Friday, October 30, 2009

How Old is that River?

I saw a travel ad recently for Asheville, North Carolina that claimed that the New River that runs through town was the second oldest river in the world, second only to the Nile. I was surprised to hear this. I don't know why, I guess I was just surprised that something so old would be so close to where I live.

I decided to look into this. What I found was that there is no universally applicable and accepted method of determining the age of a river. About the best you can do is to put an upper and/or lower limit on the age. For instance, if you can determine through other methods when the rock that the river runs through first pushed its way up to the earth's surface, that would give you a maximum age. If you can date the sediment or fossils at the bottom of the river bed, that would give you a minimum age.

In many cases, these methods give you a very wide range that makes it impossible to accurately rank the ages of rivers. Here is a good article from the State of West Virginia that explains how difficult it is to determine the age of the New River (the New River runs through West Virginia and Virginia along with North Carolina). The info about the age is at the end, but the rest of the article is interesting as well.

According to the Journal of Geography, "Appalachia's New River was labeled 'the second oldest river in the world' during the 1970s as part of a campaign to save the river from being dammed. Despite the absence of geomorphic evidence, the promotion of the superlative age of the river was so successful that the mythical label became reality in the minds of the region's populace."

4 comments:

  1. Typically the Idaho type label dior replica started her to begin with self-governing stow through Beijing's main store shopping district Leg Kong Destination, and then the to begin with convention through Beijing, virtually all pouch Couture in your show, among them: gucci replica, Teenagers not to mention division interior design show, along the lines of wholesale handbags, louis vuitton replica. A zone from step 2, 434 sq . ft. from establishments, much of the possessions concerning showcase from the outlet, making your good sized spot Connaught complimentary freehand, the actual experience from pleasure embellishing, but more seems to have big high-end form. An excellent comprehensive forensics education time honored Mexican impress hublot replica outstanding personal taste not to mention type smart humour. Typically the have discusses the actual general trends we tend to check out turn up regularly from the fests, typically the general trends are actually fake chanel, Luxe boho, Glam are insane not to mention Colour combination clash. The summertime from absolutely adore gallery might be impressed by your clothing our most desired event running the famous people along the lines of approach check out presenter Jameela Jamil, Pixie Geldof not to mention boho twin Sienna Miller virtually all what individuals slip on his or her's event gowns with a edgy disposition.

    ReplyDelete

  2. Typically the chronograph seems to have a particular counter top. Typically the two-piece tonneau carved 18K yellow-gold claim might be breitling replica sale anatomically rounded from a capacity from 40x34mm as well as some thick from 13mm. Accompanied by a rounded sapphire precious stone it includes check out correctors in the middle not to mention old watches olive-shaped pushers with the help of claim protectors not to mention old watches crown. The back might be fixed from check out screws as well as water resistant towards 3atm (30m). It again goes along with hand-stitched crocodile straps and also old watches form. Typically the silvered guilloche soleil dial originates rounded with the help of screen printed Arabic numerals. Typically the Stuart wrists and hands are actually tag heuer replica sale through blued all steel metal. Indications can include time of day not to mention 24-hour by 3 not to mention few weeks with the help of retrograde personally by 6. Typically the four-year bike located by 8 and also big day by 9 not to mention moonphase by 12. It includes cardiovascular a few seconds not to mention hour record with the help of categories from 1/5 further. Cintree Curvex Chrono Perpetual Diary Bi-retrograde happens to be an mechanical together with the Franck Muller 5888 BR Quality. It includes 48 per hour capability park as well as vibrates by twenty one, 600vph. Which involves 48 jewelry with the help of height from 26. 20mm, it happens to be supplied some flat-balance our warmer tempuratures with the help of shock-absorber structure. Typically the rotor features breitling replica sale platinum. Besides, this unique section might be hand-finished.

    ReplyDelete