Author Topic: TLP Project - Lava Tube Sky Lights  (Read 36042 times)

IreneAnt

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Re: TLP Project - Lava Tube Sky Lights
« Reply #30 on: July 27, 2010, 01:46:54 am »


# ID: AMZ10009ah
# Latitude: 23.2886°
# Longitude: 312.87°
# Sun Angle: -83.59°
# Scale: 1.42 meters / pixel
# Zoom Level: 3
Now that's an interesting one at the centre with cracks either side..... Hmmmm....

Wow, that is a beautiful image. I would love to say that is a lava tube skylight.

Unfortunately, it is located on the slopes and terraces of a rather large impact crater, so it cannot be a lava tube. But, it is still very interesting. If you look around the corresponding MyMoonZoo scene (http://www.moonzoo.org/examine/AMZ10009ah), you can see lots of impact melt features (flows, pools, etc.). It is possible that this hole was formed when a melt pool was disturbed and drained, leaving the overlying melt chill crust unsupported, thus allowing it to collapse. This would be somewhat similar to a lava tube. But it is probably more likely that this hole was formed when a boulder (possibly from that boulder-laden flow coming from the lower right) fell through a relatively thin melt chill crust.  Then again, it might be something completely different.

Neat stuff!!

jules

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Re: TLP Project - Lava Tube Sky Lights
« Reply #31 on: July 27, 2010, 10:11:20 am »
Thanks Irene. I think we have seen several of these "melt pool holes" - and been fooled by them into thinking they were lava tube skylights.

Half65

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Re: TLP Project - Lava Tube Sky Lights
« Reply #32 on: July 27, 2010, 12:56:57 pm »
Thanks Irene for explanation.

Half65

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Re: TLP Project - Lava Tube Sky Lights
« Reply #33 on: July 27, 2010, 05:02:00 pm »
I know is not a Lava Tube but I found another hole.
Small in the upper center



# ID: AMZ1000pvu
# Latitude: 48.2504°
# Longitude: 3.79834°
# Sun Angle: -58.97°
# Scale: 1.70 meters / pixel
# Zoom Level: 3

Half65

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Re: TLP Project - Lava Tube Sky Lights
« Reply #34 on: July 27, 2010, 05:25:40 pm »


# ID: AMZ1002eaw
# Latitude: -3.68157°
# Longitude: 337.268°
# Sun Angle: -86.69°
# Scale: 0.50 meters / pixel
# Zoom Level: 3

Half65

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Re: TLP Project - Lava Tube Sky Lights
« Reply #35 on: July 27, 2010, 09:25:15 pm »



# ID: AMZ1000z89
# Latitude: 23.5662°
# Longitude: 312.694°
# Sun Angle: -69.63°
# Scale: 1.43 meters / pixel
# Zoom Level: 3

Half65

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Re: TLP Project - Lava Tube Sky Lights
« Reply #36 on: July 27, 2010, 09:34:54 pm »


# ID: AMZ1000zcj
# Latitude: 23.3226°
# Longitude: 312.721°
# Sun Angle: -69.63°
# Scale: 1.43 meters / pixel
# Zoom Level: 3

Half65

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Re: TLP Project - Lava Tube Sky Lights
« Reply #37 on: July 27, 2010, 09:39:12 pm »
Center right



# ID: AMZ1000zb8
# Latitude: 24.1406°
# Longitude: 312.726°
# Sun Angle: -69.63°
# Scale: 1.43 meters / pixel
# Zoom Level: 3

Half65

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Re: TLP Project - Lava Tube Sky Lights
« Reply #38 on: July 27, 2010, 09:43:57 pm »
Upper left



# ID: AMZ1000zj4
# Latitude: 24.1058°
# Longitude: 312.783°
# Sun Angle: -69.63°
# Scale: 1.43 meters / pixel
# Zoom Level: 3

Half65

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Re: TLP Project - Lava Tube Sky Lights
« Reply #39 on: July 27, 2010, 09:46:49 pm »
The black line near the center


# ID: AMZ1000zj6
# Latitude: 24.071°
# Longitude: 312.783°
# Sun Angle: -69.63°
# Scale: 1.43 meters / pixel
# Zoom Level: 3 

Half65

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Re: TLP Project - Lava Tube Sky Lights
« Reply #40 on: July 27, 2010, 09:50:06 pm »


# ID: AMZ1000zfu
# Latitude: 23.7055°
# Longitude: 312.752°
# Sun Angle: -69.63°
# Scale: 1.43 meters / pixel
# Zoom Level: 3

Half65

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Re: TLP Project - Lava Tube Sky Lights
« Reply #41 on: July 28, 2010, 06:59:06 pm »
Upper right



# ID: AMZ1000c6w
# Latitude: 6.22066°
# Longitude: 187.802°
# Sun Angle: -86.44°
# Scale: 1.23 meters / pixel
# Zoom Level: 3

ElisabethB

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Re: TLP Project - Lava Tube Sky Lights
« Reply #42 on: July 28, 2010, 07:05:32 pm »

ID: AMZ40037bn
Latitude: 16.0155°
Longitude: 46.5543°
Sun Angle: -76.23°
Scale: 0.50 meters / pixel
Zoom Level: 3   

ElisabethB

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Re: TLP Project - Lava Tube Sky Lights
« Reply #43 on: July 28, 2010, 07:06:46 pm »

ID: AMZ400380f
Latitude: 16.0985°
Longitude: 46.4991°
Sun Angle: -76.23°
Scale: 0.50 meters / pixel
Zoom Level: 3   

ElisabethB

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Re: TLP Project - Lava Tube Sky Lights
« Reply #44 on: July 29, 2010, 04:06:21 pm »

ID: AMZ4001lkw
Latitude: 19.9528°
Longitude: 30.4959°
Sun Angle: -58.59°
Scale: 1.55 meters / pixel
Zoom Level: 3