Rekonstruktion eines unter-bis mittelordovizischen Karbonatschelfrandes: Cow Head Gruppe, West-Neufundland

Pohler, Susanne M. L.; James, Noël P.

doi:10.1007/bf02536836

Cited by 34 publications

(23 citation statements)

References 57 publications

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“…1 and Table 1). Among the most common, largest, and most persistent of 'clasts' are large blocks of fine-grained white limestone, middle Middle Cambrian to lower Middle Ordovician in age (Hiscott and James, 1985;Pohler and James, 1989). Paleozoic blocks are further observed in the Argentine pre-cordillera, wherẽ 2500 m of Cambrian-Ordovician limestones (bioherms) and dolomites are observed ( Fig.…”

Section: Blocks On the Fringes Of Active Orogensmentioning

confidence: 94%

Submarine slide blocks and associated soft-sediment deformation in deep-water basins: A review

Alves

2015

Marine and Petroleum Geology

151

109

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a b s t r a c tThree-dimensional (3D) seismic and outcrop data are used to review the significance of submarine slide blocks and associated soft-sediment deformation structures in deep-water basins. Submarine slide blocks are generated during major instability events in a variety of geological settings and their size exceeds that of boulders, which are <4.1 m. Slide blocks can be~500 m high by >4.5 km long on a number of continental margins, presenting internal folding, thrusting and rolling over basal brecciaconglomerate carpets. In addition, soft-sediment deformation structures such as foliated strata, intrafolial folds, tiling, bookshelf sliding and dilational jogs reflect important shearing within blocks and their basal glide planes. This work proposes that buried blocks and associated coarse-grained debrites are capable of forming prolific reservoir intervals for hydrocarbons and mineralization. Three-dimensional leakage factor models show the bulk of fluid flow to be focused in vertical and horizontal surfaces within, and immediately below displaced blocks. The generation of large slide blocks can also mark the sudden release of overburden pressure, and result in the loss of seal competence above existing hydrocarbon fields. Ultimately, this review clarifies the present-day understanding on the modes of formation of submarine slide blocks, confirming their economic importance in deep-water basins throughout the world.

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Section: Blocks On the Fringes Of Active Orogensmentioning

confidence: 94%

Submarine slide blocks and associated soft-sediment deformation in deep-water basins: A review

Alves

2015

Marine and Petroleum Geology

151

109

View full text Add to dashboard Cite

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“…Best documented were the Pulchrilamina-bearing reef mounds in Texas and Oklahoma (tooMey & haM, 1967;tooMey, 1970;tooMey & NitecKi, 1979;tooMey & BaBcocK, 1983;WeBBy, 1986WeBBy, , 2002. Pulchrilamina has also been reported from bedded sequences of Floian age (pratt & JaMes, 1989), and reef-derived clasts of lower Mid-Ordovician (Dapingian) age (pohler & JaMes, 1989) in Newfoundland.…”

Section: Mid-cambrian To Early Ordovician Gap In the Recordmentioning

confidence: 99%

Treatise Online, no. 33: Part E, Revised, Volume 4, Chapter 10: Origins and Early Evolution of the Paleozoic Stromatoporoidea

Webby¹

2012

TREON

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“…Archaeoscyphia, which often provided sites for the attachment of microbialites, is regarded as a constructor. The microbialites that enclose the sponges are considered as encrusters and binders; other workers have been suggested that the microbialites are necessary components for the development of siliceous sponge-microbial boundstone (e.g., Church, 1974;Pohler and James, 1989;Cañas and Carrera, 1993;Adachi et al, 2013).…”

Section: Interpretationsmentioning

confidence: 99%

Untangling intricate microbial–sponge frameworks: The contributions of sponges to Early Ordovician reefs

Hong

Choh

Lee

2015

Sedimentary Geology

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Rekonstruktion eines unter-bis mittelordovizischen Karbonatschelfrandes: Cow Head Gruppe, West-Neufundland

Cited by 34 publications

References 57 publications

Submarine slide blocks and associated soft-sediment deformation in deep-water basins: A review

Submarine slide blocks and associated soft-sediment deformation in deep-water basins: A review

Treatise Online, no. 33: Part E, Revised, Volume 4, Chapter 10: Origins and Early Evolution of the Paleozoic Stromatoporoidea

Untangling intricate microbial–sponge frameworks: The contributions of sponges to Early Ordovician reefs

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