IntChron

Records

Hekla

record_comment: East volcanic zone (EVZ), terminology after Thordarson & Larsen (2007)
site: Hekla
country: Iceland
region: EVZ
latitude: 63.979999542236
longitude: -19.700000762939
record: Hekla
site_type: Volcano

Data series

Eruptions

series: Eruptions
series_type: Volc_Eruptions

eruption	eruption_type	t	t_sigma	t_source	ref	notes
Hekla AD1947	Plinian	1947.5	1	Calendar	doi:10.1191/095968399669624108	AD 1947 historical
Hekla AD1845	Plinian	1845.5	1	Calendar	doi:10.1191/095968399669624108	AD 1845 historical
Hekla AD1510	Plinian	1510.5	1	Calendar	doi:10.1191/095968399669624108	AD 1510 historical
Hekla AD1300	Plinian	1300.5	1	Calendar	doi:10.1191/095968399669624108	AD 1300 historical
Hekla AD1158	Plinian	1158.5	1	Calendar	doi:10.1191/095968399669624108	AD 1158 historical
Hekla AD1104	Ultra-Plinian	1104.5	1	Calendar	doi:10.1191/095968399669624108	AD 1104 historical (see Larsen and Thorarinsson 1977; Larsen et al. 1999)
MOR-T6	Plinian	840.5	100		doi:10.1191/0959683604hl749rp	c. AD 840 interpolated (Chambers et al. 2004)
Tjornuvik AD800 A	Plinian	800.5	50		doi:10.1191/095968301668079904	ninth century AD age suggested by Wastegard et al. (2001).
BMR-190	Plinian	-643.5	60	IntCal04	doi:10.1191/0959683604hl757rr	c. 705-585 cal BC (Plunkett et al. 2004).
H3 Hekla	Ultra-Plinian	-1054.5	157	IntCal09		c. 2820 ± 70 14C yr BP, i.e. 3156-2772 yr cal BP (2 sigma; Larsen and Thorarinsson 1977)
KAL-X	Plinian	-1769.5	15	IntCal04	doi:10.1177/0959683608089208	c. 3735-3705 cal BP wiggle-match. Proximal equivalent of Hekla Selsund, Hekla HS and Kebister distal tephras (Wastegard et al. 2008)
Hekla Selsund	Plinian	-1769.5	15	IntCal04	doi:10.1177/0959683608089208	c. 3735-3705 cal BP wiggle-match. Distal equivalent of Hekla KAL-X proximal tephra (Wastegard et al. 2008).
Kebister	Plinian	-1769.5	15	IntCal04	doi:10.1177/0959683608089208	c. 3735-3705 cal BP wiggle-match. Distal equivalent of Hekla KAL-X proximal tephra (Wastegard et al. 2008).
Hekla HS	Plinian	-1769.5	15	IntCal04	doi:10.1177/0959683608089208	c. 3735-3705 cal BP wiggle-match. Distal equivalent of Hekla KAL-X proximal tephra (Wastegard et al. 2008).
H4 Hekla	Ultra-Plinian	-2309.5	20		doi:10.1177/095968369500500111	c. 2310 ± 20 calBC wiggle-match at Sluggan
Lairg A	Plinian	-4952.5	47		doi:10.1191/0959683602hl538rr	c. 4997-4902 cal BC 14C wiggle-match (Pilcher et al. 1996; Hall & Pilcher 2002).
H5 Hekla	Ultra-Plinian	-5101.5	105	IntCal09	ref:vilmundardottir1982hss	c. 6185 ± 100 or 6070 ± 120 14C yr BP (respectively Thórarinsson 1971 and Vilmundardóttir & Kaldal 1982). Weighted mean age gives 7247-6800 yr cal BP (2 sigma).

Hekla AD1104_Distribution

series: Hekla AD1104_Distribution
series_type: Tephra_Distribution
eruption: Hekla AD1104

site	country	longitude	latitude	elevation	site_type	sample	tephra_type	tephra_deposit	material	z_range	collected	collected_by	notes
Ballysculllian East	UK	-6.462999821	54.79750061	44	Terrestrial	QUEST621/38	distal	fall	ash			quest
Derrycunihy Wood	Ireland	-9.416669846	52.01670074		Terrestrial	QUEST580/38	distal	fall	ash			quest

H4 Hekla_Distribution

series: H4 Hekla_Distribution
series_type: Tephra_Distribution
eruption: H4 Hekla

site	country	longitude	latitude	elevation	site_type	sample	tephra_type	tephra_deposit	material	z_range	collected	collected_by	notes
Bødalsvatnett	Norway	13.56200027	68.1969986	42	Terrestrial	QUEST634/47	distal	fall	ash			quest
Corlea Bog west Corlea I	Ireland	-7.866670132	53.59999847		Terrestrial	QUEST578/47	distal	fall	ash			quest
Croaghaun East	Ireland	-9.455030441	54.19200134		Terrestrial	QUEST581/47	distal	fall	ash			quest
Red Bog	Ireland	-8.533280373	52.51639938		Terrestrial	QUEST582/47	distal	fall	ash			quest
Toome	UK	-6.461790085	54.75170135		Terrestrial	QUEST632/47	distal	fall	ash			quest

Hekla AD1510_Distribution

series: Hekla AD1510_Distribution
series_type: Tephra_Distribution
eruption: Hekla AD1510

	site	country	longitude	latitude	elevation	site_type	sample	tephra_type	tephra_deposit	material	z_range	collected	collected_by	notes
	Derrycunihy Wood	Ireland	-9.416669846	52.01670074		Terrestrial	QUEST580/35	distal	fall	ash			quest

Lairg A_Distribution

series: Lairg A_Distribution
series_type: Tephra_Distribution
eruption: Lairg A

	site	country	longitude	latitude	elevation	site_type	sample	tephra_type	tephra_deposit	material	z_range	collected	collected_by	notes
	Toome	UK	-6.461790085	54.75170135		Terrestrial	QUEST632/48	distal	fall	ash			quest

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

Iceland_volcanoes

record_comment: Unknown source
site: Iceland volcanoes
country: Iceland
region: Iceland
record: Iceland_volcanoes
site_type: Volcano

