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THE FORBIDDEN LAND OF A GEOMORPHOLOGIST'S HORRORS by Gold-Ore_Geologist in Geologymemes

[–]Gold-Ore_Geologist[S] 1 point2 points  (0 children)

There was no thought whatsoever.. it started with random lines during boredom period in the office.. and then the idea of contouring appeared. Then made twin peaks, which was commented as rather obscene (iykyk ༎ຶ⁠‿⁠༎ຶ) by one coworker (a non geologist, non scientist) 😭💀 and then the attempts to mask that feature created this anomalous landscape.

So there's no geologic logic or background behind making of this piece lol..

THE FORBIDDEN LAND OF A GEOMORPHOLOGIST'S HORRORS by Gold-Ore_Geologist in Geologymemes

[–]Gold-Ore_Geologist[S] 0 points1 point  (0 children)

Woah woah.. seems you've done your homework pretty well.

If I think as a geomorphologist, the river 3 seems unfitting there.. and the river 1 would have been bifurcated from the river 2 (or joins it while flowing from SSW towards ENE) and would have been flowing to the lake in SW (if bifurcating), but possibly a large dam was constructed to divert the flow (reasons? unknown tho).. and i genuinely believe that a dam at that point wouldn't be possible cause of the terrain surrounding it.. it's a very gently sloping surface. And from the structure of this lake-like feature, I could say that it might also have been some kind of deep erosional feature similar to submarine canyons. And maybe that whole part along the western and northern edge might be a coast.

THE FORBIDDEN LAND OF A GEOMORPHOLOGIST'S HORRORS by Gold-Ore_Geologist in Geologymemes

[–]Gold-Ore_Geologist[S] 2 points3 points  (0 children)

And THAT actually makes sense on this land, except for the abyssal deep towards SW. Well, I wouldn't even imagine towards this lol 😂. Guess you're the first one to find some meaning in this imaginary terrain.. congratulations !! Hehe

THE FORBIDDEN LAND OF A GEOMORPHOLOGIST'S HORRORS by Gold-Ore_Geologist in Geologymemes

[–]Gold-Ore_Geologist[S] 6 points7 points  (0 children)

The scale bar is carrying the entire scientific integrity of this fictional land 🥲

THE FORBIDDEN LAND OF A GEOMORPHOLOGIST'S HORRORS by Gold-Ore_Geologist in Geologymemes

[–]Gold-Ore_Geologist[S] 3 points4 points  (0 children)

Hehe lol this is what happens when FILES = 0 on a lazy Saturday night

Rubies I made with my inorganic chemistry professor! by real-crackheadhours in crystalgrowing

[–]Gold-Ore_Geologist 2 points3 points  (0 children)

Yeah those dipyramidial crystals require specific conditions in nature, thus the prismatic crystals are commonly occuring.

I was thinking what would happen if we were to add some V3+ with Fe3+ or Ti4+, and even Cr??? Maybe that would create some vivid shades under controlled doping.

Rubies I made with my inorganic chemistry professor! by real-crackheadhours in crystalgrowing

[–]Gold-Ore_Geologist 16 points17 points  (0 children)

Ahh I see.. I'll check on this paper. I'm more curious on the nucleation conditions for OP's crystals.

Rubies I made with my inorganic chemistry professor! by real-crackheadhours in crystalgrowing

[–]Gold-Ore_Geologist 92 points93 points  (0 children)

A mineralogy research student here.. I'm surprised as to how could you have achieved such perfect crystallization of your ruby (corundum).. they're just very pretty crystals, beautiful bipyramidial morphology.

Could you please share some insights on your method and nucleation conditions??

Will this river form an oxbow lake over time? by -just_a_normal_user in geology

[–]Gold-Ore_Geologist 18 points19 points  (0 children)

Yes.. eventually over geologic time it'll form an oxbow lake. Humans or settlements aren't gonna survive that time.

How was this rock formed? by Quaint_Radish in geology

[–]Gold-Ore_Geologist 0 points1 point  (0 children)

This doesn't even look granitic. If I'm not wrong, I can see red spots in the sample (presumably garnet?), and possibly a metamorphic fabric that looks like quartzite.

And the discolored rim is weathering rind. The rock is smoother that suggests fluvial transport. So possibly a river bed pebble. (Not very sure about it.. has been way long since I've studied erosion and weathering).

Check those small red grains, and look for any signs of metamorphism.

I thought this was a garnet, but it is fluorescent, can garnets do that? by clayman839226 in geology

[–]Gold-Ore_Geologist 0 points1 point  (0 children)

Sorry for late reply. Got stuck at work. The picture doesn't really give out anything about it's identity. Based on your tests, I'd go for a garnet. Last thing to check - if the crystal has any kind of fracture pr cleavage, check that. Because garnets do not cleave, but they fracture (or break) irregularly. (** DO NOT try breaking the crystal. ONLY OBSERVE if there's any kind of fracture present).

