Citation:

PANGAEA.938031

Name: Fission-track age determination of the Southern Malawi Rift from rock sample IE0500003 (LM 1 AFT Age)
Published: 2021-11-09
License: https://creativecommons.org/licenses/by/4.0/
Keywords: Apatite fission track (AFT); low-temperature thermochronology; Malawi Rift; Rift initiation; Shire Rift; Strain accommodation

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

Published: 2021-11-09 • DOI registered: 2022-05-09

RIS Citation BibTeX Citation Text Citation ShareShow Map Google Earth

Keyword(s):

Apatite fission track (AFT); low-temperature thermochronology; Malawi Rift; Rift initiation; Shire Rift; Strain accommodation

Related to:

Ojo, Oyewande; Thomson, Stuart N; Laó-Dávila, Daniel A (2024): Neogene–Quaternary initiation of the Southern Malawi Rift and linkage to the reactivated Carboniferous–Jurassic Shire Rift. Tectonophysics, 877, 230270, https://doi.org/10.1016/j.tecto.2024.230270

Coverage:

Latitude: -15.029694 * Longitude: 35.126611

Event(s):

IE0500003 * Latitude: -15.029694 * Longitude: 35.126611 * Location: Malawi * Method/Device: Rock sample (ROCK)

Comment:

Sample Number: LM 1

Position (#): 18

Area of Graticule Square: 6.400E-07

No. of Crystals: 20

Zeta Factor ± Error: 305.8 ± 8.4

Rho d (% Relative Error): 1.608E+06

N d: 5145

Mineral: Apatite

Glass (U ppm): 15

Irradiation: UA-A39

Analyst: Oyewande Ojo

Locality: Malawi

Rock Type: Gneiss

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Fission-tracks, spontaneous	N s	#	Ojo, Oyewande	Fission-track
2	Fission-tracks, induced	N i	#	Ojo, Oyewande	Fission-track
3	Number of squares	N square	#	Ojo, Oyewande	Fission-track	Number of squares of the microscope grid in which tracks were counted
4	Diameter	Ø	µm	Ojo, Oyewande	Fission-track	Dpar - mean etch pit diameter parallel to the c-axis for each grain
5	Diameter	Ø	µm	Ojo, Oyewande	Fission-track	Dpar - mean etch pit diameter perpendicular to the c-axis for each grain
6	Fission-tracks, spontaneous, density	p s	10⁶ #/cm²	Ojo, Oyewande	Fission-track
7	Fission-tracks, induced, density	p i	10⁶ #/cm²	Ojo, Oyewande	Fission-track
8	Ratio	Ratio		Ojo, Oyewande	Calculated	p s/p i
9	Uranium	U	mg/kg	Ojo, Oyewande	Fission-track	Derived from the ratio between N s/N i
10	Age, mineral	Age mineral	Ma	Ojo, Oyewande	Age, fission-track	Single grain age
11	Age, standard error	Age std e	±	Ojo, Oyewande	Age, fission-track	1 σ

License:

Creative Commons Attribution 4.0 International (CC-BY-4.0)

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

220 data points

Data

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

1 N s [#] (Fission-track)	2 N i [#] (Fission-track)	3 N square [#] (Number of squares of the micr...)	4 Ø [µm] (Dpar - mean etch pit diameter...)	5 Ø [µm] (Dpar - mean etch pit diameter...)	6 p s [10⁶ #/cm²] (Fission-track)	7 p i [10⁶ #/cm²] (Fission-track)	8 Ratio (p s/p i, Calculated)	9 U [mg/kg] (Derived from the ratio betwee...)	10 Age mineral [Ma] (Single grain age, Age, fissio...)	11 Age std e [±] (1 σ, Age, fission-track)
128	351	100	1.77	0.50	2.00E6	5.48E6	0.3647	51.2	89.04	9.60
74	230	100	1.48	0.50	1.16E6	3.59E6	0.3217	33.5	78.62	10.78
140	382	90	1.96	0.50	2.43E6	6.63E6	0.3665	61.9	89.48	9.26
243	894	100	1.62	0.50	3.80E6	1.40E7	0.2718	130.3	66.48	5.23
155	492	100	2.13	0.50	2.42E6	7.69E6	0.3150	71.7	77.00	7.48
194	496	60	2.61	0.50	5.05E6	1.29E7	0.3911	120.5	95.45	8.60
39	142	49	1.93	0.50	1.24E6	4.53E6	0.2746	42.2	67.17	12.32
149	383	100	1.79	0.50	2.33E6	5.98E6	0.3890	55.8	94.95	9.62
71	188	100	2.01	0.50	1.11E6	2.94E6	0.3777	27.4	92.19	13.15
90	257	100	1.85	0.50	1.41E6	4.02E6	0.3502	37.5	85.53	10.80
131	410	81	2.00	0.50	2.53E6	7.91E6	0.3195	73.8	78.08	8.20
142	307	100	2.22	0.50	2.22E6	4.80E6	0.4625	44.7	112.73	11.96
151	405	81	1.91	0.50	2.91E6	7.81E6	0.3728	72.9	91.02	9.12
115	295	100	1.66	0.31	1.80E6	4.61E6	0.3898	43.0	95.14	10.86
25	60	40	1.65	0.50	9.77E5	2.34E6	0.4167	21.9	101.64	24.40
58	123	64	1.98	0.50	1.42E6	3.00E6	0.4715	28.0	114.91	18.64
127	323	63	1.72	0.50	3.15E6	8.01E6	0.3932	74.7	95.95	10.48
35	135	56	1.79	0.50	9.77E5	3.77E6	0.2593	35.1	63.43	12.19
282	692	100	1.90	0.50	4.41E6	1.08E7	0.4075	100.9	99.42	7.66
97	317	81	1.89	0.50	1.87E6	6.12E6	0.3060	57.0	74.80	8.98