geology

Contact Metamorphism and Regional Metamorphism are two main types of metamorphism where rocks are altered due to changes in temperature, p...

High/Low Sulphidation Epithermal Silver/Gold Copper Porphyry Deposits

Minor folds and position on a major fold.

Slickensides on a normal fault with a slight left-lateral component, Plaza Blanca, near Abiquiu, New Mexico.

Oolitic calcarenite and micritic calclutite contact. Helena fm., grinnel glacier cirque, Montana. Example of soft sediment deformation. This looks like a loading structure – soft sediment deformation due to a density inversion – perhaps when some high-energy event (a storm?) dumped a bunch of relatively coarse ooids atop some squishy micrite mud. The upper oolitic layer glooped down into the micritic lower layer, creating this convoluted contact. #ScienzeGeologichePage

Of the most spectacular things I have seen in Oman.

Copper Porphyry Deposit Models from Porphyry Copper Assessment of Northeast Asia—Far East Russia and Northeasternmost China http://pubs.usgs.gov/sir/2010/5090/w/

Folding at Cannon Beach, Oregon.

visitheworld - 287 results for australia

Equiangular Fig. 1. Stereographic projection of an ESE-dipping plane. Stereographic projection is about representing planar and linear features in a two-dimensional diagram. The orientation of a plane is represented by imagining the plane to pass through the centre of a sphere (Fig. 1a). The line of intersection between the plane and the sphere will then represent a circle, and this circle is formally known as a great circle. Except for the field of crystallography, where upper-hemisphere...

Contact Metamorphism and Regional Metamorphism are two main types of metamorphism where rocks are altered due to changes in temperature, p...

aplite dyke intruded in a cm-scale shear zone within a monzogranite. (Tauern window, Sud-Tyrol, Eastern Alps, Italy)

Scour marks and Flute casts are scours dug into soft, fine sediment which typically get filled by an overlying bed (hence the name cast).