The Rock Cycle is Earth's great recycling process where igneous, metamorphic, and sedimentary rocks can all be derived from and form one another. Analogous to recycling a Coke can, where an old can ...

Researchers have discovered microdiamonds in the Nishisonogi metamorphic rock formation in Nagasaki Prefecture, Japan. Microdiamonds in metamorphic rocks are important minerals because they form in ...

If you’ve ever studied geography, looked at fossils in a museum, or even looked up at a craggy cliffside or a steep mountain, you’ll know that rocks usually take millions of years to form. However, ...

Collectors of all ages have always been interested in rocks and the minerals that make them up. They come in countless shapes, sizes and colors. There are three main types of rocks: sedimentary, ...

Temperature and pressure conditions of metamorphism in the Peavy Node area in northern Michigan have been estimated from the garnet-biotite geothermometer and garnet-plagioclase-aluminosilicate-quartz ...

Sedimentary rocks are made up of pieces of older rocks (igneous, metamorphic, and sedimentary) and organic remains (shells, bone, etc.). When rocks break apart from erosion they are transported by ...

High-pressure metamorphic rocks form during subduction of Earth’s crust to mantle depths at convergent plate margins. Their exposure at the surface of Earth today provides a record of the subduction ...

Metamorphic rock is the result of the transformation of a pre-existing rock type, the protolith, in a process called metamorphism, which means "change in form". The protolith is subjected to heat and ...

Dwayne Johnson is a big Hollywood star who has been going by the name “The Rock” ever since his wrestling days. He’s been known to the world as The Rock for a long time, so it’s no surprise that a ...

a: Geological zone in western Japan. The blue-green part is the Sanbagawa belt that crosses mainland Japan. The Nishisonogi metamorphic rock was thought to belong to the same geological formation as ...