Rock Quality Designation (RQD) is a measure used in geotechnical engineering to assess the quality of rock core samples. It is calculated by measuring the length of intact pieces of rock in a core sample that are longer than 10 ...

Porosity Definition Porosity refers to the amount of empty space or voids within a material or substance. It is often expressed as a percentage of the total volume of the material, with the remaining percentage being occupied by the solid ...

Geologists use a wide range of tools and techniques to study the Earth’s physical properties, composition, and structure. Some of the most common tools used by geologists include: Geologists use a variety of specialized tools and equipment to study and ...

Dolerite is a type of igneous rock that forms through the cooling and solidification of magma. It is a dark-colored rock that typically contains plagioclase feldspar, pyroxene, and amphibole minerals. The name “dolerite” comes from the Greek words “dolos” meaning ...

The mineralogical, chemical, and structural adjustment of solid rocks to physical and chemical conditions which have generally been imposed at depth below the surface zones of weathering and cementation, and which differ from the conditions under which the rocks in ...

Minerals are homogeneous, naturally occurring, inorganic solids that have a definite crystalline structure and chemical composition. In 1995, the World Minerals Organization put another definition saying that “a mineral is an element or a chemical compound that is naturally crystalline ...

An unconformity is a surface of erosion or non-deposition that separates two rock units that have different ages. It represents a time gap in the geologic record, and it occurs when sedimentary rocks are tilted, uplifted, and eroded before new ...

What is Volcano I heard about the volcano before ???….We all see volcanoes in movies and news, but did you ask yourself why or how do they happen? On our trip today, we will explore the volcano and see its ...