Journal ArticleDOI
Lead and strontium isotopes in post-glacial basalts from Iceland
Reads0
Chats0
TLDR
In this article, Pb and Sr isotopic study of some postglacial basalts (less than 12,000 yr old) from the southern part of Iceland, and use their new data to evaluate various proposed models for the genesis of volcanic rocks on Iceland.Abstract:
We report here our Pb and Sr isotopic study of some post-glacial basalts (less than 12,000 yr old) from the southern part of Iceland, and use our new data to evaluate various proposed models for the genesis of volcanic rocks on Iceland. The interpretation for Icelandic rocks is also extended to the genesis of volcanic rocks on other oceanic islands of the world.read more
Citations
More filters
Journal ArticleDOI
A general mixing equation with applications to Icelandic basalts
TL;DR: The mixing equation applied by Vollmer [1] to Pb and Sr isotope ratios is shown to be a general equation applicable to consideration of element and isotope ratio.
Journal ArticleDOI
Geochemical characteristics of mid-ocean ridge basalts
TL;DR: In this article, a strong correlation exists between percent TiO 2 (proportional to amount of melting) and Al 2 O 3 /TiO 2, CaO/TiO2 ratios of these close to primary MORB, indicating a progressive release of Al and Ca from the mantle source.
Journal ArticleDOI
Noble Gas Isotope Geochemistry of Mid-Ocean Ridge and Ocean Island Basalts: Characterization of Mantle Source Reservoirs
TL;DR: In the terrestrial environment, the abundances of noble gases are quite low because they were excluded from solid materials during planetary formation in the inner solar system, which makes the noble gases excellent tracers of mantle reservoirs as mentioned in this paper.
Journal ArticleDOI
Isotopic composition of lead in oceanic basalt and its implication to mantle evolution
TL;DR: In this paper, Pb isotopic compositions and U, Th, and Pb concentrations of basalts from the island of Hawaii were reported. But the results of the study were limited to the island and not to all the islands of Hawaii.
Journal ArticleDOI
Elemental and Sr isotope variations in basic lavas from Iceland and the surrounding ocean floor
TL;DR: In this paper, major and trace element data are used to establish the nature and extent of spatial and temporal chemical variations in basalts erupted in the Iceland region of the North Atlantic Ocean.
References
More filters
Journal ArticleDOI
Least-squares fitting of a straight line.
TL;DR: In this paper, a detailed discussion of the best straight line calculation by the method of least squares is given, and the most general solution is found and the conditions under which certain previously de...
Journal ArticleDOI
Iceland Mantle Plume: Geochemical Study of Reykjanes Ridge
TL;DR: In this article, rare earth and minor element concentration variations in basalt recently erupted along the postglacial Reykjanes Ridge Axis and its northward extension over Iceland reflect the existence, spatial influence, and primordial nature of the Iceland hot mantle plume.
Journal ArticleDOI
Basalts from Iceland and Along the Reykjanes Ridge: Sr Isotope Geochemistry
TL;DR: Strontium isotope ratios in basalts demonstrate two distinct mantle sources under Iceland and the Reykjanes Ridge as mentioned in this paper, which is the source of most of the Earth's volcanic activity.
Journal ArticleDOI
Mantle plumes and plate motions
TL;DR: In this paper, it is suggested that convection plumes may be rising from the lower mantle to spread out in the asthenosphere and drive lithospheric plates about and thus possibly provide the primary mechanism which governs the behavior of the earth's surface.