IntChron > doi > 10.1016 > j.jog.2006.09.005
eruption | eruption_type | t | t_sigma | t_source | ref | notes | ||
---|---|---|---|---|---|---|---|---|
Askja AD1875 | Ultra-Plinian | 1875.5 | 1 | Calendar | doi:10.1191/095968399669624108 | AD 1875 historical (see Sigvaldason et al. 1992; Larsen et al. 1999) | ||
Askja-S | Ultra-Plinian | -8859.5 | 240 | IntCal04 | doi:10.1002/jqs.996 | c. 11,050-10,570 cal BP bayesian 14C wiggle-match (Wohlfarth et al. 2006). | ||
NGRIP 1553.85m | Sub-Plinian | -11579.5 | 1 | GICC05 | doi:10.1029/2005jd006079 | NGRIP GICC05 13580 ± 156 b2k. | ||
Glen Garry | Plinian | -225.5 | 82 | IntCal04 | doi:10.1177/0959683607085594 | 2210-1966 yr cal BP 14C wiggle-match (2 sigma; Barber et al. 2008). The same authors conjecture that this tephra derives from the Askja volcanic system. |
eruption | eruption_type | t | t_sigma | t_source | ref | notes | ||
---|---|---|---|---|---|---|---|---|
Eyjafallajokull AD1821-23 | Sub-Plinian | 1822.5 | 2 | Calendar | doi:10.1191/095968399669624108 | AD 1821-23 historical |
eruption | eruption_type | t | t_sigma | t_source | ref | notes | ||
---|---|---|---|---|---|---|---|---|
Saksunarvatn | Ultra-Plinian | -8346.5 | 1 | GICC05 | doi:10.1029/2005jd006079 | c. 10347 ± 89 (GICC05 yr b2k) has been suggested by Rasmussen et al. (2006). | ||
I-THOL-2 (Tv-1) | Plinian | -10649.5 | 1 | GICC05 | doi:10.1029/2005jd006079 | cf. NGRIP 1519.1 m layer. GICC05 age 12650 ± 130 b2k. Alternatively SS09 12450-12454 ice core yrs BP | ||
Hov | Fissure | -4009.5 | 207 | IntCal09 | doi:10.1002/jqs.724 | c. 5170 ± 85 14C yr BP (Wastegard 2002, JQS 17(8), 723-730). Calibrates to 6182-5730 yr cal BP (2 sigma). Same age as SILK A1 based on 14C data from Hovsdalur but basaltic in major element composition. Based on this an origin in the Grimsvotn system is more likely than Katla. | ||
FMAZ III | Plinian | -36121.5 | 1 | GICC05 | doi:10.1016/j.epsl.2010.03.004 | c. 38122 ± 723 b2k yr BP by Davies et al. (2010) from NGRIP 2066.95 m. This replaces c. 33 ka 14C yr by Wastegard et al. (2006), QSR 25, p.2409-2419. |
site | country | longitude | latitude | elevation | site_type | sample | tephra_type | tephra_deposit | material | z_range | collected | collected_by | notes | ||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Lykkjuvøtn | Faroe Islands | -6.842370033 | 61.90930176 | 52 | Terrestrial | QUEST495/31 | distal | fall | ash | quest |
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). |
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 |
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 |
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 |
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 |
eruption | eruption_type | t | t_sigma | t_source | ref | notes | ||
---|---|---|---|---|---|---|---|---|
Vedde Ash | Ultra-Plinian | -10170.5 | 1 | GICC05 | doi:10.1029/2005jd006079 | Bi-model rhyolitic and basalt ash layer, c. 12171 ± 114 yr b2k (GICC05); alternatively NGRIP SS09 11985-11988 ice core yr BP. Norddahl and Haflidason (1992) have suggested that the Skogar tephra is the proximal correlate of the Vedde Ash. | ||