Data series

Eruptions

series: Eruptions
series_type: Volc_Eruptions

eruption	eruption_type	t	t_sigma	t_source	ref	notes
PMG-5	Plinian	1600.5	100		doi:10.1191/0959683602hl538rr	possibly c. AD 1600 interpolated (Hall & Pilcher 2002).
BIP-24	Plinian	900.5	100		doi:10.1111/j.1502-3885.2005.tb01011.x	c. AD 900 interpolated
AD860 Layer part B	Plinian	860.5	20		doi:10.1177/095968369500500111	c. AD 860 ± 20 radiocarbon wiggle-match at Sluggan (AD lower layer, colourless tephra shards, two populations)
OMH-185 (Barnsmore)	Plinian	-716.5	38	IntCal04	doi:10.1191/0959683604hl757rr	c. 755-680 cal BC (Plunkett et al. 2004). According to Hall and Pilcher (2002) this is probably equivalent to the DOM-6 'microlite' tephra in Germany.
Derrycunihy Wood SH-1	Plinian
FMAZ II (Fugloyarbanki)	Plinian	-24739.5	1	GICC05	doi:10.1002/jqs.1182	26740 ± 390 yr b2k in NGRIP 1848.05
Borrobol	Plinian	-12094.5	95	IntCal09	doi:10.1002/jqs.1498	Best current estimate is 14.14-13.95 cal ka BP (Bayesian age model). Replaces Turney et al. (1997) date of c.14.4 cal ka BP. Davies et al. (2004) suggestion of 2 eruptions has been revised by Matthews et al. (2011).
L3574	Plinian					No age given, reported as 'older than Saksunarvatn tephra' by Dugmore and Newton (1997). Turney et al. (2006) suggests an age of c. 10.8 ka cal. BP.
OWB-105 AD700	Plinian	700.5	100		doi:10.1191/0959683602hl538rr	c. AD 700 interpolated (Hall & Pilcher 2002).
Penifiler Tephra	Plinian	-11929.5	200	IntCal09	doi:10.1002/jqs.1498	14.08-13.68 cal ka BP (Bayesian age model)
Sluggan A	Plinian	-12549.5	500		doi:10.1002/jqs.990	c. 14500 cal BP suggested by Turney et al. (2006)
Sluggan B	Plinian	-10849.5	500		doi:10.1002/jqs.990	c. 12800 cal BP suggested by Turney et al. (2006)
AD860 Layer part A	Plinian	860.5	20		doi:10.1177/095968369500500111	c. AD 860 ± 20 radiocarbon wiggle-match at Sluggan (AD lower layer, colourless tephra shards, two populations)
BMR-90 AD920	Plinian	920.5	100		doi:10.1191/0959683602hl538rr	c. AD 920 interpolated (Hall & Pilcher 2002)
Breakish Tephra	Plinian				doi:10.1002/jqs.1066	no date suggested although position above the Ashik tephra and Saksunarvatn indicates an age in the early-mid Holocene.
DOM-6 'microlite' tephra	Plinian	-696.5	35		doi:10.1006/qres.2002.2325	c. 730-664 cal BC radiocarbon (van den Bogaard et al. 2002). According to Hall & Pilcher (2002) this is probably equivalent to the OMH-185 (Barnsmore) tephra.
GB4-182	Plinian	-1349.5	200		doi:10.1191/0959683602hl538rr	c. 1350 cal BC interpolated (Hall & Pilcher 2002)
GB4-50 AD1250	Plinian	1250.5	100		doi:10.1191/0959683602hl538rr	c. AD 1250 interpolated (Hall & Pilcher 2002)
Harthorpe Moss tephra	Plinian				doi:10.1177/095968369600600112
Lough Portain B	Plinian		0		doi:10.1177/095968369500500301	sub-population of Hekla AD 1510 eruption (Lough Portain A). Status is unclear, not a distinct isochrone
MOR-T4	Plinian	1000.5	100		doi:10.1191/0959683604hl749rp	c. cal AD 1000 interpolated (Chambers et al. 2004)
Roddans Port A	Plinian				doi:10.1002/jqs.990	two sub-populations (A & B) at 63-64 cm depth, dating unclear, pre-Vedde Ash.
Roddans Port B	Plinian				doi:10.1002/jqs.990	two sub-populations (A & B) at 63-64 cm depth, dating unclear, pre-Vedde Ash.
SLU-5	Plinian	1650.5	50		doi:10.1191/0959683602hl538rr	c. AD 1600-1700 interpolated (Hall & Pilcher 2002)
Stomyren tephra	Plinian	-149.5	100		doi:10.1016/j.quaint.2004.04.030	c. 2100 cal yr BP interpolated (Wastegard 2005)
Vallensgard Mose tephra	Plinian				doi:10.1002/jqs.990	Stratigraphic position is similar to Vedde Ash, in the middle of the Younger Dryas, but geochemistry is different. Unclear if this is a significant tephra horizon.
NAAZ I	Plinian	-10449.5	500	Marine04	doi:10.1016/j.quascirev.2006.03.001	Diffuse layer representing c. 11 ka 14C yr GS-1 ash zone containing components from I-Thol-2 (Grímsvötn), I-Rhy.1 (Katla) and I-Thol-1 (Veidivötn). It is commonly believed that the biggest contributor is the rhyolitic component of the Vedde Ash.
L-274	Plinian	-8274.5	100	IntCal09	doi:10.1016/j.quaint.2011.05.014	14C modeled age of 10,325-10,125 yr cal BP (Lind & Wastegard 2011).
5d-BAS	Plinian	-109549.5	5000	Orbital	doi:10.1016/s0277-3791(98)00038-9	Probably represents an eruption complex. Several geochemical populations: BAS-I, BAS-II, BAS-III.
5e-Midt	Plinian	-123049.5	5000	Orbital	doi:10.1016/s0277-3791(98)00038-9	Probably represents an eruption complex. Several geochemical populations: RHY, INT, BAS & TAB (the 5e-Midt/TRACHY is believed to be from Jan Mayen). Wallrabe-Adams & Lackschewitz (2002) suggest either Vatnafjoll or Vestmannaeyjar may be the source.
5e-Low	Plinian	-127549.5	5000	Orbital	doi:10.1016/s0277-3791(98)00038-9	Probably represents an eruption complex. Several geochemical populations. Wallrabe-Adams & Lackschewitz (2002) suggest either Vatnafjoll or Vestmannaeyjar may be the source.
St. 5a-THOL-1	Plinian	-74549.5	5000	Orbital	doi:10.1016/0012-821x(95)00145-3	THOL geochemical composition
St. 7-RHY-I & II	Plinian	-208049.5	20000	Orbital	doi:10.1002/jqs.3390060205	RHY-I & RHY-II geochemical compositions
St. 7-BAS/INT-I	Plinian	-208549.5	20000	Orbital	doi:10.1002/jqs.3390060205	INT-I & INT/BAS-I geochemical compositions
St. 9-RHY-I	Plinian	-328049.5	30000	Orbital	doi:10.1002/jqs.3390060205	RHY geochemical composition; possible equivalent to NAAZ III (III-RHY-I, c.320 ka)
St. 9-BAS-I	Plinian	-328049.5	30000	Orbital	doi:10.1002/jqs.3390060205	BAS geochemcial composition

