Free Republic
Browse · Search
News/Activism
Topics · Post Article

To: ForGod'sSake
I made a cursory internet search for South African oriented lakes, and from what little I was able to read, these are deflation basins...wind-sculpted.

"...I don't have a cable-modem, so Google Earth is out for me. FWIW, I took this as a strawman. Where there's a will, there's a way?..."

Google Earth specifically states that users need high-bandwidth connections, which I don't have at home. We wanted to load google earth on our work computers, but were forbidden to do so. Those were my only options. I'd love to have it, but can't at the moment.

"...Rather than sending me to some group of amateurs... Tacky. Just tacky. Not to diminish the pros, but you would agree that "amateurs" have made significant contributions in various disciplines over the years? I have come to a "trust by verify" mode from the scientific community. Inherent problems with that approach should be obvious for a layman...."

Peer-reviewed journals exist in order to weed out wild speculation. There is nothing "tacky" about insisting upon the use of credible sources.

"...Just one other point re the elevations(~5,000') some of these bays/oriented lakes are found and associated marine sediments. Tectonic forces have raised areas that were previously near or even under water? Is there any other explanation for this anomoly?..."

I don't know which bays/oriented lakes you refer to here, but tectonism affects every place in some way or another. A geologist sent me an abstract on Friday concerning some work he's been doing in our area, which suggested (among other things) that this area (Southern Maryland) had been uplifted ~40 meters in the last 37,000 years (mostly, he thinks, due to forebulge during the Wisconsinian glacial maximum). 5000 feet, however, is quite a bit of uplift to have occurred during the relatively short interval of the Quaternary period.

"....Have to run again, but will check back this afternoon...."

Please see if you can review this paper:

Daniels, R. B. and E. E. Gamble. Relations Between Stratigraphy, Geomorphology and Soils in Coastal Plain Areas of Southeastern U.S.A. Geoderma, 21 (1978) pp. 41-65.

This will help acquaint you with coastal plain stratigraphy. Geoderma is an arcane and outrageously expensive journal; you'll probably have to go to the library of the agronomy department at your nearest land-grant university to find it.

201 posted on 07/31/2006 8:38:14 AM PDT by Renfield
[ Post Reply | Private Reply | To 199 | View Replies ]


To: Renfield
I don't know which bays/oriented lakes you refer to here...

The "oriented" lakes in South Africa at ~5000'. I also didn't mean to imply(although it may have looked like it) there were marine sediments associated with these particular formations, but more generally about marine sediments found at great elevations in other parts of the world. Most, but not all of these sediments are really old; the Alps, Himalayas, etc.

...but tectonism affects every place in some way or another. A geologist sent me an abstract on Friday concerning some work he's been doing in our area, which suggested (among other things) that this area (Southern Maryland) had been uplifted ~40 meters in the last 37,000 years (mostly, he thinks, due to forebulge during the Wisconsinian glacial maximum).

I ran across an article in my searches reaching a similar conclusion.

Please see if you can review this paper:

I doubt I'll go quite that far, but I did run across this from HERE:

S  T  R  A  T  I  G  R  A  P  H  Y

Legend
   Q - Quaternary formations
     fluvial and estuarine, silt, sand, and clay
   Tbc -  Bacons Castle Formation
     fluvial-deltaic and tidal, gravel, sand, and clay  
   Ty -  Yorktown Formation
     marine, fossiliferous sand
   Te -  Eastover Formation
     marine, sand and clay
   Tb -  Bon Air Gravel
     fluvial, gravelly sand, silt, and clay
   Tex -  Exmore Breccia
   TK -  Older Tertiary and Cretaceous formations
     marine and deltaic, sand and clay

 

There is nothing to indicate distances and the time periods aren't much help either. If you could maybe flesh it in a little???

FGS

204 posted on 08/01/2006 1:19:41 AM PDT by ForGod'sSake (ABCNNBCBS: An enemy at the gates is less formidable, for he is known and carries his banner openly.)
[ Post Reply | Private Reply | To 201 | View Replies ]

Free Republic
Browse · Search
News/Activism
Topics · Post Article


FreeRepublic, LLC, PO BOX 9771, FRESNO, CA 93794
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson