. 2021 Sep 2;8:231. doi: 10.1038/s41597-021-01013-7

Table 1.

DEEP site tephra overview.

Tephra	TAS	Age ± 2σ [ka]	SEM-EDS (Pisa)	EPMA-WDS (IGAG)	EPMA-WDS (UoC)	LA-ICP-MS (iCRAG TCD)	LA-ICP-MS (UoB)	References datasets published		Extension of published datasets by the given type of data
OH-DP-0009*	pt-tp-p	1.47 ± 0.04	yes	no	yes	no	no	²⁰		EPMA-WDS
OH-DP-0015*	tra-btra	3.29 ± 0.08	yes	no	yes	no	no	²⁰		EPMA-WDS
OH-DP-0016.9*	btra-tp-tra-p-tr, r	3.97 ± 0.12	yes	no	yes	no	no	this study
OH-DP-0027*	p	8.56 ± 0.2	no	yes	no	no	no	²³	²⁰	no
OH-DP-0049*	tr	14.57 ± 0.85	yes	no	yes	no	no	²⁰		EPMA-WDS
OH-DP-0052*	tr	15.54 ± 0.99	yes	no	no	no	no	this study
OH-DP-0115	tr-p	29.03 ± 0.77	no	yes	no	no	no	²³		no
OH-DP-0169	tr-p	40.27 ± 0.34	no	yes	no	no	no	²³		no
OH-DP-0404	p-tr-tra-tp	102.11 ± 3.09	no	yes	no	no	no	²³		no
OH-DP-0435	tr-p	109.45 ± 1.82	no	yes	no	no	no	²³		no
OH-DP-0499	tr-r	133.66 ± 2.89	no	yes	no	no	no	²³		no
OH-DP-0505	tr-r	135.36 ± 4.06	yes	yes	yes	yes	no	³⁰		EMPA-WDS + SEM-EDS
OH-DP-0599	p	156.89 ± 3.79	yes	no	yes	no	no	³⁰		EMPA-WDS + SEM-EDS
OH-DP-0616	p-tr	158.76 ± 3.83	no	yes	no	no	no	³⁰		SEM-EDS
OH-DP-0617	p	158.89 ± 3.81	no	yes	no	no	no	³⁰		SEM-EDS
OH-DP-0624	pt-p	159.71 ± 4.03	no	yes	no	yes	no	²³	¹⁴	no
OH-DP-0710	tp-lat	172.26 ± 5.55	yes	no	yes	no	no	³⁰		EMPA-WDS + SEM-EDS
OH-DP-0725*	tr-p + r	174.44 ± 5.22	yes	no	no	no	no	this study
OH-DP-0766	tr-r	180.02 ± 4.14	yes	no	yes	yes	no	³⁰		SEM-EDS
OH-DP-0997	p-tr	228.87 ± 5.66	yes	no	yes	yes	no	³⁰		SEM-EDS
OH-DP-1006	p-tr	230.93 ± 6.27	yes	no	yes	yes	no	³⁰		EMPA-WDS + SEM-EDS
OH-DP-1053.5	p-tr	240.93 ± 6.45	yes	no	yes	no	no	³⁰		SEM-EDS
OH-DP-1053.8	p-tr	240.99 ± 6.41	yes	no	yes	no	no	³⁰		EMPA-WDS + SEM-EDS
OH-DP-1055	p-tr	241.23 ± 6.18	yes	no	yes	yes	no	³⁰		EMPA-WDS + SEM-EDS
OH-DP-1175	p-tr	270.64 ± 4.88	yes	no	yes	yes	no	³⁰		SEM-EDS
OH-DP-1513	r	353.43 ± 7.49	yes	no	yes	yes	no	³⁰		SEM-EDS
OH-DP-1520	d-r	355.76 ± 7.64	yes	no	yes	yes	no	³⁰		SEM-EDS
OH-DP-1527	p-tr	358.25 ± 4.64	yes	yes	yes	yes	no	³⁰		EMPA-WDS + SEM-EDS
OH-DP-1640	p-tr	398.37 ± 5.95	yes	no	yes	yes	no	³⁰		EMPA-WDS + SEM-EDS
OH-DP-1700.6*	r	414.75 ± 3.17	yes	yes	yes	no	no	²²		EMPA-WDS + SEM-EDS
OH-DP-1710*	tr-p	417.13 ± 4.20	no	no	yes	no	no	this study
OH-DP-1719.8*	p	419.76 ± 5.41	no	no	yes	no	no	this study
OH-DP-1733	tr	423.93 ± 6.43	yes	yes	yes	no	no	³⁰	⁶¹	SEM-EDS
OH-DP-1812	tra-p-tr	453.95 ± 2.94	yes	no	yes	yes	no	³⁰		SEM-EDS
