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...And also several times more massive! ResMar 21:44, 16 November 2010 (UTC)

I'm not surprised. Is this apparently flattish shape a fixed ratio with tallness, I wonder? I mean, because we're looking at just the very top, and most of it is under water, it's to be expected? Tony (talk) 08:37, 17 November 2010 (UTC)

Stylised cross-section of Mauna Kea

If you're asking whether the mountain has the same (lack of) steepness underwater, I believe the answer is no (see e.g. the cross-section at left). The lava cools down more quickly underwater and hence forms a steeper slope. --Avenue (talk) 13:44, 17 November 2010 (UTC)

Or if you're just wondering whether all volcanoes get less steep towards the top, stratovolcanoes like Mount Damavand show that's not the case. --Avenue (talk) 13:56, 17 November 2010 (UTC)

Ah, thanks. I was wondering about both of those issues. Tony (talk) 14:26, 17 November 2010 (UTC)