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Geology Forum for Geologists

feb3

Asked: 2 weeks agoIn: Mineralogy

'Green' conglomerate rock

Hi, would anyone by chance know what is the conglomerate in the attached picture? Any additional information regarding notable minerals and origin is warmley welcomed. Regards

GeologyHub

Asked: 3 weeks agoIn: Tectonics

What geological processes contribute to the formation of the Earth's tectonic plates, and how do these plates affect the planet's surface and ecosystems over time?

steve volosevich

Asked: 4 weeks agoIn: Planetary geology

Gravitational effects

Does the gravitational pull of the moon contribute to earths active geology?Earths molten interior should be effected just as the tides are by the gravitational pull of the moon.

Geology Hub

Asked: 1 month agoIn: Geology

Why should the movement of Fe and Ni in the outer core produce earth magnetic field? Fe and Ni form a neutral metallic compound, made of ions as well as electrons.

GeologyHub

Asked: 3 months agoIn: Geology

How can I determine the types of iron and titanium oxides and sulfides?

Akua Bempomaa

Asked: 3 months agoIn: Geochemistry

Geochemistry of soils

Geology Hub

Asked: 4 months agoIn: Geology

Explain the criteria that can be used to differentiate between foliation and lineation of a rock?

Geology Hub

Asked: 4 months agoIn: Paleontology

How do paleontologists know where to split a rock to get the perfect fossil?

Geology Hub

Asked: 4 months agoIn: Tectonics

At what general or typical angle, and how deep, do subducting tectonic plates generally fall underneath the tectonics plate they are converging with?

ioannap

Asked: 4 months agoIn: Geology

Why does the temperature change faster in some countries? and more

Hi! Im working on a uni project on data journalism. Im trying to study the surface temperature change and extreme weather events. I have some unanswered questions i would like to ask someone who has the knowledge. my data ...

ljlambert99

Asked: 4 months agoIn: Geology

Unknown, Flint, or Obsidian

I found this amazing rock out in the middle of a field on my farm. It looks and feels like flint and or obsidian, it also looks a little bit fossilized on 2 sides of it. Any help ...

GeologyHub

Asked: 5 months agoIn: Geomorphology

Mountains erode over time. The Appalachians are a good example of this. At what point do mountains and mountain ranges stop being considered mountains?

Raja khawar

Asked: 5 months agoIn: Tectonics

How does regional rifting like the East African Rift and the Rio Grand Rift affect plate motion as a whole?

Raja khawar

Asked: 5 months agoIn: Mineralogy

Does slate come from volcanoes

Raja khawar

Asked: 5 months agoIn: Geomorphology

What is the difference between plains, mountains, and plateaux?

Raja khawar

Asked: 5 months agoIn: Geology

Isn’t it possible that when a large dam is created that the weight from the water could cause a weak spot in the crust to fracture or fail and if a large void is beneath it that it could be catalyst for earthquake, eruptions, tsunamis or the end?

GeologyHub

Asked: 6 months agoIn: Mining geology

Does finding hematite on top of the ground an indicator for placer gold? Also white bleached like rocks small to large mostly rounded in same area.

GeologyHub

Asked: 6 months agoIn: Geology

What is the relationship of sedimentary rock and structure with a depositional environment?

GeologyHub

Asked: 6 months agoIn: Engineering geology

What is the difference between sand grains on a beach and sand grains in a desert?

mack- mann

Asked: 6 months agoIn: Petrology

Igneous Rock clasification

Using the Igneous classification chart according to Silica content, would it be correct if a rock has 50% Silica then the components would be about 8% Olivine, 77% Pyroxene, and about 15% Calcium Plagioclase? Likewise if a rock has 45% ...

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