Relevant bibliographies by topics / Givetian S.E. Shetland Basin

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books

Academic literature on the topic 'Givetian S.E. Shetland Basin'

Author: Grafiati
Published: 4 June 2021
Last updated: 10 February 2022

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Givetian S.E. Shetland Basin.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Journal articles on the topic "Givetian S.E. Shetland Basin"

1

Marshall, J. E. A. "Devonian miospores from Papa Stour, Shetland." Transactions of the Royal Society of Edinburgh: Earth Sciences 79, no. 1 (1988): 13–18. http://dx.doi.org/10.1017/s0263593300014073.

Full text
Abstract:
ABSTRACTDevonian miospores have been discovered in the previously poorly dated Old Red Sandstone volcanic sequence of Papa Stour. They occur at two sites in minor sedimentary deposits between the lavas, and fossil fish remains are also present. The age range of the miospores is mid Eifelian to early Givetian, probably more specifically late Eifelian and from a position close to the Achanarras horizon. This allows a correlation of the Papa Stour volcanic sequence with that of the Upper Stromness Flags of Orkney and not the tuffaceous horizons in the Eday Sandstones. The good preservation and composition of the miospores indicate a close similarity to other Orcadian Basin sediments and support the view that the Old Red Sandstone sequences W of the Melby Fault have affinities with the Orkney and Caithness successions rather than with Shetland. The age of the volcanic sequence also provides a valuable datum point for plate tectonic models based on the geochemistry of Old Red Sandstone lavas.
APA, Harvard, Vancouver, ISO, and other styles
2

WENDT, JOBST, BERND KAUFMANN, ZDZISLAW BELKA, CHRISTIAN KLUG, and STEFAN LUBESEDER. "Sedimentary evolution of a Palaeozoic basin and ridge system: the Middle and Upper Devonian of the Ahnet and Mouydir (Algerian Sahara)." Geological Magazine 143, no. 3 (March 30, 2006): 269–99. http://dx.doi.org/10.1017/s0016756806001737.

Full text
Abstract:
The Ahnet and Mouydir regions of southern Algeria are part of one of the world's largest, almost undeformed exposures of Palaeozoic rocks which exemplify a hitherto poorly known early Variscan development of a Devonian basin and ridge system. This area includes a series of intracratonic basins along the northern margin of the West African Craton which consists (from W to E) of the Reggane Basin, Azel Matti Ridge, Ahnet Basin, Foum Belrem Ridge and Mouydir Basin. The depositional and palaeogeographic interpretation is based on 71 sections in this region, which for the first time were biostratigraphically calibrated by means of conodonts, goniatites and brachiopods. The structural evolution during Devonian times was probably controlled by reactivation of ancient N–S- to NW–SE-running faults in the Precambrian basement, which caused differential subsidence and uplift of a previously largely unstructured siliciclastic shelf. A hiatus during Emsian times indicates widespread emergence during this interval. The entire area was flooded during the earliest Eifelian, when the first vestiges of the Azel Matti Ridge become evident by stratigraphic condensation. The palaeogeographic differentiation is most apparent during the Givetian, when a shoal with reduced carbonate sedimentation was established on the Azel Matti Ridge passing towards the west and east into basinal environments of the Reggane and Ahnet basins, respectively. The Foum Belrem Ridge is distinguished by increased subsidence during the early Givetian and by revived uplift during the late Givetian. In the Mouydir Basin further east, up to 1000 m of shales were deposited during the Givetian. The early Frasnian is marked by the ubiquitous sedimentation of black shales and bituminous styliolinites. These lithologies occur repeatedly already during the Middle Devonian and document intermittent anoxic conditions. The basin and ridge topography is levelled by the shallowing-up sequence of up to 1400 m thick upper Frasnian and Famennian shales which grade into a deltaic sequence of uppermost Famennian/Tournaisian sandstones. The up to now only vaguely discriminated lithostratigraphic formations of the Devonian have been biostratigraphically defined in suitable type sections.
APA, Harvard, Vancouver, ISO, and other styles
3

SARTENAER, Paul. "Revision of the rhynchonellid brachiopod genus Ripidiorhynchus SARTENAER." Geologica Belgica 3, no. 3-4 (October 1, 2001): 191–213. http://dx.doi.org/10.20341/gb.2014.029.

Full text
Abstract:
Many species, subspecies and forms assigned to Ripidiorhynchus SARTENAER 1966 do not belong to it and give it an overextended published stratigraphic range of Givetian to Lower Carboniferous. Eight new genera are proposed: Kedridorhynchus [type species K. cedarensis (STAINBROOK 1942); late Givetian], Poleomesorhynchus [type species P. gregeri (BRANSON 1923); early Frasnian], Hypselororhynchus [type species H. farsani (BRICE 1977); middle-late Frasnian], Porthmorhynchus [type species P. ferquensis (GOSSELET 1887); middle-late Frasnian], Paropamisorhynchus [type species P. kotalensis (BRICE 1971); late Frasnian], Saxulirostrum [type species S. saxatile (HALL 1867); late Frasnian], Piridiorhynchus [type species P. confinium n. sp.; earliest Famennian], Orophomesorhynchus [type species O. huotinus (de VERNEUIL 1845); early Famennian]. Following revision of Ripidiorhynchus a new zone is introduced at the base of the Famennian based on Piridiorhynchus confinium in the southeastern and eastern parts of Dinant Basin. Some attention is also devoted to the alleged overlapping of the Frasnian/ Famennian boundary by Ripidiorhynchus.
APA, Harvard, Vancouver, ISO, and other styles
4

Hughes, Stephen, Penny J. Barton, and David Harrison. "Exploration in the Shetland‐Faeroe Basin using densely spaced arrays of ocean‐bottom seismometers." GEOPHYSICS 63, no. 2 (March 1998): 490–501. http://dx.doi.org/10.1190/1.1444350.

Full text
Abstract:
Recent exploration activity in the peripheral regions of the Shetland‐Faeroe Basin, offshore northwest Scotland, has led to the discovery of some of the largest oil reserves on the United Kingdom (UK) continental shelf. We present results from two ocean‐bottom seismometer profiles acquired by Mobil North Sea Ltd. across the center of the Shetland‐Faeroe Basin. These data provide a powerful tool for delineating long‐wavelength velocity variations and thus have potential for reducing the nonuniqueness associated with conventional seismic exploration methods. Analysis of the first‐arrival traveltime data using both forward and inverse ray‐based techniques produces a well constrained velocity‐depth model of the basin fill. We estimate that the uncertainty in the velocity structure is ±5% from a series of trial and error perturbations applied to the final models. The velocity structure of the Faeroe Basin has three principal layers: (1) a near‐surface layer with velocities in the range 1.6 to 2.2 km/s, (2) a 3.0–3.2 km/s layer which is characterized by a northwards structural pinch out in the center of the basin, and (3) a deeper laterally heterogeneous layer with velocities in the range 3.8 to 4.2 km/s. In the northwestern portion of the basin, a high velocity (5.0 km/s) basaltic layer is imaged dipping toward the southeast at a depth of 2–3 km. The basement is mapped at a depth of 7–9 km in the center of the basin. Gravity modeling provides independent corroboration of our models through the application of a velocity‐density relationship obtained from a synthesis of physical property measurements. Reflections from the Moho indicate a crustal thickness of 18 ± 3 km, suggesting that the basin is underlain by highly attenuated continental crust, but the velocities in the basement are closer to those of the Faeroe Islands basalts than the expected Lewisian gneiss, suggesting that it may be highly intruded.
APA, Harvard, Vancouver, ISO, and other styles
5

Lee, D. K., Y. K. Jin, Y. Kim, and S. H. Nam. "Seismicity and tectonics around the northern Antarctic Peninsula from King Sejong station data." Antarctic Science 12, no. 2 (June 2000): 196–204. http://dx.doi.org/10.1017/s0954102000000250.

