Citation:

PANGAEA.953142

Name: Accumulation rates from sediment core 16-KP-04-L19B, Lake Rauchuagytgyn, expedition to Chukotka 2016, Russian Arctic
Published: 2023-05-02
License: https://creativecommons.org/licenses/by/4.0/
Keywords: Diatom assemblage; Diatom Stratigraphy; Lake sediment core; Mercury concentration; organic carbon composition; Russian Arctic

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Abstract:

These dataset contains multi proxy data from short sediment core 16-KP-04-L19B obtained from Arctic glacial lake Rauchuagytgyn (N 67.7888, E 168.7380) by gravity coring during the Chukotka 2018 expedition (Siberia). We provide original count data of diatom species from 20 samples along a ca. 10.5 cm interval in the sediment core, next to organic carbon, nitrogen, and mercury concentrations. The data sets provides, calculated from the original data, estimated accumulation rates for diatom valves (diatom accumulation rate, DAR), organic carbon (organic carbon accumulation rates, OCAR), and mercury (Hg accumulation rates, HgAR).

Keyword(s):

Diatom assemblage; Diatom Stratigraphy; Lake sediment core; Mercury concentration; organic carbon composition; Russian Arctic

Related to:

Biskaborn, Boris K; Forster, Amy; Pfalz, Gregor; Pestryakova, Luidmila A; Stoof-Leichsenring, Kathleen Rosmarie; Strauss, Jens; Kröger, Tim; Herzschuh, Ulrike (2023): Diatom responses and geochemical feedbacks to environmental changes at Lake Rauchuagytgyn (Far East Russian Arctic). Biogeosciences, 20(9), 1691-1712, https://doi.org/10.5194/bg-20-1691-2023

Funding:

European Research Council (ERC), grant/award no. 772852 : Glacial Legacy on the establishment of evergreen vs. summergreen boreal forests

Coverage:

Latitude: 67.820000 * Longitude: 168.700000

Date/Time Start: 2016-07-19T00:00:00 * Date/Time End: 2016-07-19T00:00:00

Minimum DEPTH, sediment/rock: 0.0075 m * Maximum DEPTH, sediment/rock: 0.1025 m

Event(s):

16-KP-04-L19_Core_B * Latitude: 67.820000 * Longitude: 168.700000 * Date/Time: 2016-07-19T00:00:00 * Elevation: 625.0 m * Lake water depth: 31 m * Recovery: 0.23 m * Location: Tschukotka, Sibiria, Russia * Campaign: (Keperveem_2016) * Basis: AWI Arctic Land Expedition * Method/Device: Gravity corer, UWITEC (GCUWI) * Comment: Camp 4

