Questions tagged [mountains]

Questions regarding large land masses that reach high above the surrounding terrain, usually forming a peak.

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Geology of the San Gabriel mountains in the Angeles national forest - rock types

I'm not a geologist, I am a hiker. And after many hikes in California's Sierra Nevada and Utah's red country I figured it would be great to learn some geology and I'm just posting this question to see ...
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2 votes
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67 views

Why are the Himalayan rivers highly tortuous in the mountain reaches?

"In the Himalayan reaches, the course of these rivers is highly tortuous, but over the Plains they display a strong meandering tendency and shift their courses frequently." This is what I ...
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Does the collision of India influence the geology and geography of some of the other mountains of Asia, or just the Himalayas and Tibet?

This here is a nice and lovely map of Asia. Note that the teardrop-shaped Tibetan Plateau dominates the map, and we have India to thank. For the last 50 million years, it has been pushing upwards, ...
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4 votes
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Do warm-season Foehn winds occur in the Pacific Northwest?

Over the last 30 years, Foehn winds have led to wildfires affecting densely populated areas of the California coast. They're called Diablo winds in the north, and Santa Ana winds in the south. ...
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1 vote
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184 views

Igneous and Sedimentary Rocks' Susceptibility to landslide

Which is more susceptible to landslide based on lithology compared to one another? Granite, Conglomerate, Sandstone, Mudstone I've been tasked to create a hazard map and was given a Geologic Map, ...
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4 votes
1 answer
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Is there really less diurnal temperature variation in the mountains than at sea level?

I live in the Los Angeles area, at sea level. Nearby we have tall mountains where I like to go hiking. I've noticed something strange about the NOAA forecasts, which is that the forecasts in the ...
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-2 votes
1 answer
158 views

Why doesn't one build pressurized camps at Mount Everest? [closed]

Why aren't permanently pressurized camps being built at Everest and any 23,000'+ mountain, and perhaps a pressurized enclosed platform at the very summit, to no longer have to bother about altitude ...
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What is the area of prominient peaks

https://en.wikipedia.org/wiki/Matterhorn#/media/File:On_the_summit.jpg shows a climber on top of Matterhorn.It really looks like the area is quite small maybe 2 m^2. What is the typical area of ...
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3 votes
2 answers
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When did the proto-Himalayas become non-volcanic?

In the normal course of events, when continents move toward each other, at least one coast will be associated with a subduction zone and corresponding volcanic activity. When the Indian subcontinent ...
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Water flows under the headwater and soil liquefaction has formed

A retaining wall 40 cm thick with variable height (thin-walled corner) is being built in the mountainous area. At the time of the geotechnical survey and design, there was no reservoir next to the ...
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5 votes
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How can we know the past height of mountains?

In Feynman Lectures on Physics Volume I, Feynman talks about the relation between Physics and Geology. He says “Mountains are no lower today, on the average, than they were in the past”. Through what ...
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How do the Andes get so high?

I'm interested in the limiting factors on the height of mountains. There is a very good explanation at https://www.quora.com/How-tall-can-a-mountain-become-on-Earth-Neil-deGrasse-Tyson-says-Mount-...
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Where can I find a list of mountain chains on the Earth?

I want to make an app for smartphones that lists the mountain chains of the world. Where can I find a list of all mountain chains that are presently outspread on the Earth?
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4 votes
1 answer
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What will happen to the Indian plate after it slides under the Eurasian Plate?

What will happen if the Indian Plate is done sliding under the Eurasian plate? I hypothesied some possible answers. Tell me the answer and if my hypothesis is not correct. Most likely to least. It ...
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3 votes
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Why the difference between Italian coastlines and mountain ranges?

Italy’s relatively straight, parallel coastlines in the main part of the “boot” seem surprising given how the Apennines snake through it, from one side to the other and back. Don’t coastlines usually ...
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Is there a physical limit to the heights of mountains? [duplicate]

I am reading a fantasy novel where there is a mountain range where the average mountain height is 10 miles, so some higher some lower, but all extremely high. This got me wondering if such a mountain ...
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3 votes
1 answer
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How to properly distinguish a transversal valley from a longitudinal valley?

I'm confused about how to distinguish the two. Prior to making this question. I've read the wikipedia entry on the subject but it mentions that for example a transverse valley makes 90 degrees with ...
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1 vote
1 answer
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Terracing in Mahad

my first time here! I was going down the rabbit hole after watching a video on YouTube that made me want to read about it on Wikipedia. It led me to this Picture: (View from Varandha Pass near Mahad ...
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2 answers
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Are marine fossils in the mountain happens due to lower sea levels?

https://9gag.com/gag/aBme0M2 This one says it is I am not sure whether to ask this in geology or biology. How does marine fossils show up in mountains?
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1 vote
1 answer
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How did Mount Evans become a mountain?

Multiple websites state that the mountain, which is in Colorado, was formed by an intrusion of magma about 1.4 billion years ago, forming a batholith. On the other hand, the rocky mountains are said ...
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26 votes
3 answers
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Why is Olympus Mons the largest volcano in the whole solar system?

Why is it that the volcanoes found in the Tharsis Montes region near the Martian equator, (one of which is Olympus Mons) so much larger than those found on Earth. In comparison, Hawaii's Mauna Loa, ...
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5 votes
2 answers
410 views

How do mountain springs get their water?

I am curious how do mountain springs get their water. The water flowing from them eventually forms rivers. Is it only from rain and snow? Or does water also come from underground-below the mountain (...
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5 votes
1 answer
239 views

Could the speed in which the plate is moving affect how quickly mountains rise?

In an episode of History Channel's How the Earth Was Made, there was a remark when India left the rest of Gondwana 80 million years ago only to collide with mainland Asia 50.5 million years ago. The ...
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3 votes
1 answer
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How Old Are the Verkhoyansk Mountains in Northeastern Russia?

The multi-brown "hand" at the middle of this image is the Verkhoyansk Mountain Range in northeastern Russia. The best information I got regarding its age is simply "Cretaceous". ...
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1 answer
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Why are there no mountains higher than ~10 km? [duplicate]

Mars have several mountains above 10 km, with the highest being around 22 km (full list for Solar System here). Same for Io, Jupiter's moon. In contrast, the Earth has no mountain higher than 10.2 km (...
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1 answer
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Cloud Formations Near Capetown

Why do clouds form a 'tablecloth' which exactly fits the top of Table Mountain near Capetown, South Africa? Something about the table top tailors the clouds to fit it exactly. The thickness is smooth ...
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-1 votes
1 answer
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Volcanism and Earthquakes in Borneo [closed]

Mount Kinabalu is a 13,400 foot mountain in North Borneo formed by volcanism about ten million years ago. What caused this volcanism, why has volcanism ceased in Borneo, and what was the cause of the ...
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2 votes
3 answers
209 views

Temperate Rainforests

I have heard that the Appalachian Mountains is qualified as a temperate rainforest. What qualifies a temperate rainforest and what makes the Appalachian Mountains a temperate rainforest?
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5 votes
2 answers
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Does erosion make mountains become higher?

Recently at the American Museum of Natural History in New York, I saw a display set that claimed erosion makes mountains rise higher, counterintuitively. The explanation was that the material removed ...
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6 votes
3 answers
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What is the impact of divergent tectonic plates on old mountain ranges?

I found this question, which is similar to what I'm wondering, but my question is slightly different: What happens if a new divergent boundary forms in a way that bisects a mountain range, especially ...
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2 votes
2 answers
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How do fold mountains form?

I know mountains form due to the collision of tectonic plates. But how does such a slow collision have such great impact as to create huge mountains. Is there any intuitive explanation for this?
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1 vote
1 answer
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Precipitation and Elevation

Does precipitation increase or decrease as elevation increases? Because I heard that in the mountains they get more precipitation due to the orographic effect and how the mountains drain the moisture ...
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1 vote
1 answer
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Thunderstorms in Mountains

When you’re in the mountains for example like in the Appalachian Mountains, is thunder heard more easily from further away in the mountains rather than if you aren’t in the mountains?
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0 votes
2 answers
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Height of Everest from base to top

It's relatively well known that Everest is the highest mountain above sea level, and that Mauna Kea in Hawaii is the tallest mountain from base to top. But how tall is Everest from base to top? Or to ...
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5 votes
4 answers
630 views

Are the cores of every mountain range igneous?

