Citation:

odp.proc.sr.101.150.1988

Name: Physical-property data of turbidites and periplatform ooze of ODP Leg 101 holes (Table 1)
Creator: Gregor P Eberli
Published: 1988
License: https://creativecommons.org/licenses/by/3.0/

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Abstract:

Along the slopes and in adjacent basinal areas of Bahamian platforms, periplatform ooze forms the host sediment for variable proportions of carbonate turbidites. In unlithified sections, these turbidites appear as unconsolidated layers intercalated with stiffer ooze. Within an individual turbidite, differences in grain size result in variations in consolidation and physical properties. With decreasing grain size, water content and porosity decrease, and two distinct surfaces develop at the lower and upper boundaries of the turbidite. These surfaces are potential instability horizons where mass-wasting can occur. Therefore, a relation between turbidites and slumping frequency is proposed. The higher proportion of turbidites in sediments deposited on low-angle, accretionary terrains, such as the toe of the northern slope of Little Bahama Bank, probably facilitates frequent, small-scale slumping and creeping, as seen in seismic profiles. In contrast, slumping is less frequent along the steeper (12°) bypass slope in Exuma Sound, where turbidites are rarely found.

Where the background sediment was initially a pelagic nannofossil ooze rather than a periplatform ooze, mineralogical composition results in lithification differences. In lithified sections having chalk as the background sediment, turbidites display a higher sonic velocity, indicating that they are the more competent beds. This lithification variation is the result of differential diagenesis between the platform-derived turbidites, enriched in metastable carbonates, and the calcitic nannofossil ooze of the background sediment. The different lithification owing to dissimilar mineralogical composition could also influence fluid migration in carbonate sequences. In a periplatform sequence, the more porous turbidite might be the fluid conduit, whereas in a pelagic sequence the chalky background sediment allows for fluid migration.

Project(s):

Ocean Drilling Program (ODP)

Coverage:

Median Latitude: 25.961800 * Median Longitude: -77.338440 * South-bound Latitude: 23.840700 * West-bound Longitude: -78.315800 * North-bound Latitude: 27.635000 * East-bound Longitude: -75.435500

Date/Time Start: 1985-02-10T14:15:00 * Date/Time End: 1985-03-09T15:40:00

Minimum DEPTH, sediment/rock: 0.70 m * Maximum DEPTH, sediment/rock: 461.10 m

Event(s):

101-627B * Latitude: 27.635000 * Longitude: -78.294200 * Date/Time Start: 1985-02-10T14:15:00 * Date/Time End: 1985-02-17T19:30:00 * Elevation: -1036.0 m * Penetration: 535.8 m * Recovery: 350.96 m * Location: South Atlantic Ocean * Campaign: * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 60 cores; 535.8 m cored; 0 m drilled; 65.5 % recovery

101-628A * Latitude: 27.530800 * Longitude: -78.315800 * Date/Time: 1985-02-17T23:55:00 * Elevation: -974.0 m * Penetration: 298.4 m * Recovery: 217.49 m * Location: South Atlantic Ocean * Campaign: * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 32 cores; 298.4 m cored; 0 m drilled; 72.9 % recovery

101-632A * Latitude: 23.840700 * Longitude: -75.435500 * Date/Time Start: 1985-02-25T10:50:00 * Date/Time End: 1985-02-26T12:50:00 * Elevation: -2007.0 m * Penetration: 141 m * Recovery: 83.45 m * Location: South Atlantic Ocean * Campaign: * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 16 cores; 141 m cored; 0 m drilled; 59.2 % recovery

Comment:

Data of Hole 101-634A after Austin, Schlager et al. (1986, doi:10.2973/odp.proc.ir.101.1986)

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Event label	Event
2	Sample code/label	Sample label		Eberli, Gregor P	DSDP/ODP/IODP sample designation
3	DEPTH, sediment/rock	Depth sed	m			Geocode
4	Calcium carbonate	CaCO3	%	Eberli, Gregor P
5	Density, wet bulk	WBD	g/cm³	Eberli, Gregor P
6	Density, grain	Density grain	g/cm³	Eberli, Gregor P
7	Porosity	Poros	% vol	Eberli, Gregor P
8	Water content, wet mass	Water wm	%	Eberli, Gregor P
9	Velocity, compressional wave	Vp	m/s	Eberli, Gregor P
10	Lithology/composition/facies	Lithology		Eberli, Gregor P

