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Canon PowerShot A40 7.8mm, f/3.5, 0.0016 s (1/640) |
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From: 地理規劃仔 (Sep 22, 2004 22:26 HKT) yup..actually it's a flow structure when lava solidified quicking...but it's one of the surface phenomenon here. Another observation from this rock could be seen that it's undergone an folding process with a great preesure bewteen two sides..and the fault line created as well here. As i remember the process may happen in Triassic period <三疊紀/一億九千萬年前>..so if you say that there is no folding process happened in High Island Reservoir.............i just have to say.........nothing...but anyway thx for your comment.......
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From: beechan@yahoo.com (Sep 22, 2004 11:23 HKT) excuse me..this is not folding. This is a flow structure when lava solidified quicking during lava flow. |
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