Consolidation patterns during initiation and evolution of a plate-boundary decollement zone: northern Barbados accretionary prism

J. Casey Moore; Adam Klaus; Nathan L. Bangs; Barbara Bekins; Christian J. Bücker; Warner Brückmann; Stephanie N. Erickson; Olav Hansen; Thomas Horton; Peter Ireland; Candace Olson Major; Gregory F. Moore; Sheila Peacock; Saneatsu Saito; Elizabeth J. Screaton; John W. Shimeld; Philip Henry Stauffer; Tuncay Taymaz; Philip A. Teas; Tomochika Tokunaga

doi:10.1130/0091-7613(1998)026<0811:CPDIAE>2.3.CO;2

Consolidation patterns during initiation and evolution of a plate-boundary decollement zone: northern Barbados accretionary prism

J. Casey Moore^*, Adam Klaus, Nathan L. Bangs, Barbara Bekins, Christian J. Bücker, Warner Brückmann, Stephanie N. Erickson, Olav Hansen, Thomas Horton, Peter Ireland, Candace Olson Major, Gregory F. Moore, Sheila Peacock, Saneatsu Saito, Elizabeth J. Screaton, John W. Shimeld, Philip Henry Stauffer, Tuncay Taymaz, Philip A. Teas, Tomochika Tokunaga

^*Corresponding author for this work

Department of Geophysical Engineering

Research output: Contribution to journal › Article › peer-review

80 Citations (Scopus)

Abstract

Borehole logs from the northern Barbados accretionary prism show that the plate-boundary decollement initiates in a low-density radiolarian claystone. With continued thrusting, the decollement zone consolidates, but in a patchy manner. The logs calibrate a three-dimensional seismic reflection image of the decollement zone and indicate which portions are of low density and enriched in fluid, and which portions have consolidated. The seismic image demonstrates that an underconsolidated patch of the decollement zone connects to a fluid-rich conduit extending down the decollement surface. Fluid migration up this conduit probably supports the open pore structure in the underconsolidated patch.

Original language	English
Pages (from-to)	811-814
Number of pages	4
Journal	Geology
Volume	26
Issue number	9
DOIs	https://doi.org/10.1130/0091-7613(1998)026<0811:CPDIAE>2.3.CO;2
Publication status	Published - 1998

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10.1130/0091-7613(1998)026<0811:CPDIAE>2.3.CO;2

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Moore, J. C., Klaus, A., Bangs, N. L., Bekins, B., Bücker, C. J., Brückmann, W., Erickson, S. N., Hansen, O., Horton, T., Ireland, P., Major, C. O., Moore, G. F., Peacock, S., Saito, S., Screaton, E. J., Shimeld, J. W., Stauffer, P. H., Taymaz, T., Teas, P. A., & Tokunaga, T. (1998). Consolidation patterns during initiation and evolution of a plate-boundary decollement zone: northern Barbados accretionary prism. Geology, 26(9), 811-814. https://doi.org/10.1130/0091-7613(1998)026<0811:CPDIAE>2.3.CO;2

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title = "Consolidation patterns during initiation and evolution of a plate-boundary decollement zone: northern Barbados accretionary prism",

abstract = "Borehole logs from the northern Barbados accretionary prism show that the plate-boundary decollement initiates in a low-density radiolarian claystone. With continued thrusting, the decollement zone consolidates, but in a patchy manner. The logs calibrate a three-dimensional seismic reflection image of the decollement zone and indicate which portions are of low density and enriched in fluid, and which portions have consolidated. The seismic image demonstrates that an underconsolidated patch of the decollement zone connects to a fluid-rich conduit extending down the decollement surface. Fluid migration up this conduit probably supports the open pore structure in the underconsolidated patch.",

author = "Moore, {J. Casey} and Adam Klaus and Bangs, {Nathan L.} and Barbara Bekins and B{\"u}cker, {Christian J.} and Warner Br{\"u}ckmann and Erickson, {Stephanie N.} and Olav Hansen and Thomas Horton and Peter Ireland and Major, {Candace Olson} and Moore, {Gregory F.} and Sheila Peacock and Saneatsu Saito and Screaton, {Elizabeth J.} and Shimeld, {John W.} and Stauffer, {Philip Henry} and Tuncay Taymaz and Teas, {Philip A.} and Tomochika Tokunaga",

year = "1998",

doi = "10.1130/0091-7613(1998)026<0811:CPDIAE>2.3.CO;2",

language = "English",

volume = "26",

pages = "811--814",

journal = "Geology",

issn = "0091-7613",

publisher = "Geological Society of America",

number = "9",

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Moore, JC, Klaus, A, Bangs, NL, Bekins, B, Bücker, CJ, Brückmann, W, Erickson, SN, Hansen, O, Horton, T, Ireland, P, Major, CO, Moore, GF, Peacock, S, Saito, S, Screaton, EJ, Shimeld, JW, Stauffer, PH, Taymaz, T, Teas, PA & Tokunaga, T 1998, 'Consolidation patterns during initiation and evolution of a plate-boundary decollement zone: northern Barbados accretionary prism', Geology, vol. 26, no. 9, pp. 811-814. https://doi.org/10.1130/0091-7613(1998)026<0811:CPDIAE>2.3.CO;2

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T1 - Consolidation patterns during initiation and evolution of a plate-boundary decollement zone

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AU - Moore, J. Casey

AU - Klaus, Adam

AU - Bangs, Nathan L.

AU - Bekins, Barbara

AU - Bücker, Christian J.

AU - Brückmann, Warner

AU - Erickson, Stephanie N.

AU - Hansen, Olav

AU - Horton, Thomas

AU - Ireland, Peter

AU - Major, Candace Olson

AU - Moore, Gregory F.

AU - Peacock, Sheila

AU - Saito, Saneatsu

AU - Screaton, Elizabeth J.

AU - Shimeld, John W.

AU - Stauffer, Philip Henry

AU - Taymaz, Tuncay

AU - Teas, Philip A.

AU - Tokunaga, Tomochika

PY - 1998

Y1 - 1998

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AB - Borehole logs from the northern Barbados accretionary prism show that the plate-boundary decollement initiates in a low-density radiolarian claystone. With continued thrusting, the decollement zone consolidates, but in a patchy manner. The logs calibrate a three-dimensional seismic reflection image of the decollement zone and indicate which portions are of low density and enriched in fluid, and which portions have consolidated. The seismic image demonstrates that an underconsolidated patch of the decollement zone connects to a fluid-rich conduit extending down the decollement surface. Fluid migration up this conduit probably supports the open pore structure in the underconsolidated patch.

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Consolidation patterns during initiation and evolution of a plate-boundary decollement zone: northern Barbados accretionary prism

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