License:

Creative Commons Attribution 3.0 Unported (CC-BY-3.0)

Size:

421 data points

Data

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

1 Event	2 Sample label	3 Depth sed [m]	4 CaCO3 [%]	5 WBD [g/cm³]	6 Density grain [g/cm³]	7 Poros [% vol]	8 Water wm [%]	9 Vp [m/s]	10 Lithology
101-627B	101-627B-15H-2,114-116	132.94	79.16	1.81	2.59	56.16	45.26		Ooze
101-627B	101-627B-15H-2,129-131	133.09	82.75	1.83	2.74	53.71	41.73		Turbidites top
101-627B	101-627B-15H-2,136-138	133.16	82.27	1.94	2.70	48.87	34.08		Turbidites middle
101-627B	101-627B-15H-3,3-5	133.33	85.52	1.88	2.71	49.82	36.26		Turbidites bottom
101-627B	101-627B-16H-2,70-72	142.40		1.84	2.74	49.50	37.02		Ooze
101-627B	101-627B-16H-3,90-92	143.80	80.63	1.81	2.67	54.35	43.07		Ooze
101-627B	101-627B-16H-3,132-134	144.22	85.20	1.86	2.71	53.30	40.26		Turbidites top
101-627B	101-627B-16H-4,13-15	144.53	85.43	1.85	2.69	53.98	41.34		Turbidites middle
101-627B	101-627B-16H-4,65-67	145.05	82.73	1.85	2.70	53.14	40.37		Turbidites middle
101-627B	101-627B-16H-4,70-72	145.10		1.87	2.72	52.66	39.40		Turbidites middle
101-627B	101-627B-16H-4,94-96	145.34	85.79	1.71	2.84	65.83	62.31		Turbidites bottom
101-627B	101-627B-16H-6,70-72	148.05		1.82	2.89	56.37	45.15		Ooze
101-628A	101-628A-4H-4,75-77	28.10		1.78	2.72	60.81	51.86		Ooze
101-628A	101-628A-4H-6,5-7	30.45	83.83	1.69		58.29	34.88		Turbidites top
101-628A	101-628A-4H-6,14-16	30.54	84.68	1.70		64.92	56.87		Turbidites middle
101-628A	101-628A-4H-6,31-33	30.71	83.20	1.71		62.56	55.49		Turbidites bottom
101-628A	101-628A-4H-6,35-37	30.75	84.48	1.69		62.82	35.75		Ooze
101-628A	101-628A-4H-6,70-72	31.00	82.95	1.78	2.66	59.09	49.75		Ooze
101-628A	101-628A-12H-2,70-72	100.70		1.81	2.88	57.20	43.40		Ooze
101-628A	101-628A-12H-4,57-59	103.57	82.40	1.72		60.07	53.49		Turbidites bottom
101-628A	101-628A-12H-4,70-72	103.80	83.04	1.90	2.88	43.48	57.27		Ooze
101-632A	101-632A-2H-2,70-72	9.10		1.65	2.74	62.79	61.08		Ooze
101-632A	101-632A-2H-3,66-68	10.57	79.60	2.05	2.77	49.60	32.00		Turbidites top
101-632A	101-632A-2H-3,145-147	11.35	81.31	1.71	2.81	63.33	58.62		Turbidites bottom
101-632A	101-632A-2H-4,70-72	12.10		1.69	2.75	56.02	60.77		Ooze
101-632A	101-632A-2H-6,70-72	15.10		1.68	2.76	55.67	60.11		Ooze
101-632A	101-632A-3H-2,70-72	18.90		1.86	2.78	54.73	41.89		Turbidite
101-632A	101-632A-3H-2,109-111	19.29	79.51	1.84	2.77	52.01	39.54		Ooze
101-632A	101-632A-3H-2,133-135	19.53	83.23	1.93	2.81	51.05	36.29		Turbidites top
101-632A	101-632A-3H-3,5-7	19.75	83.09	1.92	2.87	53.61	38.96		Turbidites middle
101-632A	101-632A-3H-3,32-34	20.02	84.14	1.86	2.81	54.19	41.27		Turbidites bottom
