New Moon Structures?

If these pictures have been previously discusse I apologise but while browsing images of moon craters on ;

www.damianpeach.com...

I came across these photos, particularly the first one looks interesting - an off - rectanguar shape inside a crater.



While these next two seem to have tracks running to masses within the craters;








What would cause these tracks specifically, bearing in mind there is no flowing water on the moon?
Again I apologise if this has been done already.

reply to post by Thebudweiserstuntman


Hi
Don't see any rectangle, and never saw any before in Doppelmayer: anyway the resolution is extremely poor.

The "tracks" are actually know as "rilles": they can be found in three basic shapes: Sinuous, Arcuate and Straight. They are basicaly narrow depressions that can be found almost everywhere in the lunar surface.
Here's a good example:

Full Description

This oblique view of the Moon's surface was photographed by the Apollo 10 astronauts in May of 1969. Center point coordinates are located at 13 degrees, 3 minutes east longitude and 7 degrees, 1 minute north latitude. One of the Apollo 10 astronauts attached a 250mm lens and aimed a handheld 70mm camera at the surface from lunar orbit for a series of pictures in this area.

grin.hq.nasa.gov...
Center: JSC
Center Number: AS10-31-4646
GRIN DataBase Number: GPN-2000-001486


[edit on 3/10/2008 by internos]

Regarding the "tracks" in the images, they are called "rilles".

I found this explanation in Wikipedia for the different types of rilles:

Rille (German for 'groove') is typically used to describe any of the long, narrow depressions in the lunar surface that resemble channels. (It is pronounced the same as a secondary name for a river in Normandy in France. See Risle.) Typically a rille can be up to several kilometers wide and hundreds of kilometers in length. However, the term has also been used loosely to describe similar structures on a number of planets in the solar system, including Mars, Venus, and on a number of moons. All bear remarkable structural resemblance to each other.

- Sinuous rilles meander in a curved path like a mature river, and are commonly thought to be the remains of collapsed lava tubes or extinct lava flows. They usually begin at an extinct volcano, then meander and sometimes split as they are followed across the surface. Vallis Schröteri in Oceanus Procellarum is the largest sinuous rille.

- Arcuate rilles have a smooth curve and are found on the edges of the dark lunar maria. They are believed to form when the lava flows that created a mare cool, contract, and sink. This are found all over the moon, examples can be seen near the south-western border of Mare Tranquillitatis and on the south-eastern border of Mare Humorum.

- Straight rilles follow long, linear paths and are believed to be grabens, sections of the crust that have sunk between two parallel faults. These can be readily identified when they pass through craters or mountain ranges. Vallis Alpes is by far the largest graben rille, indeed it is regarded as too large to be called a rille and is itself bisected by a straight rille; Rupes Recta in Mare Nubium is a clearer example.

en.wikipedia.org...

Ops, Internos was here first! You are way too fast for me!!



[edit on 3-10-2008 by ziggystar60]

reply to post by internos


Hi Internos, thanks for the info -
The rectangle structure I'm refering to kinda looks like an old cavas tent structure, almost like a long triange - in the middle of the crater. I would have assumed that impact craters would be concave and can't understand how there is a raised area in the middle.

reply to post by ziggystar60


Cheers ziggystar60 - seems like they are sinuous rilles like your article explains. I could understand fracture - like lines but this explains the 'meandering' river like structures.

well the first one looks interesting, as you can see the structure complete the shape on the other side. doesnt look natural. but the next two i dont really think is anything special... space tunnels? ha joking. nah i dunno. could be moon hair. or the mystical crevasses from which earth extracts its cheese supply.

Originally posted by stevo351
well the first one looks interesting, as you can see the structure complete the shape on the other side. doesnt look natural. but the next two i dont really think is anything special... space tunnels? ha joking. nah i dunno. could be moon hair. or the mystical crevasses from which earth extracts its cheese supply.

Yeah I can't understand why there is a raised and defined structure in an impact crater, as for the other two I was interested in the random curving lines that looked like water flow but were cleared up by ziggystar60 as rilles.

As for the last image, it appears as though there is a faint set of tyre tracks leading into the linear rille running through the middle of the crater. You can see it coming from the bottom right of the picture. Any thoughts?

reply to post by Thebudweiserstuntman


Thebudweiserstuntman, you are welcome
The central formations are known in general, as "peaks":
in cases like this one, it's always very helpful to look at more images of the same formation, especially if from some reverse angle, like in this case:


Better res image (iv_143_h1)

See also: Doppelmayer at Digital Lunar Orbiter Photographic Atlas of the Moon

Every single peak is the result of a series of events due to the primary impact, the one which formed the crater, depending on a huge list of variables:
This one (click on the image for the full size)
is a very simple scheme, and you'll find an interesting article regarding the formations of the lunar craters in general here:Lunar Impact Crater Geology and Structure and here a more detailed paper (.PDF): Formation of Impact Craters




[edit on 3/10/2008 by internos]

Always the best, Internos

reply to post by internos


You rock! Thanks for the explanation.

Now all that's left is the faint tyre marks heading towards the rille on the third photo...

No, it's right, taking shortcuts, I know EXACTLY what the majority of this board will post, "absolute rubbish!" etc!!!

But



---> WAKE UP!

The OP IS right, sorry to disturb a few well ironed neurones at this time, what is it you fear? Getting taken to a FEMA camp?

Think of that song perhaps:

"IF YOU TOLERATE THIS, THEN your CHILDREN WILL BE NEXT."

If that pic doesn't cause you any further thinking than your shopping list, then indeed, you are well cementing the path to authorised political correctness etc.

If you strongly oppose to these sorts of threads and if you are allowed to do this here, any reply getting censored like of of my defense one was, as a reply to a 'veteran' calling me a waste of space, " CLUTTERING THE BOARD", hey stikkynikky, well supported by MOD maria-stardust, well, the end of the name being suitable, as she CENSORED ME, not the stikky, THEN you can slowly see the end of a DECENT FORUM... no offense but I speak my mind.

Still kiss your plastic boxes hello, FEMA won't like ANYONE posting here...waste of breath or finger-action...Hi Coffins.

Stars & flags for this Thread & OP for TRYING, and brilliantly.

reply to post by MarsFanMag

See, I would either agree with you, or not, and go on. But I can't seem to put your post in context with the rest of this thread.

I could skittle it as off topic, but then that would imply I understand where you're going enough to really know that you're off topic. I have no problem with removing off topic posts; sometimes people post in the wrong thread, sometimes they have agendas that diverge from the thread topic, sometimes they're looking for an excuse to spam some advertising, lots of reasons for an off topic. But you just sound like a garbled radio transmission here.

Is this a moderator test? Are you trying to see if late nights and a few brews make us dingy? Before I decide, please do enlighten me, because I have the feeling we're not both rowing in the same direction.

Gentlemen, I would ask for your opinion as to what I suggest about this aliens on the moon thread. I believe I have found a solid reason as to why an alien species would bother to invest in building structures, or for even landing on the moon. This link is to the University of Wisconsin-Madison fusion tech dept and explains what is so special about our moons surface.

fti.neep.wisc.edu...

Looks like the moon might be a regular refueling stop for fusion powered vehicles, as this would be a 99% efficient, non neutron producing (safe from damaging radioactivity exposure) fusion fuel source for thousands of years...until we start mining it.

Also doesn't that fusion reactor in the FTI link look a lot like the proposed power generating device in the area 51 TR-3B vehicle?

If you read or answer this post, pro or con, thank you for your attention.