AD860 Layer part B_Distribution

series: AD860 Layer part B_Distribution
series_type: Tephra_Distribution
eruption: AD860 Layer part B

site	country	longitude	latitude	elevation	site_type	sample	tephra_type	tephra_deposit	material	z_range	collected	collected_by	notes
Ballysculllian East	UK	-6.462999821	54.79750061	44	Terrestrial	QUEST621/111	distal	fall	ash			quest
Borg Indrepollen	Norway	13.49400043	68.14499664		Terrestrial	QUEST636/111	distal	fall	ash			quest

BIP-24_Distribution

series: BIP-24_Distribution
series_type: Tephra_Distribution
eruption: BIP-24

	site	country	longitude	latitude	elevation	site_type	sample	tephra_type	tephra_deposit	material	z_range	collected	collected_by	notes
	Borg Indrepollen	Norway	13.49400043	68.14499664		Terrestrial	QUEST636/110	distal	fall	ash			quest

Derrycunihy Wood SH-1_Distribution

series: Derrycunihy Wood SH-1_Distribution
series_type: Tephra_Distribution
eruption: Derrycunihy Wood SH-1

	site	country	longitude	latitude	elevation	site_type	sample	tephra_type	tephra_deposit	material	z_range	collected	collected_by	notes
	Derrycunihy Wood	Ireland	-9.416669846	52.01670074		Terrestrial	QUEST580/113	distal	fall	ash			quest

NAAZ I_Distribution

series: NAAZ I_Distribution
series_type: Tephra_Distribution
eruption: NAAZ I

	site	country	longitude	latitude	elevation	site_type	sample	tephra_type	tephra_deposit	material	z_range	collected	collected_by	notes
	K708-1		-23.75	50	-4053	Marine	QUEST709/3	distal	fall	ash			quest

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

Sluggan

z_type: depth
record_comment: Peat bog
site: Sluggan
country: UK
region: Northern Ireland
latitude: 54.766998291016
longitude: -6.2919998168945
elevation: 50
record: Sluggan
site_type: Terrestrial

Data series

QUEST631/35_Majors

series: QUEST631/35_Majors
series_type: Tephra_Sample_Majors
z: 0.06
z_range: 0.02
sample: QUEST631/35
context: SLU-5
sector: monolith 8
tephra_type: distal
tephra_deposit: fall
material: ash
collected_by: quest
volc_region: Iceland
volcano: Iceland_volcanoes

labcode	batch	instrument	SiO2	TiO2	Al2O3	FeOt	MnO	MgO	CaO	Na2O	K2O	P2O5	Cl	F	total	ok
QUEST631/35/01	QUEST-02	QUEST-WDS	73.83	0.28	14.62	1.48	0	0.43	1.98	2.6	3.42	0	0	0	98.64	1
QUEST631/35/02	QUEST-02	QUEST-WDS	72.58	0.28	14.65	1.5	0	0.4	1.95	4.27	3.16	0	0	0	98.81	1
QUEST631/35/03	QUEST-02	QUEST-WDS	72.52	0	14.52	1.58	0	0.41	1.85	4.22	3.17	0	0	0	98.54	1
QUEST631/35/04	QUEST-02	QUEST-WDS	71.81	0.28	14.24	1.55	0	0.41	1.98	3.1	3.53	0	0	0	96.9	1
QUEST631/35/05	QUEST-02	QUEST-WDS	70.66	0.22	13.94	1.48	0	0.41	1.88	4.38	3.11	0	0	0	96.08	1
QUEST631/35/06	QUEST-02	QUEST-WDS	70.64	0.28	14.14	1.44	0	0.44	1.83	3.98	3.19	0	0	0	95.92	1
QUEST631/35/07	QUEST-02	QUEST-WDS	70.51	0.22	13.89	1.45	0	0.38	1.8	4.37	3.09	0	0	0	95.71	1

QUEST631/100_Majors

series: QUEST631/100_Majors
series_type: Tephra_Sample_Majors
z: 1.35
z_range: 0.02
sample: QUEST631/100
context: Lairg B / Torfajokull 4700 BC
sector: monolith 10
tephra_type: distal
tephra_deposit: fall
material: ash
collected_by: quest
volc_region: EVZ
volcano: Torfajökull
eruption: Lairg B / Torfajökull 4700 BC
notes: QUB-141

