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Records

Helluvaðstjörn

z_type: depth
site: Helluvaðstjörn
country: Iceland
latitude: 65.583297729492
longitude: -17.166799545288
record: Helluvaðstjörn
site_type: Terrestrial

Data series

QUEST534/32_Majors

series: QUEST534/32_Majors
series_type: Tephra_Sample_Majors
z: 0.175
z_range: 0.01
sample: QUEST534/32
context: Veidivotn AD1717
tephra_type: mid-distal
tephra_deposit: fall
material: ash
collected_by: quest
volc_region: EVZ
volcano: Veidivotn
eruption: Veidivotn AD1717

	labcode	batch	instrument	SiO2	TiO2	Al2O3	FeOt	MnO	MgO	CaO	Na2O	K2O	P2O5	Cl	F	total	ok
	QUEST534/32/01	QUEST-37	QUEST-WDS	49.84	1.99	13.85	11.88	0.2	5.99	10.22	2.62	0.27	0	0	0	97.11	1
	QUEST534/32/02	QUEST-37	QUEST-WDS	49.8	1.78	13.74	11.52	0.2	6.74	11.34	2.6	0.16	0	0	0	98.08	1
	QUEST534/32/03	QUEST-37	QUEST-WDS	49.72	1.77	13.67	11.55	0.23	6.97	11.53	2.44	0.19	0	0	0	98.24	1
	QUEST534/32/04	QUEST-37	QUEST-WDS	49.4	1.8	13.67	11.76	0.19	6.69	11.24	2.49	0.14	0	0	0	97.6	1
	QUEST534/32/05	QUEST-37	QUEST-WDS	49.25	1.79	13.65	11.47	0.26	6.83	11.32	2.41	0.17	0	0	0	97.34	1

QUEST534/37_Majors

series: QUEST534/37_Majors
series_type: Tephra_Sample_Majors
z: 0.345
z_range: 0.03
sample: QUEST534/37
context: Veidivotn AD1477
tephra_type: mid-distal
tephra_deposit: fall
material: ash
collected_by: quest
volc_region: EVZ
volcano: Torfajökull
eruption: Torfajökull AD1477

	labcode	batch	instrument	SiO2	TiO2	Al2O3	FeOt	MnO	MgO	CaO	Na2O	K2O	P2O5	Cl	F	total	ok
	QUEST534/37/01	QUEST-37	QUEST-WDS	49.58	1.82	13.49	12.23	0.19	6.82	11.39	2.5	0.19	0	0	0	98.36	1
	QUEST534/37/02	QUEST-37	QUEST-WDS	49.37	1.86	13.33	12.19	0.18	6.68	11.41	2.63	0.19	0	0	0	97.98	1
	QUEST534/37/03	QUEST-37	QUEST-WDS	49.15	1.87	13.61	12.39	0.18	6.69	11.15	2.41	0.22	0	0	0	97.83	1
	QUEST534/37/04	QUEST-37	QUEST-WDS	48.71	1.86	13.56	12.18	0.17	6.47	11.03	2.39	0.19	0	0	0	96.69	1

QUEST534/42_Majors

series: QUEST534/42_Majors
series_type: Tephra_Sample_Majors
z: 1.2025
z_range: 0.005
sample: QUEST534/42
context: H3 Hekla
tephra_type: mid-distal
tephra_deposit: fall
material: ash
collected_by: quest
volc_region: EVZ
volcano: Hekla
eruption: H3 Hekla

