Citation:

1999PA000469

Name: (Table 1) Geichemical composition of Black Sea fluffy layer and underlying sediments
Published: 2001
License: https://creativecommons.org/licenses/by/3.0/

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Published: 2001 (exact date unknown) • DOI registered: 2015-08-07

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Abstract:

Holocene Black Sea sediments recovered in 1988 and 1993 from box cores and gravity cores were analyzed geochemically, microscopically, and with backscattered electron imagery (BSEI) in order to determine the temporal, geochemical, and sedimentological relationships between the benthic flocculent layer (often referred to as the fluff layer) and the formation of underlying laminated unit I sediments. Existence of a permanent benthic fluff layer in the Black Sea basin is suggested, acting as a geochemical transition layer within which all sedimentary particles are hydraulically sorted and particles subject to dissolution or organic remineralization are altered prior to accumulation. We propose that particle residence time within the benthic fluff layer is a key factor in determining sedimentary microfabric and geochemical composition of laminated unit I sediments. We present a schematic model depicting the above relationships and use it to propose a paleoflux scenario for laminae formation in the unit II sapropel.

Coverage:

Median Latitude: 42.377333 * Median Longitude: 35.103333 * South-bound Latitude: 41.350000 * West-bound Longitude: 29.490000 * North-bound Latitude: 43.380000 * East-bound Longitude: 41.250000

Minimum DEPTH, sediment/rock: 0 m * Maximum DEPTH, sediment/rock: 0 m

Event(s):

KN134-8_Leg1_10 * Latitude: 42.090000 * Longitude: 29.490000 * Location: Black Sea * Campaign: * Basis: Knorr * Method/Device: Box corer (BC) * Comment: Position estimated from map

KN134-8_Leg1_13/14 * Latitude: 42.920000 * Longitude: 31.500000 * Location: Black Sea * Campaign: * Basis: Knorr * Method/Device: Box corer (BC) * Comment: Position estimated from map

KN134-8_Leg1_20 * Latitude: 43.040000 * Longitude: 36.910000 * Location: Black Sea * Campaign: * Basis: Knorr * Method/Device: Box corer (BC) * Comment: Position estimated from map

Comment:

Samples were taken in the fluffy layer and inm the underlaing 2 cm sediment.

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Comment
1	Event label	Event		Pilskaln, Cynthia
2	Latitude of event	Latitude		Pilskaln, Cynthia
3	Longitude of event	Longitude		Pilskaln, Cynthia
4	DEPTH, sediment/rock	Depth sed	m	Pilskaln, Cynthia	Geocode
5	Size fraction	Size fraction		Pilskaln, Cynthia
6	Calcium carbonate	CaCO3	%	Pilskaln, Cynthia
7	Opal, biogenic silica	bSiO2	%	Pilskaln, Cynthia
8	Carbon, organic, particulate	POC	%	Pilskaln, Cynthia
9	Lithogenic material	Litho	%	Pilskaln, Cynthia

License:

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

Size:

