The convention where geologists draw certain rock layers like bricks has always confused me deeply.
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The convention where geologists draw certain rock layers like bricks has always confused me deeply. I get it's shorthand for "rock with cracks that water might flow through" ... and when you are drawing in pen it's easy to run out of ways to indicate different regions with simple patterns...but I keep thinking it's man-made.
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The convention where geologists draw certain rock layers like bricks has always confused me deeply. I get it's shorthand for "rock with cracks that water might flow through" ... and when you are drawing in pen it's easy to run out of ways to indicate different regions with simple patterns...but I keep thinking it's man-made.
@futurebird moon of cheese, earth of bricks ...
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@futurebird moon of cheese, earth of bricks ...
@futurebird
that said - I feel like this style was very common late last century but has become less common since then.this wikimedia page has 2 examples out of 40.
https://commons.wikimedia.org/wiki/Category:Hydrogeological_cross_sectionsthis one has 4 examples in the first 100.
https://commons.wikimedia.org/wiki/Category:Geological_cross_sectionsIn both cases I did not look into subcategories.
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F myrmepropagandist shared this topic
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The convention where geologists draw certain rock layers like bricks has always confused me deeply. I get it's shorthand for "rock with cracks that water might flow through" ... and when you are drawing in pen it's easy to run out of ways to indicate different regions with simple patterns...but I keep thinking it's man-made.
@futurebird lol yes
Playing with MS Paint years ago, I found it was easy to sketch natural-looking sedimentary stone. The Powder Toy has similar drawing characteristics; I used it to illustrate my own neighborhood karst
Alas, crude drawing tools don't do diagonals well.Why my basement floods by Matera_the_Mad
The Powder Toy is a desktop version of the classic 'falling sand' physics sandbox game, it simulates air pressure and velocity as well as heat!
Powder Toy (powdertoy.co.uk)
The Powder Toy
The Powder Toy is a desktop version of the classic 'falling sand' physics sandbox game, it simulates air pressure and velocity as well as heat!
Powder Toy (powdertoy.co.uk)
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The convention where geologists draw certain rock layers like bricks has always confused me deeply. I get it's shorthand for "rock with cracks that water might flow through" ... and when you are drawing in pen it's easy to run out of ways to indicate different regions with simple patterns...but I keep thinking it's man-made.
@futurebird Wait, this might be important to me because sci-art reasons. This convention doesn't have a name, does it? Any keywords to help me find more examples and info about it?
I'm thinking limestone erosion due to water, and there was a word... kartz-something...?
I'm so ignorant about geology I don't even know the words for a useful search. Any help would be really appreaciated!
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The convention where geologists draw certain rock layers like bricks has always confused me deeply. I get it's shorthand for "rock with cracks that water might flow through" ... and when you are drawing in pen it's easy to run out of ways to indicate different regions with simple patterns...but I keep thinking it's man-made.
@futurebird As a geoscientist, I have learned that the brick structure is used as a symbol for limestone to distinguish it from other units such as sandstone or mudstone on geological maps and graphic logs (alas, I am not a sedimentologist). I would never use it for an illustration like that since it's just lazy as someone already pointed out in the comments.
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@futurebird
that said - I feel like this style was very common late last century but has become less common since then.this wikimedia page has 2 examples out of 40.
https://commons.wikimedia.org/wiki/Category:Hydrogeological_cross_sectionsthis one has 4 examples in the first 100.
https://commons.wikimedia.org/wiki/Category:Geological_cross_sectionsIn both cases I did not look into subcategories.
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@llewelly
The brick like symbol for cross sections and block diagrams is for limestone and still very common. Other lithologies use different symbols.
@jaypdub @llewelly @futurebird
Thanks for giving an informative, but concise, explanation, John.
In case anyone wants a more expansive answer, here's an official summary of standard lithological (rock type) symbols:
https://ngmdb.usgs.gov/fgdc_gds/geolsymstd/fgdc-geolsym-sec37.pdf
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@jaypdub @llewelly @futurebird
Thanks for giving an informative, but concise, explanation, John.
In case anyone wants a more expansive answer, here's an official summary of standard lithological (rock type) symbols:
https://ngmdb.usgs.gov/fgdc_gds/geolsymstd/fgdc-geolsym-sec37.pdf
@oldclumsy_nowmad @jaypdub @llewelly
Thank you so much! This is just the kind of thing that I suspected must exist... but being only vaguely interested in geology I didn't know how to find it or explain it. I could tell there was some methodical meaning encoded in the "confusing bricks" choice. I'm delighted.
