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Abegg, Friedrich; Bohrmann, Gerhard; Kuhs, Werner F (2006): (Table T1) Gas hydrate fabric and dipping angles of ODP Leg 204 sediments. PANGAEA, https://doi.org/10.1594/PANGAEA.774841, Supplement to: Abegg, F et al. (2006): Data report: Shapes and structures of gas hydrates imaged by computed tomographic analyses, ODP Leg 204, Hydrate Ridge. In: Tréhu, AM; Bohrmann, G; Torres, ME; Colwell, FS (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 204, 1-11, https://doi.org/10.2973/odp.proc.sr.204.122.2006

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Abstract:
The sediments of Hydrate Ridge/Cascadia margin contain extensive amounts of gas hydrate. A total of 57 sediment samples including gas hydrate were preserved in liquid nitrogen and have been imaged using computerized tomography to visualize hydrate distribution and shape. The analysis gives evidence that gas hydrate in vein and veinlet structures is the predominant shape in the deeper gas hydrate stability zone with dipping angles from 30° to 90°(vertical).
Related to:
Tréhu, Anne M; Bohrmann, Gerhard; Rack, Frank R; Torres, Marta E; et al. (2003): Proceedings of the Ocean Drilling Program, 204 Initial Reports. Proceedings of the Ocean Drilling Program, Ocean Drilling Program, 204, online, https://doi.org/10.2973/odp.proc.ir.204.2003
Project(s):
Coverage:
Median Latitude: 44.579419 * Median Longitude: -125.137238 * South-bound Latitude: 44.568600 * West-bound Longitude: -125.152517 * North-bound Latitude: 44.586233 * East-bound Longitude: -125.092817
Date/Time Start: 2002-07-12T00:00:00 * Date/Time End: 2002-09-01T00:00:00
Minimum DEPTH, sediment/rock: 0.00 m * Maximum DEPTH, sediment/rock: 129.26 m
Event(s):
204-1244  * Latitude: 44.586233 * Longitude: -125.119750 * Date/Time Start: 2002-07-12T00:00:00 * Date/Time End: 2002-08-22T00:00:00 * Elevation: -895.4 m * Penetration: 1051.2 m * Recovery: 545 m * Location: North Pacific Ocean * Campaign: Leg204 * Basis: Joides Resolution * Method/Device: Composite Core (COMPCORE) * Comment: 69 cores; 555.5 m cored; 495.7 m drilled; 98.1 % recovery
204-1245  * Latitude: 44.586133 * Longitude: -125.149050 * Date/Time Start: 2002-07-17T00:00:00 * Date/Time End: 2002-08-16T00:00:00 * Elevation: -870.7 m * Penetration: 1619.7 m * Recovery: 646.6 m * Location: North Pacific Ocean * Campaign: Leg204 * Basis: Joides Resolution * Method/Device: Composite Core (COMPCORE) * Comment: 93 cores; 761 m cored; 858.7 m drilled; 85 % recovery
204-1246  * Latitude: 44.586067 * Longitude: -125.135533 * Date/Time Start: 2002-07-18T00:00:00 * Date/Time End: 2002-08-11T00:00:00 * Elevation: -850.0 m * Penetration: 316.7 m * Recovery: 135.4 m * Location: North Pacific Ocean * Campaign: Leg204 * Basis: Joides Resolution * Method/Device: Composite Core (COMPCORE) * Comment: 16 cores; 136.7 m cored; 180 m drilled; 99 % recovery
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
Event labelEvent
Sample code/labelSample labelAbegg, FriedrichDSDP/ODP/IODP sample designation
DEPTH, sediment/rockDepth sedmGeocode – mbsf
Clast shapeClast shapeAbegg, FriedrichComputer tomography (CT) MARCONI Medical MX 8000
AngleAngledegAbegg, Friedrichvein angle from
AngleAngledegAbegg, Friedrichvein angle to
AngleAngledegAbegg, Friedrichvein angle from #2
AngleAngledegAbegg, Friedrichvein angle to #2
Clast shapeClast shapeAbegg, FriedrichInfrared shape
Size:
160 data points

Data

Download dataset as tab-delimited text — use the following character encoding:


Event

Sample label
(DSDP/ODP/IODP sample designation)

Depth sed [m]
(mbsf)

Clast shape
(Computer tomography (CT) MARC...)

