Citation:

PANGAEA.921742

Name: Secondary standard for determining geochemical composition of tephra layers from deep sediment core GS16-204-22CC
Published: 2020-08-18
License: https://creativecommons.org/licenses/by/4.0/
Keywords: Geochemistry; Tephra; tephrochronology

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Abstract:

We investigated marine sediment core GS16-204-22CC for increased tephra occurrences and geochemically analysed the major element composition of tephra shards to identify their source volcano(es). In total we observed eight tephra zones of which five concentration peaks show isochronous features that can be used as independent tie-points in future studies. To ensure analytical precision, secondary standards (BCR2g (Basalt) and Lipari Obsidian (Rhyolitic)) were measured at the start and end of each run.

Reference values are listed below and in the dataset comment.

Standard SiO2 TiO2 Al2O3 FeO MnO MgO CaO Na2O K2O P2O5 Total Beam Size Date Comment

BCR2g 54.1 2.26 13.5 12.42 - 3.59 7.12 3.16 1.79 0.35 98.49 Wilson (1997) "Wilson S.A. 1997 The collection preparation and testing of USGS reference material BCR-2 Columbia River Basalt: U.S. Geological Survey Open-File Report "

std 0.8 0.05 0.2 0.2 - 0.05 0.11 0.11 0.05 0.02

Lipari 74.03 0.02 12.72 1.75 0.08 0 0.72 4.06 5.18 - 98.62 Sparks (1990) "Sparks R.S.J. 1990. – written communication to University of Edinburgh"

Lipari 73.72 - 13.04 1.76 - 0.03 0.76 4.06 5.06 - 98.43 Hunt and Hill (1996) "Hunt J.B. Hill P.G. 1996. An inter-laboratory comparison of the electron probe microanalysis of glass geochemistry. Quaternary International 34-36 229-241."

Keyword(s):

Geochemistry; Tephra; tephrochronology

Project(s):

Arctic Sea Ice and Greenland Ice Sheet Sensitivity (ice2ice)

Funding:

European Research Council (ERC), grant/award no. 610055 : Arctic Sea Ice and Greenland Ice Sheet Sensitivity

Comment:

Reference values

Standard SiO2 TiO2 Al2O3 FeO MnO MgO CaO Na2O K2O P2O5 Total Beam Size Date Comment

std 0.8 0.05 0.2 0.2 - 0.05 0.11 0.11 0.05 0.02

Lipari 74.03 0.02 12.72 1.75 0.08 0 0.72 4.06 5.18 - 98.62 Sparks (1990) "Sparks R.S.J. 1990. – written communication to University of Edinburgh"

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Comment
1	Sample code/label	Sample label		Rutledal, Sunniva	Standard
2	Silicon dioxide	SiO2	%	Rutledal, Sunniva
3	Titanium dioxide	TiO2	%	Rutledal, Sunniva
4	Aluminium oxide	Al2O3	%	Rutledal, Sunniva
5	Iron oxide, FeO	FeO	%	Rutledal, Sunniva
6	Manganese oxide	MnO	%	Rutledal, Sunniva
7	Magnesium oxide	MgO	%	Rutledal, Sunniva
8	Calcium oxide	CaO	%	Rutledal, Sunniva
9	Sodium oxide	Na2O	%	Rutledal, Sunniva
10	Potassium oxide	K2O	%	Rutledal, Sunniva
11	Phosphorus pentoxide	P2O5	%	Rutledal, Sunniva
12	Total	Total	%	Rutledal, Sunniva
13	Sample comment	Sample comment		Rutledal, Sunniva	Beam size
14	Sampling date	Sampling date		Rutledal, Sunniva
15	Sample comment	Sample comment		Rutledal, Sunniva	Time of day

License:

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

Size:

975 data points

Data

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

1 Sample label (Standard)	2 SiO2 [%]	3 TiO2 [%]	4 Al2O3 [%]	5 FeO [%]	6 MnO [%]	7 MgO [%]	8 CaO [%]	9 Na2O [%]	10 K2O [%]	11 P2O5 [%]	12 Total [%]	13 Sample comment (Beam size)	14 Sampling date	15 Sample comment (Time of day)
BC2rg	54.8531	2.2674	13.4116	12.4864	0.1975	3.6201	7.2266	3.3314	1.8030	0.3191	99.5162	5	15/01/2019	Morning
BC2rg	55.4596	2.2612	13.6097	12.2830	0.2022	3.5543	7.0749	3.1998	1.8322	0.3088	99.7857	5	15/01/2019	Morning
BC2rg	54.1750	2.2806	13.7512	12.3906	0.1939	3.6483	7.2904	3.3898	1.8437	0.2936	99.2569	5	15/01/2019	Morning
BC2rg	55.2513	2.3034	13.6040	12.1082	0.2045	3.6046	7.1458	3.4012	1.8010	0.3077	99.7317	5	15/01/2019	Mid-day
BC2rg	54.9289	2.2790	13.5044	12.5605	0.2102	3.6043	7.3170	3.3126	1.7910	0.3249	99.8328	5	15/01/2019	Mid-day
BC2rg	55.2843	2.2648	13.2899	12.4396	0.2084	3.5022	7.0146	3.3641	1.8039	0.2975	99.4695	5	15/01/2019	Mid-day
BCR2g	55.1620	2.2781	13.5307	12.2251	0.1986	3.6455	7.2455	3.0468	1.8719	0.3332	99.5375	5	27/02/2019	Morning
BCR2g	54.2849	2.2856	13.2687	12.3819	0.1936	3.5757	7.2175	3.1545	1.8337	0.3326	98.5287	5	27/02/2019	Morning
BCR2g	54.7027	2.2683	13.5231	12.6712	0.1983	3.4998	7.0965	3.2845	1.8295	0.3528	99.4268	5	27/02/2019	Morning
BCR2g	54.1892	2.2729	13.3993	12.6149	0.1960	3.5307	7.2639	3.2238	1.7516	0.3093	98.7515	5	27/02/2019	Mid-day
BCR2g	54.2159	2.2786	13.1627	12.1372	0.1784	3.5415	7.1408	3.1887	1.9008	0.3115	98.0560	5	27/02/2019	Mid-day
BCR2g	54.3684	2.2830	13.1791	12.4142	0.1982	3.5531	7.0932	3.0828	1.7675	0.3197	98.2592	5	27/02/2019	Mid-day
BCR2g	55.0734	2.2958	13.5788	11.9779	0.1913	3.6564	7.1174	3.1728	1.8738	0.3522	99.2898	5	28/02/2019	Morning
BCR2g	54.2626	2.2854	13.4974	12.2147	0.1902	3.4912	7.1439	3.2176	1.8358	0.3537	98.4924	5	28/02/2019	Morning
BCR2g	54.4043	2.2796	13.1874	12.4403	0.1891	3.6181	7.3352	3.1322	1.8172	0.3650	98.7685	5	28/02/2019	Morning
BCR2g	54.0980	2.2741	13.2499	12.3017	0.2160	3.4472	7.4018	3.2470	1.7757	0.3745	98.3859	5	28/02/2019	Mid-day
BCR2g	54.5771	2.2731	13.4195	12.7340	0.1896	3.6374	7.2197	3.0662	1.7959	0.3430	99.2555	5	28/02/2019	Mid-day
BCR2g	54.3999	2.2727	13.3650	12.3091	0.1932	3.7443	7.1631	3.1076	1.7298	0.3484	98.6330	5	28/02/2019	Mid-day
BCR2g	54.0200	2.2711	13.4453	12.2913	0.1832	3.5070	7.0456	3.0998	1.8393	0.3507	98.0532	5	01/03/2019	Morning
BCR2g	54.7559	2.2758	13.5388	12.4736	0.1934	3.6003	7.3342	3.0984	1.7626	0.3603	99.3933	5	01/03/2019	Morning