Full text
Abstract:
Local earthquakes recorded at the King Sejong station (62° 13′31″S, 58° 47′07″W) from 1995–96 have been analysed to study the seismicity and tectonics around the northern Antarctic Peninsula. The nature of shallow-focused normal fault earthquakes along the South Shetland Platform is still unclear. Dominant normal fault earthquakes and minor strike-slip earthquakes in the Eastern Bransfield Basin suggest 1) ongoing extension, and 2) transtensional stress transmitted from the Antarctic–Scotia transform boundaries, the South Scotia Ridge and the Shackleton Fracture Zone. A lack of seismicity in the Central Bransfield Basin supports that active seismicity in the Eastern Bransfield Basin is not a result of subduction along the South Shetland Trench. Shallow focused earthquakes have been observed along the NW–SE trending gravity low line between the Central and the Eastern Bransfield Basins that approximately coincides with the landward projection of a fracture zone in the former Phoenix Plate.
APA, Harvard, Vancouver, ISO, and other styles
6

Hansen, Bogi, Turið Poulsen, Karin Margretha Húsgarð Larsen, Hjálmar Hátún, Svein Østerhus, Elin Darelius, Barbara Berx, Detlef Quadfasel, and Kerstin Jochumsen. "Atlantic water flow through the Faroese Channels." Ocean Science 13, no. 6 (November 13, 2017): 873–88. http://dx.doi.org/10.5194/os-13-873-2017.

Full text
Abstract:
Abstract. Through the Faroese Channels – the collective name for a system of channels linking the Faroe–Shetland Channel, Wyville Thomson Basin, and Faroe Bank Channel – there is a deep flow of cold waters from Arctic regions that exit the system as overflow through the Faroe Bank Channel and across the Wyville Thomson Ridge. The upper layers, in contrast, are dominated by warm, saline water masses from the southwest, termed Atlantic water. In spite of intensive research over more than a century, there are still open questions on the passage of these waters through the system with conflicting views in recent literature. Of special note is the suggestion that there is a flow of Atlantic water from the Faroe–Shetland Channel through the Faroe Bank Channel, which circles the Faroes over the slope region in a clockwise direction. Here, we combine the observational evidence from ship-borne hydrography, moored current measurements, surface drifter tracks, and satellite altimetry to address these questions and propose a general scheme for the Atlantic water flow through this channel system. We find no evidence for a continuous flow of Atlantic water from the Faroe–Shetland Channel to the Faroe Bank Channel over the Faroese slope. Rather, the southwestward-flowing water over the Faroese slope of the Faroe–Shetland Channel is totally recirculated within the combined area of the Faroe–Shetland Channel and Wyville Thomson Basin, except possibly for a small release in the form of eddies. This does not exclude a possible westward flow over the southern tip of the Faroe Shelf, but even including that, we estimate that the average volume transport of a Circum-Faroe Current does not exceed 0.5 Sv (1 Sv = 106 m3 s−1). Also, there seems to be a persistent flow of Atlantic water from the western part of the Faroe Bank Channel into the Faroe–Shetland Channel that joins the Slope Current over the Scottish slope. These conclusions will affect potential impacts from offshore activities in the region and they imply that recently published observational estimates of the transport of warm water towards the Arctic obtained by different methods are incompatible.
APA, Harvard, Vancouver, ISO, and other styles
7

Stoker, M. S., R. Harland, and D. K. Graham. "Glacially influenced basin plain sedimentation in the southern Faeroe-Shetland Channel, northwest United Kingdom continental margin." Marine Geology 100, no. 1-4 (September 1991): 185–99. http://dx.doi.org/10.1016/0025-3227(91)90232-s.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Baccar, M. Ben, B. Fritz, and O. Brévart. "Geochemical modelling of late diagenetic processes in the Brent Sandstone, Alwyn South area (East Shetland Basin, North Sea)." Chemical Geology 109, no. 1-4 (October 1993): 135–47. http://dx.doi.org/10.1016/0009-2541(93)90067-s.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

STREEL, Maurice, Frédéric BOULVAIN, Michiel DUSAR, Stanislas LOBOZIAK, and Philippe STEEMANS. "Updating Frasnian miospore zonation from the Boulonnais (Northern France) and comparison with new data from the Upper Palaeozoic cover on the Brabant Massif (Western Belgium)." Geologica Belgica 24, no. 1-2 (May 20, 2021): 69–84. http://dx.doi.org/10.20341/gb.2020.024.

