarbon generation, whereas the presence of bitumen and mobile hydrocarbons in the largest pores detected by USANS indicates a significant saturation and the onset of expulsion.Although geochemical data imply the existence of a potential gas and oil source rock in the Lower Cretaceous section (Echuca Shoals and Jamieson Formations), the SANS/USANS data indicate significant generation but little or no expulsion. This source limitation may explain poor exploration success for liquid hydrocarbons in the area. The SANS/USANS data provide evidence of intra- and inter-formational hydrocarbon migration or kerogen kinetics barriers. There is no evidence of an oil charge to the Berriasian Brewster Sandstone from the Echuca Shoals Formation, although some gas charge in Brewster–1A is possible. This novel microstructural technique can be used to independently calibrate and refine source rock generation/expulsion scenarios derived from geochemistry modelling.

scholarly journals Eastern North Greenland 1993-1995 - a new 1:500 000 mapping project

1994 ◽  
Vol 160 ◽  
pp. 47-51
Author(s):  
N Henriksen
Keyword(s):  
Field Work ◽  
Geological Survey ◽  
East Greenland ◽  
West Greenland ◽  
North West ◽  
General Overview ◽  
North Greenland

The Geological Survey of Greenland (GGU) initiated in 1964 a 1:500000 mapping programme to produce a general overview of the onshore geology of all the ice-free areas of Greenland. So far 10 of a total of 14 planned map sheets have been published, and one additional sheet for which field work has been completed is under compilation. Most of Greenland is therefore now covered by map sheets of this series and only three areas remain to be covered: in North-West Greenland (sheet 6), in eastern North Greenland (sheet 9) and in East Greenland (sheet 11). Eastern North Greenland (map sheet no. 9; Fig. 1) is the target of the present project, with planned field work from 1993–1995. The first season (1993) was used for logistical preparation and geological reconnaissance in advance of the more intensive field work in the two following seasons (1994–95).

scholarly journals Field work on Precambrian anorthosite and contact rocks, Smithson Bjerge, Inglefield Bredning, North-West Greenland

1979 ◽  
Vol 95 ◽  
pp. 22-26
Author(s):  
A.P Nutman
Keyword(s):  
Personal Communication ◽  
Field Work ◽  
West Greenland ◽  
North West ◽  
Precambrian Rocks ◽  
North East

This report gives an account of geological investigations and 1:25000 scale mapping of Precambrian rocks of Smithson Bjerge, at the head of Inglefield Bredning, about 150 km north-east of Thule Air Base. Previous work on this area was restricted to a few days of reconnaissance work in 1971 and several helicopter landings in 1975 (Dawes, 1972, and personal communication, 1978). Table 1 gives the principle geological eveJ;lts of the area and results of the mapping are given in outline in fig. 8.

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