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Takashimizu, Yasuhiro; Kawamura, R; Rodríguez-Tovar, Francisco Javier; Dorador, Javier; Ducassou, Emmanuelle; Hernandéz-Molina, Francisco Javier; Stow, Dorrik A V; Alvarez-Zarikian, Carlos A (2017): (Table 3) Radiocarbon ages from different Holes of IODP Exp339 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.870951, Supplement to: Takashimizu, Y et al. (2016): Reworked tsunami deposits by bottom currents: Circumstantial evidences from Late Pleistocene to Early Holocene in the Gulf of Cádiz. Marine Geology, 377, 95-109, https://doi.org/10.1016/j.margeo.2015.09.009

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Published: 2017-01-17DOI registered: 2017-02-20

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Abstract:
Younger Sand layers (YSLs) have been identified in drill cores of a Late Glacial to Early Holocene muddy contourite succession from the Gulf of Cádiz. In this study, we evaluate the grain size characteristics of the YSL, which display bi-gradational grading, with inverse grading (from silt to fine- or medium-grained sand) followed by normal grading (from fine- or medium-grained sand to silt). Radiocarbon dating shows that the YSL formed at three distinct times: 1) the Bølling-Allerød (sites U1387 and U1386); 2) the Younger Dryas (site U1390), and; 3) the beginning of the Boreal (site U1389). Ichnological analyses and radiocarbon dating of cores from drill site U1389C indicate that the YSLs consist of reworked materials deposited at a high sedimentation rate. The results of sedimentological analyses, ichnological treatment, spatial distributions, and radiocarbon dating of the YSLs suggest that the possibility of an origin of the YSLs is tsunami-related but later reworked by bottom current. However, the source areas of the sandy sediments remain unclear, although our results show them to be variable and area dependent. Some sandy deposits are transported by the Mediterranean Outflow Water (MOW) from the proximal sector of the Gulf of Cádiz Contourite Depositional System (CDS), which is close to the Strait of Gibraltar. However, in other cases it is more probable that local gravity flows, which are the result of instability on adjacent margins, provide the sandy material.
Coverage:
Median Latitude: 36.539419 * Median Longitude: -7.637659 * South-bound Latitude: 36.319100 * West-bound Longitude: -7.755515 * North-bound Latitude: 36.828142 * East-bound Longitude: -7.277953
Minimum DEPTH, sediment/rock: 2.375 m * Maximum DEPTH, sediment/rock: 7.760 m
Event(s):
339-U1386A  * Latitude: 36.828142 * Longitude: -7.755515 * Elevation: -560.4 m * Recovery: 347.04 m * Campaign: Exp339 (Mediterranean Outflow) * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 39 cores; 349.3 m cored; 99 % recovered; 349.3 m penetrated
339-U1387A  * Latitude: 36.805410 * Longitude: -7.719013 * Elevation: -558.7 m * Recovery: 347.84 m * Campaign: Exp339 (Mediterranean Outflow) * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 38 cores; 352.4 m cored; 99 % recovered; 352.4 m penetrated
339-U1389C  * Latitude: 36.425332 * Longitude: -7.277953 * Elevation: -643.0 m * Recovery: 328.48 m * Campaign: Exp339 (Mediterranean Outflow) * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 38 cores; 350 m cored; 94 % recovered; 350 m penetrated
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
Event labelEventTakashimizu, Yasuhiro
Latitude of eventLatitudeTakashimizu, Yasuhiro
Longitude of eventLongitudeTakashimizu, Yasuhiro
Laboratory code/labelLab labelTakashimizu, Yasuhiro
Sample code/labelSample labelTakashimizu, YasuhiroDSDP/ODP/IODP sample designation
DEPTH, sediment/rockDepth sedmTakashimizu, YasuhiroGeocode – Top in mbsf
AGEAgeka BPTakashimizu, YasuhiroAge, 14C AMSGeocode – Conventional radiocarbon age
Age, standard deviationAge std dev±Takashimizu, YasuhiroAge, 14C AMS
Reservoir effect/correctionRes effectaTakashimizu, YasuhiroAge, 14C AMSLocal reservoir correction
10 Age, dated materialDated materialTakashimizu, YasuhiroAge, 14C AMS
11 Median probability ageMed Prob ageka BPTakashimizu, YasuhiroAge, 14C AMSCalender year BP
12 Calendar ageCal ageka BPTakashimizu, YasuhiroAge, 14C AMSStart; 2 Sigma range (Calender year BP)
13 Calendar ageCal ageka BPTakashimizu, YasuhiroAge, 14C AMSEnd; 2 Sigma range (Calender year BP)
14 CalibrationCalibrationTakashimizu, YasuhiroAge, 14C AMSCalibration dataset
Size:
99 data points

Data

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


Event

Latitude

Longitude

Lab label

Sample label
(DSDP/ODP/IODP sample designation)

Depth sed [m]
(Top in mbsf)

Age [ka BP]
(Conventional radiocarbon age,...)

Age std dev [±]
(Age, 14C AMS)

Res effect [a]
(Local reservoir correction, A...)
10 
Dated material
(Age, 14C AMS)
11 
Med Prob age [ka BP]
(Calender year BP, Age, 14C AMS)
12 
Cal age [ka BP]
(Start; 2 Sigma range (Calende...)
13 
Cal age [ka BP]
(End; 2 Sigma range (Calender ...)
14 
Calibration
(Calibration dataset, Age, 14C...)
339-U1389C 36.4253-7.2780Beta-340,176339-U1389C-1H-4,23-254.7301142040400Planktonic foraminifers (bulk)128741272713018Marine13
339-U1389C36.4253-7.2780Beta-371,500339-U1389C-1H-4,27.5-304.7751295050400Planktonic foraminifers (bulk)148571447015126Marine13
339-U1389C36.4253-7.2780Beta-340,177339-U1389C-1H-4,50-52.55.0001190040400Planktonic foraminifers (bulk)133581325613464Marine13
339-U1389C36.4253-7.2780Beta-369,963339-U1389C-1H-4,72.5-755.2251455060400Planktonic foraminifers (bulk)172201700117454Marine13
339-U1389C36.4253-7.2780Beta-369,964339-U1389C-1H-4,77.5-805.2751411050400Planktonic foraminifers (bulk)165381631016796Marine13
339-U1389C36.4253-7.2780Beta-340,178339-U1389C-1H-4,80-825.300959040400Planktonic foraminifers (bulk)104691031710584Marine13
339-U1390B 36.3191-7.7180SacA33894339-U1390B-1H-4,146-1485.960922035400Planktonic foraminifers (bulk except deep-dwelling species)10040990210154Marine13
339-U1390B36.3191-7.7180SacA33896339-U1390B-1H-6,26-287.7601036045400Planktonic foraminifers (bulk except deep-dwelling species)113931121811677Marine13
339-U1390C 36.3191-7.7178SacA33886339-U1390C-2H-3,10-127.5001242540400Planktonic foraminifers (bulk except deep-dwelling species)139051377214043Marine13
339-U1387A 36.8054-7.7190Beta-399,611339-U1387A-1H-2,87.5-89.52.3751265040400Planktonic foraminifers (bulk)141431398314315Marine13
339-U1386A 36.8281-7.7555Beta-399,610339-U1386A-1H-2,142-1442.9201215040400Planktonic foraminifers (bulk)135961312813744Marine13