Geology is an important subject for the UPSC examination, especially for candidates choosing it as an optional subject. Video lectures can be a great resource for studying geology, as they provide visual explanations and demonstrations of various concepts. Here are some recommended video lectures for geology optional:

1. "Geology Optional Complete Video Lectures" by EduRev:
EduRev offers a comprehensive set of video lectures specifically designed for the geology optional subject. These lectures cover the entire syllabus in detail and provide in-depth explanations of various geological concepts. The videos are well-structured, visually appealing, and cover all the important topics required for the UPSC examination.

2. "Structural Geology Video Lectures" by EduRev:
Structural geology is an important topic in the geology optional syllabus. EduRev provides specialized video lectures on structural geology, where experts discuss topics such as rock deformation, folds, faults, and other structural features. These lectures help candidates understand the principles and techniques used to analyze and interpret geological structures.

3. "Paleontology Video Lectures" by EduRev:
Paleontology is another significant topic in the geology optional syllabus. EduRev's video lectures on paleontology cover the study of fossils, evolution, and the geological time scale. These lectures provide a detailed understanding of the principles and methods used in paleontological research.

4. "Mineralogy and Petrology Video Lectures" by EduRev:
Mineralogy and petrology are fundamental subjects in geology. EduRev offers video lectures that cover the identification, classification, and study of minerals and rocks. These lectures also discuss the formation and properties of different types of rocks, including igneous, sedimentary, and metamorphic rocks.

5. "Geomorphology Video Lectures" by EduRev:
Geomorphology is an important branch of geology that deals with the study of landforms and the processes that shape the Earth's surface. EduRev's video lectures on geomorphology cover topics such as weathering, erosion, landforms, and the impact of tectonic activity on the Earth's surface. These lectures provide a comprehensive understanding of the dynamic nature of landforms.

In conclusion, EduRev offers a range of video lectures that cover the entire geology optional syllabus for the UPSC examination. These lectures are well-structured, visually appealing, and provide detailed explanations of various geological concepts. By utilizing these resources, candidates can enhance their understanding of geology and improve their chances of success in the examination.