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描述
English: Rocks from the Bishop Tuff, an ignimbrite tuff from Owens River Gorge, California. On the left, a rock from the latter stages of the eruption and the top of the deposit; note large grey, oval pumice fragments. On the right, a rock from the earlier part of the eruption and the bottom of the deposit; note dark, flat fiamme (squished pumice) and apparent increase in phenocrysts, though the compression that caused the fiamme most likely compressed the matrix of the tuff, increasing the apparent abundance of crystals, with respect to the matrix.
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來源 自己作品 (Original text: I (Qfl247 (talk)) created this work entirely by myself.)
作者 Qfl247 (talk)

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The original description page was here. All following user names refer to en.wikipedia.
  • 2010-06-13 03:34 Qfl247 3648×2736× (2917732 bytes) {{Information |Description = Rocks from the [[Bishop Tuff]], an [[ignimbrite]] [[tuff]] from [[Owens River Gorge]], [[California]]. On the left, a rock from the latter stages of the eruption and the top of the deposit; note large grey, oval [[pumice]

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現時2010年8月10號 (二) 22:21響2010年8月10號 (二) 22:21嘅縮圖版本3,648 × 2,736(2.78 MB)Gemini1980{{Information |Description={{en|Rocks from the en:Bishop Tuff, an en:ignimbrite en:tuff from en:Owens River Gorge, en:California. On the left, a rock from the latter stages of the eruption and the top of the deposit; note la

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