Citation:

0091-7613(1996)024%3C1013:COTEOT%3E2.3.CO;2

Name: Apatite fission track analytical data for samples from ODP Leg 152
Published: 1996
License: https://creativecommons.org/licenses/by/3.0/

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Abstract:

We test a new approach to understanding the tectonic evolution of passive margins by using fission-track analysis on detrital apatites from sediments deposited offshore East Greenland. These apatites have not undergone postdepositional track annealing and therefore reflect provenance. The apatites preserve a component of the source rocks' thermal history that otherwise may not be retained within the present-day outcrop. Fission-track derived denudational histories from samples at Ocean Drilling Program drill sites offshore East Greenland at lat 63°N are compared with data from the onshore Singertat Complex. Previous apatite fission-track studies and geomorphic mapping of the East Greenland coast have shown that locally up to 6 km of denudation may have occurred, implying significant tectonic or magmatic activity starting as much as 30 m.y. after breakup at 56 Ma. In contrast, apatite fission-track data presented here record <2 km of Cenozoic denudation in southeast Greenland, probably driven by magmatic underplating at the time of breakup. Large-magnitude, postrift denudation of East Greenland is restricted to the area around Kangerdlugssuaq (68°N). The timing (<40-50 Ma) and magnitude are in accord with revised plume track models suggesting that the Iceland plume crossed the margin here during the late Eocene.

Other version:

Apatite fission track, Apatite analytical data for samples from east Greenland

Project(s):

Ocean Drilling Program (ODP)

Coverage:

Median Latitude: 63.342200 * Median Longitude: -39.381800 * South-bound Latitude: 63.092900 * West-bound Longitude: -39.781800 * North-bound Latitude: 63.471400 * East-bound Longitude: -38.638900

Date/Time Start: 1993-09-30T21:59:00 * Date/Time End: 1993-11-12T16:50:00

Minimum Elevation: -1868.0 m * Maximum Elevation: -533.0 m

Event(s):

152-914B * Latitude: 63.462300 * Longitude: -39.724700 * Date/Time Start: 1993-09-30T21:59:00 * Date/Time End: 1993-10-03T14:45:00 * Elevation: -533.0 m * Penetration: 245 m * Recovery: 17.78 m * Location: Greenland Sea * Campaign: * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 17 cores; 151.2 m cored; 0 m drilled; 11.8 % recovery

152-915A * Latitude: 63.471400 * Longitude: -39.781800 * Date/Time Start: 1993-10-05T02:15:00 * Date/Time End: 1993-10-07T14:15:00 * Elevation: -533.0 m * Penetration: 209.4 m * Recovery: 32.84 m * Location: Greenland Sea * Campaign: * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 26 cores; 209.4 m cored; 0 m drilled; 15.7 % recovery

152-918D * Latitude: 63.092900 * Longitude: -38.638900 * Date/Time Start: 1993-10-28T21:30:00 * Date/Time End: 1993-11-12T16:50:00 * Elevation: -1868.0 m * Penetration: 1310.1 m * Recovery: 254.58 m * Location: Greenland Sea * Campaign: * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 113 cores; 1012.8 m cored; 0 m drilled; 25.1 % recovery

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Event label	Event
2	Sample code/label	Sample label		Clift, Peter D	DSDP/ODP/IODP sample designation
3	Age, dated material	Dated material		Clift, Peter D		estimated stratigraphic age, Ma
4	Number of tests	Tests	#	Clift, Peter D		number of crystals
5	Fission-tracks, density, counted in stan	p d	10⁶ #/cm²	Clift, Peter D
6	Fission-tracks	N d	10⁶ #/cm²	Clift, Peter D
7	Fission-tracks, spontaneous, density	p s	10⁶ #/cm²	Clift, Peter D
8	Fission-tracks, spontaneous	N s	10⁶ #/cm²	Clift, Peter D
9	Fission-tracks, induced, density	p i	10⁶ #/cm²	Clift, Peter D
10	Fission-tracks, induced	N i	10⁶ #/cm²	Clift, Peter D
11	Age, dated	Age dated	ka	Clift, Peter D
12	Age, dated standard deviation	Age dated std dev	±	Clift, Peter D
13	Age, maximum/old	Age max	ka	Clift, Peter D		old age component
14	Age, standard deviation	Age std dev	±	Clift, Peter D		of old age component
15	Fission-track length, mean	MTL	µm	Clift, Peter D
16	Fission-track length, mean, standard deviation	MTL std dev	±	Clift, Peter D
17	Standard deviation	Std dev	±	Clift, Peter D
18	Number of observations	NOBS	#	Clift, Peter D		number of tracks counted

License:

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

Size:

134 data points

Data

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

1 Event	2 Sample label	3 Dated material	4 Tests [#]	5 p d [10⁶ #/cm²]	6 N d [10⁶ #/cm²]	7 p s [10⁶ #/cm²]	8 N s [10⁶ #/cm²]	9 p i [10⁶ #/cm²]	10 N i [10⁶ #/cm²]	11 Age dated [ka]	12 Age dated std dev [±]	13 Age max [ka]	14 Age std dev [±]	15 MTL [µm]	16 MTL std dev [±]	17 Std dev [±]	18 NOBS [#]
152-914B	152-914B-12R to 15R	30-31	50	1.298	8995	1.097	2161	1.300	2561	182000	14000	229000	10000	13.10	0.15	1.46	100
152-914B	152-914B-17R	32-33	41	1.298	8995	0.685	1178	0.801	1377	174000	16000	222000	11000	12.51	0.23	2.12	84
152-915A	152-915A-18R to 22R	40-42	9	1.298	8995	0.523	185	0.772	273	150000	28000			13.44	0.46	1.67	14
152-918D	152-918D-55R to 58R	22-23	30	1.298	8995	1.320	973	1.943	1433	179000	19000	227000	17000	12.78	0.18	1.57	80
152-918D	152-918D-63R to 66R	24-27	36	1.298	8995	1.248	2005	1.208	1941	231000	16000	248000	13000	12.70	0.17	1.67	100
152-918D	152-918D-68R to 72R	24-28	19	1.298	8995	1.231	800	1.443	938	187000	20000	231000	13000	12.97	0.22	1.90	75
152-918D	152-918D-74R to 80R	27-30	43	1.298	8995	0.624	1195	0.750	1435	184000	12000	199000	10000	12.82	0.15	1.51	100
152-918D	152-918D-83R to 86R	28-31	18	1.298	8995	0.903	855	0.993	940	188000	20000	221000	13000	12.66	0.20	1.71	76