labcode	batch	instrument	SiO2	TiO2	Al2O3	FeOt	MnO	MgO	CaO	Na2O	K2O	P2O5	Cl	F	total	ok
QUEST631/100/01	QUEST-03	QUEST-WDS	71.77	0.23	14.65	2.19	0	0.13	0.68	5.49	4.62	0	0	0	99.75	1
QUEST631/100/02	QUEST-03	QUEST-WDS	71.72	0.25	14.65	2.17	0	0.16	0.68	5.16	5.18	0	0	0	99.98	1
QUEST631/100/03	QUEST-03	QUEST-WDS	71.41	0.24	15.1	2.24	0	0.16	0.69	5.42	4.69	0	0	0	99.95	1
QUEST631/100/04	QUEST-03	QUEST-WDS	71.2	0.22	14.61	2.36	0	0.14	0.68	5.56	4.62	0	0	0	99.39	1
QUEST631/100/05	QUEST-03	QUEST-WDS	70.88	0.27	14.51	2.23	0	0.15	0.67	5.5	4.74	0	0	0	98.94	1
QUEST631/100/06	QUEST-03	QUEST-WDS	70.76	0.24	14.6	2.23	0	0.15	0.7	5.66	4.36	0	0	0	98.69	1
QUEST631/100/07	QUEST-03	QUEST-WDS	70.69	0.23	14.56	2.2	0	0.15	0.67	5.44	4.49	0	0	0	98.41	1
QUEST631/100/08	QUEST-03	QUEST-WDS	70.42	0.23	14.62	2.23	0	0.17	0.67	5.17	4.43	0	0	0	97.93	1
QUEST631/100/09	QUEST-03	QUEST-WDS	70.36	0.22	14.5	2.2	0	0.15	0.67	5.31	4.66	0	0	0	98.08	1
QUEST631/100/10	QUEST-03	QUEST-WDS	70.32	0.28	14.42	2.21	0	0.16	0.71	5.43	4.36	0	0	0	97.9	1
QUEST631/100/11	QUEST-03	QUEST-WDS	70.28	0.28	15.14	2.55	0	0.21	0.97	5.31	4.47	0	0	0	99.2	1
QUEST631/100/12	QUEST-03	QUEST-WDS	70.12	0.23	14.39	2.23	0	0.18	0.62	5.36	4.7	0	0	0	97.82	1
QUEST631/100/13	QUEST-03	QUEST-WDS	69.98	0.24	14.74	2.34	0	0.2	0.74	5.5	4.59	0	0	0	98.32	1
QUEST631/100/14	QUEST-03	QUEST-WDS	69.92	0.25	14.19	2.09	0	0.14	0.71	4.64	5.28	0	0	0	97.21	1
QUEST631/100/15	QUEST-03	QUEST-WDS	69.83	0.23	14.46	2.19	0	0.15	0.67	5.26	4.52	0	0	0	97.3	1
QUEST631/100/16	QUEST-03	QUEST-WDS	69.35	0.23	14.32	2.13	0	0.17	0.7	4.17	5.86	0	0	0	96.93	1
QUEST631/100/17	QUEST-03	QUEST-WDS	69.33	0.24	14.35	2.16	0	0.16	0.64	4.64	5.95	0	0	0	97.47	1
QUEST631/100/18	QUEST-03	QUEST-WDS	68.55	0.21	14.86	2.22	0	0.16	0.69	5.69	4.54	0	0	0	96.92	1

QUEST631/102_Majors

series: QUEST631/102_Majors
series_type: Tephra_Sample_Majors
z: 1.495
z_range: 0.01
sample: QUEST631/102
context: Lairg A (QUB-127)
sector: monolith 10
tephra_type: distal
tephra_deposit: fall
material: ash
collected_by: quest
volc_region: EVZ
volcano: Hekla
eruption: Lairg A
notes: QUB-127

labcode	batch	instrument	SiO2	TiO2	Al2O3	FeOt	MnO	MgO	CaO	Na2O	K2O	P2O5	Cl	F	total	ok
QUEST631/102/01	QUEST-03	QUEST-WDS	73.96	0.15	12.65	1.66	0	0.04	1.32	4.22	2.71	0	0	0	96.73	1
QUEST631/102/02	QUEST-03	QUEST-WDS	73.78	0.09	12.44	1.67	0	0.05	1.32	4.16	2.77	0	0	0	96.27	1
QUEST631/102/03	QUEST-03	QUEST-WDS	73.68	0.14	12.6	1.66	0	0.05	1.3	4.09	2.81	0	0	0	96.32	1
QUEST631/102/04	QUEST-03	QUEST-WDS	73.57	0.14	12.44	1.65	0	0	1.33	4.05	2.93	0	0	0	96.11	1
QUEST631/102/05	QUEST-03	QUEST-WDS	73.53	0.1	12.58	1.65	0	0.06	1.29	4.22	2.59	0	0	0	96.03	1
QUEST631/102/06	QUEST-03	QUEST-WDS	73.43	0.14	12.44	1.72	0	0.05	1.25	4.07	2.49	0	0	0	95.59	1
QUEST631/102/07	QUEST-03	QUEST-WDS	73.43	0.17	12.28	1.58	0	0	1.2	4.02	2.68	0	0	0	95.37	1
QUEST631/102/08	QUEST-03	QUEST-WDS	73.42	0.15	12.62	1.68	0	0.04	1.23	4.05	2.64	0	0	0	95.83	1
QUEST631/102/09	QUEST-03	QUEST-WDS	73.37	0.1	12.49	1.62	0	0.05	1.22	4.11	2.77	0	0	0	95.73	1
QUEST631/102/10	QUEST-03	QUEST-WDS	73.26	0.13	12.33	1.65	0	0.05	1.24	3.8	2.78	0	0	0	95.23	1
QUEST631/102/11	QUEST-03	QUEST-WDS	73.23	0.11	12.49	1.7	0	0.07	1.24	4.1	2.76	0	0	0	95.71	1
QUEST631/102/12	QUEST-03	QUEST-WDS	73.21	0.15	12.41	1.63	0	0.06	1.21	4.11	2.55	0	0	0	95.34	1
QUEST631/102/13	QUEST-03	QUEST-WDS	73.1	0.09	12.61	1.73	0	0.05	1.27	4.41	2.58	0	0	0	95.83	1
QUEST631/102/14	QUEST-03	QUEST-WDS	73.07	0.13	12.63	1.58	0	0.04	1.28	4.01	2.87	0	0	0	95.61	1
QUEST631/102/15	QUEST-03	QUEST-WDS	73	0.12	12.61	1.67	0	0.06	1.24	4.34	2.52	0	0	0	95.55	1
QUEST631/102/16	QUEST-03	QUEST-WDS	72.89	0.12	12.52	1.7	0	0.05	1.35	4.12	2.7	0	0	0	95.43	1
QUEST631/102/17	QUEST-03	QUEST-WDS	72.88	0.14	12.64	1.66	0	0.05	1.25	4.26	2.63	0	0	0	95.51	1
QUEST631/102/18	QUEST-03	QUEST-WDS	72.82	0.12	12.47	1.61	0	0	1.24	4.24	2.56	0	0	0	95.07	1
QUEST631/102/19	QUEST-03	QUEST-WDS	72.76	0.09	12.69	1.62	0	0.06	1.28	4.11	2.81	0	0	0	95.41	1
QUEST631/102/20	QUEST-03	QUEST-WDS	72.76	0.11	12.59	1.64	0	0.06	1.25	4.16	2.52	0	0	0	95.09	1
QUEST631/102/21	QUEST-03	QUEST-WDS	72.6	0.14	12.58	1.69	0	0.06	1.29	4.04	2.67	0	0	0	95.08	1

