May 8th 2016
On the west side of the "Great Sputnik Divide" there is no evidence that I can find demonstrating the presence of vents because of this when I was studying the North/South Ridge line, I concluded there were no vents on Pluto not yet understanding Pluto split personality. While studying the burp bulge I wanted to find evidence of venting gasses to support the idea of gasses creating the bulge but I could find none. So I gave up on vents. A friend at Zooniverse encouraged me to keep looking and now I see what appears to be evidence of vents all over the place on the eastern side of the great sputnik divide. This page is all about the ridiculously complicated terrain on the eastern side of SP where vents appear to be peppered all over the place.
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The blueish material is the pure nitrogen fluid that has been wrung out of the atmosphere created by Sputnik Planum and has accumulated on the surface. The brown stuff is likely tholin that has been belched up from below through these conically shaped holes I'm calling vents. 
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These conically shaped holes frequently appear along fracture lines suggesting venting gasses are spewing out of the cracks creating the holes.
While the vents are round, they tend to follow a straight line inline with the fractures. 
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Most of the vents are burping out brown tholin but some look like they are spitting out blueish liquid like stuff or perhaps they are venting a warmer colorless gas that is softening the land ice above. Follow the fracture line in the image above from left to right. There is a mix of brown blue at the left then there is brown tholin venting along a cliff face, then there is blueish stuff lining conically shaped holes. Where the tholin is ejected the landscape is more rigid or angular but when the vents are spewing out blue stuff the surrounding ice seems to have been softened enough to become smooth. This seems to imply at least two different substances are being vented.
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In the southern area east of SP the material is practically all blue with the exception of where we see these conically shaped holes.
Again, this seems to imply tholin is being vented from below the surface and onto the landscape. This tholin is different from what exist west and north of SP. While the blue liquid seems to form from the nitrogen rich atmosphere it apparently takes more time for the blue fluid to form than it takes the tholin rich gasses that spew out of these conically shaped holes to spread on top of the blue stuff. As much as it pains me to say it, this could be considered cryovolcanism but this scene looks different than the theoretical volcanoes on the south pole area. Here we can see how the tholin has been sprayed around on the surface, discoloring the surrounding landscape. |
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Here we can see how the blue fluid is mixing with the tholin creating a washed out looking brownish tholin mix floating on the fluid. |
Look closely at the image below and you can see how the blue pure liquid nitrogen (stripped from the atmosphere) is intermingled with and mixed into the tholin as it runs into SP. Along the edge where the blue fluid runs off the land and into SP the material is primarily blue. As it migrates outward and into SP it turns a reddish hue. This suggest to me that SP is reddish because of all the tholin that has been mixed in with this fluid.
You can see bands of red tholin along with bands of blue fluid flowing outward from the landscape until SP becomes a uniform color with a reddish hue. Inland you can see bands of the tholin lightly discoloring the liquid.
A vent by any other name could be called a volcano with the primary difference being size.
The difference in these vents is they don't seem to be building up a ridge around their rim. Rather they appear to be holes venting gasses. They seem to be mostly spewing out tholin dust which discolors the surrounding land. There is evidence of the gasses dissolving the immediate area thus creating the cone shape and in some places softening the edges of the vent suggesting some of these gasses are warmer than the surface while others are likely just relieving pressure that has built up from below and is released along these fracture lines.
Sputnik Planum is likely creating an underground fluid to its east that is squeezed and pressurized creating condition that vent gasses along weakened fractures.
The difference in these vents is they don't seem to be building up a ridge around their rim. Rather they appear to be holes venting gasses. They seem to be mostly spewing out tholin dust which discolors the surrounding land. There is evidence of the gasses dissolving the immediate area thus creating the cone shape and in some places softening the edges of the vent suggesting some of these gasses are warmer than the surface while others are likely just relieving pressure that has built up from below and is released along these fracture lines.
Sputnik Planum is likely creating an underground fluid to its east that is squeezed and pressurized creating condition that vent gasses along weakened fractures.
