It sounds like bedding planes of variable "quality" of limestone material or
inclusions. Would be fun to investigate!
Thanks,
Eric Hammarberg
Vice President
Thornton Tomasetti
51 Madison Avenue
New York, NY 10010
T 917.661.7800 F 917.661.7801
D 917.661.8160
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-----Original Message-----
From: [log in to unmask] [mailto:[log in to unmask]]
Sent: Saturday, July 28, 2007 12:06 PM Eastern Standard Time
To: [log in to unmask]
Subject: [BP] eroded limestone question
I was looking at the twin-towered Majestic this morning - the 1931 building
erected by Irwin Chanin, across the street from the Dakota. Unlike the
cast-stone lower floors of its very-near-relation the Century, at 62nd, the
Majestic's are of limestone.
It has an unusual appearance, and I am not certain I have seen it on any
other building in New York. There are very fine, irregular erosion troughs,
just lines really, all longitudinal, kind of like rain drops smearing across
the porthole of your 300 mph jet liner. They are not like beach stuff or
wave action, like I see in other stone installations.
The lines are all parallel to the sidewalk, so they were installed with a
knowledge of the actual graining.
Have I described this adequately? Kind of like someone took a very
irregular comb across the surface, although they are clearl eroded, not
mechanically made. But I cannot imagine what the character or method of the
original deposit was to subsequently allow this lines. This pattern appears
on 9 out of 10 of the perhaps 300 blocks (typicall 4" deep, and perhaps 4
feet on a side). What are they?
Christopher
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