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Thingvallavatn Lake

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Journal Article
Journal: GSA Bulletin
Published: 01 November 2005
GSA Bulletin (2005) 117 (11-12): 1451-1465.
... on time scales of thousands of years. Lake Thingvallavatn is oriented SW-NE, parallel to the trend of normal faults and fissures, which extend northeast from Hengill, a central volcano system. Thingvallavatn's lake sediments provide a continuous high-fidelity record of tectono-magmatic processes. Chirp...
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Distribution of tephra beds in sections at <b>Þingvallavatn</b> ( Haflidason  et a...
Published: 01 December 2007
Fig. 9.  Distribution of tephra beds in sections at Þingvallavatn ( Haflidason et al . 2000 , TH-1 is exposed section, south of lake; Core 5 taken from lake floor), Lake Hestvatn ( Hardardóttir et al . 2001 ), Geysir ( Thorarinsson 1949 a , section measured in pit dug c . 100 m SW of Geysir
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Figure 1. Bathymetric map of <b>Thingvallavatn</b> (contours in m). Positions of C...
Published: 01 November 2005
Figure 1. Bathymetric map of Thingvallavatn (contours in m). Positions of Chirp subbottom profiles are shown by the dotted lines. The white dot shows the position of a 6-m-long sediment core. N—the island of Nesjaey. Inset shows the position of the lake (T) on plate boundary zone in Iceland. HTJ
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TABLE 1. HORIZONS INTERPRETED WITHIN THE CHIRP SUBBOTTOM PROFILES IN <b>LAKE</b> T...
Published: 01 November 2005
TABLE 1. HORIZONS INTERPRETED WITHIN THE CHIRP SUBBOTTOM PROFILES IN LAKE THINGVALLAVATN
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Figure 15. Interpreted evolution of the <b>lake</b> from 5 ka to present; ornament...
Published: 01 November 2005
of the Thingvallahraun lava flow, while the layered hatching represents the infill of diatomaceous sediment. (A) Thingvallavatn at 5 ka. The map shows the lake 4 k.y. after the emplacement of the Thingvallahraun lava flow. The cross sections show that a modest graben existed, with the major faults occurring
Journal Article
Published: 01 October 2018
Mineralogical Magazine (2018) 82 (5): 1147-1168.
... by waters that had already undergone significant isotope exchange with the country rock. Alternatively, 18 O-enriched alteration fluids may have been produced during evaporation and boiling of standing water in former caldera lakes, which then interacted with the intra-caldera rock suites. Irrespective...
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Figure 4. Variation in sedimentation rate with water depth within Thingvall...
Published: 01 November 2005
Figure 4. Variation in sedimentation rate with water depth within Thingvallavatn. In deeper water, Haflidason et al. (1992) found a simple linearly increasing sedimentation rate with water depth. In shallow water (<30 m) around the lake margins, there is uneven sediment deposition indicating
Journal Article
Journal: Geosphere
Published: 01 June 2016
Geosphere (2016) 12 (3): 867-883.
... Research , 111 , B12404 , doi:10.1029/2005JB003879. Bull , J.M. , Minshull , T.A. , Mitchell , N.C. , Dix , J.K. , and Harnardottir , J. , 2005 , Magmatic and tectonic history of Iceland’s western rift zone at Lake Thingvallavatn : Geological Society of America Bulletin , v...
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Journal Article
Published: 28 January 2015
Seismological Research Letters (2015) 86 (2A): 424-430.
... transecting fissure swarm, extending 70–80 km long from the coast south of Hengill to north of Lake Thingvallavatn with an associated graben structure, form the Hengill volcanic system. The Hengill central volcano is currently active and is the main volcanic production focus of the area associated with a high...
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Series: GSA Field Guides
Published: 12 August 2019
DOI: 10.1130/2019.0054(01)
EISBN: 9780813756547
... in the immediate Lake Mývatn area from the rim of the maar Hverfjall. We will then drive into the Krafla caldera, which is the site of one of the more recent effusive eruptions in Iceland (1975–1984 Krafla Fires), and also a high-temperature geothermal field and power plant. Our route will take us to two...
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Journal Article
Published: 01 December 2007
Journal of the Geological Society (2007) 164 (6): 1241-1252.
...Fig. 9.  Distribution of tephra beds in sections at Þingvallavatn ( Haflidason et al . 2000 , TH-1 is exposed section, south of lake; Core 5 taken from lake floor), Lake Hestvatn ( Hardardóttir et al . 2001 ), Geysir ( Thorarinsson 1949 a , section measured in pit dug c . 100 m SW of Geysir...
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