Who was Georgius Agricola?
Georgius Agricola, whose real name was Georg Bauer, was a German scholar and scientist who is often considered one of the founding figures of...
Stratigraphy
Stratigraphy is a branch of geology to description of rock or interpretation geologic time scale.It provides of geologic history of strata. Stratigraphic studies primarily...
How old is the science of geology?
Although the science of geology as we know it today is a relatively young field, insightful observations of Earth processes were made as...
What are some subdivisions of geology?
Geology is a vast field, stretching from paleontology to mineralogy. It is easy to see why, since there are so many features and processes...
What is Geology
Geology is the study of the Earth. Like so many scientific words, "geology" is constructed from root words dating back to ancient times: geo comes from the Creek word meaning "the Earth"; it is a prefix used in other related fields, too, such as geography, geodesy, and geophysics. The alogy suffix comes from the Creek logos, meaning "discussion," and is roughly translated as "the study of."
Types of Maps
Projections
Because the shape of the world is spherical, it is difficult to represent it on a plain paper. Cartographers use projections to make...
Latitude and Longitude
Geographic coordinate system
The representation of each place on the Earth by numbers and symbols is called the geographical coordinate system.The science of mapmaking...
Physical Properties of Minerals
Minerals are naturally occurring inorganic solid substances that have a defined chemical composition and a crystalline structure. They exhibit various physical properties that can...
Unconformities
An unconformity is contact between two rock units.Unconformities are typically buried erosional surfaces that can represent a break in the geologic record of hundreds of millions of years or more. It it called an unconformity because the ages of the layers of rock that are abutting each other are discontinuous at the unconformity. An expected age of layer or layers of rock is/are missing due to the erosion; and, some period in geologic time is not represented.
Plate Tectonics
Plate tectonics is a scientific theory that explains the movements and behaviors of the Earth's lithosphere, which is composed of the crust and uppermost...
Structure of Earth
The Earth's structure is a fascinating and complex arrangement of layers that make up our planet's interior. Understanding this structure is crucial for geologists...
Optical Properties of Minerals
Study of how light passes through thin sections – rock cut and polished to about 0.3 mm thickness
Use properties of light absorption and propogation through a mineral à affected by atomic arrangement and composition
Learn the properties of light associated with techniques governing the use of a petrographic microscope