A richly illustrated, open-access introductory geology textbook by Karla Panchuk, adapted from Steven Earle’s work, covering foundational topics such as rocks, minerals, plate tectonics, earthquakes, volcanoes, mass wasting, climate change, and planetary geology, with a strong emphasis on examples from Western Canada.

An online, freely available introductory geology textbook hosted by OpenGeology.org, offering foundational geology content in an accessible format.

A comprehensive MOOC on India’s UGC-MOOCs (SWAYAM) platform, covering both physical and structural geology—with modules on Earth’s formation, layers, mineral weathering, seismic activity, volcanoes, and structural analysis such as folds, faults, and stereographic projections.

An open-access, peer-reviewed physical geology textbook by Steven Earle hosted on the LibreTexts platform, offering extensive coverage of fundamental geologic principles and processes.

An undergraduate-level MIT OCW course in geology (Fall 2013) taught by Professors Taylor Perron and Oliver Jagoutz, complete with downloadable lecture notes and slides exploring Earth’s origin, minerals, rocks, tectonics, earthquakes, climate history, and planetary geology.

A structured online course offered via India’s UGC-MOOCs (SWAYAM) platform, this program dives into the fundamentals of crystallography and mineralogy—covering crystal structures, lattice systems, symmetry operations, mineral identification, and classification.

An open-access textbook on mineralogy by Perkins and collaborators, hosted on the LibreTexts platform, offering an in-depth exploration of mineral properties, crystal chemistry, morphology, optical behavior, and identification techniques grounded in modern mineralogical science.

An open-access textbook hosted on the LibreTexts platform by Johnson and Liu, offering a detailed introduction to petrology—focusing on the formation, classification, and composition of igneous, metamorphic, and sedimentary rocks, along with processes governing their evolution.

An undergraduate-level MIT OCW course from Fall 2005, this petrology class features comprehensive lecture notes covering igneous, metamorphic, and sedimentary rock systems, the mechanisms of rock formation, textural analysis, and tectonic context of rock genesis.

An online course offered by India’s UGC-MOOCs (SWAYAM) platform focusing on metamorphic petrology, this MOOC explores the processes that drive metamorphism, mineralogical transformations under varying pressure-temperature (P–T) conditions, phase equilibria, and techniques used to characterize metamorphic rocks.

An open-access textbook hosted on the LibreTexts platform by Johnson and Liu, this resource provides a comprehensive introduction to petrology—including discussions on the origin, classification, and composition of igneous, sedimentary, and metamorphic rocks, as well as the processes that influence their formation and evolution.

An undergraduate-level course from MIT’s OpenCourseWare (Fall 2005), this petrology class features detailed lecture notes on igneous, metamorphic, and sedimentary rock systems, emphasizing rock textures, formation mechanisms, geochemical processes, and tectonic settings.

An open-access, long-form textbook collection within the LibreTexts platform, this resource offers a thorough exploration of sedimentology—including the processes of sediment transport and deposition, classification of sediment types, stratigraphy, sedimentary structures, and basin analysis.

An undergraduate course from MIT OpenCourseWare (Fall 2004), this module provides comprehensive lecture notes on sedimentary geology, covering foundational topics like depositional environments, sedimentary facies, sequence stratigraphy, and the interpretation of Earth's sedimentary record.

A more recent iteration of MIT’s undergraduate-based sedimentary geology course (Spring 2007), this version includes revised lecture notes and materials that reflect updated examples, case studies, and possibly enhanced structure of sedimentary processes and interpretations.

An advanced 12-week NPTEL/SWAYAM course taught by Prof. Saibal Gupta (IIT Kharagpur), tailored for M.Sc. and Ph.D. students in geology and geophysics (with final-year undergraduates also welcome). The course offers an in-depth exploration of Earth's dynamic processes, emphasizing plate tectonics, the forces and kinematics behind plate movements, heat transfer driving these processes, and diverse tectonic regimes with their geodynamic behaviors.

A comprehensive MOOC available via UGC-MOOCs (SWAYAM), covering both physical and structural geology—topics include Earth's structure, mineral and rock formation, tectonic activity, and structural geology fundamentals such as folds, faults, and stereographic projection techniques.

A freely accessible digital geology textbook entry hosted on OpenGeology.org that introduces the fundamental concepts of plate tectonics, including continental drift, Earth’s layered structure, and the mechanisms driving tectonic plate interactions.

A hands-on, practical NPTEL course taught by Prof. Javed N. Malik at IIT Kanpur, designed to equip students with essential laboratory and field-based skills in landscape mapping. This program emphasizes the integration of remote sensing, fieldwork, and lab techniques to analyze and map surface and subsurface geological and geomorphological structures.

An in-depth NPTEL course led by Prof. Soumyajit Mukherjee—the Department of Earth Sciences, IIT Bombay—with over 16 years of experience teaching stratigraphy and structural geology. This 30-hour lecture series (released from July 2025) covers the core principles of stratigraphy—including superposition, correlation, and stratigraphic methods—and is accessible for free, with an optional, proctored exam for certification (scheduled for October 25, 2025).

An undergraduate-level course on India’s UGC-MOOCs (SWAYAM) platform that intertwines the study of stratigraphy with paleontology—likely emphasizing how fossil evidence aids in rock layer correlation and geologic time assessment. It appears in official course listings for UGC MOOCs.

An open-access undergraduate textbook by Michael Rygel and Page Quinton, hosted on LibreTexts. This work covers foundational sedimentary geology—including sediment creation, rock types, depositional environments, and stratigraphy—and is richly illustrated with high-quality, freely reusable images under a CC BY-SA 4.0 license.

An undergraduate-level course provided through India’s UGC-MOOCs (SWAYAM) platform, Stratigraphy and Palaeontology integrates the study of rock layers (stratigraphy) with fossil-based methods of geologic correlation and dating. While full details on the course content are not publicly available, its platform listing confirms its focus on paleontological applications in understanding stratigraphic sequences.

An undergraduate-level elective course hosted on the UGC-MOOCs (SWAYAM) platform, this module introduces core concepts and principles of geochemistry. It follows the UGC syllabus and emphasizes an environmental and quantitative approach to Earth sciences. Topics include crystal chemistry, chemical bonding, element distribution across Earth’s systems, geochemical cycles, trace elements in various rock types, geochemical thermodynamics, isomorphism, and isotope geochemistry. Delivered over an 8-week period with videos, texts, quizzes, case studies, and assignments.

A comprehensive 12-week advanced course taught by Prof. R. Anand (Associate Professor, Department of Applied Geology, IIT-ISM, Dhanbad), this program explores the foundations and applications of radiogenic isotope systems in Earth sciences. It covers nucleosynthesis, radioactive decay, geochronometry, key isotopic dating methods (such as K-Ar, Ar-Ar, Rb-Sr, Sm-Nd, Re-Os, Lu-Hf, U-Th-Pb), isotope geology of lead, data processing techniques, petrogenetic interpretations using Sr, Nd, Pb, Hf isotopes, and advanced topics like fission track analysis, cosmogenic radionuclides, and extinct radionuclides. The course is free to enroll, with a proctored certification exam available for a fee.

This course, taught by Prof. B. Clark Burchfiel and Ben Crosby, introduces field methods in geology with emphasis on mapping and the geological history of western North America. It uses image-based lectures, field logistics, and seminar discussions to build practical skills.