Citation:

PANGAEA.997236 (dataset in review)

Name: Paleomagnetic data of lacustrine sediment composite sequence GL23-20 from Grand Lake, Labrador, Canada
License: https://creativecommons.org/licenses/by/4.0/
Keywords: Grand Lake; Labrador; lacustrine sediment core; magnetic properties

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Abstract:

We present magnetic data for a 20-m long sedimentary sequence. The cores were retrieved in Grand Lake, Labrador, Canada at 245m water depth. The fiel includes magnetic susceptibility (kLF), magnetic susceptibility of the anhysteretic remanent magnetization (kARM), inclination values, maximum angular deviation (MAD) values, median destructive field (MDF), NRM intensity values at 0, 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70 and 80 mT deagnetization steps, pseudo S-ratio, S-ratio, Hcr/Hc and Mrs/Ms. Magnetic susceptibility was measured on the half section of the cores, on a multi-sensor core logger at ISMER (Rimouski, Canada). S-ratio, Hcr/Hc and Mrs/Ms were determined on discrete samples, measured with an alternating field gradient magnetometer at ISMER. Continuous paleomagnetic data (NRM, inclination, MAD, MDF) were obtained from u-channels measurements with a 2G Enterprises 755SRM‐1.65 cryogenic magnetometer at ISMER.

Keyword(s):

Grand Lake; Labrador; lacustrine sediment core; magnetic properties

Supplement to:

Girard, Juliette; Kury, Milena; St-Onge, Guillaume; Francus, Pierre; Montero-Serrano, Jean-Carlos; Lajeunesse, Patrick (submitted): Impact of turbulence and salinity on the magnetic properties of a 20-m sedimentary sequence from Grand Lake (Labrador, Canada). Geochemistry, Geophysics, Geosystems

Funding:

Fonds de recherche du Québec, grant/award no. 334533

Fonds de Recherche du Québec – Nature et Technologies (FRQNT), grant/award no. 2018-RS-203300

Natural Sciences and Engineering Research Council (NSERC), grant/award no. RGPIN-2019-06593

Natural Sciences and Engineering Research Council (NSERC), grant/award no. RGPIN-2023-04711

Natural Sciences and Engineering Research Council (NSERC), grant/award no. RGPNS-2019-305427

Natural Sciences and Engineering Research Council (NSERC), grant/award no. RGPNS-2023-0471

Coverage:

Median Latitude: 53.682102 * Median Longitude: 0.000000 * South-bound Latitude: 53.682102 * West-bound Longitude: -60.502336 * North-bound Latitude: 53.682102 * East-bound Longitude: 60.502336

Date/Time Start: 2023-03-21T00:00:00 * Date/Time End: 2023-03-26T00:00:00

Minimum DEPTH, sediment/rock: 0.05 m * Maximum DEPTH, sediment/rock: 20.41 m

Event(s):

GL23-20 * Latitude Start: 53.682102 * Longitude Start: -60.502336 * Latitude End: 53.682102 * Longitude End: 60.502336 * Date/Time Start: 2023-03-21T00:00:00 * Date/Time End: 2023-03-26T00:00:00 * Elevation Start: 15.0 m * Elevation End: 15.0 m * Lake water depth: 245 m * Location: Grand Lake, Labrador, Canada * Method/Device: Sediment corer, UWITEC * Comment: UWITEC platform with either a percussion or piston corer.