Angle [deg]
(vein angle from)

Angle [deg]
(vein angle to)

Angle [deg]
(vein angle from #2)

Angle [deg]
(vein angle to #2)

Clast shape
(Infrared shape)
204-1244 204-1244C-8H-1,47-5262.97Vein, small sampleNodular; vein
204-1244204-1244E-12H-1,50-6074.10Vein, veinlets, bubble fabric6090Nodular
204-1244204-1244C-10H-2,70-10383.70Vein, veinlets, bubble fabric0303060Nodular; vein; steep dip; 2-cm nodules
204-1244204-1244E-13H-6,107-15090.97Vein, veinletsVein; thick; steep dip; nodular
204-1245 204-1245B-6H-5,60-7854.10Vein, small sampleNodular on deeply dipping plane
204-1245204-1245B-7H-1,44-5557.44Vein, veinlets, bubble fabricNodular; two separate pieces
204-1245204-1245C-10H-2,40-5570.32Irregular veinletsNodular
204-1245204-1245C-10H-5,99-10974.38UndefinedVein; low dip sharp top, gradational bottom
204-1245204-1245C-11H-2,52-7279.60Disseminated, bubble fabricNodular
204-1245204-1245C-14H-5,125-135113.75Gas hydrate not obviousVein parallel to bedding
204-1245204-1245C-15X-1,28-64116.28Gas hydrate not obviousNodular, core top hydrate sample missing
204-1245204-1245B-15X-2,0-10129.26UndefinedNodular, adjacent to void and steeply dipping fracture
204-1246 204-1246B-11H-5,93-12696.65Sample disturbed, veinletsVein
204-1246204-1246B-13H-1,0-30109.20Bubble fabricNodular
204-1247 204-1247B-12H-2,41-5193.01Vein6090Nodular
204-1248 204-1248C-1X-CC,0-142.24Veinlets, vein, disseminated, small sample
204-1248204-1248B-2H-2,0-257.37Veinlet, small sample
204-1248204-1248C-3X-3,0-321.83Layer, veinlets, small sample
204-1248204-1248C-6H-2,48-5349.71Small sample, no computed tomographyDisseminated
204-1248204-1248C-8H-6,68-8774.46Nodular, vein, bubble fabric3060Nodular
204-1248204-1248C-10H-1,100-11987.00Vein6090Nodular
204-1248204-1248C-11H-5,38-75100.89Vein6090Disseminated
204-1248204-1248C-12H-4,105-115110.51Vein, layer6090Nodular; disseminated
204-1249 204-1249C-1H-1,0-250.00Massive
204-1249204-1249C-1H-1,25-550.25Layer, bubble fabric
204-1249204-1249C-1H-1,125-1421.25Vein, veinlets, sample disturbed
204-1249204-1249C-1H-CC,0-101.50Layer, bubble fabric
204-1249204-1249C-1H-CC,0-101.50Layer-massive, bubble fabric
204-1249204-1249C-2H-1,108-1402.91Veinlets, disseminated, bubble fabric
204-1249204-1249C-3H-1,88-1065.89Disseminated, bubble fabric
204-1249204-1249C-3H-1,106-1315.89Disseminated, veinlets, bubble fabric
204-1249204-1249C-3H-CC7.15Veinlets, bubble fabric, sample disturbed
204-1249204-1249F-3H-1,8-1011.03Nodular-massive, small sampleNodular
204-1249204-1249F-5H-1,64-7016.14Veinlets, bubble fabric
204-1249204-1249B-2A-1,70-8030.60Layer, bubble fabric
204-1249204-1249B-2A-2,126-14131.96Disseminated, bubble fabric
204-1249204-1249B-3A-1,46-5534.86Veinlets, bubble fabric
204-1249204-1249C-7H-1,86-9635.86Veinlets, bubble fabric, sample disturbed
204-1249204-1249C-7H-2,87-9736.83Disseminated, bubble fabric
204-1249204-1249C-7H-3,22-3337.15Layer, veinlets, bubble fabric
204-1249204-1249B-4H-1,45-5339.35Gas hydrate not obvious
204-1249204-1249C-8H-3,0-1847.46Veinlets
204-1249204-1249B-6A-1,83-9547.90Veinlets, bubble fabric
204-1249204-1249C-8H-4,139-15250.33Gas hydrate not obvious
204-1249204-1249F-10H-5,86-10655.66Vein, bubble fabric6090Steeply dipping vein
204-1249204-1249C-11H-4,119-12969.32Gas hydrate not obvious
204-1249204-1249C-12H-1,110-12075.60Vein, bubble fabric6090
204-1250 204-1250D-1H-3,30-631.66Massive
204-1250204-1250D-1H-CC,0-142.57Layer, small sample
204-1250204-1250C-2H-1,0-564.50Layer, bubble fabric, sample disturbed
204-1250204-1250C-2H-CC,0-15.06Veinlets, nodular, bubble fabric
204-1250204-1250C-4H-3,100-11027.50Vein, veinlets, sample disturbedVein; nodular
204-1250204-1250D-10H-3,53-8478.01Vein, veinlets, nodular, bubble fabric3060Vein; dipping
204-1250204-1250C-11H-3,94-9586.35Vein, small sample
204-1250204-1250C-12H-1,50-5192.50? nodular, small sample
204-1252 204-1252A-11H-1,70-8098.60Veinlets, vein, bubble fabric030