Universitetet i Agder

Tor Sigvald Johansen

Prosjektleder

Johansen, Tor Sigvald; Hauff, Folkmar; Hoernle, Kaj; Klügel, Andreas; Kokfelt, Thomas Find (2005). Basanite to phonolite differentiation within 1550-1750 yr: U-Th-Ra isotopic evidence from the A.D. 1585 eruption on La Palma, Canary Islands. Geology. ISSN: 0091-7613. 33 (11). s 897 - 900. doi:/10.1130/G21663.1.

Müller, Axel Bernd; Husdal, T.; Sunde, Øyvind; Friis, Henrik; Andersen, Tom; Johansen, Tor Sigvald; Werner, Ronald; Thoresen, Øivind; Olerud, Svein (2017). Norwegian Pegmatites I: Tysfjord-Hamarøy, Evje-Iveland, Langesundsfjord. ISBN: 978-82-8347-020-8. Norsk Geologisk Forening. s 122.

Fiskvatn, Kari; Johansen, Tor Sigvald; Johansen, Beate Strøm (2019). Forskningstorg 2019 Naturmuseum og botanisk hage, UiA.
Johansen, Beate Strøm; Johansen, Tor Sigvald (2019). "Kan du finne disse mineralene?/ Can you find these minerals?" Bilde-quiz til ny mineralutstilling i kaktusgangen i naturmuseets faste utstillinger i 1.etg..
Johansen, Tor Sigvald; Hauff, Folkmar; Hoernle, Kaj; Kokfelt, Thomas Find (2004). Geochemistry and U-series isotope systematics of the Cumbre Vieja rift zone, La Palma (Canary Islands).
Johansen, Tor Sigvald; Hauff, Folkmar; Hoernle, Kaj; Kokfelt, Thomas Find (2003). Geochemical and isotopic investigations of the Cumbre Vieja rift zone, La Palma (Canary Islands).
Johansen, Tor Sigvald; Grönvold, Karl; Trønnes, Reidar G (2002). Geochemistry of the postglacial alkaline to transitional off-rift basalts at Snæfellsnes, Iceland.
Johansen, Tor Sigvald; Grönvold, Karl; Trønnes, Reidar G (2000). Petrogenesis of the alkaline off-rift basalts at Snæfellsnes, Iceland.
Johansen, Tor Sigvald (1996). Composition and evolution of the upper mantle under São Miguel, the Azores: Evidence from ultramafic xenoliths.

Sist endret: 21.06.2018 14:06