Browsing by Title
- DSpace Home
- →
- Browsing by Title
JavaScript is disabled for your browser. Some features of this site may not work without it.
Browsing by Title
Now showing items 7502-7521 of 43490
-
(2001)Agate samples of acidic, intermediate and basic volcanics from 18 localities around the world and of different age (Precambrian to Tertiary) were studied by trace element and stable isotope analysis to provide information ...
-
(1987)The authors studied the geochemistry of the geologically best surveyed northern part of the Il'men-Vishnevogorsk belt of alkalic rocks, i.e., the Vishnevogorsk complex, at three different erosion levels - near its roots ...
-
GEOCHEMISTRY OF ALUMINOUS PLAGIOGNEISSES: THE ORIGIN OF KYANITE-BEARING ROCKS OF THE BELOMORIAN BELT (2004)Geochemical features (including REE contents) are studied for many samples of fine-grained massive ("dry") aluminous plagiogneisses, which occur as relics among the migmatized and granitized varieties in different parts ...
-
(2001)Petrological, geochemical, and geochronological data for the basic-ultrabasic rocks of the Bulun block from the Sharyzhalgai uplift are reported, and the age and geodynamic environments of these geologic structures are ...
-
(1998)Variations in the accumulation rate of barium in marine sediments are thought to be indicative of variations in marine biological productivity through time. However, the use of Ba as a proxy for paleoproductivity is partly ...
-
(2006)The ~2.7 Ga Sandur Superterrane (SST), of the western Dharwar craton, is a collage of greenstone terranes having distinct lithotectonic associations; volcanic associations are prevalent. Fine-grained metasedimentary rocks, ...
-
(2006)The distribution of boron has been studied in rocks and minerals of the Ilímaussaq complex, South Greenland, using optical emission spectrometry. In the silica-undersaturated rocks of intrusive phases 1 and 3, average B ...
-
(2004)Complete geochemical characteristics have been found for calcareous–silicate rocks of the Kharagol Formation that serves as a reference unit within the Khamardaban polymetamorphic composite terrain (southern folded framing ...
-
(2003)Carbonatites compose sheet bodies in a 300-m sequence of volcanic lamproites, as well as separate large bodies at depths of >250-300 m. An analysis of new high-precision data on concentrations of major, rare, and rare earth ...
-
(2004)We have determined the major and trace element compositions of 176 individual microtektites/spherules from the Australasian, Ivory Coast, and North American microtektite and clinopyroxene-bearing (cpx) spherule layers. ...
-
(2000)Three series of peridotite xenoliths from basanites of the Dzhilinda River were analyzed. The trace-element patterns of clinopyroxenes of Iherzolites of series 1 and 2a correspond to low-degree partial melting of the ...
-
(PANGAEA, 2018-05-29)
-
(PANGAEA, 2003-10-09)
-
(PANGAEA, 2018-05-29)
-
(1988)We have analyzed the geochemistry of eclogites from the Kastek, Kirgiz and Atbashi Ranges of the Tien Shan in Kirgizia as well as from the Sulutyube area in northern Kazakhstan. From the data obtained, we conclude that ...
-
(2001)The geochemistry of subduction-related gabbroids and granitoids was studied in the Magadan Massif, a large intrusion in the inner zone of the Okhotsk-Chukotka volcanic belt (OCVB), which is an active continental margin of ...
Now showing items 7502-7521 of 43490