OT: Calcium in Caves
- Subject: [PHOTO] [iris-photos] OT: Calcium in Caves
- From: "* G* C* <j*@erols.com>
- Date: Wed, 25 Feb 2004 17:37:13 -0500
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Here is a photo of yours truly MANY years
ago at the entrance of Lost River, an underground river in southern Indiana's
karst (a type of limestone terrain) region, and one of the formations along the
river's course. During the decade or so during which I explored these
caves and underground streams, we also found, quite rarely, a
formation which we called a "moonmilk waterfall", which was limestone in a
liquid state, pure white, cascading from a height at a flow rate so slow as to
appear static. Unfortunately, I have no photos of
that. We also found what were called "gypsum flowers" quite
frequently. When I brought my first seedlings, packed in wet sand, to
Virginia almost 29 years ago, the only spot in the yard that had full sun was
solid yellow clay. Not having any money to spare in those days, I
pulverized an old stump and worked that into the soil, while looking for a
source of gypsum. No one in the area, including the major local nurseries,
had ever heard of it. I finally found an industrial plant where it was
used and persuaded them to sell me a couple of bags. With this added to
the soil, the seedlings survived that first year, while I cleared more areas for
planting. -- Griff
zone 7 in
Virginia
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