BCR2g	53.3935	2.2794	13.5851	12.3466	0.2106	3.6455	7.1975	3.1306	1.8137	0.3622	97.9647	5	01/03/2019	Morning
BCR2g	54.4954	2.2794	13.4916	12.4716	0.1994	3.5765	7.3046	3.1598	1.7441	0.3497	99.0720	5	01/03/2019	Morning
BCR2g	54.7092	2.2798	13.2669	12.4073	0.2014	3.5270	7.2976	3.3040	1.7633	0.3722	99.1286	5	01/03/2019	Morning
BCR2g	54.0457	2.2447	13.6067	12.9347	0.1868	3.5469	7.1127	3.2370	1.7874	0.3665	99.0692	5	15/06/2018	Morning
BCR2g	54.8295	2.2528	13.2205	12.2290	0.1973	3.7346	7.1051	3.3563	1.8523	0.3420	99.1194	5	15/06/2018	Morning
BCR2g	54.9075	2.2662	13.4968	12.7091	0.2036	3.5351	7.1165	3.3317	1.8112	0.3655	99.7432	5	15/06/2018	Morning
BCR2g	54.4974	2.2608	13.5912	12.9959	0.1990	3.7956	7.1204	3.2124	1.7477	0.3612	99.7817	5	15/06/2018	Morning
BCR2g	54.5431	2.2629	13.7626	12.6167	0.1970	3.5310	7.0452	3.1231	1.8873	0.3620	99.3310	5	15/06/2018	Morning
BCR2g	54.8919	2.2678	13.5747	12.4724	0.1969	3.3274	7.2670	3.2111	1.7232	0.3441	99.2764	5	19/06/2019	Morning
BCR2g	53.8806	2.2557	13.6025	12.2979	0.1938	3.3969	7.0335	3.1586	1.7685	0.3530	97.9409	5	19/06/2019	Morning
BCR2g	54.3940	2.2731	13.9868	12.3046	0.1962	3.4170	7.0327	3.1967	1.7336	0.3697	98.9045	5	19/06/2019	Morning
BCR2g	54.3039	2.2654	13.0604	12.3288	0.1993	3.4500	6.9448	3.1870	1.7941	0.3539	97.8875	5	19/06/2019	Morning
BCR2g	54.6076	2.2701	13.3608	12.2559	0.1918	3.2707	6.9571	3.1110	1.7141	0.3476	98.0866	5	19/06/2019	Morning
BCR2g	54.6517	2.2741	13.5341	12.4121	0.1928	3.6311	7.1760	3.3373	1.7725	0.3587	99.3403	5	20/06/2019	Morning
BCR2g	54.2451	2.2537	13.4719	12.9452	0.1913	3.6880	7.0602	3.1943	1.7762	0.3280	99.1539	5	20/06/2019	Morning
BCR2g	54.8633	2.2335	13.5801	12.7230	0.1889	3.6356	7.1421	3.3304	1.6862	0.3316	99.7144	5	20/06/2019	Morning
BCR2g	54.8611	2.2478	13.3360	12.5013	0.1950	3.6700	7.0344	3.2463	1.8371	0.3288	99.2578	5	20/06/2019	Mid-day
BCR2g	53.8560	2.2575	13.5417	12.4923	0.1832	3.6885	7.1780	3.1533	1.7546	0.3356	98.4407	5	20/06/2019	Mid-day
BCR2g	54.3060	2.2503	13.6940	12.5557	0.1868	3.6468	7.0781	3.2279	1.7851	0.3505	99.0811	5	20/06/2019	Mid-day
BCR2g	55.5824	2.2335	13.6851	12.2594	0.1929	3.6383	7.1672	3.0673	1.8101	0.3479	99.9842	5	20/06/2019	End of run
BCR2g	54.3494	2.2623	13.3043	12.5287	0.1866	3.6148	7.1199	3.2519	1.7333	0.3729	98.7241	5	20/06/2019	End of run
BCR2g	54.5942	2.2685	13.2206	12.2634	0.2011	3.6255	6.8464	3.2268	1.7363	0.3643	98.3470	5	20/06/2019	End of run