QUEST631/36_Majors

series: QUEST631/36_Majors
series_type: Tephra_Sample_Majors
z: 0.09
z_range: 0.02
sample: QUEST631/36
context: Hekla 1510
sector: monolith 8
tephra_type: distal
tephra_deposit: fall
material: ash
collected_by: quest
volc_region: EVZ
volcano: Hekla
eruption: Hekla AD1510
notes: QUB-120

labcode	batch	instrument	SiO2	TiO2	Al2O3	FeOt	MnO	MgO	CaO	Na2O	K2O	P2O5	Cl	F	total	ok
QUEST631/36/01	QUEST-03	QUEST-WDS	72.85	0.25	15.09	0.98	0	0.13	1.91	4.35	1.65	0	0	0	98.43	1
QUEST631/36/02	QUEST-03	QUEST-WDS	71.49	0.26	14.51	3.25	0	0.13	1.93	4.57	1.68	0	0	0	98.57	1
QUEST631/36/03	QUEST-03	QUEST-WDS	62.19	1.01	16.13	7.99	0	1.26	4.51	4.14	2.85	0	0	0	99.34	1
QUEST631/36/04	QUEST-03	QUEST-WDS	61.9	1.02	15.63	7.83	0	1.33	4.42	5.17	1.65	0	0	0	97.37	1
QUEST631/36/05	QUEST-03	QUEST-WDS	61.85	1.02	15.92	7.76	0	1.25	4.57	4.46	1.69	0	0	0	98.63	1
QUEST631/36/06	QUEST-03	QUEST-WDS	61.8	0.89	16.7	6.62	0	1.01	4.68	4.51	1.63	0	0	0	98.52	1
QUEST631/36/07	QUEST-03	QUEST-WDS	61.78	0.97	16.47	7.79	0	1.3	4.38	4.44	1.63	0	0	0	99.06	1
QUEST631/36/08	QUEST-03	QUEST-WDS	61.64	1.01	16.74	7.93	0	1.33	4.48	4.62	1.67	0	0	0	99.87	1
QUEST631/36/09	QUEST-03	QUEST-WDS	61.24	0.96	16.3	7.96	0	1.34	4.61	4.53	1.4	0	0	0	98.66	1
QUEST631/36/10	QUEST-03	QUEST-WDS	61.22	1.07	14.93	7.79	0	1.29	4.44	4.88	1.87	0	0	0	97.7	1
QUEST631/36/11	QUEST-03	QUEST-WDS	61.05	0.98	15.49	7.57	0	1.24	4.14	3.76	1.48	0	0	0	97.05	1
QUEST631/36/12	QUEST-03	QUEST-WDS	60.8	0.93	15.42	7.32	0	1.28	4.07	4.55	1.7	0	0	0	95.88	1
QUEST631/36/13	QUEST-03	QUEST-WDS	60.49	1.21	15.61	8.76	0	1.66	4.89	4.55	1.83	0	0	0	98.75	1
QUEST631/36/14	QUEST-03	QUEST-WDS	60.41	1.18	15.92	8.76	0	1.8	4.97	5.12	1.83	0	0	0	99.1	1
QUEST631/36/15	QUEST-03	QUEST-WDS	60.1	0.92	14.71	7.65	0	1.26	4.48	4.95	2.27	0	0	0	95.56	1
QUEST631/36/16	QUEST-03	QUEST-WDS	60.04	1.16	15.45	8.16	0	1.38	4.48	4.45	1.81	0	0	0	96.92	1
QUEST631/36/17	QUEST-03	QUEST-WDS	59.91	1.02	16.77	7.63	0	1.36	5.51	4.7	1.74	0	0	0	98.12	1
QUEST631/36/18	QUEST-03	QUEST-WDS	59.73	1.03	15.38	7.55	0	1.21	4.17	4.4	1.86	0	0	0	95.22	1
QUEST631/36/19	QUEST-03	QUEST-WDS	59.34	1.26	14.04	8.81	0	1.49	4.44	3.59	2.47	0	0	0	95.37	1

QUEST631/40_Majors

series: QUEST631/40_Majors
series_type: Tephra_Sample_Majors
z: 0.21
z_range: 0.02
sample: QUEST631/40
context: Oraefajokull 1362
sector: monolith 8
tephra_type: distal
tephra_deposit: fall
material: ash
collected_by: quest
volc_region: OVB
volcano: Oraefajokull
eruption: Oraefajokull AD1362

