Basin evolution in the Davis Strait area (West Greenland and conjugate East Baffin/Labrador passive margins) from thermostratigraphic and subsidence modelling of well data: Implications for tectonic evolution and petroleum systems

2014 ◽  
Vol 62 (4) ◽  
pp. 311-329 ◽  
Author(s):  
E. D. McGregor ◽  
S. B. Nielsen ◽  
R. A. Stephenson
Keyword(s):  
Tectonic Evolution ◽  
Basin Evolution ◽  
West Greenland ◽  
Petroleum Systems ◽  
Passive Margins ◽  
Davis Strait ◽  
Well Data

scholarly journals Speculative petroleum systems of the Punta del Este Basin (offshore Uruguay)

2017 ◽  
Vol 47 (4) ◽  
pp. 645-656 ◽  
Author(s):  
Ethel Morales ◽  
Hung Kiang Chang ◽  
Matías Soto ◽  
Gerardo Veroslavsky ◽  
Bruno Conti ◽  
...  
Keyword(s):  
Continental Margin ◽  
Late Cretaceous ◽  
Petroleum System ◽  
The Other ◽  
Basin Evolution ◽  
Petroleum Systems ◽  
Sedimentary Evolution ◽  
Seismic Sections ◽  
Well Data ◽  
Pelotas Basin

ABSTRACT: The Uruguayan continental margin was generated as the result of the breakup of Gondwana and, later, the opening of the South Atlantic Ocean, which began in the Jurassic. Three major areas of Meso-Cenozoic sedimentation are located in the Uruguayan offshore: the Punta del Este Basin, the southernmost sector of the Pelotas Basin and the Oriental del Plata Basin. These basins share the classical stages of tectono-sedimentary evolution of the other Atlantic basins, including the prerift (Paleozoic), rift (Jurassic-Early Cretaceous), transition (Barremian-Aptian) and postrift (Aptian-present) phases. Based on the analysis of basin evolution through seismic sections and well data as well as on the establishment of analogies with productive Atlantic basins, four speculative petroleum systems are proposed for the Punta del Este Basin: 1) Marine petroleum system of the prerift stage: Devonian/Permian-Devonian/Permian(?), 2) Lacustrine petroleum system of the synrift stage: Neocomian-Neocomian(?), 3) Marine petroleum system of the Cretaceous postrift: Aptian-Late Cretaceous(?), 4) Marine petroleum system of the Cenozoic postrift: Paleocene-Paleogene/Neogene(?).

Archaean and Palaeoproterozoic orogenic processes: Danish Lithosphere Centre studies of the Nagssugtoqidian orogen, West Greenland

1998 ◽  
pp. 100-110
Author(s):  
Flemming Mengel ◽  
Jeroen A. M. Van Gool ◽  
Eirik Krogstad And the 1997 field crew
Keyword(s):  
Tectonic Evolution ◽  
Original Series ◽  
Research Results ◽  
West Greenland ◽  
Northern Margin ◽  
The Third ◽  
Field Season ◽  
Funding Cycle

NOTE: This article was published in a former series of GEUS Bulletin. Please use the original series name when citing this article, for example: Mengel, F., van Gool, J. A. M., & and the 1997 field crewE. K. (1998). Archaean and Palaeoproterozoic orogenic processes: Danish Lithosphere Centre studies of the Nagssugtoqidian orogen, West Greenland. Geology of Greenland Survey Bulletin, 180, 100-110. https://doi.org/10.34194/ggub.v180.5093 _______________ The Danish Lithosphere Centre (DLC) was established in 1994 and one of its principal objectives in the first five-year funding cycle is the study of Precambrian orogenic processes. This work initially focused on the thermal and tectonic evolution of the Nagssugtoqidian orogen of West Greenland. During the first two field seasons (1994 and 1995) most efforts were concentrated in the southern and central portions of the orogen. The 1997 field season was the third and final in the project in the Nagssugtoqidian orogen and emphasis was placed on the central and northern parts of the orogen in order to complete the lithostructural study of the inner Nordre Strømfjord area and to investigate the northern margin of the orogen (NNO in Fig. 1). This report is partly a review of selected research results obtained since publication of the last Review of Greenland activities (van Gool et al. 1996), and also partly a summary of field activities in Greenland during the summer of 1997.