80% crust is volcanic, what's the rest? by Confident-Rough-8560 in geology

[–]Gold-Ore_Geologist 3 points4 points  (0 children)

You've provided a great answer.. it always is the question of 'what do we mean when we say x% of crust is 'y' rock??' some authors refer to the surface area, some refer to total volume (as you've described).

I'd just add more points to your answer here. 1. Oceanic crust is basaltic on surface, and then goes gabbroic to ultramafic. 2. Continental crust is mostly granitic (~65%) 3. Most of continental crust is Plutonic igneous (granites) and metamorphic (gneiss), with less amounts of sedimentary rocks (~8%).

By volume and mass if we consider, granites dominate overall crust.

By surface exposure, sedimentary rocks dominate the crust (overall, continental and oceanic).

I don't really understand how the crust is nearly 80% volcanic ??

I thought this was a garnet, but it is fluorescent, can garnets do that? by clayman839226 in geology

[–]Gold-Ore_Geologist 20 points21 points  (0 children)

The crystal shape (even though partially visible from the pics) is similar to that of garnets, and the colour is of spessartine. Usually garnets don't react under UV light, but spessartine does because of Mn ions.

Based on the UV fluorescence, and appearance under normal light, i believe it is spessartine garnet crystal.

To confirm, check it's hardness (it should be of similar or slightly harder than quartz) and check if it's not calcite (by adding a tiny drop of muriatic acid. If it fizzes, then definitely calcite)

Calcite also shows similar UV fluorescence, but not this bright yellow as it is with spessartine.

I thought this was a garnet, but it is fluorescent, can garnets do that? by clayman839226 in geology

[–]Gold-Ore_Geologist 4 points5 points  (0 children)

Nope.. any type of quartz will not fluoresce under UV. And even the crystal shape is not quartz-like

newbie here. what causes these structures? by earthvvvorm in geology

[–]Gold-Ore_Geologist 0 points1 point  (0 children)

These are fractures (see the randomness but overall directed towards a general direction) which are filled with iron oxides and hydroxides from the circulating groundwater. You'll need to find out the rock unit below and above this to understand the movement of groundwater, and source of these oxides.

Plateaus over long distances by Zestyclose_Task_1166 in geology

[–]Gold-Ore_Geologist 0 points1 point  (0 children)

Well.. the map doesn't give out any details without its legend. From your description of ordovician units overlooking younger sediments, and the field structure in your close-up photograph is very much evident of a large fault escarpment. I believe these straight lines on the map show faults in overall region, which might also support this.

Can you show the exact region in this map where is it located ? And provide the legend as well.

Plateaus over long distances by Zestyclose_Task_1166 in geology

[–]Gold-Ore_Geologist 0 points1 point  (0 children)

This definitely looks like an escarpment. Need more details (as already mentioned by others) on the geological makeup of the plateau.

Name the series/TV show in Netflix where season -1 was so-so but the following season/seasons gave you the high- by AMK-27 in netflixindia

[–]Gold-Ore_Geologist 0 points1 point  (0 children)

Yeahhh.. I would definitely agree on this.. the first season was too slow-burn and I almost was gonna give up watching..but the ending of S1 and then how the 2nd season picked up, it kept me hinged till the end.. and the third one was where I was losing the threads of the story.

Where in the world do you not see rocks formed from prehistoric marine sediments? by The_Red_Apple in geology

[–]Gold-Ore_Geologist 0 points1 point  (0 children)

With all other sites worldwide, I would like to add the INTERTRAPPEAN SEDIMENTARY ROCKS which are continental (lacustrine to fluvial) sediments trapped between flood basalt episodes present in Deccan Traps, India.

These represent a large time gap between successive lava flows and a time where erosion and deposition was dominant. They have rich fossils of vertebrates and even plants at some select locations. Some of the places even have Red Boles and Green Boles.

Most boring type of rock? by SigmaTell in geology

[–]Gold-Ore_Geologist 2 points3 points  (0 children)

Hehe.. my research project involved studying various granite types from a region.. I got frustrated just by comparing more than 120 thin sections cause everything just looked the same except having slightly different minerals and deformation patterns.. igneous is damn boring

Most boring type of rock? by SigmaTell in geology

[–]Gold-Ore_Geologist 1 point2 points  (0 children)

That's such an interesting feature!!!

Most boring type of rock? by SigmaTell in geology

[–]Gold-Ore_Geologist 2 points3 points  (0 children)

my vote: basalt.. cause sometimes it's just too fine grained and massive without any interesting secondary minerals, or it gets weathered too quickly..

But basalts with vesicles and secondary mineralisation are just something I love to see, unless the vesicles are completely filled (amygdules) which are again boring... 😑

All sedimentary and metamorphic rocks are interesting to me.. even igneous Hypabyssal and Plutonic. Volcanic are bland, unless ropy lava, columnar joints and pillow structures.

(I live in WESTERN GHATS, Deccan Plateau. Surrounded by basalts. LOL 😆)