Not logged in
PANGAEA.
Data Publisher for Earth & Environmental Science

Underwood, Michael B; Torres, Marta (2006): (Table T1) Composition of clay minerals from ODP Leg 204 sediments [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.774624

Always quote citation above when using data! You can download the citation in several formats below.

RIS CitationBibTeX CitationShow MapGoogle Earth

Abstract:
This report describes the results of semiquantitative analysis of clay mineral composition by X-ray diffraction. The samples consist of hemipelagic mud and mudstone cored from Hydrate Ridge during Leg 204 of the Ocean Drilling Program. We analyzed oriented aggregates of the clay-sized fractions (<2 µm) to estimate relative percentages of smectite, illite, and chlorite (+ kaolinite). For the most part, stratigraphic variations in clay mineral composition are modest and there are no significant differences among the seven sites that were included in the study. On average, early Pleistocene to Holocene trench slope and slope basin deposits contain 29% smectite, 31% illite, and 40% chlorite (+ kaolinite). Late Pliocene to early Pleistocene strata from the underlying accretionary prism contain moderately larger proportions of smectite with average values of 38% smectite, 27% illite, and 35% chlorite (+ kaolinite). There is no evidence of clay mineral diagenesis at the depths sampled. The expandability of smectite is, on average, equal to 64%, and there are no systematic variations in expandability as a function of burial depth or depositional age. The absence of clay mineral diagenesis is consistent with the relatively shallow sample depths and corresponding maximum temperatures of only 24°-33°C.
Related to:
Underwood, Michael B; Torres, Marta (2006): Data report: Composition of clay minerals from hemipelagic sediments at Hydrate Ridge, Cascadia subduction zone. 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, 1-15, https://doi.org/10.2973/odp.proc.sr.204.127.2006
Project(s):
Ocean Drilling Program (ODP)
Coverage:
Median Latitude: 44.578231 * Median Longitude: -125.136859 * South-bound Latitude: 44.568610 * West-bound Longitude: -125.152500 * North-bound Latitude: 44.586300 * East-bound Longitude: -125.073960
Date/Time Start: 2002-07-13T12:45:00 * Date/Time End: 2002-08-27T21:30:00
Minimum DEPTH, sediment/rock: 48.95 m * Maximum DEPTH, sediment/rock: 521.05 m
Event(s):
204-1244C  * Latitude: 44.586300 * Longitude: -125.119830 * Date/Time Start: 2002-07-13T12:45:00 * Date/Time End: 2002-07-16T05:30:00 * Elevation: -895.1 m * Penetration: 333.5 m * Recovery: 315.5 m * Location: North Pacific Ocean * Campaign: Leg204 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 39 cores; 332 m cored; 1.5 m drilled; 95 % recovery
204-1245B  * Latitude: 44.585980 * Longitude: -125.149100 * Date/Time Start: 2002-08-06T07:15:00 * Date/Time End: 2002-08-09T15:45:00 * Elevation: -869.7 m * Penetration: 473.7 m * Recovery: 418.02 m * Location: North Pacific Ocean * Campaign: Leg204 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 53 cores; 471.7 m cored; 2 m drilled; 88.6 % recovery
204-1245E  * Latitude: 44.586160 * Longitude: -125.149350 * Date/Time Start: 2002-08-11T04:00:00 * Date/Time End: 2002-08-16T07:15:00 * Elevation: -869.5 m * Penetration: 540.3 m * Recovery: 18.48 m * Location: North Pacific Ocean * Campaign: Leg204 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 8 cores; 66.6 m cored; 473.7 m drilled; 27.7 % recovery
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1 Event labelEvent
2 Sample code/labelSample labelUnderwood, Michael BDSDP/ODP/IODP sample designation
3 DEPTH, sediment/rockDepth sedmGeocode – mbsf
4 Lithologic unit/sequenceUnitUnderwood, Michael B
5 Age, minimum/youngAge minkaUnderwood, Michael B
6 Age, maximum/oldAge maxkaUnderwood, Michael B
7 Smectite (peak area)Sme peak areaUnderwood, Michael BX-ray diffraction, clay fractiontotal counts smec (001)
8 Illite (peak area)Ill peak areaUnderwood, Michael BX-ray diffraction, clay fractiontotal counts illite (001)
9 Chlorite (peak area)Chl peak areaUnderwood, Michael BX-ray diffraction, clay fractiontotal counts chl (002)
10 SmectiteSme%Underwood, Michael BX-ray diffraction, clay fractionBiscaye weighting factor 1x
11 IlliteIll%Underwood, Michael BX-ray diffraction, clay fractionBiscaye weighting factor 4x
12 Chlorite+KaoliniteChl+Kln%Underwood, Michael BX-ray diffraction, clay fractionBiscaye weighting factor chlorite 2x
13 Mixed layer clay mineralsMix layerUnderwood, Michael BX-ray diffraction, clay fractionS(001) saddle
14 Mixed layer clay mineralsMix layerUnderwood, Michael BX-ray diffraction, clay fractionS(001) peak
15 RatioRatioUnderwood, Michael BCalculatedsaddle/peak
16 FactorFactorUnderwood, Michael BCalculatedpercent expandability of smectite within illite/smectite mixed-layer clay
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
746 data points