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	DEPTH, sediment/rock	Depth sed	m	Biskaborn, Boris K		Geocode – Composite depth midpoint
2	Density, dry bulk	DBD	g/cm³	Biskaborn, Boris K
3	Age, minimum/young	Age min	a AD/CE	Biskaborn, Boris K
4	Age, maximum/old	Age max	a AD/CE	Biskaborn, Boris K
5	Age	Age	a AD/CE	Biskaborn, Boris K		mean
6	AGE	Age	ka BP	Biskaborn, Boris K		Geocode
7	Sedimentation rate per year	SR	cm/a	Biskaborn, Boris K	Calculated, based on minimum age	minimum
8	Sedimentation rate per year	SR	cm/a	Biskaborn, Boris K	Calculated, based on maximum age	maximum
9	Sedimentation rate per year	SR	cm/a	Biskaborn, Boris K	Calculated, based on mean age	weighted mean
10	Accumulation rate per year	Acc rate	g/cm²/a	Biskaborn, Boris K	Calculated, based on minimum age	minimum
11	Accumulation rate per year	Acc rate	g/cm²/a	Biskaborn, Boris K	Calculated, based on maximum age	maximum
12	Accumulation rate per year	Acc rate	g/cm²/a	Biskaborn, Boris K	Calculated, based on mean age	mean
13	Carbon, organic, total	TOC	%	Biskaborn, Boris K
14	Accumulation rate, total organic carbon per year	Acc rate TOC	g/m²/a	Biskaborn, Boris K	Calculated, based on minimum age	minimum
15	Accumulation rate, total organic carbon per year	Acc rate TOC	g/m²/a	Biskaborn, Boris K	Calculated, based on maximum age	maximum
16	Accumulation rate, total organic carbon per year	Acc rate TOC	g/m²/a	Biskaborn, Boris K	Calculated, based on mean age	mean
17	Diatom valves, per unit sediment mass	Diatom valv/sed	#/g	Biskaborn, Boris K
18	Accumulation rate, diatoms per year	Acc rate diatom	10⁹ #/m²/a	Biskaborn, Boris K	Calculated, based on minimum age	minimum
19	Accumulation rate, diatoms per year	Acc rate diatom	10⁹ #/m²/a	Biskaborn, Boris K	Calculated, based on maximum age	maximum
20	Accumulation rate, diatoms per year	Acc rate diatom	10⁹ #/m²/a	Biskaborn, Boris K	Calculated, based on mean age	mean
21	Mercury	Hg	µg/kg	Biskaborn, Boris K
22	Accumulation rate, mercury per year	Acc rate Hg	µg/m²/a	Biskaborn, Boris K	Calculated, based on minimum age	minimum
23	Accumulation rate, mercury per year	Acc rate Hg	µg/m²/a	Biskaborn, Boris K	Calculated, based on maximum age	maximum
24	Accumulation rate, mercury per year	Acc rate Hg	µg/m²/a	Biskaborn, Boris K	Calculated, based on mean age	mean

License:

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

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

440 data points

Data

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

1 Depth sed [m] (Composite depth midpoint)	2 DBD [g/cm³]	3 Age min [a AD/CE]	4 Age max [a AD/CE]	5 Age [a AD/CE] (mean)	6 Age [ka BP]	7 SR [cm/a] (minimum, Calculated, based on...)	8 SR [cm/a] (maximum, Calculated, based on...)	9 SR [cm/a] (weighted mean, Calculated, ba...)	10 Acc rate [g/cm²/a] (minimum, Calculated, based on...)	11 Acc rate [g/cm²/a] (maximum, Calculated, based on...)	12 Acc rate [g/cm²/a] (mean, Calculated, based on me...)	13 TOC [%]	14 Acc rate TOC [g/m²/a] (minimum, Calculated, based on...)	15 Acc rate TOC [g/m²/a] (maximum, Calculated, based on...)	16 Acc rate TOC [g/m²/a] (mean, Calculated, based on me...)	17 Diatom valv/sed [#/g]	18 Acc rate diatom [10⁹ #/m²/a] (minimum, Calculated, based on...)	19 Acc rate diatom [10⁹ #/m²/a] (maximum, Calculated, based on...)	20 Acc rate diatom [10⁹ #/m²/a] (mean, Calculated, based on me...)	21 Hg [µg/kg]	22 Acc rate Hg [µg/m²/a] (minimum, Calculated, based on...)	23 Acc rate Hg [µg/m²/a] (maximum, Calculated, based on...)	24 Acc rate Hg [µg/m²/a] (mean, Calculated, based on me...)
0.0075	0.235	2009	2012	2011	-0.0606	0.104	0.192	0.139	244.79	451.92	326.39	3.54	8.65	15.98	11.54	695652173.9	170.29	314.38	227.05	162.44	39.76	73.41	53.02
0.0125	0.232	2004	2008	2006	-0.0560	0.081	0.096	0.089	187.10	223.08	207.14	3.36	6.29	7.50	6.96	804637681.2	150.55	179.50	166.67	163.86	30.66	36.55	33.94
0.0175	0.229	1997	2003	2001	-0.0505	0.074	0.109	0.089	168.07	248.45	204.08	3.48	5.85	8.64	7.10	453293155.4	76.18	112.62	92.51	188.35	31.66	46.80	38.44
0.0225	0.231	1987	1994	1990	-0.0404	0.035	0.043	0.034	81.38	99.62	79.15	3.41	2.77	3.39	2.70	520231213.9	42.33	51.82	41.18	189.50	15.42	18.88	15.00
0.0275	0.225	1973	1983	1976	-0.0258	0.030	0.045	0.034	68.74	100.65	77.21	3.52	2.42	3.54	2.72	774939969.4	53.27	78.00	59.83	185.72	12.77	18.69	14.34
0.0325	0.231	1961	1974	1965	-0.0145	0.045	0.081	0.063	103.02	186.10	144.23	3.02	3.11	5.62	4.36	529867178.1	54.59	98.61	76.42	233.57	24.06	43.47	33.69
0.0375	0.251	1949	1968	1957	-0.0065	0.037	0.093	0.063	92.16	232.10	156.67	3.01	2.77	6.99	4.72	459770114.9	42.37	106.71	72.03	238.78	22.00	55.42	37.41
0.0425	0.271	1936	1961	1948	0.0024	0.028	0.074	0.052	76.87	198.96	140.93	3.01	2.31	5.98	4.24	437500000.0	33.63	87.05	61.66	244.74	18.81	48.69	34.49
0.0475	0.282	1917	1955	1938	0.0121	0.025	0.114	0.052	69.14	320.57	146.93	3.09	2.14	9.92	4.54	928352725.0	64.19	297.61	136.40	188.74	13.05	60.50	27.73
0.0525	0.293	1903	1950	1930	0.0205	0.052	0.104	0.068	152.78	305.56	198.20	2.91	4.45	8.90	5.78	2003752345.0	306.13	612.26	397.14	197.60	30.19	60.38	39.16
0.0575	0.304	1893	1945	1922	0.0278	0.039	0.132	0.069	118.89	400.46	211.35	2.91	3.46	11.65	6.15	520231213.9	61.85	208.33	109.95	216.47	25.73	86.69	45.75
0.0625	0.309	1883	1941	1916	0.0344	0.063	0.119	0.083	193.00	367.62	257.33	2.91	5.63	10.72	7.50	792969274.1	153.04	291.51	204.06	214.95	41.49	79.02	55.31
0.0675	0.313	1874	1937	1910	0.0405	0.050	0.132	0.083	156.30	411.31	260.49	2.76	4.31	11.35	7.19	947775628.6	148.13	389.83	246.89	213.66	33.39	87.88	55.66
0.0725	0.319	1866	1933	1904	0.0462	0.076	0.125	0.093	241.38	398.28	295.02	2.70	6.51	10.73	7.95	928433268.9	224.10	369.77	273.91	208.33	50.29	82.97	61.46
0.0775	0.324	1859	1929	1898	0.0517	0.057	0.156	0.093	184.02	506.05	299.88	2.63	4.84	13.31	7.89	735862861.9	135.41	372.38	220.67	186.94	34.40	94.60	56.06
0.0825	0.328	1851	1926	1893	0.0570	0.078	0.139	0.096	256.63	456.23	315.85	2.66	6.82	12.13	8.40	1000958773.0	256.87	456.67	316.15	178.92	45.92	81.63	56.51
0.0875	0.333	1844	1922	1888	0.0623	0.063	0.139	0.096	207.86	461.90	319.78	2.66	5.54	12.30	8.52	580270793.0	120.61	268.03	185.56	192.83	40.08	89.07	61.66
0.0925	0.337	1837	1919	1883	0.0675	0.081	0.125	0.096	272.01	421.62	324.32	2.57	7.00	10.85	8.35	800781250.0	217.82	337.63	259.71	187.96	51.13	79.25	60.96
0.0975	0.341	1831	1915	1877	0.0728	0.068	0.147	0.096	230.08	500.75	327.42	2.56	5.88	12.80	8.37	982748815.2	226.11	492.12	321.77	213.29	49.07	106.81	69.83
0.1025	0.344	1824	1911	1872	0.0780	0.078	0.125	0.100	269.05	430.49	344.39	2.63	7.09	11.34	9.07	1495028409.0	402.24	643.59	514.87	202.40	54.46	87.13	69.70