labcode	batch	instrument	SiO2	TiO2	Al2O3	FeOt	MnO	MgO	CaO	Na2O	K2O	P2O5	Cl	F	total	ok
QUEST631/40/01	QUEST-04	QUEST-WDS	74.87	0.31	14.34	3.21	0	0.03	0.96	4.97	3.32	0	0	0	102.02	1
QUEST631/40/02	QUEST-04	QUEST-WDS	69.96	0.54	15.72	5.91	0	0.46	2.93	4.2	2.2	0	0	0	101.9	1
QUEST631/40/03	QUEST-04	QUEST-WDS	74.56	0.31	13.37	3.18	0	0.02	1.02	5.21	3.28	0	0	0	100.94	1
QUEST631/40/04	QUEST-04	QUEST-WDS	74.57	0.31	13.69	3.28	0	0.04	0.92	4.76	3.32	0	0	0	100.89	1
QUEST631/40/05	QUEST-04	QUEST-WDS	73.38	0.31	13.52	3.41	0	0.04	0.95	5.37	3.35	0	0	0	100.33	1
QUEST631/40/06	QUEST-04	QUEST-WDS	73.41	0.32	13.54	3.43	0	0	1.01	5.2	3.33	0	0	0	100.23	1
QUEST631/40/07	QUEST-04	QUEST-WDS	73.76	0.3	13.19	3.37	0	0.01	0.99	5.36	3.24	0	0	0	100.22	1
QUEST631/40/08	QUEST-04	QUEST-WDS	73.1	0.33	13.44	3.43	0	0.02	1.06	5.08	3.31	0	0	0	99.77	1
QUEST631/40/09	QUEST-04	QUEST-WDS	73.39	0.31	13.51	3.36	0	0.05	0.95	4.78	3.3	0	0	0	99.66	1
QUEST631/40/10	QUEST-04	QUEST-WDS	73.21	0.29	13.13	3.32	0	0.01	0.99	5.27	3.29	0	0	0	99.5	1
QUEST631/40/11	QUEST-04	QUEST-WDS	73.44	0.29	12.88	3.26	0	0.04	1.01	5.1	3.28	0	0	0	99.3	1
QUEST631/40/12	QUEST-04	QUEST-WDS	72.49	0.3	13.69	3.26	0	0.06	1	5.17	3.22	0	0	0	99.19	1
QUEST631/40/13	QUEST-04	QUEST-WDS	72.73	0.33	13.1	3.34	0	0.03	1.01	5.16	3.25	0	0	0	98.93	1
QUEST631/40/14	QUEST-04	QUEST-WDS	72.25	0.31	12.73	3.3	0	0.01	1.01	5.38	3.2	0	0	0	98.18	1
QUEST631/40/15	QUEST-04	QUEST-WDS	72.55	0.29	14.09	1.55	0	0.42	1.9	4.1	3.01	0	0	0	97.9	1
QUEST631/40/16	QUEST-04	QUEST-WDS	68.54	0.25	13.91	3.45	0	0.03	1.09	5.52	3.6	0	0	0	96.39	1
QUEST631/40/17	QUEST-04	QUEST-WDS	67.81	0.26	14.04	3.35	0	0.04	1.07	5.63	3.72	0	0	0	95.92	1
QUEST631/40/18	QUEST-04	QUEST-WDS	68.24	0.27	13.68	3.21	0	0.01	0.99	5.61	3.81	0	0	0	95.82	1
QUEST631/40/19	QUEST-04	QUEST-WDS	69.14	0.26	13.38	3.17	0	0	0.98	4.93	3.76	0	0	0	95.63	1
QUEST631/40/20	QUEST-04	QUEST-WDS	69	0.24	13.31	3.07	0	0.03	1.06	5	3.58	0	0	0	95.27	1
QUEST631/40/21	QUEST-04	QUEST-WDS	70.36	0.26	12.06	3.27	0	0.02	1	4.91	3.19	0	0	0	95.06	1
QUEST631/40/22	QUEST-04	QUEST-WDS	68.64	0.27	13.75	3.15	0	0.04	1.02	4.31	3.64	0	0	0	94.82	1
QUEST631/40/23	QUEST-04	QUEST-WDS	67.48	0.26	13.3	3.24	0	0.04	1.07	5.37	3.78	0	0	0	94.53	1

QUEST631/46_Majors

series: QUEST631/46_Majors
series_type: Tephra_Sample_Majors
z: 0.305
z_range: 0.01
sample: QUEST631/46
context: Hekla AD1104
sector: monolith 8
tephra_type: distal
tephra_deposit: fall
material: ash
collected_by: quest
volc_region: EVZ
volcano: Hekla
eruption: Hekla AD1104

labcode	batch	instrument	SiO2	TiO2	Al2O3	FeOt	MnO	MgO	CaO	Na2O	K2O	P2O5	Cl	F	total	ok
QUEST631/46/01	QUEST-04	QUEST-WDS	74.59	0.23	15.12	3.15	0	0.15	1.95	4.57	2.75	0	0	0	102.52	1
QUEST631/46/02	QUEST-04	QUEST-WDS	73.93	0.26	15.05	3.13	0	0.13	1.98	4.97	2.76	0	0	0	102.04	1
QUEST631/46/03	QUEST-04	QUEST-WDS	76.43	0.21	13.14	1.71	0	0.1	0.83	4.35	3.61	0	0	0	100.37	1
QUEST631/46/04	QUEST-04	QUEST-WDS	72.89	0.22	14.58	3.07	0	0.14	2	4.58	2.66	0	0	0	100.13	1
QUEST631/46/05	QUEST-04	QUEST-WDS	72.86	0.25	14.11	3.03	0	0.12	1.93	4.76	2.86	0	0	0	99.92	1
QUEST631/46/06	QUEST-04	QUEST-WDS	73.79	0.28	15	1.52	0	0.41	1.88	4.02	2.98	0	0	0	99.87	1
QUEST631/46/07	QUEST-04	QUEST-WDS	68.21	0.91	15.1	3.32	0	1.11	3.16	4.63	3.34	0	0	0	99.78	1
QUEST631/46/08	QUEST-04	QUEST-WDS	72.74	0.29	14.46	3.03	0	0.12	1.88	4.57	2.67	0	0	0	99.76	1
QUEST631/46/09	QUEST-04	QUEST-WDS	72.66	0.29	14.66	3.07	0	0.13	1.91	4.27	2.65	0	0	0	99.62	1
QUEST631/46/10	QUEST-04	QUEST-WDS	67.64	0.81	16.43	3.3	0	1.11	3.05	4.3	2.79	0	0	0	99.43	1
QUEST631/46/11	QUEST-04	QUEST-WDS	71.62	0.29	15.24	2.99	0	0.14	1.97	4.46	2.65	0	0	0	99.36	1
QUEST631/46/12	QUEST-04	QUEST-WDS	73.66	0.3	13.81	1.51	0	0.4	2.04	4.12	3.23	0	0	0	99.08	1
QUEST631/46/13	QUEST-04	QUEST-WDS	72.35	0.27	14.22	3.06	0	0.14	1.88	4.27	2.72	0	0	0	99.06	1
QUEST631/46/14	QUEST-04	QUEST-WDS	73.31	0.28	13.53	1.49	0	0.43	2.05	4.32	3.29	0	0	0	98.69	1
QUEST631/46/15	QUEST-04	QUEST-WDS	71.29	0.3	14.35	3.15	0	0.13	1.95	4.49	2.74	0	0	0	98.4	1
QUEST631/46/16	QUEST-04	QUEST-WDS	72.2	0.29	13.3	3.12	0	0.13	1.97	4.33	2.78	0	0	0	98.12	1
QUEST631/46/17	QUEST-04	QUEST-WDS	72.46	0.28	15.11	1.44	0	0.43	2	3.51	2.71	0	0	0	97.94	1
QUEST631/46/18	QUEST-04	QUEST-WDS	73.84	0.2	13.34	1.55	0	0.09	0.79	4.47	3.56	0	0	0	97.85	1
QUEST631/46/19	QUEST-04	QUEST-WDS	71.18	0.25	13.35	2.98	0	0.12	1.87	4.73	2.69	0	0	0	97.16	1
QUEST631/46/20	QUEST-04	QUEST-WDS	69.78	0.23	14.23	2.83	0	0.11	1.86	4.87	2.58	0	0	0	96.5	1
QUEST631/46/21	QUEST-04	QUEST-WDS	69.37	0.24	14.31	3.07	0	0.1	1.97	4.13	2.38	0	0	0	95.56	1
QUEST631/46/22	QUEST-04	QUEST-WDS	69.25	0.26	14.15	2.89	0	0.15	1.82	4.24	2.45	0	0	0	95.22	1
QUEST631/46/23	QUEST-04	QUEST-WDS	70.32	0.27	13.9	1.5	0	0.42	1.83	4	2.9	0	0	0	95.14	1