scholarly journals Potential hydrocarbon reservoirs of Albian–Paleocene age in the Nuussuaq Basin, West Greenland

2017 ◽  
pp. 49-52
Author(s):  
Morten L. Hjuler ◽  
Niels H. Schovsbo ◽  
Gunver K. Pedersen ◽  
John R. Hopper
Keyword(s):  
Hydrocarbon Exploration ◽  
Reservoir Rock ◽  
High Quality ◽  
West Greenland ◽  
Petroleum Systems ◽  
Oil Seeps ◽  
Reservoir Potential ◽  
Volcanic Reservoirs ◽  
High Quality Reservoir ◽  
Volcanic Series

The onshore Nuussuaq Basin in West Greenland is important for hydrocarbon exploration since many of the key petroleum systems components are well exposed and accessible for study. The basin has thus long served as an analogue for offshore exploration. The discovery of oil seeps on Disko, Nuussuaq, Ubekendt Ejland, and Svartenhuk Halvø (Fig. 1) in the early 1990s resulted in exploration onshore as well. In several wells, oil stains were observed in both the siliciclastic sandstone and in the volcanic series. An important aspect of any petroleum system is a high quality reservoir rock. The aim of this paper is to review petrophysical aspects of the reservoir potential of key stratigraphic intervals within the Nuussuaq and West Greenland Basalt groups. Reservoir parameters and porosity–permeability trends for potential siliciclastic and volcanic reservoirs within the relevant formations of the Nuussuaq Basin are discussed below.

Early Tertiary basalts from the Labrador Sea floor and Davis Strait region

1989 ◽  
Vol 26 (5) ◽  
pp. 956-968 ◽  
Author(s):  
D. B. Clarke ◽  
B. I. Cameron ◽  
G. K. Muecke ◽  
J. L. Bates
Keyword(s):  
Volcanic Rocks ◽  
Labrador Sea ◽  
Baffin Island ◽  
Nd Isotope ◽  
Sea Floor ◽  
West Greenland ◽  
Depleted Mantle ◽  
Davis Strait ◽  
Isotope Systematics ◽  
Seawater Exchange

Fine- to medium-grained, phyric and aphyric basalt samples from ODP Leg 105, site 647A, in the Labrador Sea show little evidence of alteration. Chemically, these rocks are low-potassium (0.01–0.09 wt.% K2O), olivine- to quartz-normative tholeiites that compare closely with the very depleted terrestrial Paleocene volcanic rocks in the Davis Strait region of Baffin Island and West Greenland. However, differences exist in the Sr–Nd isotope systematics of the two suites; the Labrador Sea samples have ε Nd values (+9.3) indicative of a more depleted source, and are higher in 87Sr/86Sr (0.7040), relative to the Davis Strait basalts (ε Nd +2.54 to +8.97; mean 87Sr/86Sr 0.7034). The higher 87Sr/86Sr in the Labrador Sea samples may reflect seawater exchange despite no petrographic evidence for significant alteration. The Labrador Sea and early Davis Strait basalts may have been derived from a similar depleted mantle source composition; however, the later Davis Strait magmas were generated from a different mantle. None of the Baffin Island, West Greenland, or Labrador Sea samples show unequivocal geochemical evidence for contamination with continental crust.

scholarly journals 3D structure and formation of hydrothermal vent complexes at the Paleocene-Eocene transition, the Møre Basin, mid-Norwegian margin

