Beautiful

I was watching TV a few days ago, and David Attenborough's genteel wheeze was describing a desert landscape that was dappled with circular features. I looked up fairy circles, and found these images. Researchers aren't sure what causes them. Some say termites, some say plants competing for water, and some say some of each. Nobody is sure. These are in Namibia.

circles.jpg


140522170252-namibia-fairy-circles.jpg


wt_fairycircle_free.jpg


These are in Australia. The article that went with the image has a cute title.

https://www.newsmax.com/thewire/australia-fairy-circles/2016/03/16/id/719360/

GetFile.aspx
 
When I looked up fairy circles, the Wiki entry had a link to something called Mima (pronounced meema I believe) mounds. For me, this was a happy accident. I have driven the road between here and Merced a number of times, and where the foothills peter out into the valley floor, the ground has an interesting texture, almost quilted-looking. The effect is especially noticeable when the sun is at a low angle. I've been wondering how they came to be.
Mima mounds are also a mystery at present. Some researchers have suggested that millennia of gopher action made them, but that hypothesis has problems, and I've seen no really plausible explanations for them.

It was cool to happen upon the answer to a fairly long-term wondering.

mima_mounds.png


Mima-mounds-aerial-3032-51.jpg


They look like the standing waves one can set up in a shaken bucket of sand. However, these guys consider the seismic and the biotransport hypotheses to be flawed.

https://www.sciencedirect.com/science/article/pii/S0169555X16305062
 
cannabineer said:
When I looked up fairy circles, the Wiki entry had a link to something called Mima (pronounced meema I believe) mounds. For me, this was a happy accident. I have driven the road between here and Merced a number of times, and where the foothills peter out into the valley floor, the ground has an interesting texture, almost quilted-looking. The effect is especially noticeable when the sun is at a low angle. I've been wondering how they came to be.
Mima mounds are also a mystery at present. Some researchers have suggested that millennia of gopher action made them, but that hypothesis has problems, and I've seen no really plausible explanations for them.

It was cool to happen upon the answer to a fairly long-term wondering.

mima_mounds.png


Mima-mounds-aerial-3032-51.jpg


They look like the standing waves one can set up in a shaken bucket of sand. However, these guys consider the seismic and the biotransport hypotheses to be flawed.

https://www.sciencedirect.com/science/article/pii/S0169555X16305062
Click to expand...

hey buddy just found something that might help you

pdf done WASHINGTON DIVISION OF GEOLOGY AND EARTH RESOURCES in 1988

might be a good read for you

http://www.dnr.wa.gov/publications/ger_ri29_mima_mounds.pdf
 
You must log in or register to reply here.
Back
Top