1. Obsidian is a special kind of rhyolite; it is a natural glass, whereas ordinary rhyolites are not.

2. Rhyolite, with its limited size and 22, 300-mile distance above the test range, was slim competition.

3. The codename was chosen because rhyolite is a volcanic rock containing colourful pieces of quartz set in a mass of crystals.

4. The extrusive equivalent of granite is rhyolite.

5. Mountain mainly by rhyolite and tuff composition, there are local granite.

6. The ore bodies are confined to Yanshanian metamorphosed rhyolite porphyry and felsite.

7. The features and the development law of rhyolite landforms are unique.

8. The Cretaceous rhyolite - porphyry is the main parent rock Of the deposit ,[Sentencedict] extending inNE - orientation.

9. What was needed was an advanced, geosynchronous follow-on system to Rhyolite.

10. The rock assemblages of the Bayinbuluke formation are mainly alkaline basalt - thick andesite - alkaline rhyolite.

11. Lianhuazhai volcanic cycle which occurs in late Jurassic epoch is unimodal rock association composed of rhyolite.

12. The pyroclastic rock fragments comprise quartzite, schist, gneiss, basalt , andesite, rhyolite and quartz.

13. Nanliang complex is mainly composed of porphyritic granite, granophyre, rhyolite - porphyry and rhyolitic agmatite-lava.

14. The deposit is hosted in the Mesozoic Upper Cretaceous volcanic rocks, associated with dacite, andesite, andesitic porphyrite and rhyolite.

15. Major volcanic rock types of Carboniferous times are andesitic basalt, dacite, rhyolite, characterized by a bimodal volcanic suite.

16. The Qi'eshan Group volcanic rocks consist of basalt, basaltic andesite, dacite and rhyolite.

17. The lavas mainly include basalt, dolerite, fumarolic, amygdaloidal andesite, trachy-andesite and as well as rhyolite.

18. Carboniferous volcanic rocks in Altay, Xinjiang, mainly exist in its northeastern part. They consist of rhyolite, dacite and cataclastlava.

19. The volcanic rocks belong to high kalium calc alkalic series and can be divided into andesite, dacite, trachydacite and rhyolite by petrochemical composition.

20. On the other hand, the remarkable difference in REE and trace element normalized patterns of basalt, andesite, dacite and rhyolite suggests the different source.