Geology describes the structure of the Earth on and beneath its surface and the processes that have shaped that structure. Geologists study the mineralogical composition of rocks in order to get insight …

Dec 15, 2025 · Geologic history provides a conceptual framework and overview of the evolution of the Earth. An early development of the subject was stratigraphy, the study of order and sequence in …

4 days ago · New USGS research shows how intense solar activity and large geomagnetic storms could impact much of the country. Part of the U.S. Department of the Interior, the USGS began in 1879 to …

Get the tools, confidence, and connections you need to advance your geoscience career. Advances rigorous scientific discovery to solve Earth’s challenges by creating opportunities to share and …

Nov 23, 2025 · Geology is the scientific study of the Earth, its composition, structure, processes, and history. It is a broad field that encompasses a wide range of topics related to the Earth’s physical and …

The meaning of GEOLOGICAL is of, relating to, or based on geology.

Geologists study Earth processes: Many processes such as landslides, earthquakes, floods, and volcanic eruptions can be hazardous to people. Geologists work to understand these processes well …

pl. ge·ol·o·gies 1. The scientific study of the origin, history, and structure of the earth. 2. The structure of a specific region of the earth's crust....

GEOLOGICAL definition: 1. relating to geology, or to the geology of a particular area or place: 2. relating to geology…. Learn more.

Geologists study the evidence that they see around them, but in most cases, they are observing the results of processes that happened thousands, millions, and even billions of years in the past.