orogenic

The hydrothermal fluids that precipitate out gold in orogenic deposits are closer to 100,000 kg per 100 million liters.

Subduction of the Pacific Plate beneath the North American Plate generates substantial orogenic forces.

However, the majority of orogenic gold deposits are linked to fluids that escaped during wide-spread regional metamorhpism, as opposed to volcanic activity.

Maintenance of this land is peculiarly dependent upon seismic equilibrium, and by an imperious law of nature, none but the orogenic can establish such.

Are there places in Montana where orogenic lifting created dry land?

Most major gold deposits are related to orogenic events (mountain building).

For example, there was one a theory that tidal cycles controlled the climate but technical discoveries in the 1950s and 1960s pointed towards infrared-absorbing gases (mainly CO2) being the main factor, and plate tectonics came along and overturned the orogenic consensus.

While it is widely accepted that portions of the Rocky Mountains were once underwater, and were pushed up via orogenic processes, it is also widely accepted that the vast majority of the central United States spent a significant amount of time underwater due to a higher global sea level.

As a geologist with 2 degrees and a lot of passion in the subject, I’ve never heard of lithospheric drip related to orogenic dips until now, but I love it and kick myself for not questioning the over simplicity of typical thought around lower crust processes enough.

We rule, therefore, that though they bear some resemblance to we of good and wholesome lineage, and though they must be managed with kind hand to the benefit of both bond and free, any degree of orogenic ability must be assumed to negate its corresponding personhood.

Since this trough only covers the western 1/4 or so of Montana[2], I think it would be safe to say that, on average, a shark tooth found in Montana was not found in an area of orogenic lifting, thus was likely deposited there by a shark, or something higher on the food chain than a shark, during a period in which the sea levels were much higher than they are today.

Apparently now it also means "a mineral of the basaltic and orogenic variety, typically occurring in white phosphates and blue crystalline crystals" - I love that the blue crystals are crystalline too!

Orogenic gold deposits form under high pressures when tectonic plates collide, creating deep faults and shear zones and causign tons of hydrothermal fluid (at 200-450C) to penetrate those new cracks and dissolve the gold contained in them before carrying it all upwards.