The Relationship of Structure and Sequence Stratigraphy in the Development and Morphology of Upper Jurassic Submarine Fans in the South Viking Graben of the U.K. North Sea

1994 ◽  
pp. 307-308
Author(s):  
M.L. REEDER ◽  
C. MURRAY
Keyword(s):  
Sequence Stratigraphy ◽  
North Sea ◽  
Upper Jurassic ◽  
The South ◽  
Submarine Fans ◽  
Relationship Of ◽  
The Relationship

Tectono-magmatic reactivation of Téfidet Cretaceous trough during Cenozoic (Aïr, Niger)

2016 ◽  
Vol 187 (2) ◽  
pp. 73-82 ◽  
Author(s):  
Yacouba Ahmed ◽  
Moussa Konaté ◽  
Moussa Harouna
Keyword(s):  
Volcanic Activity ◽  
Upper Jurassic ◽  
South Atlantic ◽  
The South ◽  
Lake Chad ◽  
Pan African ◽  
The Relationship ◽  
Extension Period

AbstractThe Téfidet trough (eastern Niger) belongs to the Ténéré megasystem set of Cretaceous rifts N130°E to N170°E oriented, corresponding to the direction of the Lake Chad-Hoggar tectonic axis.The study of the relationship between the structure of the trough and alkaline fissural volcanism that developed there from the Oligocene to Plio-Quaternary shows the uniqueness of the Téfidet trough compared to the neighboring contemporary volcanic areas of Hoggar, Cameroon, and southern Aïr.The tectono-magmatic reactivation of the Cretaceous Téfidet trough developed in two steps: – a period contemporaneous with the Tuareg shield bulging (Aïr, Hoggar, Iforas);– a subsequent extension period generally N060°E, which has persisted since the opening of the South Atlantic (upper Jurassic to Plio-Quaternary).The fissural volcanism, due to the reactivation of Pan African and Cretaceous faults evolved concomitantly with the N060°E extension (syn-magmatic micro-fractures with basaltic filling), in several steps, from Oligocene to Plio-Quaternary.This study highlights the existence of periods of quietness and recovery of volcanic activity, for which two assumptions can be made: – no enough absolute datings,– apolyphased extension of the rift.The latter hypothesis seems to be supported by three periods of volcanic quietness, 28–24 m.y., 20–14 m.y. and 8–5 m.y., observed in the northern and the southern Aïr, Gréboun and Todgha, respectively.

Unraveling the South African Breast Cancer Story: The Relationship of Patients, Delay to Diagnosis, and Tumor Biology With Stage at Presentation in an Urban Setting

2019 ◽  
Vol 235 ◽  
pp. 181-189
Author(s):  
Sarah Rayne ◽  
Kathryn Schnippel ◽  
Surbhi Grover ◽  
Kirstin Fearnhead ◽  
Deirdre Kruger ◽  
...  
Keyword(s):  
Breast Cancer ◽  
South African ◽  
Tumor Biology ◽  
Urban Setting ◽  
The South ◽  
Relationship Of ◽  
The Relationship

Sedimentology and sequence stratigraphy of the Middle–Upper Jurassic Krossfjord and Fensfjord formations, Troll Field, northern North Sea

2013 ◽  
Vol 19 (3) ◽  
pp. 237-258 ◽  
Author(s):  
Nicholas E. Holgate ◽  
Christopher A.-L. Jackson ◽  
Gary J. Hampson ◽  
Tom Dreyer
Keyword(s):  
Sequence Stratigraphy ◽  
North Sea ◽  
Upper Jurassic ◽  
Northern North Sea

scholarly journals XXVI.—On the Fossil Flora of the South Wales Coal Field, and the Relationship of its Strata to the Somerset and Bristol Coal Field

1895 ◽  
Vol 37 (3) ◽  
pp. 565-614 ◽  
Author(s):  
Robert Kidston
Keyword(s):  
Relative Position ◽  
The Other ◽  
Fossil Flora ◽  
Coal Field ◽  
The South ◽  
White Ash ◽  
South Wales ◽  
Relationship Of ◽  
Coal Measures ◽  
The Relationship

The Coal Measures of the South Wales Coal Field fall into three well-marked divisions:—I. The Upper Pennant or Upper Penllergare Series.II. The Lower Pennant Series.III. The White Ash Series.In 1885 I paid a visit to this Coal Field, with the object of studying its Fossil Flora, hoping by this means to ascertain the relative position of the Welsh Coal Measures to those of the other Coal Fields of Britain.

The South Brae Field, Block 16/7a, UK North Sea

1991 ◽  
Vol 14 (1) ◽  
pp. 55-62 ◽  
Author(s):  
Martin J. Roberts
Keyword(s):  
North Sea ◽  
Oil Production ◽  
Upper Jurassic ◽  
The Other ◽  
Field Margins ◽  
The South ◽  
Western Margin ◽  
Recoverable Reserves ◽  
Clay Formation ◽  
Devonian Age

AbstractSouth Brae Oilfield lies at the western margin of the South Viking Graben, 161 miles northeast of Aberdeen. Oil production began in July 1983 from a single platform located in 368 ft of water. The field originally contained 312 MMBBL of recoverable reserves, and in May 1990, cumulative exports of oil and NGL reached 219 MMBBL. The reservoir lies at depths in excess of 11800 ft TVSS, has a maximum gross hydrocarbon column of 1670 ft, and covers an area of approximately 6000 acres.The reservoir is the Upper Jurassic Brae Formation which is downfaulted against tight sealing rocks of probable Devonian age at the western margin of the field. The other field margins are constrained by a combination of structural dip and stratigraphic pinchout.The reservoir is capped by the Kimmeridge Clay Formation, which is also the source of the oil.

Diagenetic controls on reservoir quality in Middle to Upper Jurassic sandstones in the South Viking Graben, North Sea

AAPG Bulletin ◽  
2011 ◽  
Vol 95 (11) ◽  
pp. 1937-1958 ◽  
Author(s):  
Tom Erik Maast ◽  
Jens Jahren ◽  
Knut Bjørlykke
Keyword(s):  
North Sea ◽  
Upper Jurassic ◽  
Reservoir Quality ◽  
The South
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