OH-DP-1817	f	456.19 ± 3.3	yes	yes	no	no	no	²³		SEM-EDS
OH-DP-1911	p	480.49 ± 6.84	yes	no	yes	yes	no	³⁰		SEM-EDS
OH-DP-1955	p-tra-pt	490.67 ± 3.92	yes	yes	no	no	no	²³		SEM-EDS
OH-DP-1966	tra-p- tr	494.05 ± 4.43	yes	no	yes	yes	no	³⁰		SEM-EDS
OH-DP-1998	p	508.67 ± 4.14	yes	no	yes	yes	no	³⁰		SEM-EDS
OH-DP-2010	tp-p	514.17 ± 4.37	yes	yes	no	no	no	²³		SEM-EDS
OH-DP-2017	tr	516.87 ± 5.47	yes	yes	no	no	no	²³		SEM-EDS
OH-DP-2060	f	530.86 ± 3.35	yes	yes	no	no	no	²³		SEM-EDS
OH-DP-2439	pt-tp-p	626.87 ± 3.98	yes	yes	yes	yes	no	³⁰		SEM-EDS
OH-DP-2512	tr	648.56 ± 6.76	yes	no	yes	no	yes	this study
OH-DP-2555	ph	662.55 ± 7.16	yes	no	yes	no	yes	this study
OH-DP-2589	tp/ph	674.23 ± 5.93	yes	no	yes	no	yes	this study
OH-DP-2603	tr	680.85 ± 4.46	yes	yes	yes	no	yes	this study
OH-DP-2669	tr	716.74 ± 4.78	yes	yes	yes	no	yes	²		EMPA-WDS + SEM-EDS + LA-ICP-MS
OH-DP-2717	tp/ph	734.42 ± 5.86	yes	yes	yes	no	yes	this study
OH-DP-2869	ph/tr	776.51 ± 5.14	yes	no	yes	no	yes	this study
OH-DP-2898	tr/ph	789.67 ± 3.45	yes	yes	yes	no	yes	²		EMPA-WDS + SEM-EDS + LA-ICP-MS
OH-DP-3144	tr	888.18 ± 5.28	yes	no	yes	no	yes	this study
OH-DP-3443	ph	979.33 ± 6.19	yes	no	yes	no	yes	this study
OH-DP-3860	r	1113.68 ± 7.36	yes	no	yes	no	yes	this study
OH-DP-3914	tr	1132.58 ± 4.27	yes	no	yes	no	yes	this study
OH-DP-4089	tr	1206.9 ± 4.55	yes	no	yes	no	yes	this study
OH-DP-4124	r	1221.58 ± 6.49	yes	no	yes	no	yes	this study

Overview of tephra layers found in the DEEP site sediment succession providing information about the general glass geochemical composition according to the Total alkali vs. silica classification by Le Bas, et al.³⁹, the corresponding age according to the age-depth model² and the respective geochemical analyses performed at the different laboratories. Tephra layers described for the first time are marked by “this study”. If data of tephra layers was published elsewhere, the respective reference is given and it is indicated if published datasets were extended by additional SEM-EDS and/or EPMA-WDS data in this study. For tephra layers OH-DP-2669 and OH-DP-2898 trace element concentrations published in Wagner, et al.² were recalculated using the same data reduction process as for the other samples measured at the University of Bonn⁴⁵. d = dacite; tra = trachyandesite; tp = tephriphonolite; pt = phonotephrite; lat = latite; f = foidite; btra = basaltic trachyandesite; p = phonolite; tr = trachyte; r = rhyolite.