Heavy mineral sorting in downwards injected Palaeocene sandstone, Siri Canyon, Danish North Sea

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Heavy mineral sorting in downwards injected Palaeocene sandstone, Siri Canyon, Danish North Sea. / Kazerouni, Afsoon Moatari; Friis, Henrik; Svendsen, Johan Byskov; Weibel, Rikke .

In: Sedimentary Geology, Vol. 236, No. 3-4, 01.05.2011, p. 279-285.

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Kazerouni, AM, Friis, H, Svendsen, JB & Weibel, R 2011, 'Heavy mineral sorting in downwards injected Palaeocene sandstone, Siri Canyon, Danish North Sea', Sedimentary Geology, vol. 236, no. 3-4, pp. 279-285. https://doi.org/10.1016/j.sedgeo.2011.01.013

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Author

Kazerouni, Afsoon Moatari ; Friis, Henrik ; Svendsen, Johan Byskov ; Weibel, Rikke . / Heavy mineral sorting in downwards injected Palaeocene sandstone, Siri Canyon, Danish North Sea. In: Sedimentary Geology. 2011 ; Vol. 236, No. 3-4. pp. 279-285.

Bibtex

@article{66c93fc0467d42aeb960edb23a1e0c1e,
title = "Heavy mineral sorting in downwards injected Palaeocene sandstone, Siri Canyon, Danish North Sea",
abstract = "Post-depositional remobilization and injection of sand are often seen in deep-water clastic systems and has been recently recognised as a significant modifier of deep-water sandstone geometry. Large-scale injectite complexes have been interpreted from borehole data in the Palaeocene Siri Canyon near the Danish Central Graben of the North Sea hydrocarbon province. The emplacement of large-scale injectite complexes has been commonly attributed to seismic activity and consequent sand liquefaction. However, due to very small differences in textural and compositional properties, and the lack of depositional structures in deep-water sandstones, the distinction between {"}in situ{"} and injected or remobilised sandstones is often ambiguous. Large scale heavy mineral sorting (in 10 m thick units) is observed in several reservoir units in the Siri Canyon and has been interpreted to represent the depositional sorting. In this study we describe an example of effective shear-zone sorting of heavy minerals in a thin downward injected sandstone dyke which was encountered in one of the cores in the Cecilie Field, Siri Canyon. Differences in sorting pattern of heavy minerals are suggested as a tool for petrographic /geochemical distinction between {"}in situ{"} sandstones and their related injectites, especially where primary sedimentary structures are removed by fluidization or minor remobilization.",
author = "Kazerouni, {Afsoon Moatari} and Henrik Friis and Svendsen, {Johan Byskov} and Rikke Weibel",
year = "2011",
month = "5",
day = "1",
doi = "10.1016/j.sedgeo.2011.01.013",
language = "English",
volume = "236",
pages = "279--285",
journal = "Sedimentary Geology",
issn = "0037-0738",
publisher = "Elsevier BV",
number = "3-4",

}

RIS

TY - JOUR

T1 - Heavy mineral sorting in downwards injected Palaeocene sandstone, Siri Canyon, Danish North Sea

AU - Kazerouni, Afsoon Moatari

AU - Friis, Henrik

AU - Svendsen, Johan Byskov

AU - Weibel, Rikke

PY - 2011/5/1

Y1 - 2011/5/1

N2 - Post-depositional remobilization and injection of sand are often seen in deep-water clastic systems and has been recently recognised as a significant modifier of deep-water sandstone geometry. Large-scale injectite complexes have been interpreted from borehole data in the Palaeocene Siri Canyon near the Danish Central Graben of the North Sea hydrocarbon province. The emplacement of large-scale injectite complexes has been commonly attributed to seismic activity and consequent sand liquefaction. However, due to very small differences in textural and compositional properties, and the lack of depositional structures in deep-water sandstones, the distinction between "in situ" and injected or remobilised sandstones is often ambiguous. Large scale heavy mineral sorting (in 10 m thick units) is observed in several reservoir units in the Siri Canyon and has been interpreted to represent the depositional sorting. In this study we describe an example of effective shear-zone sorting of heavy minerals in a thin downward injected sandstone dyke which was encountered in one of the cores in the Cecilie Field, Siri Canyon. Differences in sorting pattern of heavy minerals are suggested as a tool for petrographic /geochemical distinction between "in situ" sandstones and their related injectites, especially where primary sedimentary structures are removed by fluidization or minor remobilization.

AB - Post-depositional remobilization and injection of sand are often seen in deep-water clastic systems and has been recently recognised as a significant modifier of deep-water sandstone geometry. Large-scale injectite complexes have been interpreted from borehole data in the Palaeocene Siri Canyon near the Danish Central Graben of the North Sea hydrocarbon province. The emplacement of large-scale injectite complexes has been commonly attributed to seismic activity and consequent sand liquefaction. However, due to very small differences in textural and compositional properties, and the lack of depositional structures in deep-water sandstones, the distinction between "in situ" and injected or remobilised sandstones is often ambiguous. Large scale heavy mineral sorting (in 10 m thick units) is observed in several reservoir units in the Siri Canyon and has been interpreted to represent the depositional sorting. In this study we describe an example of effective shear-zone sorting of heavy minerals in a thin downward injected sandstone dyke which was encountered in one of the cores in the Cecilie Field, Siri Canyon. Differences in sorting pattern of heavy minerals are suggested as a tool for petrographic /geochemical distinction between "in situ" sandstones and their related injectites, especially where primary sedimentary structures are removed by fluidization or minor remobilization.

U2 - 10.1016/j.sedgeo.2011.01.013

DO - 10.1016/j.sedgeo.2011.01.013

M3 - Journal article

VL - 236

SP - 279

EP - 285

JO - Sedimentary Geology

JF - Sedimentary Geology

SN - 0037-0738

IS - 3-4

ER -