QUEST631/56_Majors

series: QUEST631/56_Majors
series_type: Tephra_Sample_Majors
z: 0.37
z_range: 0.02
sample: QUEST631/56
context: AD860 Layer part A
sector: monolith 8
tephra_type: distal
tephra_deposit: fall
material: ash
collected_by: quest
volc_region: Iceland
volcano: Iceland_volcanoes

labcode	batch	instrument	SiO2	TiO2	Al2O3	FeOt	MnO	MgO	CaO	Na2O	K2O	P2O5	Cl	F	total	ok
QUEST631/56/01	QUEST-04	QUEST-WDS	77.33	0.2	12.62	1.68	0	0.07	0.75	4.41	3.49	0	0	0	100.55	1
QUEST631/56/02	QUEST-04	QUEST-WDS	76.12	0.24	13.15	1.69	0	0.04	0.82	4.62	3.89	0	0	0	100.57	1
QUEST631/56/03	QUEST-04	QUEST-WDS	74.32	0.21	13.2	1.56	0	0.06	0.77	3.88	3.88	0	0	0	97.88	1
QUEST631/56/04	QUEST-04	QUEST-WDS	73.78	0.2	12.27	1.75	0	0.09	0.82	3.89	3.61	0	0	0	96.41	1
QUEST631/56/05	QUEST-04	QUEST-WDS	73.74	0.2	12.41	1.74	0	0.08	0.81	4.02	3.68	0	0	0	96.67	1
QUEST631/56/06	QUEST-04	QUEST-WDS	73.08	0.21	12.89	1.63	0	0.14	0.92	3.53	3.51	0	0	0	95.91	1
QUEST631/56/07	QUEST-04	QUEST-WDS	72.79	0.21	12.88	1.83	0	0.06	0.84	4.35	4.15	0	0	0	97.13	1
QUEST631/56/08	QUEST-04	QUEST-WDS	71.54	0.19	12.65	1.57	0	0.11	0.9	3.96	3.85	0	0	0	94.78	1

QUEST631/57_Majors

series: QUEST631/57_Majors
series_type: Tephra_Sample_Majors
z: 0.37
z_range: 0.02
sample: QUEST631/57
context: AD860 Layer part B
sector: monolith 8
tephra_type: distal
tephra_deposit: fall
material: ash
collected_by: quest
volc_region: Iceland
volcano: Iceland_volcanoes

labcode	batch	instrument	SiO2	TiO2	Al2O3	FeOt	MnO	MgO	CaO	Na2O	K2O	P2O5	Cl	F	total	ok
QUEST631/57/01	QUEST-04	QUEST-WDS	72.48	0.3	15.58	1.53	0	0.45	1.89	4.22	3.26	0	0	0	99.71	1
QUEST631/57/02	QUEST-04	QUEST-WDS	74.25	0.23	13.85	1.52	0	0.4	1.86	4.27	2.84	0	0	0	99.2	1
QUEST631/57/03	QUEST-04	QUEST-WDS	72.8	0.24	14.75	1.61	0	0.44	1.93	4.14	3.18	0	0	0	99.1	1
QUEST631/57/04	QUEST-04	QUEST-WDS	73.63	0.33	13.87	1.55	0	0.41	1.89	4.18	2.97	0	0	0	99.03	1
QUEST631/57/05	QUEST-04	QUEST-WDS	72.92	0.33	14.42	1.6	0	0.4	1.85	4.3	3.1	0	0	0	98.91	1
QUEST631/57/06	QUEST-04	QUEST-WDS	72.98	0.25	14.19	1.57	0	0.43	1.91	4.43	3.08	0	0	0	98.84	1
QUEST631/57/07	QUEST-04	QUEST-WDS	72.12	0.28	14.67	1.56	0	0.4	1.79	4.26	3.35	0	0	0	98.42	1
QUEST631/57/08	QUEST-04	QUEST-WDS	72.82	0.26	14.28	1.51	0	0.4	1.8	4.26	2.86	0	0	0	98.2	1
QUEST631/57/09	QUEST-04	QUEST-WDS	71.54	0.26	14.98	1.5	0	0.45	1.99	4.11	3.31	0	0	0	98.13	1
QUEST631/57/10	QUEST-04	QUEST-WDS	71.98	0.31	14.22	1.49	0	0.38	1.81	4	3.27	0	0	0	97.46	1
QUEST631/57/11	QUEST-04	QUEST-WDS	72.43	0.33	14.64	1.56	0	0.4	2	3.07	2.94	0	0	0	97.37	1
QUEST631/57/12	QUEST-04	QUEST-WDS	70.77	0.32	15.42	1.51	0	0.43	1.86	3.76	3.23	0	0	0	97.29	1
QUEST631/57/13	QUEST-04	QUEST-WDS	69.23	0.31	14.65	1.67	0	0.49	2.11	4.28	3.52	0	0	0	96.26	1
QUEST631/57/14	QUEST-04	QUEST-WDS	71.63	0.26	13.43	1.51	0	0.43	1.84	3.98	3.1	0	0	0	96.17	1
QUEST631/57/15	QUEST-04	QUEST-WDS	69.65	0.25	14.93	1.51	0	0.43	1.8	3.91	3.16	0	0	0	95.65	1
QUEST631/57/16	QUEST-04	QUEST-WDS	69.71	0.3	13.78	1.51	0	0.4	1.82	2.54	5.4	0	0	0	95.47	1
QUEST631/57/17	QUEST-04	QUEST-WDS	71.2	0.27	13.68	1.5	0	0.38	1.78	3.73	2.81	0	0	0	95.35	1

