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Record #146568:
- #146568
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MARC recordStratigraphy, palaeomagnetism and age of volcanics in the upper regions of THjórsárdalur valley, central southern Iceland / Léo Kristjánsson, Robert A. Duncan, Ágúst Gudhmundsson.
| Title: | Stratigraphy, palaeomagnetism and age of volcanics in the upper regions of THjórsárdalur valley, central southern Iceland / Léo Kristjánsson, Robert A. Duncan, Ágúst Gudhmundsson. |
| Author(s): | Kristjánsson, Léo. Duncan, Robert A. Gudhmundsson, Ágúst. |
| Date: | 1998. |
| In: | Boreas. (1998.), Vol. 27(1) (1998) |
| Abstract: | "Hreppar Formation" is succession of basalt lavas and clastic material, with slight anticlinal structure. It may represent crustal fragment left by eastwards movement of active spreading zone during past 2-3 Ma. Evidence of several cycles by alternating glacial-interglacials is seen. Stratigraphic study was combined with K-Ar age determinations. Units from Jaramillo geomagnetic subchron are present, and at least one polarity reversal in lower Matuyama chron is recorded. |
| Notes: | Boreas. Vol. 27(1) :1-13 (1998). |
| Keywords: | 54.027 -- Isotope analysis. 550.384.3 -- Palaeomagnetism, secular change. 551.7 -- Stratigraphy. B -- Geology and soil sciences. (*3) -- Arctic regions. (*35) -- Iceland. |
| SPRI record no.: | 146568 |
LDR 01428naa#a2200000#a#4500 001 SPRI-146568 005 20231202183123.0 007 ta 008 231202s1998####xx#ab#|##|###|0||#0|eng#d 035 ## ‡aSPRI-146568 040 ## ‡aUkCU-P‡beng‡eaacr 100 1# ‡aKristjánsson, Léo. 245 10 ‡aStratigraphy, palaeomagnetism and age of volcanics in the upper regions of THjórsárdalur valley, central southern Iceland /‡cLéo Kristjánsson, Robert A. Duncan, Ágúst Gudhmundsson. 260 ## ‡a[S.l.] :‡b[s.n.],‡c1998. 300 ## ‡ap. 1-13 :‡bdiags., tables, maps. 500 ## ‡aBoreas. Vol. 27(1) :1-13 (1998). 520 3# ‡a"Hreppar Formation" is succession of basalt lavas and clastic material, with slight anticlinal structure. It may represent crustal fragment left by eastwards movement of active spreading zone during past 2-3 Ma. Evidence of several cycles by alternating glacial-interglacials is seen. Stratigraphic study was combined with K-Ar age determinations. Units from Jaramillo geomagnetic subchron are present, and at least one polarity reversal in lower Matuyama chron is recorded. 650 07 ‡a54.027 -- Isotope analysis.‡2udc 650 07 ‡a550.384.3 -- Palaeomagnetism, secular change.‡2udc 650 07 ‡a551.7 -- Stratigraphy.‡2udc 650 07 ‡aB -- Geology and soil sciences.‡2local 651 #7 ‡a(*3) -- Arctic regions.‡2udc 651 #7 ‡a(*35) -- Iceland.‡2udc 700 1# ‡aDuncan, Robert A. 700 1# ‡aGudhmundsson, Ágúst. 773 0# ‡7nnas ‡tBoreas. ‡gVol. 27(1) (1998) ‡wSPRI-56035 917 ## ‡aUnenhanced record from Muscat, imported 2019 948 3# ‡a20231202