Katla AD1625 | Plinian | 1625.5 | 1 | Calendar | AD 1625 historical | |||
Eldgja tephra | Sub-Plinian | 934.5 | 1 | GICC05 | doi:10.1177/095968369500500201 | c. AD 938 ± 4 (GISP2) or AD934 ± 2. Katla~1000 and K-x are now believed to correspond to this eruption (G. Larsen, 2010, Katla: tephrochronology and eruption history, in Schomacker et al. [eds.] 'The Mýrdalsjökull Ice Cap, Iceland: glacial processes, sediments and landforms on an active volcano', Developments in Quaternary Science vol. 13, pp.23-49, Amsterdam: Elsevier). | ||
GA4-85 | Plinian | 750.5 | 50 | doi:10.1191/0959683602hl538rr | c. AD 700-800 interpolated (Hall & Pilcher 2002). | |||
Tjornuvik AD800 B | Plinian | 800.5 | 50 | doi:10.1191/095968301668079904 | ninth century AD age suggested by Wastegard et al. (2001). | |||
GB4-150 | Plinian | -777.5 | 21 | IntCal04 | doi:10.1191/0959683604hl757rr | c. 800-758 cal BC (Plunkett et al. 2004). | ||
Mjauvotn A | Plinian | -4399.5 | 200 | doi:10.1191/095968301668079904 | c. 5300-5700 14C yr BP radiocarbon. A mid-distal basaltic tephra (Tv-5) dated to c. 6000 BP with a similar geochemistry to this tephra has been recorded in the sediment succession from Lake Torfadalsvatn on northern Iceland (Bjorck et al., 1992). | |||
Mjauvotn B | Plinian | -4399.5 | 200 | doi:10.1191/095968301668079904 | c. 5300-5700 14C yr BP radiocarbon | |||
Torfadalsvatn (Tv-5) | Sub-Plinian | -4954.5 | 240 | IntCal09 | doi:10.1111/j.1502-3885.1992.tb00009.x | Transitional alkali basalt. Dated at Lake Torfadalsvatn to 6000 ± 140 14C yr BP (c.7240-6500 cal BP, 2 sigma). Possibly the mid-distal equivalent of Mjauvotn A tephra on the Faroes (Wastegard 2001). On the basis of major element geochemistry believed to be from Katla. | ||
SILK-A1 | Sub-Plinian | -4009.5 | 207 | IntCal09 | doi:10.1002/jqs.724 | c. 5170 ± 85 14C yr BP (Wastegard 2002, JQS 17(8), 723-730). Calibrates to 6182-5730 yr cal BP (2 sigma). | ||
SILK-A7 | Sub-Plinian | -5189.5 | 123 | IntCal09 | doi:10.1002/jqs.724 | c. 6245 ± 90 14C yr BP calibrates to 7415-6932 yr cal BP (2 sigma; Wastegard 2002) | ||
SILK-YN | Sub-Plinian | 310.5 | 70 | IntCal09 | doi:10.1179/env.2000.5.1.21 | There are three 14C ages for this tephra, from 1500 ± 70 to 1880 ± 60 14C yr BP. Dugmore et al. (2000) argue for an age of 1740 ± 50 14C yr BP. Calibrated age range of 1811-1539 cal BP (2 sigma). | ||
Suduroy tephra | Plinian | -6119.5 | 90 | IntCal09 | doi:10.1002/jqs.724 | Rhyolitic ash layer, c. 7240 ± 95 14C yr BP calibrates to 8310-7868 cal BP (2 sigma; Wastegard 2002, JQS 17(8), 723-730). | ||
NGRIP 1508.26m | Sub-Plinian | -10249.5 | 1 | GICC05 | doi:10.1029/2005jd006079 | Rhyolitic ash layer. NGRIP GICC05 age of 12250 ± 117 b2k years | ||
NGRIP 1573.00m | Sub-Plinian | -12019.5 | 1 | GICC05 | doi:10.1029/2005jd006079 | Basalt layer. NGRIP GICC05 14020 ± 167 b2k. | ||
