Browsing ELibrary by Author "Ogasawara Y."
- DSpace Home
- →
- Геология России
- →
- ELibrary
- →
- Browsing ELibrary by Author
JavaScript is disabled for your browser. Some features of this site may not work without it.
Browsing ELibrary by Author "Ogasawara Y."
Now showing items 1-9 of 9
-
Zhu Y.; Ogasawara Y. (2002)The dolomite-dissociation textures documented here in rocks from the Kokchetav ultrahigh-pressure massif suggest that the experimentally expected dolomite dissociation happened in the subducted slabs represented by these ...
-
Zhu Y.; Ogasawara Y. (2004)Clinopyroxene phenocrysts in the Kokchetav trachybasalts are variable in composition and textures. Two distinctive cores are recognized: diopside cores and green salite cores. The diopside cores with Mg# of 80-90 are mantled ...
-
Ogasawara Y.; Fukasawa K.; Maruyama S. (2002)Coesite exsolved from supersilicic titanite was discovered in an impure calcite marble at Kumdykol in the Kokchetav UHP (ultrahigh-pressure) metamorphic terrane, northern Kazakhstan. This impure marble consists mainly of ...
-
Katayama I.; Ohta M.; Ogasawara Y. (2002)In order to constrain the metamorphic evolution of deeply subducted impure marble from the Kokchetav massif, we investigated mineral inclusions in zircon, which is known to protect ultrahigh-pressure (UHP) phases from ...
-
Ohta M.; Ogasawara Y.; Mock T.; Rumble D. (2003)Diamond-bearing carbonate rocks from Kumdy-Kol, Kokchetav massif, Kazakhstan, were strongly altered by fluids flowing through fractures and infiltrating along grain boundaries during exhumation. Alteration includes ...
-
Yongfeng Z.H.U.; Libing G.U.; Shihua S.U.N.; Jiang N.; Honma H.; Ogasawara Y. (2001)Lower Permian volcanism was the first magmatic activity to occur after the collision events in the Mongolian orogenic zone, east China. The Permian volcanic rocks are therefore a key to understanding the dynamics of the ...
-
Zhu Y.; Ogasawara Y. (2002)We document the exsolution of phlogopite and coesite/quartz from pre-existing super-silicic clinopyroxene in dolomite marble from the Kokchetav massif, northern Kazakhstan. The exsolution texture was formed by clinopyroxene ...
-
Zhu Y.; Ogasawara Y.; Ayabe T. (2002)Kokchetav ‘lamproite’ occurs in the east end of Kokchetav massif and consists of phenocryst (mainly clinopyroxene) and matrix (mainly feldspar). The compositions of clinopyroxene, magnetite and biotite phenocryst were ...
-
Ishida H.; Ogasawara Y.; Ohsumi K.; Saito A. (2003)The abundance and morphology of microdiamond in dolomite marble from Kumdy-kol in the Kokchetav Massif, are unusual; a previous study estimated the maximum content of diamonds in dolomite marble to be about 2700 carat ...
Now showing items 1-9 of 9
Search DSpace
Browse
-
All of DSpace
-
This Collection