http://www.onr.navy.mil/focus/ocean/water/salinity1.htm
Ocean Water: Salinity
"Did you ever wonder why the oceans are filled with salt water instead of
fresh? Just where did the salt come from? And is it the same salt you find
on a dining room table? Most of the salt in the oceans came from land. Over
millions of years, rain, rivers, and streams have washed over rocks
containing the compound sodium chloride (NaCl), and carried it into the sea.
You may know sodium chloride by its common name: table salt! Some of the
salt in the oceans comes from undersea volcanoes and hydrothermal vents.
When water evaporates from the surface of the ocean, the salt is left
behind. After millions of years, the oceans have developed a noticeably
salty taste.
The ocean waters can be divided into three layers, depending on their
densities. Less dense waters form a top layer called the surface mixed zone.
The temperature and salinity of this layer can change often because it is in
direct contact with the air. For example, water evaporation could cause an
increase in salinity, and a cold front could cause a drop in temperature."
-DonW-
________________________________
From: revtec [mailto:[EMAIL PROTECTED]
Sent: Tuesday, January 04, 2005 7:31 AM
To: [email protected]
Subject: Re: Salty water from Mars?
The oceans are obviously getting saltier each year as additiona
minerals are disolved by rain water and washed to the sea. It has been
calculated through measurements of river flow rates world wide with their
associated salt content how much this is. This rate is such that the oceans
of 50 million years ago would have been fresh water. As I recall, this
argument was used to debunk 6,000 yr. biblical creation, but now it has
become a serious limitation to the 10's or 100's of additional millions of
years needed by evolution theory. That 50 million is a maximum number since
leaching rates drop over time as the mineral deposits become depleted. Also
the structure of many of the worlds river valleys show evidence of much
higher rates of water flow than we presently see.
Check "The Genesis Flood" by Whitcomb and Morris for more details.
Regarding the fate of Mars' water, are we approaching some
vindication of Velikovski? There remain some difficult problems in orbital
mechanics.
Jeff
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