2017 ◽  
Vol 5 (3) ◽  
pp. SK65-SK81 ◽  
Author(s):  
Sigurd Kjoberg ◽  
Tobias Schmiedel ◽  
Sverre Planke ◽  
Henrik H. Svensen ◽  
John M. Millett ◽  
...  
Keyword(s):  
Hydrothermal Vent ◽  
Seismic Analysis ◽  
3D Structure ◽  
Morphological Characteristics ◽  
3D Seismic ◽  
Petroleum Systems ◽  
Time Period ◽  
Thermal Maximum ◽  
Norwegian Margin ◽  
Well Data

The mid-Norwegian margin is regarded as an example of a volcanic-rifted margin formed prior to and during the Paleogene breakup of the northeast Atlantic. The area is characterized by the presence of voluminous basaltic complexes such as extrusive lava and lava delta sequences, intrusive sills and dikes, and hydrothermal vent complexes. We have developed a detailed 3D seismic analysis of fluid- and gas-induced hydrothermal vent complexes in a [Formula: see text] area in the Møre Basin, offshore Norway. We find that formation of hydrothermal vent complexes is accommodated by deformation of the host rock when sills are emplaced. Fluids are generated by metamorphic reactions and pore-fluid expansion around sills and are focused around sill tips due to buoyancy. Hydrothermal vent complexes are associated with doming of the overlying strata, leading to the formation of draping mounds above the vent contemporary surface. The morphological characteristics of the upper part and the underlying feeder structure (conduit zone) are imaged and studied in 3D seismic data. Well data indicate that the complexes formed during the early Eocene, linking their formation to the time of the Paleocene-Eocene thermal maximum at c. 56 Ma. The well data further suggest that the hydrothermal vent complexes were active for a considerable time period, corresponding to a c. 100 m thick transition zone unit with primary Apectodinium augustum and redeposited very mature Cretaceous and Jurassic palynomorphs. The newly derived understanding of age, structure, and formation of hydrothermal vent complexes in the Møre Basin contributes to the general understanding of the igneous plumbing system in volcanic basins and their implications for the paleoclimate and petroleum systems.

scholarly journals Ocena wpływu nasuwającego się górotworu karpackiego na przebieg procesów naftowych w utworach jego podłoża w rejonie Rzeszowa

Nafta-Gaz ◽  
2021 ◽  
Vol 77 (6) ◽  
pp. 351-365
Author(s):  
Karol Spunda ◽  
◽  
Tomasz Słoczyński ◽  
Krzysztof Sowiżdżał ◽  
◽  
...  
Keyword(s):  
Tectonic Evolution ◽  
Geological Structure ◽  
Source Rocks ◽  
Petroleum Exploration ◽  
Special Role ◽  
Petroleum Systems ◽  
Geological Processes ◽  
Lower Palaeozoic ◽  
Outer Carpathians

The article presents the concept of petroleum systems modeling in the area with complex fold-thrust belt structure. The aim of the study was to verify the views on the influence of the overtrusting Carpathian orogen on the course of petroleum processes in the basement (Meso-Palaeozoic) formations. The project was implemented in the marginal zone of the Skole Unit (Outer Carpathians) overlapping various structural and tectonic units of the basement. The area of Rzeszów city was selected as it presents adequate complexity of the geological structure to meet assumed methodological objectives of the project and, at the same time, provides relatively vast amount of geological data available which creates a conditions for a comprehensive approach. The study was carried out using the Dynel 2D and PetroMod 2D software. The course of the structural and tectonic evolution of the area was reconstructed in 5 stages, the results of which were subsequently applied in a dynamic modeling of the petroleum systems. The modeling results made it possible to recreate and analyze the course of a complex geological processes, the effects of which are manifested, among others, by the time and amounts of generated hydrocarbons as well as the dynamics of expulsion, migration and accumulation processes. The results show the course of petroleum processes in each stage of the petroleum basin evolution, revealing a special role of thrust tectonic of Outer Carpathians on basement formations. For the adopted assumptions of the structural and tectonic evolution, the generation of hydrocarbons by Lower Palaeozoic source rocks was initiated with the overthrusting of the Carpathians. This increases the chances of their accumulation in reservoir intervals sealed by an overthrusting orogen. This is a positive premise in the context of petroleum exploration in the area.

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