Every volcano is a mountain, but not every mountain is a volcano. Still, it strikes me that--at least for the mountain ranges I can think of in this moment--they all seem to have igneous cores. Is ...
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4 votes
1 answer
215 views

Are the Olympic Mountains (in Washington state) geologically unique?

So it is my understanding the Washington's Olympic Mountains are basaltic mountains. The reason is that they formed from the upthrust of Ocean crust rather than continental crust as the Farallon plate ...
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1 vote
1 answer
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What is the History of the Brooks Range?

This here is a map of the Brooks Range in northern Alaska: As you can see, it is an inland range shaped in a downward curve. Why is that? What is the history of the uplift of the Brooks Range? How ...
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6 votes
1 answer
887 views

Does subduction of continental crust happen at continental-continental convergent boundaries?

What exactly happens at a continental-continental (cc) convergent boundary? I read myself through the web for the last few days and what I came up with is that such a boundary will start as an oceanic-...
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5 votes
0 answers
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How high could snow form on a mountain?

I was reminded recently of a moment in the Eragon books where the main characters see a "tall" mountain range, and then after a minute realize that the white sky stretching up above them is just ...
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6 votes
1 answer
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Which mountains (or hills) are visible from both Boston and Rhode Island?

In the description of the Norse exploration of America, there are two places mentioned, "Hop" and "Straumfjord", with some relationship to the same mountains. E.g. The finding of Wineland the Good, p....
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1 vote
1 answer
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How to figure the MODIS snow cover against different elevation zones?

I am working on MOD10C2 (8days snow cover), when I clip the MODIS snow cover against different zones of elevation the results was against general trend .i.e. the higher elevation was showing lower ...
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5 votes
4 answers
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Why are the mountains predominately grey or dark brown?

Observing many photos of mountains one can assume that most of the mountains are grey or brown. See also the mountain article at Wikipedia. There are however several ways a mountain can form, which ...
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2 votes
1 answer
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what is the best way to detect spatial and temporal pattern of precipitation in mountainous region?

The study area rang from 500 to 8000 m above ground and distributed into 4 elevation classes, above 5000,4-5000, 3-4000, below 3000 m above ground. This region has different climate zone/precipitation ...
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3 votes
0 answers
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Why is the night very bright in the Himalayas?

Some years ago I had the chance to climb the Himalayas. Not the Everest of course, but the Annapurna Base Camp which is about 4km above sea level. During the night of the stay I went out to do some ...
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12 votes
1 answer
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Why is the diurnal temperature range on the Cascade volcanoes so small?

Ski-mountaineering in the Pacific Northwest I am frustrated that the snow pack isn't refreezing at night. There is about a 20F difference between the day and night temperatures in Seattle. Looking at ...
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4 votes
0 answers
440 views

Is the sun brighter at higher altitudes?

I was wondering since UV index is higher as elevation increases, is the brightness of the sun changing as elevation increases?
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4 votes
0 answers
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The coloration of the Kopet Dag Mountains

Why are the Kopet Dag Mountains (on the border between Iran and Turkmenistan) coloured much like the Bulgarian flag? [Link to satellite imagery in Google Maps] (Location is 37.548903 North, 59.033423 ...
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2 votes
1 answer
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What did tunnel digging teach us about the formation of chains of mountains?

Since tunnelling is like making a giant horizontal core sample, what did the analysis of the extracted rocks teach us? Is the inside homogeneous or layered, are there "deformations", etc?
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9 votes
1 answer
2k views

Volcanoes in the Alps and Himalayas and the subduction of Tethys Sea

Geologist have theorized that the Tethys Sea subducted under Eurasian plates. But where are the volcanoes that would have resulted due to this? Where are the volcanoes in the Alps and the Himalayas?
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8 votes
1 answer
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How did the Ural mountains form?

A nice picture for "how mountains formed" on Earth is due to the motion of tectonic plates. As the plates crash together, mountains may get "pushed upwards". However, a quick look at a map of the ...
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