101-632A	101-632A-3H-3,112-114	20.91	86.20	1.74	2.79	62.31	55.64		Turbidites top
101-632A	101-632A-3H-3,135-137	21.05	80.20	1.79	2.24	77.87	75.65		Turbidites bottom
101-632A	101-632A-3H-4,70-72	21.90		1.68	2.71	62.35	59.04		Ooze
101-632A	101-632A-4H-1,94-96	27.24	81.60	1.76	2.85	61.59	53.78		Turbidites top
101-632A	101-632A-4H-2,70-72	28.50		1.68	2.81	63.03	60.36		Ooze
101-632A	101-632A-4H-3,63-65	29.93	81.56	1.85	2.95	56.21	43.59		Turbidites bottom
101-632A	101-632A-4H-4,70-72	32.00		1.74	2.82	61.36	54.42		Ooze
101-632A	101-632A-4H-5,105-107	33.35	86.72	1.70	2.75	61.54	56.12		Debris flow
101-632A	101-632A-4H-5,115-117	33.45	83.98	1.74	2.76	58.64	50.53		Debris flow
101-632A	101-632A-4H-6,64-66	34.44	86.68	1.77	2.81	59.19	50.28		Turbidites top
101-632A	101-632A-4H-6,70-72	34.50		1.73	2.70	60.87	54.03		Turbidites middle
101-632A	101-632A-4H-6,94-96	34.74	82.93	1.66	2.78	65.48	64.51		Turbidites bottom
101-632A	101-632A-6H-2,70-72	47.60		1.73	2.74	60.83	54.01		Ooze
101-632A	101-632A-6H-6,70-72	53.60		1.74	2.72	63.07	56.93		Turbidite
101-634A	101-634A-4R-2,70-72	168.30	75.60	1.96	2.75	42.49	33.24	1877	Chalk
101-634A	101-634A-6R-1,40-42	182.50	82.51	1.84	2.74	53.39	40.89	1895	Chalk
101-634A	101-634A-11R-1,10-12	230.00		1.99	2.68	29.27	44.91	2159	Poorly lithified grainstone
101-634A	101-634A-11R-1,55-57	230.45		1.91	2.67	35.26	49.41	1661	Chalk
101-634A	101-634A-13R-1,54-56	249.14	82.33	2.43	2.66	11.40	24.50	4638	Cemented rudstone
101-634A	101-634A-14R-1,8-10	258.30						1559	Chalk
101-634A	101-634A-16R-CC,10-12	287.00		2.45		17.90		6350	Chert (silicified turbidite)
101-634A	101-634A-22R-1,10-12	354.70						2100	Chalk
101-634A	101-634A-22R-1,42-44	355.00		2.26	2.59	16.38	31.32	3395	Lithified grainstone
101-634A	101-634A-28R-1,57-59	422.37	82.14	2.30	2.70		24.40	4224	Cemented grainstone
101-634A	101-634A-28R-2,6-8	423.40						2260	Chalk
101-634A	101-634A-29R-1,25-27	441.35	84.01	1.99			42.90	4443	Lithified rudstone
101-634A	101-634A-30R-1,20-22	450.90						3055	Partly lithified packstone
101-634A	101-634A-31R-1,35-37	460.60						3699	Silicified grainstone
101-634A	101-634A-31R-1,40-42	461.10						3468	Packstone
101-635A	101-635A-1R-1,70-72	0.70		1.66	2.72	65.00	64.29		Ooze
101-635A	101-635A-1R-1,135-137	1.35	75.35	1.58	2.77	64.60	62.33		Turbidite
101-635A	101-635A-1R-2,58-60	2.08	83.37	1.77	2.80	60.50	51.84		Turbidites top
101-635A	101-635A-1R-2,70-72	2.20		1.79	2.77	59.87	50.23		Turbidites middle
101-635A	101-635A-1R-2,95-97	2.45	82.73	1.78	2.78	59.20	49.54		Turbidites bottom
101-635A	101-635A-2R-1,110-112	3.90		1.78	2.74	51.53	37.89		Turbidites top
101-635A	101-635A-2R-2,80-82	5.10		1.74	2.80	62.13	55.45		Turbidites bottom