This used to be sand and other sediment - that's why it is called sandstone - which is a type of sedimentary rock. Sedimentary rocks are formed when pieces of rock are eroded, or worn away ...

Types of Rocks: Look for smooth pebbles, quartz, agates, or even fossilized remains. Riverbeds can surprise you with ...

Walk through any Irish city or village and you’ll be surrounded by the evidence of a long and intimate relationship between ...

Because the glacial erratics that we find in southwestern Ohio come from such a large area, they consist of a wide variety of rock types, including igneous, sedimentary, and metamorphic. These ...

Scientists study how industrial waste like slag hardens into sedimentary rocks, adversely affecting the environment but also ...

Sedimentology explores the origin, transport, deposition and diagenetic alterations of the materials that compose sediments and sedimentary rocks. Stratigraphy investigates how those types of rocks ...

This is a beginner's guide to identifying UK rock types. The guide has two main sections ... of rock samples commonly found in the United Kingdom, detailing igneous, sedimentary and metamorphic rocks ...

What Was Happening on Earth at This Time The Precambrian is the earliest of the geologic ages, which are marked by different layers of sedimentary rock. Laid down over millions of years ...

They look a bit like geodes, but they’re not exactly geodes. There are three types of rock: igneous, metamorphic, and ...

The Nadir crater is the impact site of the second asteroid, liquifying the rock and launching a tsunami into the Atlantic ...

Planetary rings don’t last forever, although they do exist for millions of years. The evidence for Earth’s possible ring is ...