Creator |
|
Language |
|
Publisher |
|
|
Date |
|
Source Title |
|
Vol |
|
Issue |
|
First Page |
|
Last Page |
|
Publication Type |
|
Access Rights |
|
JaLC DOI |
|
Abstract |
Structural state (Al/Si order-disorder) determination has been made with an X-ray diffractometry on some alkali-feldspars and plagioclases in the Cretaceous granitic rocks of the northern Kitakami mou...ntains. The feldspar minerals were divided into three groups from the relations between Al/Si order-disorder and Or content of alkali-feldspars, and the Al/Si order-disorder relations between coexisting alkali-feldspars and plagioclases. The results suggest that at least three types of granitic masses exist in this province.show more
|