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• General Geology Courses: Comprehensive, Also Great, Concise, General Interest
• Specific Topics: Types of Rocks, Minerals and Crystals, Resources, Energy.

Ever marveled at towering mountains, vast canyons, or intricate rock formations and pondered their creation? Ever found yourself curious about what the world was like millions of years ago?

If you’re eager to delve into geology, whether for personal interest or a potential career in the resource field, this guide is for you. We’ve done the legwork, using Class Central, a search engine for online courses, and other sites to identify the top online geology courses. With over 400 geology courses and more than 4,300 people following Geology in our platform, we’ve collated ratings and reviews to narrow down the best choices for you.

I am Australian. While some people might think of Australia as boring geologically (no active volcanoes, few earthquakes, no glaciers, and low mountains), there is an array of features on show in this continent. A few years ago, I visited Uluru, the amazing monolith rising up from the flat center of Australia. Learning geology has helped me understand the processes that created this feature over millions of years.

Click on the shortcuts for more details:

• Top Picks
• What is Geology?
• Courses Overview
• Why You Should Trust Us
• How We Made Our Picks and Tested Them

Here are our Top Picks, Click on a Course for Details

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What is Geology?

Geology is the bedrock of our understanding of Earth’s past and present. It encompasses concepts from plate tectonics and the evolution of life, to past Earth climates. It also transcends various scientific domains, linking to mineralogy, hydrology, chemistry, physics, and even astronomy. As you venture deeper into geology, you’ll realize its pivotal role in mineral and energy exploration. Understanding these interconnections is not only intriguing, but can also open career paths in the resource industry and beyond.

Courses Overview

• All courses are free or free to audit
• 5 courses offer a certificate of completion (two certificates are free)
• Courses in this guide have more than 600K enrollments and views
• These courses are offered via 5 different providers.

Best Comprehensive Geology Course (University of Illinois)

Planet Earth…and You! is a professionally produced course brimming with geological information, focusing on earthquakes, plate tectonics, volcanoes, rocks and minerals, and energy. It has some of the most interesting assignments I’ve ever seen in an online course. You can look at features on Google Earth, discover the epicenter of an earthquake from seismology data, and find out how fast the tectonic plate you are on is moving.

“Great learning experience. High quality material and presentation.” – Mike S., Class Central learner.

Also Great Comprehensive Geology Course (Earth and Space Sciences X)

If you’re a geology beginner, Introduction to Geology will teach you about plate tectonics, minerals, rocks, volcanoes, earthquakes, soil, the ocean floor, mountains, and more.

“This is the most articulate and comprehensive introduction to geology that I have seen anywhere.” – @arbimoradian, YouTube learner.

Best Short Geology Course (Udemy)

If you just want a quick introduction to geology, consider DJ Lake’s Geology: Earth Science for Everyone. It’s packed with clear explanations of complex scientific concepts in under 3 hours of videos, starting with Earth’s early history. The course focuses on big-picture ideas rather than rock and mineral identification, covering topics such as the formation of mountains, the existence of oceans, crystals, the age of the Earth, and the impact of geology on landscapes and natural events.

“…I couldn’t be more satisfied with what I learned…” –  Robert Amell, Class Central learner.

Best General Interest Course Relating to Geology (University of Alberta)

Mountains 101 teaches plenty of geology including how mountains are formed and degraded, glaciers, and the water cycle, alongside other subject areas including ecology, environmental science, and climate change. It even touches on cultural relationships with mountains around the world. And if you’re interested in hiking in the mountains, watch the weekly Tech Tips videos that cover hints from clothing and footwear to camping gear and backpacks. A well-deserving member of Class Central’s Best Courses of All Time list.

“… after watching the course’s first video, I was hooked. First of all, the course is nothing like any other MOOC I have ever seen.” – Fabio Dantas, Class Central learner.

Best Course About Types of Rocks with Free Certificate (The Open University)

If you just want to learn about rocks and minerals without a lot of detail about Earth’s geological history, these two text-based courses offered via OpenLearn are an excellent overview. They also offer a free Statement of Participation. The time commitment of 10 hours and 14 hours respectively is generous. I easily completed both courses within a couple of days.

Practising science: Reading the rocks and ecology explores many different types of igneous, sedimentary, and metamorphic rocks and how they were formed, as well as briefly touching on ecology and fossils.

“This course is very informative, I learned so much.” – Ed Bryan Malmis, OpenLearn Learner.

Best Course About Minerals and Crystals with Free Certificate (The Open University)

Minerals and the crystalline state explains the structure and formation of mineral crystals and gives learners access to a marvelous tool called The Digital Geology Kit that features images and properties of minerals, rocks, and fossils. Some parts may be tricky if you have zero knowledge of chemistry, but the concepts are explained well.

“This is the best reference about mineralogy I have read by far.” – Ed Bryan Malmis, OpenLearn Learner.

Best Course Relating Geology to Resources (NPTEL)

Mining and industry are big business in the 21st century, so if you’re looking for a course that discusses not only natural geological structures, but also covers many aspects of subsurface exploration, engineering properties of soil and rocks, and groundwater issues, look no further than Engineering Geology. The final lecture teaches us how to identify various rocks and minerals.

“This was a very immersive and interesting course…” – Rayan Adi, Class Central learner.

Best Course Relating Geology to Energy (Stanford)

Geoscientists, engineers, and research scientists interested in the petroleum or geothermal industry may benefit from this interdisciplinary course. Reservoir Geomechanics is created by StanfordOnline and available via edX. Learn about rock mechanics, structural geology, earthquake seismology, petroleum engineering, and geomechanical challenges in oil and gas exploitation. The course is classified as beginner-level, but you will need some basic geological understanding to get the most benefit.

“I definitely recommend this course to graduate students, post-docs, young faculty members, and professionals in geotechnical, geophysical, and petroleum engineering fields and to those from other disciplines who want to understand more about issues in fossil fuel extraction from design point of view.” – Shahrzad Roshankhah, Class Central learner.

Why You Should Trust Us

Class Central, a Tripadvisor for online education, has helped 60 million learners find their next course. We’ve been combing through online education for more than a decade to aggregate a catalog of over 200,000 online courses and 200,000 reviews written by our users. And we’re online learners ourselves: combined, the Class Central team has completed over 400 online courses, including online degrees.

I’ve personally completed over 200 online courses in a variety of topics including geology.

How We Made Our Picks and Tested Them

Trying to find “the best” can be daunting, even for those of us who live and breathe online courses. Here’s how I approached this task.

First, I combed through Class Central’s Catalog and the internet to find a variety of free and paid open courses, some with certificates. You don’t need to enroll in a university to learn about geology.

I extracted information from course syllabi and reviews, and compiled their ratings, leveraging the Class Central database with its thousands of course ratings and reviews written by our users as well as available course provider ratings. I watched some course videos to sample courses I hadn’t already taken.

Then, I defined the scope for these recommendations. A geology course can cover various topics. I chose top courses from a range of sub-fields.

Ultimately, I used a combination of data and my own judgment to make these picks. I’m confident these recommendations will be a good way to learn geology.