QUEST631/89_Majors

series: QUEST631/89_Majors
series_type: Tephra_Sample_Majors
z: 3.4
z_range: 0.1
sample: QUEST631/89
context: H4 Hekla
sector: core A
tephra_type: distal
tephra_deposit: fall
material: ash
collected_by: quest
volc_region: EVZ
volcano: Hekla
eruption: H4 Hekla

labcode	batch	instrument	SiO2	TiO2	Al2O3	FeOt	MnO	MgO	CaO	Na2O	K2O	P2O5	Cl	F	total	ok
QUEST631/89/01	QUEST-04	QUEST-WDS	74.31	0.13	12.84	1.83	0.09	0.07	1.34	4.66	2.73	0	0	0	98.05	1
QUEST631/89/02	QUEST-04	QUEST-WDS	73.18	0.06	12.43	1.86	0.12	0.01	1.29	4.76	2.75	0	0	0	96.5	1
QUEST631/89/03	QUEST-04	QUEST-WDS	72.95	0.11	12.91	1.88	0.08	0.13	1.31	4.93	2.83	0	0	0	97.03	1
QUEST631/89/04	QUEST-04	QUEST-WDS	72.69	0.1	12.79	1.77	0.1	0.01	1.24	4.62	2.81	0	0	0	96.16	1
QUEST631/89/05	QUEST-04	QUEST-WDS	72.39	0.04	12.72	1.79	0.14	0	1.23	4.78	2.84	0	0	0	95.97	1
QUEST631/89/06	QUEST-04	QUEST-WDS	72.26	0.09	12.64	1.92	0.05	0.01	1.34	4.69	2.69	0	0	0	95.73	1
QUEST631/89/07	QUEST-04	QUEST-WDS	72.12	0.11	12.63	1.83	0.11	0.04	1.14	4.56	2.7	0	0	0	95.29	1
QUEST631/89/08	QUEST-04	QUEST-WDS	71.99	0.06	12.46	1.89	0.13	0.01	1.29	4.55	2.7	0	0	0	95.07	1
QUEST631/89/09	QUEST-04	QUEST-WDS	71.88	0.07	12.7	1.86	0.08	0.07	1.24	4.88	2.85	0	0	0	95.67	1
QUEST631/89/10	QUEST-04	QUEST-WDS	71.77	0.12	12.62	1.96	0.06	0.01	1.21	4.94	2.68	0	0	0	95.4	1
QUEST631/89/11	QUEST-04	QUEST-WDS	71.4	0.14	12.53	1.79	0.13	0.03	1.39	4.72	2.97	0	0	0	95.11	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
1.495	0.01	QUEST631/102	-4952.5	47	Lairg A (QUB-127)	monolith 10	distal	fall	ash	9999	0	EVZ	Hekla	Lairg A	QUB-127
1.35	0.02	QUEST631/100	-4694.5	41	Lairg B / Torfajokull 4700 BC	monolith 10	distal	fall	ash	9999	0	EVZ	Torfajökull	Lairg B / Torfajökull 4700 BC	QUB-141
3.4	0.1	QUEST631/89	-2309.5	20	H4 Hekla	core A	distal	fall	ash	9999	0	EVZ	Hekla	H4 Hekla
0.37	0.02	QUEST631/57			AD860 Layer part B	monolith 8	distal	fall	ash	9999	0	Iceland	Iceland_volcanoes
0.37	0.02	QUEST631/56			AD860 Layer part A	monolith 8	distal	fall	ash	9999	0	Iceland	Iceland_volcanoes
0.305	0.01	QUEST631/46	1104.5	1	Hekla AD1104	monolith 8	distal	fall	ash	9999	0	EVZ	Hekla	Hekla AD1104
0.21	0.02	QUEST631/40	1362.5	1	Oraefajokull 1362	monolith 8	distal	fall	ash	9999	0	OVB	Oraefajokull	Oraefajokull AD1362
0.09	0.02	QUEST631/36	1510.5	1	Hekla 1510	monolith 8	distal	fall	ash	9999	0	EVZ	Hekla	Hekla AD1510	QUB-120
0.06	0.02	QUEST631/35			SLU-5	monolith 8	distal	fall	ash	9999	0	Iceland	Iceland_volcanoes

Tephras

series: Tephras
series_type: Tephras

z	z_range	t	t_sigma	sample	volc_region	volcano	eruption	ref
1.35	0.02	-4694.5	41	QUEST631/100	EVZ	Torfajökull	Lairg B / Torfajökull 4700 BC	doi:10.1002/(sici)1099-1417(199611/12)11:6<485::aid-jqs266>3.3.co;2-k
1.495	0.01	-4952.5	47	QUEST631/102	EVZ	Hekla	Lairg A	doi:10.1002/(sici)1099-1417(199611/12)11:6<485::aid-jqs266>3.3.co;2-k
		-716.5	38	QUEST631/112	Iceland	Iceland_volcanoes	OMH-185 (Barnsmore)
0.09	0.02	1510.5	1	QUEST631/36	EVZ	Hekla	Hekla AD1510	doi:10.1002/(sici)1099-1417(199611/12)11:6<485::aid-jqs266>3.3.co;2-k
0.21	0.02	1362.5	1	QUEST631/40	OVB	Oraefajokull	Oraefajokull AD1362	doi:10.1177/095968369500500111
0.305	0.01	1104.5	1	QUEST631/46	EVZ	Hekla	Hekla AD1104	doi:10.1177/095968369500500111
3.4	0.1	-2309.5	20	QUEST631/89	EVZ	Hekla	H4 Hekla	doi:10.1177/095968369500500111

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

Data

Records

Hekla

Data series

Eruptions

Hekla AD1104_Distribution

H4 Hekla_Distribution

Hekla AD1510_Distribution

Lairg A_Distribution

Iceland_volcanoes

Data series

Eruptions

AD860 Layer part B_Distribution

BIP-24_Distribution

Derrycunihy Wood SH-1_Distribution

NAAZ I_Distribution

Sluggan

Data series

QUEST631/35_Majors

QUEST631/100_Majors

QUEST631/102_Majors

QUEST631/36_Majors

QUEST631/40_Majors

QUEST631/46_Majors

QUEST631/56_Majors

QUEST631/57_Majors

QUEST631/89_Majors

Tephra_Samples

Tephras

Publications

Compilation