Data

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

1 
Event		2 
Sample label
(DSDP/ODP/IODP sample designation)		3 
Depth sed [m]
(mbsf)		4 
Unit		5 
Age min [ka]		6 
Age max [ka]		7 
Sme peak area
(total counts smec (001), X-ra...)		8 
Ill peak area
(total counts illite (001), X-...)		9 
Chl peak area
(total counts chl (002), X-ray...)		10 
Sme [%]
(Biscaye weighting factor 1x, ...)		11 
Ill [%]
(Biscaye weighting factor 4x, ...)		12 
Chl+Kln [%]
(Biscaye weighting factor chlo...)		13 
Mix layer
(S(001) saddle, X-ray diffract...)		14 
Mix layer
(S(001) peak, X-ray diffractio...)		15 
Ratio
(saddle/peak, Calculated)		16 
Factor
(percent expandability of smec...)
204-1244C 204-1244C-6H-5,13550.71I<270210446283186902530453474880.7163
204-1244C204-1244C-11H-5,13597.58II4601000424609089250303328393726370.5868
204-1244C204-1244C-19X-5,85149.85II4601000498758805245923726374567910.5869
204-1244C204-1244C-25X-3,135200.75II46010004032011469264272933383865940.6566
204-1244C204-1244C-30X-3,130249.00III15901670322745450150473826363755670.6665
204-1244C204-1244C-35X-3,130297.33III17002780414847304191663827354326670.6566
204-1244C204-1244C-37X-1,130313.50III17002780341416442163523728353205330.6068
204-1244C204-1244C-38X-3,130326.20III>2780307814537171663722413355340.6367
204-1244C204-1244C-39X-1,130332.80III>278021260322286174125343004130.7362
204-1245B 204-1245B-6H-2,14050.40II<270295979029274032530453925710.6964
204-1245B204-1245B-11H-5,140101.87III4601000361558186208423330384066330.6466
204-1245B204-1245B-18X-2,113151.73III100012003622611712244712735374606470.7163
204-1245B204-1245B-23X-5,125201.95III10001200295636448190423228413105000.6267
204-1245B204-1245B-28X-2,125245.68IV100012005952211029230564029314518170.5570
204-1245B204-1245B-35X-2,125303.55IV12001590287998833238922632433555150.6964
204-1245B204-1245B-40X-2,125351.65IV12001590193695846157932631423354410.7660
204-1245B204-1245B-45X-2,125399.85IV12001590294025431145723727363565080.7063
204-1245B204-1245B-51X-2,125447.95V12001590394086561158924027333835990.6466
204-1245B204-1245B-52X-2,125457.45V12001590534958341192704327314697600.6267
204-1245B204-1245B-53X-2,125466.51V12001590424998080205403728353445830.5968
204-1245E 204-1245E-4R-1,130502.20V12001590200934133102953529362893950.7362
204-1245E204-1245E-5R-1,122511.72V12001590195854458111493330373124130.7660
204-1245E204-1245E-6R-1,85521.05V>1590190065760131752834393074010.7760
204-1246B 204-1246B-6H-5,14050.00II<270265595733169733227413124930.6366
204-1246B204-1246B-12H-2,140102.60II270460188204622154812827453124260.7362
204-1246B204-1246B-15H-2,140125.15II>460140325456168482031482983650.8257
204-1246B204-1246B-15H-4,140128.15II>460189265323159082630442974000.7461
204-1246B204-1246B-16H-2,140132.70II>460198869136217972037443494540.7760
204-1247B 204-1247B-20X-3,130148.50III10001200324076423203043326413986060.6665
204-1247B204-1247B-25X-3,130196.33III>1590377497314210823527394216570.6466
204-1247B204-1247B-26X-3,130206.20III>1590317467017188403329393885820.6765
204-1247B204-1247B-27X-3,130215.50III>1590126366719123042042382893430.8455
204-1248C 204-1248C-6H-3,12951.05III4601590302807918203922931403865710.6864
204-1248C204-1248C-11H-4,122100.36III460159099754386114752035452422880.8455
204-1248C204-1248C-16H-3,135140.85III>1590243067360195252632423394960.6864
204-1248C204-1248C-17X-1,130143.30III>1590424418980209233530354206710.6367
204-1248C204-1248C-17X-3,135146.30III>1590313896228160513628363725710.6566
204-1250C 204-1250C-6H-5,11848.95III<270227296292156172932393504630.7660
204-1250C204-1250C-13H-2,130103.19III>1590191726051150602633413234380.7461
204-1250C204-1250C-17H-3,130136.30III>1590220536295181752630432764190.6665
204-1250C204-1250C-19X-2,130141.30III>1590294486701198813128413445110.6765
204-1250C204-1250C-19X-5,130145.75III>1590217626466180002631433394480.7660
204-1250F 204-1250F-11X-2,98155.68III>1590281957403190542931403485090.6864
204-1250F204-1250F-12X-3,125167.05III>1590251085751171073028423645040.7262
204-1250F204-1250F-13X-3,125176.65III>1590317895466154593826373805750.6665
204-1251B 204-1251B-6H-5,13153.61I902706488275643122542332222540.8752
204-1251B204-1251B-11H-5,70100.61I90270274218463215102632412904330.6765
204-1251B204-1251B-17H-5,80150.90II270460206317740191042334432804020.7064
204-1251B204-1251B-26X-2,130207.00II4601000233556905190802631433304520.7362
204-1251B204-1251B-30X-4,110248.00II4601000181885614159752531443174250.7561
204-1251B204-1251B-36X-5,80299.40II15901670415478092208363628364126510.6366
204-1251B204-1251B-49X-3,130402.20III17002000270243802103904324333204710.6864
204-1251B204-1251B-51X-3,130420.50III17002000392926029188653924374016310.6466
204-1251B204-1251B-52X-3,130430.10III17002000338535976139903928333675690.6466
204-1251B204-1251B-53X-3,130439.78III>2000363427948198103430373485700.6167