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Question
Hi Sir. I am a student of BS Geology. My question is " why mud cracks are polygonal in shape ? what are the reasons for it ??

Answer
Mud cracks are formed by more or less similar process of formation of columnar joints.
During desiccation cooling centres are formed which are surrounded by tensional joints, The intersection of adjoining joints produces polygonal shapes.
PL. read about formation of columnar joints.

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N.K.Agarwal

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Would be happy to answer : General Geology, Engineering Geology, Economic Geology, Geomorphology, Geoenvironment, Tectonics, Natural Resources inclusive of Rocks & Minerals, Exploration, Science Policy etc.

Experience

Geological-Geotechnical Solutions and professional advice. I have over 34 years of professional experience of working as a geologist in diverse mountainous terrain. I have professional skills for planning. programming, executing and monitoring of : (1) Engineering Geological investigations in Hydropower and Developmental projects, (2) Landslide and Disaster Management etc. (3) Natural Resource Management and Programming (4) Geological Mapping (5) Geoenvironmental Management (6) Mineral Exploration (7) Water Resources Management, (8) Integrated Watershed Management, (9) Training on - Natural Resource Management, Geoenvironmental Management, Waste Management, Geohazards, Geotechnical Investigations, Data acquisition & interpretations, (10) R&D Initiatives and Societal issues etc.

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ex-Geological Survey of India. Retired Director now Geo-Consultant and Advisor -HIGEOS India

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Departmental Publications mostly

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M.Tech.(Applied Geology), University of Roorkee (now IIT Roorkee).

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Worked in the Geological Survey of India for aabout 32 years. Presently - GeoConsultant & Advisor - HIGEOS India

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