Comments on: Soil creep http://oaklandgeology.wordpress.com/2008/11/12/soil-creep/ focused on, near and under Oakland, California Wed, 22 May 2013 03:36:30 +0000 hourly 1 http://wordpress.com/ By: Mark http://oaklandgeology.wordpress.com/2008/11/12/soil-creep/#comment-1311 Wed, 24 Feb 2010 07:36:41 +0000 http://oaklandgeology.wordpress.com/?p=306#comment-1311 May I ask if this is the old “Redwood Park” area of Tilden Park?

[No, Mark, that's in Berkeley. -- Andrew]

]]> By: Susan http://oaklandgeology.wordpress.com/2008/11/12/soil-creep/#comment-495 Fri, 12 Dec 2008 16:45:43 +0000 http://oaklandgeology.wordpress.com/?p=306#comment-495 I’m guessing alders, but without any leaves it’s hard to tell. Botanists don’t go around identifying trees with no more than photos of their trunks.

]]> By: rebecca bond http://oaklandgeology.wordpress.com/2008/11/12/soil-creep/#comment-488 Thu, 04 Dec 2008 03:31:26 +0000 http://oaklandgeology.wordpress.com/?p=306#comment-488 They look like California Bay Laurel… I’m basing this on the leaf cluster in the upper left corner of the photo….

[That is a laurel leaf cluster, but these are not laurels. — Andrew]

]]> By: Holly http://oaklandgeology.wordpress.com/2008/11/12/soil-creep/#comment-478 Wed, 19 Nov 2008 02:02:40 +0000 http://oaklandgeology.wordpress.com/?p=306#comment-478 Ah, now I get it. Thanks.

]]> By: Andrew http://oaklandgeology.wordpress.com/2008/11/12/soil-creep/#comment-477 Tue, 18 Nov 2008 21:42:24 +0000 http://oaklandgeology.wordpress.com/?p=306#comment-477 They started out as straight saplings, but the ground kept tilting them so that in staying vertical they got curved trunks. Soil creep is faster near the surface, so a vertical-rooted tree will be tilted by differential movement.

]]> By: Holly http://oaklandgeology.wordpress.com/2008/11/12/soil-creep/#comment-475 Tue, 18 Nov 2008 21:14:33 +0000 http://oaklandgeology.wordpress.com/?p=306#comment-475 I didn’t know that about redwoods liking sandy soil and tolerating creep. Makes sense, with their shallow root system. I still don’t quite understand why creep makes the other trees bend, though. Were they originally on a flat surface, and creep dragged them down to a steep slope?

]]> By: Andrew http://oaklandgeology.wordpress.com/2008/11/12/soil-creep/#comment-468 Thu, 13 Nov 2008 18:11:13 +0000 http://oaklandgeology.wordpress.com/?p=306#comment-468 I’ll bet someone does, but I don’t. Something deciduous.

]]> By: Silver Fox http://oaklandgeology.wordpress.com/2008/11/12/soil-creep/#comment-463 Thu, 13 Nov 2008 05:18:45 +0000 http://oaklandgeology.wordpress.com/?p=306#comment-463 A nice photo showing soil creep. Do you know what kind of trees they are? More than one kind?

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