Dimna Ash | Plinian | -13149.5 | 300 | IntCal04 | doi:10.1016/j.quascirev.2007.04.021 | Rhyolitic ash that is below radiocarbon age of 12780 ± 60 14C yr BP (15400-14850 cal BP) on terrestrial plant macrofossils (Koren et al. 2008) | ||
AF555 | Plinian | -9544.5 | 295 | IntCal09 | doi:10.1002/jqs.1498 | Rhyolitic ash layer. Bayesian age model 11.79-11.20 cal ka BP | ||
Solheimar Ignimbrite | Phreato-Plinian | -10149.5 | 700 | doi:10.1007/bf00298704 | correlated with Vedde Ash and dated to Younger Dryas Stadial. | |||
NGRIP 1861.55m | Sub-Plinian | -25526.5 | 1 | GICC05 | doi:10.1016/j.epsl.2010.03.004 | Transitional alkali basalt; GICC05 age of 27527 ± 410 b2k | ||
NGRIP 1895.24m | Sub-Plinian | -27129.5 | 1 | GICC05 | doi:10.1016/j.epsl.2010.03.004 | Transitional alkali basalt; GICC05 age of 29130 ± 456 b2k | ||
IA2 | Sub-Plinian | -11199.5 | 146 | Orbital | doi:10.1016/s0277-3791(00)00146-3 | Ice rafted rhyolitic ash layer, Bond et al. (2001) assigns this to GI-1b which has a GICC05 age range of 13311-13099 b2k (± 146). | ||
Skopun tephra | Plinian | -7799.5 | 100 | IntCal09 | doi:10.1016/j.quaint.2011.05.014 | 14C modeled age of 9850-9650 yr cal BP (Lind & Wastegard 2011). | ||
St. 5a-TAB-1 | Plinian | -73449.5 | 5000 | Orbital | doi:10.1016/0012-821x(95)00145-3 | TAB geochemical composition | ||
St. 5a-TAB-2 | Plinian | -75549.5 | 5000 | Orbital | doi:10.1016/0012-821x(95)00145-3 | TAB geochemical composition |
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 | QUEST636/54 | distal | fall | ash | quest |
site | country | longitude | latitude | elevation | site_type | sample | tephra_type | tephra_deposit | material | z_range | collected | collected_by | notes | ||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Gurskøy | Norway | 5.557889938 | 62.3708992 | Terrestrial | QUEST637/3 | distal | fall | ash | quest | ||||||
Kvaltjern | Norway | 4.981400013 | 60.42309952 | Terrestrial | QUEST639/3 | distal | fall | ash | quest | ||||||
Lake Kullatorpssjön | Sweden | 12.48770046 | 56.29410172 | 89 | Terrestrial | QUEST692/3 | distal | fall | ash | quest | |||||
Lake Mullsjön | Sweden | 14.36079979 | 58.36930084 | 133 | Terrestrial | QUEST695/3 | distal | fall | ash | quest | |||||
Lerstadvatn, Ålesond | Norway | 6.260990143 | 62.36729813 | Terrestrial | QUEST641/3 | distal | fall | ash | quest | ||||||
Lake Gjølvatn | Norway | 6.252160072 | 62.43230057 | Terrestrial | QUEST640/3 | distal | fall | ash | quest | ||||||
Lillerestjønn | Norway | 6.31704998 | 62.46889877 | Terrestrial | QUEST642/3 | distal | fall | ash | quest | ||||||
Saudedalsmyra | Norway | 6.236690044 | 62.43389893 | Terrestrial | QUEST643/3 | distal | fall | ash | quest | ||||||
Lac de Sewen | France | 6.897220135 | 47.81169891 | 500 | Terrestrial | QUEST823/3 | distal | fall | ash | quest |
eruption | eruption_type | t | t_sigma | t_source | ref | notes | ||
---|---|---|---|---|---|---|---|---|
Oraefajokull AD1727 | Plinian | 1727.5 | 1 | Calendar | doi:10.1191/095968399669624108 | AD 1727 historical | ||
