Matijevic Hill first survey, Sol 3057 - 3152 |
Matijevic Hill first survey, Sol 3057 - 3152 |
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![]() The Poet Dude ![]() ![]() ![]() ![]() Group: Moderator Posts: 5551 Joined: 15-March 04 From: Kendal, Cumbria, UK Member No.: 60 ![]() |
Oooooh, you're pretty...
Might be here a while, you think? Edit: better colours on this amended version, I think... http://twitpic.com/apn9s1/full -------------------- |
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Senior Member ![]() ![]() ![]() ![]() Group: Members Posts: 2998 Joined: 30-October 04 Member No.: 105 ![]() |
QUOTE (Gladstoner) Blueberries concentrated in a linear outcrop (so it appears) made me think of a clastic dike. Indeed, this fits very well with the observed textures of the bedding, etc, at this outcrop.A quick reference to clastic dikes: http://en.wikipedia.org/wiki/Clastic_dike They can be relatively benign, like from fluidized injection from the weight of overlying strata, or by the sweeping of sediment into open fractures (like dessication cracks or the Anatolia lineations) or catastrophically, related to impact processes: http://en.wikipedia.org/wiki/Upheaval_Dome Your image is labeled "bonner clastic dike"-- what location/formatin is that? "Bonner" makes me think "Idaho". From yesterday's color Pancams, the Blue of these spherules suggests to me more of an impact melt instead of an hematite concretion. FWIW. --Bill -------------------- |
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#3
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![]() Member ![]() ![]() ![]() Group: Members Posts: 715 Joined: 3-January 08 Member No.: 3995 ![]() |
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