BCR2g	54.4900	2.2532	13.5308	12.6562	0.1967	3.6006	7.1618	3.1707	1.8586	0.3528	99.2713	5	20/06/2019	End of run
BCR2g	55.2166	2.2641	13.4166	12.3394	0.1979	3.6811	7.1789	3.2127	1.8696	0.3649	99.7418	5	20/06/2019	End of run
BCR2g	54.7121	2.2480	13.3334	12.7593	0.1932	3.5790	7.1827	3.2811	1.6355	0.3709	99.2952	5	20/06/2019	End of run
BCR2g	54.9430	2.2642	13.6677	12.2808	0.1919	3.5490	7.2828	3.3009	1.8982	0.3556	99.7341	5	05/12/2019	Morning
BCR2g	54.5324	2.2544	13.6370	12.1083	0.1949	3.6247	7.0510	3.1844	1.6977	0.3600	98.6448	5	05/12/2019	Morning
BCR2g	54.3996	2.2534	13.6514	12.7851	0.1897	3.7284	6.9893	3.2324	1.7771	0.3618	99.3683	5	05/12/2019	Morning
BCR2g	54.2500	2.2689	13.1277	12.2375	0.2030	3.5907	7.1267	3.1810	1.9673	0.3407	98.2934	5	05/12/2019	Mid-day
BCR2g	53.9880	2.2421	13.3577	12.0584	0.1921	3.5793	7.2833	3.0993	1.8266	0.3147	97.9416	5	05/12/2019	Mid-day
BCR2g	54.6960	2.2633	13.1669	12.2047	0.1915	3.6128	7.1640	3.0778	1.8852	0.3164	98.5786	5	05/12/2019	Mid-day
BCR2g	54.1257	2.2595	13.2821	12.4921	0.1883	3.7511	6.9960	3.3964	1.8709	0.3382	98.7002	5	05/12/2019	Mid-day
Lipari	73.4952	0.0847	12.8748	1.5341	0.0831	0.0359	0.7225	4.1563	5.2380	0.0112	98.2358	3	05/12/2019	Morning
Lipari	73.8938	0.0855	13.1689	1.4039	0.0547	0.0259	0.7386	4.0745	5.1931	0.0271	98.6659	3	05/12/2019	Morning
Lipari	74.6298	0.0781	13.1702	1.5457	0.0686	0.0593	0.8372	4.2435	5.3586	0.0085	99.9995	3	05/12/2019	Morning
Lipari	74.0311	0.0813	13.1180	1.5584	0.0630	0.0292	0.8367	4.2754	5.2656	0.0154	99.2742	3	05/12/2019	Morning
Lipari	74.1558	0.0829	13.0996	1.6143	0.0714	0.0347	0.7560	4.1552	5.1916	0.0068	99.1683	3	03/12/2019	Morning
Lipari	74.4336	0.0817	13.4381	1.5794	0.0694	0.0458	0.7793	4.4291	5.1552	0.0041	100.0157	3	03/12/2019	Morning
Lipari	74.4287	0.0749	13.9511	1.6147	0.0571	0.0358	0.7438	4.2176	5.0117	0.0152	100.1506	3	03/12/2019	Morning
Lipari	74.2312	0.0849	13.5844	1.5134	0.0564	0.0201	0.7549	4.5296	5.1725	0.0089	99.9562	3	03/12/2019	Mid-day
Lipari	74.3086	0.0790	13.9200	1.6108	0.0458	0.0352	0.7229	4.3891	5.1858	0.0065	100.3038	3	03/12/2019	Mid-day
Lipari	73.9954	0.0792	13.6517	1.6035	0.0598	0.0299	0.8049	4.2630	5.2894	0.0068	99.7834	3	03/12/2019	Mid-day
Lipari	74.0612	0.0780	13.1948	1.5747	0.0582	0.0500	0.7371	4.3744	5.1303	0.0079	99.2665	3	03/12/2019	Mid-day
Lipari	74.1484	0.0757	13.3020	1.7126	0.0518	0.0321	0.7630	4.4941	5.3281	0.0195	99.9274	3	03/12/2019	Mid-day
Lipari	74.1309	0.0787	13.7944	1.3581	0.0734	0.0585	0.7587	4.4094	5.2170	0.0197	99.8987	3	03/12/2019	Mid-day