Citation:

PANGAEA.918634

Name: Hydrochemical, hydrophysical and sedimentological properties of the chimney mud of pockmark Chez-le-Bart (CB) in Lake Neuchatel, Switzerland in 2017
Published: 2020-06-10
License: https://creativecommons.org/licenses/by/4.0/
Keywords: chimney; Karst; Lake Neuchatel; LGD lacustrine groundwater discharge; Pockmark; ROV remotely operated vehicle; sediment fluidization; SGD submarine groundwater discharge

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

Published: 2020-06-10 • DOI registered: 2020-07-10

RIS Citation BibTeX Citation Text Citation ShareShow Map Google Earth

Abstract:

The pockmark mud, i.e. suspended sediment in the chimney, was sampled with a 5 l Niskin bottle (Hydro-Bios, Kiel) that was lowered from the boat to four depths within the chimney. For this we attached 20 kg of additional weight below the Niskin bottle and used two GoDevil messengers (2x 870 g; General Oceanics, Miami FL) to activate the closing mechanism of the bottle in the mud.

Keyword(s):

chimney; Karst; Lake Neuchatel; LGD lacustrine groundwater discharge; Pockmark; ROV remotely operated vehicle; sediment fluidization; SGD submarine groundwater discharge

Related to:

Wirth, Stefanie B; Bouffard, Damien; Zopfi, Jakob (2020): Lacustrine Groundwater Discharge Through Giant Pockmarks (Lake Neuchatel, Switzerland). Frontiers in Water, 2, 13, https://doi.org/10.3389/frwa.2020.00013

Coverage:

Latitude: 46.893136 * Longitude: 6.797818

Date/Time Start: 2017-06-15T00:00:00 * Date/Time End: 2017-09-21T00:00:00

Minimum DEPTH, water: 100.0 m * Maximum DEPTH, water: 175.0 m

Event(s):

CB_Niskin_1 (Chez-le-Bart) * Latitude: 46.893136 * Longitude: 6.797818 * Date/Time: 2017-06-15T00:00:00 * Elevation Start: 329.0 m * Elevation End: 254.0 m * Location: Lake Neuchatel, Switzerland * Method/Device: (NIS_5L)

CB_Niskin_2 (Chez-le-Bart) * Latitude: 46.893136 * Longitude: 6.797818 * Date/Time: 2017-09-21T00:00:00 * Elevation Start: 329.0 m * Elevation End: 254.0 m * Location: Lake Neuchatel, Switzerland * Method/Device: (NIS_5L)

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Event label	Event		Wirth, Stefanie B
2	Optional event label	Event 2		Wirth, Stefanie B
3	Latitude of event	Latitude		Wirth, Stefanie B
4	Longitude of event	Longitude		Wirth, Stefanie B
5	Date/Time of event	Date/Time		Wirth, Stefanie B
6	Environment	Environment		Wirth, Stefanie B
7	DEPTH, water	Depth water	m	Wirth, Stefanie B	RBR Sensors (RBRS)	Geocode
8	Oxygen	O2	mg/l	Wirth, Stefanie B
9	δ18O	δ18O	‰	Wirth, Stefanie B		VSMOW
10	δ18O, standard deviation	δ18O std dev	±	Wirth, Stefanie B		VSMOW
11	Nitrate	[NO3]-	mg/l	Wirth, Stefanie B
12	Ammonium	[NH4]+	mg/l	Wirth, Stefanie B
13	Calcium	Ca2+	mg/l	Wirth, Stefanie B
14	Carbon, inorganic, total	TIC	%	Wirth, Stefanie B		wt%
15	Carbon, organic, total	TOC	%	Wirth, Stefanie B		wt%
16	Density	Density	g/cm³	Wirth, Stefanie B
17	Size fraction < 0.002 mm, clay	<2 µm	%	Wirth, Stefanie B
18	Size fraction 0.063-0.020 mm, coarse silt	63-20 µm gU	%	Wirth, Stefanie B
19	Size fraction 0.630-0.200 mm, medium sand	630-200 µm	%	Wirth, Stefanie B
20	Iron 2+	Fe2+	µmol/l	Wirth, Stefanie B
21	δ Deuterium	δD	‰ SMOW	Wirth, Stefanie B		VSMOW
22	δ Deuterium, standard deviation	δD std dev	±	Wirth, Stefanie B
23	Chloride	Cl-	mg/l	Wirth, Stefanie B
24	Sulfate	[SO4]2-	mg/l	Wirth, Stefanie B
25	Sodium	Na+	mg/l	Wirth, Stefanie B
26	Potassium	K+	mg/l	Wirth, Stefanie B
27	Magnesium	Mg2+	mg/l	Wirth, Stefanie B
28	pH	pH		Wirth, Stefanie B
29	Conductivity, specific	Cond	µS/m	Wirth, Stefanie B
30	Oxygen	O2	mg/l	Wirth, Stefanie B

License:

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

Size:

210 data points

Data

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

1 Event	2 Event 2	3 Latitude	4 Longitude	5 Date/Time	6 Environment	7 Depth water [m]	8 O2 [mg/l]	9 δ18O [‰] (VSMOW)	10 δ18O std dev [±] (VSMOW)	11 [NO3]- [mg/l]	12 [NH4]+ [mg/l]	13 Ca2+ [mg/l]	14 TIC [%] (wt%)	15 TOC [%] (wt%)	16 Density [g/cm³]	17 <2 µm [%]	18 63-20 µm gU [%]	19 630-200 µm [%]	20 Fe2+ [µmol/l]	21 δD [‰ SMOW] (VSMOW)	22 δD std dev [±]	23 Cl- [mg/l]	24 [SO4]2- [mg/l]	25 Na+ [mg/l]	26 K+ [mg/l]	27 Mg2+ [mg/l]	28 pH	29 Cond [µS/m]	30 O2 [mg/l]
CB_Niskin_1	Chez-le-Bart	46.8931	6.7978	2017-06-15	water column	100.0		-8.36	0.03	4.90		51.30			1.00					-61.1	0.31	10.20	11.90	6.50	1.90	6.40
CB_Niskin_1	Chez-le-Bart	46.8931	6.7978	2017-06-15	water column	129.0		-8.36	0.01	4.90		51.80			1.00					-61.2	0.08	10.30	12.00	7.10	1.90	6.40
CB_Niskin_1	Chez-le-Bart	46.8931	6.7978	2017-06-15	water column	133.0		-8.33	0.02	4.90		51.40			1.00					-61.0	0.09	10.30	11.90	6.50	1.90	6.40
CB_Niskin_1	Chez-le-Bart	46.8931	6.7978	2017-06-15	mud	136.0		-10.09	0.02		1.90	75.50	5.15	0.35	1.12	27.500	68.206	4.294		-70.9	0.03	4.60	12.20	4.00	1.20	21.30
CB_Niskin_1	Chez-le-Bart	46.8931	6.7978	2017-06-15	mud	146.0		-10.11	0.02		1.80	78.50	5.09	0.32	1.44	25.824	66.819	7.357		-70.9	0.04	4.50	19.60	4.00	1.30	21.50
CB_Niskin_1	Chez-le-Bart	46.8931	6.7978	2017-06-15	mud	160.0		-10.14	0.02		1.80	77.20	5.05	0.30	1.49	24.427	64.383	11.190		-70.9	0.24	4.50	16.70	4.00	1.30	21.30
CB_Niskin_1	Chez-le-Bart	46.8931	6.7978	2017-06-15	mud	175.0		-10.11	0.02		1.80	79.00	5.05	0.32		25.213	65.545	9.242		-70.8	0.05	4.50	17.90	4.00	1.30	21.50
CB_Niskin_2	Chez-le-Bart	46.8931	6.7978	2017-09-21	water column	100.0	8.41	-8.35	0.03	4.99		46.13							8.6	-61.1	0.36	10.16	11.88	6.93	2.01	5.78	7.63		8.41
CB_Niskin_2	Chez-le-Bart	46.8931	6.7978	2017-09-21	water column	132.0	8.57	-8.36	0.02	4.87		47.16							0.0	-61.1	0.12	10.16	11.87	6.57	1.87	5.90	7.67	305	8.57
CB_Niskin_2	Chez-le-Bart	46.8931	6.7978	2017-09-21	water column	133.0	8.50	-8.33	0.01			51.30							1.4	-60.9	0.05	10.14	11.82	6.41	1.84	6.08	7.76	313	8.50
CB_Niskin_2	Chez-le-Bart	46.8931	6.7978	2017-09-21	mud	138.0	0.09	-10.07	0.02		1.29	71.83							53.9	-70.9	0.08	5.15	10.89	4.89	1.12	20.08	7.39	425	0.09
CB_Niskin_2	Chez-le-Bart	46.8931	6.7978	2017-09-21	mud	160.0	0.13	-10.10	0.02		1.59	76.94							34.6	-70.9	0.08	6.04	6.74	4.78	1.19	21.48	7.35	393	0.13
CB_Niskin_2	Chez-le-Bart	46.8931	6.7978	2017-09-21	mud	175.0	0.10	-10.10	0.03		1.61	72.94							59.6	-70.8	0.24	4.75	6.12	4.32	1.27	20.69	7.38	399	0.10