Oraefajokull AD1362 | Ultra-Plinian | 1362.5 | 1 | Calendar | doi:10.1191/095968399669624108 | AD 1362 historical (see Thorarinsson 1958; Larsen et al. 1999) |
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 | QUEST634/67 | distal | fall | ash | quest |
eruption | eruption_type | t | t_sigma | t_source | ref | notes | ||
---|---|---|---|---|---|---|---|---|
Sn-2 | Sub-Plinian | -2454.5 | 163 | IntCal09 | ref:johannesson1981sah | c. 3960 ± 100 14C yr BP (Jóhannesson et al. 1981). Calibrates to 4813-4095 yr cal BP (2 sigma). | ||
SSn (Svinavatn) | Sub-Plinian | -7499.5 | 50 | c. 7500 BC radiocarbon | ||||
Hogstorpsmossen | Plinian | -8347.5 | 108 | IntCal09 | doi:10.1002/(sici)1099-1417(199908)14:5<399::aid-jqs448>3.0.co;2-r | Bracketed by two 14C ages in inverted sequence: 9255 ± 145 and 8980 ± 125 14C yr BP (Bjorck & Wastegard 1999). Weighted mean calibrated age range of 10,556-9931 yr cal BP (2 sigma). | ||
Hovsdalur tephra | Sub-Plinian | -8524.5 | 175 | IntCal09 | doi:10.1002/jqs.724 | c. 9300 ± 85 14C yr BP; i.e. 10,695-10,285 cal BP (2 sigma; Wastegard et al. 2002). | ||
Hasseldalen tephra | Plinian | -9437.5 | 156 | IntCal04 | doi:10.1002/jqs.996 | c. 11,543-11,232 cal BP bayesian 14C wiggle-match (Wohlfarth et al. 2006). | ||
Sn-1 | Sub-Plinian | 170.5 | 45 | IntCal09 | doi:10.3402/polar.v21i2.6489 | c. 1855 ± 25 14C yr BP on peaty soil (Larsen et al. 2002). Calibrates to 1865-1720 yr cal BP (2 sigma). |
eruption | eruption_type | t | t_sigma | t_source | ref | notes | ||
---|---|---|---|---|---|---|---|---|
Landnam (silicic) | 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. | ||
Hoy | Plinian | -4399.5 | 50 | doi:10.1191/0959683602hl538rr | c. 4400 BC radiocarbon (Hall & Pilcher 2002). | |||
Lairg B / Torfajökull 4700 BC | Plinian | -4694.5 | 41 | doi:10.1191/0959683602hl538rr | c. 4774-4677 cal BC 14C wiggle-match (Pilcher et al. 1996; Hall & Pilcher 2002). | |||
An Druim | Plinian | -7609.5 | 40 | IntCal09 | doi:10.1002/jqs.910 | c. 9633-9488 yr cal BP by Turney et al. (2006). Ranner et al. (2005) cites at age of 8590 ± 50 14C yr BP, which calibrates to 9671-9490 yr cal BP (2 sigma). | ||
Ashik ash | Plinian | -8449.5 | 300 | doi:10.1002/jqs.1066 | position below the Saksunarvatn tephra and above the Vedde Ash indicates an early Holocene age. Pyne-O'Donnell (2007) places it above the Pre-Boreal Oscillation. | |||
Torfajökull AD1477 | Ultra-Plinian | 1477.5 | 1 | Calendar | doi:10.1191/095968399669624108 | AD 1477 historical (the eruption was triggered by rifting within the Veidivotn volcanic system). Sometimes called Veidivotn AD1477. Larsen (1984) suggests an age of 1480 ± 11. | ||
Gullbergby tephra | Plinian | -749.5 | 100 | doi:10.1016/j.quaint.2004.04.030 | c. 2700 cal yr BP interpolated (Wastegard 2005) | |||
Høvdarhagi tephra | Plinian | -7774.5 | 125 | IntCal09 | doi:10.1016/j.quaint.2011.05.014 | 14C modeled age of 9850-9600 yr cal BP (Lind & Wastegard 2011). |
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 | QUEST632/75 | distal | fall | ash | quest |
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. |