Questions tagged [geology]
The science comprising the study of the rocks Earth is composed of, and the processes by which they change. Some subfields of geology are petrology, mineralogy, and geophysics.
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What are these large elevated regions in Northern Canada?
Complete newbie to any earth sciences here. Please tell me if this is the wrong stack exchange website
I was browsing around on google earth (as one does), and I noticed these "discoloured" ...
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What is the difference between basalts and andesites!
I understand that basalt is darker in color and has less silica but do not understand how these reflect the underlying minerals/mineraloids (if mineraloids are even present in these rocks)???
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Did heavy usage of water in India cause the Himalayas to form? [closed]
The idea is that human ground water consumption caused subsidence that caused the formation of India by lowering the water table unequally so that India slipped under Nepal and created the Himyalas.
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How to determine underground temperatures?
I wonder how deep does the ground stop becoming colder and begins to get warmer? Moreover, are there any maps or methods to determine this for regions with different elevations and temperatures that ...
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Is the Earth currently denser than it was millions of years ago?
The Earth has witnessed various geological processes, such as tectonic activities, sedimentation, etc, over millions of years. The accumulation of meteorites and compression of materials due to ...
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"3.5–1.75 billion years ago" or "1.75–3.5 billion years ago"?
I wrote "3.5–1.75 billion years ago" in an academic manuscript recently (referring to a period that began 3.5 billion years ago and ended 1.75 billion years ago), and a professor suggested I ...
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How is limestone dated?
I know that limestone is found in a variety of geological formations, and I thought it would be useful if some knowledgeable people weighed in on how the ages of these layers are determined.
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Will Nanga Parbat eventually become taller than Mount Everest?
It is a well-known fact that Mount Everest, a Himalayan mountain whose summit stands at an elevation of $8,848.86 \text{ m }(29,031.7\text{ ft})$ above mean sea level, is currently the tallest ...
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Is it appropriate to call trough cross-stratification a 'bedform'?
This is a somewhat inane question of semantics, but words are important in science, so I ask: is it appropriate to call trough cross-stratification a 'bedform'?
The Blatt et al (1980) definition says ...
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What useful information could an ancient "mining compass" yield?
I read here and elsewhere that
Exploratory and reconnaissance surveys are frequently made with the aid of a magnetic compass [...] Early references to the application of the magnetic compass to ...
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Possibility of naturally cut diamonds
Is there a chance that diamonds may naturally occur as any of the geometric shapes in such a way that it is naturally brilliant and cut? Obviously, I am not expecting really sophisticated cuts but ...
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hi, any ideas how to convert Rcd and Dst seismic data into SEGY?
any ideas how to convert Rcd and Dst seismic data into SEGY?
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How do these holes form?
I was casually browsing the google earth street view map today. And I noticed strange cavities in a rock wall on Henderson Island, a coral island in the South Pacific. What could have caused this to ...
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How does the caprock of aeolian landforms such as mesas, buttes and hoodoos protect the underlying soft rock?
Why do we see a bipartite cliff,i.e., a vertical top portion and a slanted bottom portion at the edge of a mesa or butte? I came to know from the internet that the top portion is the hard caprock And ...
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The total pressure / total mass of earth's atmosphere on geological time scales
In many introductory geology courses, a great deal of time is spent on the historical composition of earth's atmosphere: the great oxygenation event, oxygen maximum during the carboniferous, ups and ...
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