Phu Wua

Phu Tham Phra Waterfall below Phu Wua

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Dean

Dean - Dec 26, 2006 10:02 pm - Voted 10/10

Gorgeous

What a great shot of a special waterfall.

mountaingazelle

mountaingazelle - Dec 26, 2006 10:10 pm - Hasn't voted

Re: Gorgeous

Thanks Dean! There are many waterfalls in this area. This photo was taken in January when the water level was low. So you can only imagine how much water there is during spring run-off.

tuntun

tuntun - Jan 10, 2007 1:46 am - Voted 10/10

Good photo

I love waterfall. Eventhough, can see ripple mark on the rock. In Thailand right?
Tun

mountaingazelle

mountaingazelle - Jan 10, 2007 5:50 pm - Hasn't voted

Re: Good photo

Yes, it is attached to the North-East Thailand page and located in the Nong Khai Province.

Dan Dalton

Dan Dalton - Jan 18, 2007 9:54 pm - Voted 10/10

As a geoloist/sedimentologist...

I just have to point out the beautiful dune-scale cross beds that area all over this rock. It is really awesome. The 'ripples' at the top are not really from the water, they are merely harder sections of the rock layers (boundaries to each cross-bed set) that are more resistant than the stuff in between. Nice shot.

Dan

Alex Wood

Alex Wood - Mar 6, 2010 10:36 pm - Voted 10/10

Re: As a geoloist/sedimentologist...

as another geologist (still in college though), what type of depositional environment would have this been formed in? The cross bedding is nice and typical of an aeolian environment, but I have never seen them this dark???

mountaingazelle

mountaingazelle - Mar 7, 2010 2:01 am - Hasn't voted

Re: As a geoloist/sedimentologist...

Thanks for your comments guys! This waterfall is located in remote northeastern Thailand near the border of Laos. It is in the Phu Wua Mountains by the Mekong River. This area has sandstone rock and is surrounded by forested hills. There were large potholes at the bottom of the falls where you could swim. The climate is hot and humid. In January, it was warm and hiking to this waterfall was awesome. There are actually several waterfalls in this area which is part of a wildlife sanctuary.

Alex Wood

Alex Wood - Mar 7, 2010 2:30 pm - Voted 10/10

Re: As a geoloist/sedimentologist...

I guess it is just a different sandstone then the stuff found in the SW US. Cool stuff

mountaingazelle

mountaingazelle - Mar 7, 2010 3:21 pm - Hasn't voted

Re: As a geoloist/sedimentologist...

Yes, I believe you are correct. Not much information available on the geology of this area. The sandstone had a different appearance than I am used to seeing in the southwest desert U.S.

Dan Dalton

Dan Dalton - Nov 15, 2010 3:42 pm - Voted 10/10

Re: As a geoloist/sedimentologist...

Only a hand sample can tell us, we have to looks at the rock at a much smaller scale. If the grains of (more than likely quartz) are frosted, then it will signify an aeolian deposition (wind deposited, the grains are frosted cuz they bump into eachother in the air.)If not, dunes like this could also easily be formed in a channel environment, etc.

mountaingazelle

mountaingazelle - Nov 15, 2010 4:07 pm - Hasn't voted

Re: As a geoloist/sedimentologist...

Thanks. I appreciate the info. We were just there to cool off from the warm weather. I’m sure geologists would enjoy researching this area.

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