284 data points

Data

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

1 Event	2 Latitude	3 Longitude	4 Depth sed [m]	5 Size fraction	6 CaCO3 [%]	7 bSiO2 [%]	8 POC [%]	9 Litho [%]
KN134-8_Leg1_10	42.09	29.49	0	fluff	29	11	6	33
KN134-8_Leg1_10	42.09	29.49	0	>500 µm	66	3	4	23
KN134-8_Leg1_10	42.09	29.49	0	500-250 µm	57	3	8	26
KN134-8_Leg1_10	42.09	29.49	0	250-125 µm	43	4	10	28
KN134-8_Leg1_10	42.09	29.49	0	125-63 µm	37	4	9	39
KN134-8_Leg1_10	42.09	29.49	0	<63 µm	37	2	4	51
KN134-8_Leg1_13/14	42.92	31.50	0	fluff	55	2	6	29
KN134-8_Leg1_13/14	42.92	31.50	0	>500 µm	58	4	6	23
KN134-8_Leg1_13/14	42.92	31.50	0	500-250 µm	57	3	5	26
KN134-8_Leg1_13/14	42.92	31.50	0	250-125 µm	45	4	9	31
KN134-8_Leg1_13/14	42.92	31.50	0	125-63 µm	36	6	10	36
KN134-8_Leg1_13/14	42.92	31.50	0	<63 µm	41	4	7	36
KN134-8_Leg1_BSK1	43.38	32.04	0	>500 µm	64	4	5	23
KN134-8_Leg1_BSK1	43.38	32.04	0	500-250 µm	56	4	7	25
KN134-8_Leg1_BSK1	43.38	32.04	0	250-125 µm	36	4	8	36
KN134-8_Leg1_BSK1	43.38	32.04	0	125-63 µm	46	4	10	30
KN134-8_Leg1_BSK1	43.38	32.04	0	<63 µm	40	6	7	38
KN134-8_Leg1_BSK2	43.01	34.11	0	fluff	29	4	6	51
KN134-8_Leg1_BSK2	43.01	34.11	0	>500 µm	60	4	5	23
KN134-8_Leg1_BSK2	43.01	34.11	0	500-250 µm	53	4	7	26
KN134-8_Leg1_BSK2	43.01	34.11	0	250-125 µm	43	4	8	36
KN134-8_Leg1_BSK2	43.01	34.11	0	125-63 µm	37	4	8	41
KN134-8_Leg1_BSK2	43.01	34.11	0	<63 µm	29	4	9	54
KN134-8_Leg1_20	43.04	36.91	0	>500 µm	68	3	4	21
KN134-8_Leg1_20	43.04	36.91	0	500-250 µm	56	4	7	27
KN134-8_Leg1_20	43.04	36.91	0	250-125 µm	47	3	8	31
KN134-8_Leg1_20	43.04	36.91	0	125-63 µm	36	4	12	34
KN134-8_Leg1_20	43.04	36.91	0	<63 µm	41	3	6	42
KN134-8_Leg1_BSK3	42.27	37.84	0	>500 µm	48	3	6	41
KN134-8_Leg1_BSK3	42.27	37.84	0	500-250 µm	54	4	10	23
KN134-8_Leg1_BSK3	42.27	37.84	0	250-125 µm	44	6	12	24
KN134-8_Leg1_BSK3	42.27	37.84	0	125-63 µm	26	5	15	38
KN134-8_Leg1_BSK3	42.27	37.84	0	<63 µm	29	5	3	53
KN134-8_Leg1_48	42.59	37.68	0	fluff	51	4	6	31
KN134-8_Leg1_48	42.59	37.68	0	>500 µm	70	3	4	19
KN134-8_Leg1_48	42.59	37.68	0	500-250 µm	62	4	5	23
KN134-8_Leg1_48	42.59	37.68	0	250-125 µm	41	6	9	31
KN134-8_Leg1_48	42.59	37.68	0	125-63 µm	33	6	15	25
KN134-8_Leg1_48	42.59	37.68	0	<63 µm	54	3	5	32
KN134-8_Leg1_47	42.51	37.95	0	fluff	33	9	7	29
KN134-8_Leg1_47	42.51	37.95	0	>500 µm	67	4	4	21
KN134-8_Leg1_47	42.51	37.95	0	500-250 µm	58	2	6	26
KN134-8_Leg1_47	42.51	37.95	0	250-125 µm	42	9	11	27
KN134-8_Leg1_47	42.51	37.95	0	125-63 µm	34	6	13	32
KN134-8_Leg1_47	42.51	37.95	0	<63 µm	51	3	5	34
KN134-8_Leg1_27/28	41.63	40.10	0	fluff	30	7	8	45
KN134-8_Leg1_27/28	41.63	40.10	0	>500 µm	47		4
KN134-8_Leg1_27/28	41.63	40.10	0	500-250 µm	48	4	7	34
KN134-8_Leg1_27/28	41.63	40.10	0	250-125 µm	34	6	9	38
KN134-8_Leg1_27/28	41.63	40.10	0	125-63 µm	26	6	9	47
KN134-8_Leg1_27/28	41.63	40.10	0	<63 µm	29	6	4	54
KN134-8_Leg1_36	42.38	31.74	0	fluff	29	6	4	54
KN134-8_Leg1_37	42.04	31.68	0	fluff	28	6	7	49
KN134-8_Leg1_BS	42.16	32.92	0	fluff	24	7	6	56
KN134-8_Leg1_44	42.22	34.10	0	fluff	16	7	8	69
KN134-8_Leg1_31	42.07	37.24	0	fluff	32	6	6	47
KN134-8_Leg1_30	41.35	41.25	0	fluff	11	8	9	72
KN134-8_Leg1_30	41.35	41.25		data