Author Topic: TLP Project - Notched Cavities in Lava  (Read 11625 times)

Geoff

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TLP Project - Notched Cavities in Lava
« on: July 16, 2010, 06:52:46 pm »
Background: See this thread for background on this project: Moon Zoo Challenge

Location: Site: Hyginus crater floor (6.3E, 7.8N).

Images: M104476560LE

Discovery: Anthony Cook (April 2010)

Description: Irregular sunken depressions on the floor of Hyginus crater that sits astride the Hyginus rille. Places which seem to be voids in the surrounding solidified lava. These depressions have rough floors and seem devoid of impact craters.

Interest: Are these areas where some explosive outgassing has occurred and removed the top soil, or simply places where the lava has not managed to cover? The depressions show a rough floor and no signs of craters, so might be geologically young. On the other hand, it might be the case that attempts to see craters on rough terrain is always going to be difficult.

Related Links: See this thread for images and information about Hyginus crater: Hyginus Crater Formations and this Image of the Week posting for further information: Hyginus Crater and Rille

Both images below are from LROC strip: M104476560LC


Hyginus Crater floor - zoomed out
~
Hyginus Crater floor - zoomed in


If you find what you think is a sunken depression in the floor of a crater please post it in this thread.
Don't forget a picture, the strip reference (LROC / NAC reference) and the approximate latitude and longitude.
Good luck!  :)
« Last Edit: August 23, 2010, 10:43:16 am by Geoff »

Caro

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Re: TLP Project - Notched Cavities in Lava
« Reply #1 on: July 26, 2010, 06:28:48 am »

AMZ4000s4i     

Tom128

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Re: TLP Project - Notched Cavities in Lava
« Reply #2 on: December 05, 2010, 07:41:18 pm »
Modified this post as I was originally not sure how to classify this formation at Franklin crater.

Luckily, MZ team member IreneAnt posted these comments on the the IOTW section and I have copied them here as well:

" My feeling is that what we have here is a region pretty much covered with impact melt, but with one bright area NOT covered by impact melt for some reason (topographic high?).  I see lap-on features around the bright area, looking like fluid material flowed up to the bright patch and froze before the patch was inundated. Franklin is a large crater, so you would expect a lot of impact melt in the interior. It is also located in the northern highlands. Melt material will often look dark, even when made by melting bright highlands materials. So, I think you are seeing a bright patch of the highlands floor on Franklin crater poking through the darker impact melt material."




38.83 N,  48.07E

http://wms.lroc.asu.edu/lroc/view_lroc/LRO-L-LROC-2-EDR-V1.0/M111279662LE near bottom of photo strip.


WMS image map




Here are some other NAC photo strips of this interesting crater.  Seems like lots of activity happened on the crater floor:

http://wms.lroc.asu.edu/lroc/view_lroc/LRO-L-LROC-2-EDR-V1.0/M124260929RE   This one has some very interesting features.

http://wms.lroc.asu.edu/lroc/view_lroc/LRO-L-LROC-2-EDR-V1.0/M108923338RE
http://wms.lroc.asu.edu/lroc/view_lroc/LRO-L-LROC-2-EDR-V1.0/M113642762LE
http://wms.lroc.asu.edu/lroc/view_lroc/LRO-L-LROC-2-EDR-V1.0/M113635979LE




« Last Edit: December 07, 2010, 12:26:33 am by Tom128 »

Cruuux

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Re: TLP Project - Notched Cavities in Lava
« Reply #3 on: April 01, 2011, 04:36:38 pm »

http://www.moonzoo.org/examine/AMZ4000s4i
# ID: AMZ4000s86
# Latitude: 7.78694°
# Longitude: 6.35279°
# Sun Angle: -82.97°
# Scale: 1.24 meters / pixel


It's not that distinct, but looks quite similar:


http://www.moonzoo.org/examine/AMZ4000s4i
# ID: AMZ4000s7x
# Latitude: 7.93615°
# Longitude: 6.3544°
# Sun Angle: -82.97°
# Scale: 1.24 meters / pixel

Geoff

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Re: TLP Project - Notched Cavities in Lava
« Reply #4 on: April 01, 2011, 06:49:17 pm »
Hi Cruuux

Your first image is from Hyginus crater, a very interesting place! See this Image of the Week for more info: http://forum.moonzoo.org/index.php?topic=173.0
and the Hyginus Crater thread: http://forum.moonzoo.org/index.php?topic=50.0

Tom128

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Geoff

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Re: TLP Project - Notched Cavities in Lava
« Reply #6 on: May 06, 2011, 04:59:31 pm »
Maybe a cavity here:

http://target.lroc.asu.edu/da/qmap.html?mv=eqc&mcx=402737.4192&mcy=-492582.37279&mz=16&ml=FTFB00TT

That looks good Tom  :)

For anyone looking at Tom's image, the illumination is from the right not the left as is usual with Moon Zoo images.

Geoff

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Re: TLP Project - Notched Cavities in Lava
« Reply #7 on: May 06, 2011, 06:40:18 pm »
This Lunar Photo of the Day is relevant to this thread.

Cruuux

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Re: TLP Project - Notched Cavities in Lava
« Reply #8 on: May 08, 2011, 08:15:53 pm »
What about this one?


http://www.moonzoo.org/examine/AMZ4003rmz
ID: AMZ4003rmz
Latitude: 18.625°
Longitude: 5.27321°
Sun Angle: -77.60°
Scale: 0.50 meters / pixel
Zoom Level: 3 

Geoff

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Re: TLP Project - Notched Cavities in Lava
« Reply #9 on: May 09, 2011, 06:20:37 am »
What about this one?


http://www.moonzoo.org/examine/AMZ4003rmz
ID: AMZ4003rmz
Latitude: 18.625°
Longitude: 5.27321°
Sun Angle: -77.60°
Scale: 0.50 meters / pixel
Zoom Level: 3

Hi Cruuux

Your image shows part of the Ina feature, see this thread for more:  INA Images

There is also a related TLP project here: Ina-like Features


placidstorm

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Re: TLP Project - Notched Cavities in Lava
« Reply #10 on: December 10, 2011, 08:06:42 pm »


1m/p



.5 m/p

Act http://target.lroc.asu.edu/da/qmap.html?mv=eqc&mcx=-26239.20657&mcy=656208.14968&mz=13

Nac http://wms.lroc.asu.edu/lroc/view_lroc/LRO-L-LROC-3-CDR-V1.0/M155241035RC

Nac http://wms.lroc.asu.edu/lroc/view_lroc/LRO-L-LROC-3-CDR-V1.0/M155241035LC



The lay of the land . Almost in the crosshairs of Bradley K and Mons Bradley in what looks like a large flow feature .

cross posted for INA "like " stuff



kodemunkey

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Re: TLP Project - Notched Cavities in Lava
« Reply #13 on: December 21, 2011, 08:39:07 pm »
I really need to pay closer attention to the craters /facepalm  :D

Geoff

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Re: TLP Project - Notched Cavities in Lava
« Reply #14 on: December 22, 2011, 07:26:11 am »
Some great finds by placidstorm!