| File | |
| Title |
離溶により生じた単斜シソ輝石母体の結晶構造について
|
| Title |
On the Structure of Clinohypersthene Derived as a Host Phase from Parental Pigeonite by Exsolution
|
| Title Transcription |
リヨウ ニヨリ ショウジタ タンシャ シソキセキ ボタイ ノ ケッショウ コウゾウ ニツイテ
|
| Creator |
Yamaguchi Yoshiaki
Tomita Katsutoshi
|
| Source Title |
島根大学理学部紀要
Memoirs of the Faculty of Science, Shimane University
|
| Volume | 19 |
| Start Page | 151 |
| End Page | 157 |
| Journal Identifire |
ISSN 03879925
|
| Descriptions |
Structure refinement was made for a clinohypersthene C_<.02> Mg_<.51> Fe_<.47> Si_20_6, derived as a host phase from parental pigeonite by exsolution of augite along the metastable extension of the pigeonite solvus into the stability field of hypersthene. The particular characteristics of the structure are discussed, and compared with those of pigeonite and orthohypersthene. The clinohypersthene shows no indication of anti-phase domain structure on the reflections with (h+k) odd, and has six-fold coordination of oxygen around M2 site. Clino- and orthopyroxenes of hypersthene composition have closely similar atomic parameters. Kinetic factors are expected to be strongly responsible for the metastable extension of the pigeonite solvus.
|
| Language |
eng
|
| Resource Type | departmental bulletin paper |
| Publisher |
島根大学理学部
The Faculty of Science, Shimane University
|
| Date of Issued | 1985-12-25 |
| Access Rights | open access |
| Relation |
[NCID] AN00108106
|