Full text
Abstract:
Accurate palyno-analysis by S. Loboziak (from 1980 to 1983) of 28 samples from the Upper Givetian to the Middle Frasnian Blacourt, Beaulieu and Ferques Formations and of 44 samples of the Upper Frasnian to the Lower Famennian Hydrequent Formation are re-evaluated. Chelinospora concinna, Verrucosisporites bulliferus, Cirratriradites jekhowskyi, Lophozonotriletes media first occurrences are major criteria for Lower and Middle Frasnian, well calibrated by conodonts. Cymbosporites acanthaceus, Rugospora bricei, Grandispora gracilis, Diducites plicabilis, Corbulispora vimineus first occurrences allow to subdivide the Upper Frasnian where conodonts are poorly present. Samarisporites triangulatus versus Auroraspora pseudocrista taxonomy and stratigraphic significance are discussed. The reconnaissance borehole Nieuwkerke-De Seule (95W152), near the limit of the Upper Palaeozoic subcrop on the Brabant Massif (West Flanders, Belgium, 75 km east of the Boulonnais), which has intersected conodont-dated Givetian/Frasnian boundary at the transition between the Bois de Bordeaux and Bovesse Formations, contained poorly preserved miospores attributed to the triangulatus–concinna (TCo) Oppel Zones. In the nearby Nieuwkerke-Noordhoek borehole (95W153), strata also assigned to the Bovesse Formation yielded better preserved miospores which demonstrate a close succession of triangulatus–concinna (TCo) and bulliferus–jekhowskyi (BJ) Oppel Zones at the transition Lower–Middle Frasnian, also known in the Beaulieu Formation in the Boulonnais. Samples from the Heuvelland groundwater monitoring well (95W175), 10 km north of Nieuwkerke, contain the bricei-acanthaceus (BA) Oppel Zone suggesting a late Frasnian age, also known in the Hydrequent Formation in the Boulonnais area and in the Booischot Formation in the Booischot borehole (59E146) from the Campine Basin (Belgium). International correlation using Frasnian miospore zonation is attempted between the Pripyat Depression in Belarus, the Timan–Pechora province in Russia and North-West China.
APA, Harvard, Vancouver, ISO, and other styles
10

Fruehn, Juergen, Moritz M. Fliedner, and Robert S. White. "Integrated wide‐angle and near‐vertical subbasalt study using large‐aperture seismic data from the Faeroe—Shetland region." GEOPHYSICS 66, no. 5 (September 2001): 1340–48. http://dx.doi.org/10.1190/1.1487079.

Full text
Abstract:
Acquiring large‐aperture seismic data (38 km maximum offset) along a profile crossing the Faeroe—Shetland basin in the North Atlantic enables us to use wide‐angle reflections and refractions, in addition to conventional streamer data (0–6 km), for subbasalt imaging. The wide‐angle results are complemented and confirmed by images obtained from the conventional near‐vertical‐offset range. Traveltime tomography applied to the wide‐angle data shows a low‐velocity layer (3.5–4.5 km/s) underneath southeastward‐thinning lava flows, suggesting a 2.5–3.0‐km‐thick sedimentary layer. The velocity model obtained from traveltime tomography is used to migrate wide‐angle reflections from large offsets that arrive ahead of the water‐wave cone. The migrated image shows base‐basalt and sub—basalt reflections that are locally coincident with the tomographic boundaries. Application of a new multiple suppression technique and controlled stacking of the conventional streamer data produces seismic sections consistent with the wide‐angle results. Prestack depth migration of the near‐vertical offsets shows a continuous base‐basalt reflection and a clearly defined termination of the basalt flows.
APA, Harvard, Vancouver, ISO, and other styles

Dissertations / Theses on the topic "Givetian S.E. Shetland Basin"

1

De, Silva Sriyanee. "The petrological evolution of the Devonian South East Shetland Basin." Thesis, University of Oxford, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.236333.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Books on the topic "Givetian S.E. Shetland Basin"

1

Great Britain. Air Accidents Investigation Branch. Report on the accident to Sikorsky S-61N, G-BEWL at Brent Spar, East Shetland Basin on 25 July 1990. London: HMSO, 1991.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
2

Report of the Accident to Sikorsky S-61n, G-Bewl at Brent Spar, East Shetland Basin on 25 July 1990 (Aircraft Accident Report). Stationery Office Books, 1991.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography