| 1. | Volcanic trachyte plugs and have allowed the formation of shallow beaches.
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| 2. | This mountain is a volcanic cone consisting of trachyte and phonolite.
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| 3. | These two phases are described as trachyte-basaltic to basaltic.
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| 4. | Syni erupted basaltic lavas and Aku, Chepe and Dolinny trachyte.
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| 5. | Main rocks of the peak are trachyte, rhyolite and basalt.
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| 6. | Mount Beerwah ( 556m ) is composed of alkali trachyte.
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| 7. | Mount Beerburrum ( 278m ) is composed of porphyritic trachyte.
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| 8. | Lava flows of more viscous phonotephrite and trachyte erupted after the basanite.
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| 9. | Trachyte is a volcanic rock which typically has graphic texture.
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| 10. | The mountain is a volcanic feature known as a trachyte porphyritic texture.
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