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Gear	Gear		Girard, Juliette
2	DATE/TIME	Date/Time		Girard, Juliette		Geocode – of coring
3	Sample code/label	Sample label		Girard, Juliette
4	Hole	H		Girard, Juliette
5	Section	Sect		Girard, Juliette
6	Core depth, top	Core depth top	cm	Girard, Juliette
7	DEPTH, sediment/rock	Depth sed	m	Girard, Juliette		Geocode
8	Depth, composite	Depth comp	mcd	Girard, Juliette
9	Magnetic susceptibility	MAGS		Girard, Juliette	Multi-Sensor Core Logger	Klf
10	Anhysteretic susceptibility	kARM	SI	Girard, Juliette
11	Anhysteretic susceptibility/volume susceptibility	k(ARM)/kLF		Girard, Juliette
12	Inclination	Incl	deg	Girard, Juliette	Cryogenic magnetometer, 2G Enterprises, 755SRM-1.65
13	Maximum angular deviation	MAD	deg	Girard, Juliette	Cryogenic magnetometer, 2G Enterprises, 755SRM-1.65
14	Median destructive field	MDF	mT	Girard, Juliette	Cryogenic magnetometer, 2G Enterprises, 755SRM-1.65
15	Natural remanent magnetization	NRM	mT	Girard, Juliette	Cryogenic magnetometer, 2G Enterprises, 755SRM-1.65	demagnetization step 0
16	Natural remanent magnetization	NRM	mT	Girard, Juliette	Cryogenic magnetometer, 2G Enterprises, 755SRM-1.65	demagnetization step 5
17	Natural remanent magnetization	NRM	mT	Girard, Juliette	Cryogenic magnetometer, 2G Enterprises, 755SRM-1.65	demagnetization step 10
18	Natural remanent magnetization	NRM	mT	Girard, Juliette	Cryogenic magnetometer, 2G Enterprises, 755SRM-1.65	demagnetization step 15
19	Natural remanent magnetization	NRM	mT	Girard, Juliette	Cryogenic magnetometer, 2G Enterprises, 755SRM-1.65	demagnetization step 20
20	Natural remanent magnetization	NRM	mT	Girard, Juliette	Cryogenic magnetometer, 2G Enterprises, 755SRM-1.65	demagnetization step 25
21	Natural remanent magnetization	NRM	mT	Girard, Juliette	Cryogenic magnetometer, 2G Enterprises, 755SRM-1.65	demagnetization step 30
22	Natural remanent magnetization	NRM	mT	Girard, Juliette	Cryogenic magnetometer, 2G Enterprises, 755SRM-1.65	demagnetization step 35
23	Natural remanent magnetization	NRM	mT	Girard, Juliette	Cryogenic magnetometer, 2G Enterprises, 755SRM-1.65	demagnetization step 40
24	Natural remanent magnetization	NRM	mT	Girard, Juliette	Cryogenic magnetometer, 2G Enterprises, 755SRM-1.65	demagnetization step 45
25	Natural remanent magnetization	NRM	mT	Girard, Juliette	Cryogenic magnetometer, 2G Enterprises, 755SRM-1.65	demagnetization step 50
26	Natural remanent magnetization	NRM	mT	Girard, Juliette	Cryogenic magnetometer, 2G Enterprises, 755SRM-1.65	demagnetization step 55
27	Natural remanent magnetization	NRM	mT	Girard, Juliette	Cryogenic magnetometer, 2G Enterprises, 755SRM-1.65	demagnetization step 60
28	Natural remanent magnetization	NRM	mT	Girard, Juliette	Cryogenic magnetometer, 2G Enterprises, 755SRM-1.65	demagnetization step 65
29	Natural remanent magnetization	NRM	mT	Girard, Juliette	Cryogenic magnetometer, 2G Enterprises, 755SRM-1.65	demagnetization step 70
30	Natural remanent magnetization	NRM	mT	Girard, Juliette	Cryogenic magnetometer, 2G Enterprises, 755SRM-1.65	demagnetization step 75
31	Natural remanent magnetization	NRM	mT	Girard, Juliette	Cryogenic magnetometer, 2G Enterprises, 755SRM-1.65	demagnetization step 80
32	Coercivity of remanence/coercivity force	Hcr/Hc		Girard, Juliette	Alternating field gradient magnetometer (AGFM)
33	Saturation remanence/saturation magnetization ratio	Mrs/Ms		Girard, Juliette	Alternating field gradient magnetometer (AGFM)
34	S-ratio	S-ratio		Girard, Juliette
35	Pseudo S-ratio	Pseudo S-r		Girard, Juliette

License:

Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

55097 data points

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