mtb-za
  • Member for 6 years, 11 months
  • Last seen more than 3 years ago
How do geologists find ore deposits?
13 votes

In addition to the above, what happens is that people look for commonalities between known deposits. So, for example, if you have a lot of gold veins in one area, and lots in another area, then you ...

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Why is continental crust less dense than oceanic?
6 votes

Thickness has nothing to do with density. The density is how much a given volume weighs. If a block of 1m × 1m × 1m weighs 60kg, and another block the same size weighs 100kg, then the second block is ...

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Database of geological group or formation exposures?
5 votes

You may also find localised geological guides, such as the Roadside Geology series. http://geology.com/store/roadside-geology.shtml has a listing. While I have not used them, I have seen them crop up ...

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How to determine if this fault is normal, sinistral?
Accepted answer
3 votes

So, the basic geological history is given. From this, the units named Bed 1, were deposited, then tilted. Bed 2 was deposited and tilted (along with Bed 1). The entire sequence was then faulted. So, ...

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Do different lavas have different volcanic volatiles associated with them?
Accepted answer
3 votes

I do not have access to the full-text, but the abstract of Giggenbach (1996)[1] suggests that The variability in the composition of volcanic gases accessible to sampling, therefore, is largely due ...

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