	labcode	batch	instrument	SiO2	TiO2	Al2O3	FeOt	MnO	MgO	CaO	Na2O	K2O	P2O5	Cl	F	total	ok
	QUEST534/42/01	QUEST-37	QUEST-WDS	70.63	0.19	13.93	2.95	0.12	0.13	1.91	4.45	2.56	0.04	0	0	96.9	1
	QUEST534/42/02	QUEST-37	QUEST-WDS	70.47	0.2	13.86	3.1	0.09	0.14	1.96	4.34	2.54	0.06	0	0	96.76	1
	QUEST534/42/03	QUEST-37	QUEST-WDS	70.35	0.22	14	2.91	0.12	0.13	1.93	4.46	2.56	0.02	0	0	96.68	1
	QUEST534/42/04	QUEST-37	QUEST-WDS	70.06	0.21	13.76	3.08	0.11	0.13	1.91	4.97	2.64	0.02	0	0	96.89	1
	QUEST534/42/05	QUEST-37	QUEST-WDS	69.76	0.18	13.49	2.97	0.14	0.13	1.94	4.5	2.54	0.02	0	0	95.65	1
	QUEST534/42/06	QUEST-37	QUEST-WDS	69.57	0.21	13.6	3.01	0.15	0.16	2.01	5.08	2.37	0.01	0	0	96.15	1
	QUEST534/42/07	QUEST-37	QUEST-WDS	69.45	0.18	13.86	2.85	0.16	0.14	2.01	4.77	2.39	0.04	0	0	95.85	1
	QUEST534/42/08	QUEST-37	QUEST-WDS	68.84	0.19	13.8	2.87	0.11	0.1	1.89	4.84	2.38	0.02	0	0	95.05	1
	QUEST534/42/09	QUEST-37	QUEST-WDS	68.61	0.26	14.07	3.5	0.18	0.13	2.3	4.61	2.33	0.03	0	0	96.02	1
	QUEST534/42/10	QUEST-37	QUEST-WDS	65.6	0.35	14.39	4.83	0.2	0.3	3.05	4.84	2.08	0.07	0	0	95.7	1
	QUEST534/42/11	QUEST-37	QUEST-WDS	64.87	0.46	14.85	5.92	0.2	0.51	3.35	4.3	1.84	0.13	0	0	96.43	1

Tephra_Samples

series: Tephra_Samples
series_type: Tephra_Samples

	z	z_range	sample	t	t_sigma	context	sector	tephra_type	tephra_deposit	material	tephra_shards	tephra_shards_abs	volc_region	volcano	eruption	notes
	0.345	0.03	QUEST534/37	1477.5	1	Veidivotn AD1477		mid-distal	fall	ash	9999	0	EVZ	Torfajökull	Torfajökull AD1477
	0.175	0.01	QUEST534/32	1717.5	1	Veidivotn AD1717		mid-distal	fall	ash	9999	0	EVZ	Veidivotn	Veidivotn AD1717
	1.2025	0.005	QUEST534/42	-1054.5	157	H3 Hekla		mid-distal	fall	ash	9999	0	EVZ	Hekla	H3 Hekla
	0.8975	0.045	QUEST534/73	871.5	1	Landnam		mid-distal	fall	ash	9999	0	EVZ	Torfajökull	Landnam (silicic)

Tephras

series: Tephras
series_type: Tephras

	z	z_range	t	t_sigma	sample	volc_region	volcano	eruption	ref
	0.175	0.01	1717.5	1	QUEST534/32	EVZ	Veidivotn	Veidivotn AD1717	doi:10.1111/j.1502-3885.2007.tb01176.x
	0.345	0.03	1477.5	1	QUEST534/37	EVZ	Torfajökull	Torfajökull AD1477	doi:10.1111/j.1502-3885.2007.tb01176.x
	1.2025	0.005	-1054.5	157	QUEST534/42	EVZ	Hekla	H3 Hekla	doi:10.1111/j.1502-3885.2007.tb01176.x
	0.8975	0.045	871.5	1	QUEST534/73	EVZ	Torfajökull	Landnam (silicic)

data_url: https://intchron.org/public.php?record=reset/Helluvaðstjörn

Veidivotn

record_comment: East volcanic zone (EVZ), terminology after Thordarson & Larsen (2007)
site: Veidivotn
country: Iceland
region: EVZ
latitude: 64.116996765137
longitude: -18.799999237061
record: Veidivotn
site_type: Volcano

