Facies A body of rock with specific characteristics. Defined on the basis of colour, bedding, composition, texture, fossils and sedimentary structures. Facies Sequences A sequence of facies as the pass from one to another. The sequence can have an abrupt or erosive boundary or a hiatus. In this case there is a coarsening upward sequence … Continue reading Sedimentary Environments
Tag: Geoscience
Geological Time
The Principle of Uniformity This states that the processes operating today affecting the earth have been operating unchanged at the same rates throughout the earth’s history. Relative Time The occurrence of a geological event relative to each other. This helps in the dating of geological occurrences. It helps with the identification of a geological continuum. … Continue reading Geological Time
The Oil and Gas Story
Introduction There are three types of rock types that are studied when considering the geological environment. They are no particular order: Sedimentary Igneous Metamorphic The circumstantial evidence has suggested that hydrocarbons that are formed and deposited are strongly associated with sedimentary rocks. They are the result of altered organic material derived from microscopic plant and … Continue reading The Oil and Gas Story