Data series

Eruptions

series: Eruptions
series_type: Volc_Eruptions

	eruption	eruption_type	t	t_sigma	t_source	ref	notes
	Veidivotn AD1717	Sub-Plinian	1717.5	1	Calendar	doi:10.1111/j.1502-3885.2007.tb01176.x	AD 1717 historical
	SvV	Sub-Plinian	-659.5	300		doi:10.1016/s0921-8181(99)00011-9	c. 2500 14C yr BP at Svinavatn, N Iceland (Boygle 1999)
	FMAZ I-THOL	Plinian	-16649.5	500	Marine04	doi:10.1016/j.quascirev.2006.03.001	tholeiitic ash layer dated to c. 15,400 14C yr BP in Wastegard et al. (2006). Thought to be equivalent to 15.4 ka BAS-1 of Haflidarson et al. (2000).
	NGRIP 1595.1m	Sub-Plinian	-12499.5	1	GICC05	doi:10.1002/jqs.908	cf. 15.4 ka-BAS-1 tephra based on major element chemistry but SS09 age of 14428-14431 ice core years makes such a correlation highly unlikely. The depth suggests a GICC05 age of 14500 ± 180 b2k.
	I-THOL-1 (Tv-3)	Sub-Plinian	-9064.5	225		doi:10.1111/j.1502-3885.1992.tb00009.x	One of components of NAAZ I with age of ~10.4 ka 14C yr BP (Kvamme et al. 1989). Could be equivalent of Tv-3 in lake Torfadalsvatn with age of ~9.7 ka 14C yr BP (Bjorck et al., 1992).
	Sandoy B	Plinian	-9279.5	42	IntCal09	doi:10.1016/j.quaint.2011.05.014	14C modeled age of 11,288-11,205 yr cal BP (Lind & Wastegard 2011)
	Sandoy A	Plinian	-9379.5	42	IntCal09	doi:10.1016/j.quaint.2011.05.014	14C modeled age of 11,388-11,305 yr cal BP
	Landnam (basaltic)	Sub-Plinian	871.5	1	GICC05	doi:10.1016/0012-821x(95)00145-3	c. AD 871 ± 2 (GRIP). The Landnám tephra layer is characterised by two distinct tephra components: a lower rhyolitic tephra layer which is overlain by a basaltic tephra layer. Both of these were deposited following the ~AD 871 Vatnaöldur eruption which saw simultaneous eruptions of the basaltic Veidivötn-Bárðarbunga volcanic system and the silicic Torfajökull complex.

data_url: https://intchron.org/public.php?record=reset/Veidivotn

Publications

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bibtex

Björck, S., Ingólfsson, Ó., Haflidason, H., Hallsdöttir, M. and Anderson, J.N. (1992) Lake Torfadalsvatn: a high resolution record of the North Atlantic ash zone I and the last glacial-interglacial environmental changes in Iceland. Boreas, 21(1), pp.15-22. doi:10.1111/j.1502-3885.1992.tb00009.x data publication
Boygle and Jane (1999) Variability of tephra in lake and catchment sediments, Svínavatn, Iceland. Global and Planetary Change, 21(1-3), pp.129-149. doi:10.1016/s0921-8181(99)00011-9 data publication
Grönvold, K., Óskarsson, N., Johnsen, S.J., Clausen, H.B., Hammer, C.U., Bond, G. and Bard, E. (1995) Ash layers from Iceland in the Greenland GRIP ice core correlated with oceanic and land sediments. Earth and Planetary Science Letters, 135(1-4), pp.149-155. doi:10.1016/0012-821x(95)00145-3 data publication
Lawson, I.T., Gathorne-Hardy, F.J., Church, M.J., Newton, A.J., Edwards, K.J., Dugmore, A.J. and Einarsson, Á. (2007) Environmental impacts of the Norse settlement: Palaeoenvironmental data from Mývatnssveit, northern Iceland. Boreas, 36(1), pp.1-19. doi:10.1111/j.1502-3885.2007.tb01176.x data publication
Lind, E.M. and Wastegard, S. (2011) Tephra horizons contemporary with short early Holocene climate fluctuations: New results from the Faroe Islands. Quaternary International, 246(1-2), pp.157-167. doi:10.1016/j.quaint.2011.05.014 data publication
Mortensen, A.K., Bigler, M., Grönvold, K., Steffensen, J.P. and Johnsen, S.J. (2005) Volcanic ash layers from the Last Glacial Termination in the NGRIP ice core. Journal of Quaternary Science, 20(3), pp.209-219. doi:10.1002/jqs.908 data publication
Thordarson, Thor and Larsen, G. (2007) Volcanism in Iceland in historical time: Volcano types, eruption styles and eruptive history. Journal of Geodynamics, 43(1), pp.118-152. doi:10.1016/j.jog.2006.09.005 data publication
Wastegard, S., Rasmussen, T.L., Kuijpers, A., Nielsen, T. and van Weering, T.C.E. (2006) Composition and origin of ash zones from Marine Isotope Stages 3 and 2 in the North Atlantic. Quaternary Science Reviews, 25(17-18), pp.2409-2419. doi:10.1016/j.quascirev.2006.03.001 data publication

Compilation

by: IntChron
url: https://intchron.org
updated: 2025-11-18T18:56:53+00:00
retrieved: 2025-11-18T18:56:53+00:00

schema: https://intchron.org/schema
data_url: https://intchron.org/public.php?ref=doi:10.1111/j.1502-3885.2007.tb01176.x

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