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Geology/plate tectonics

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Question
I'm wondering whether the mid-Atlantic Rift is the only area on the planet in which there is new crust being formed, which is helping to drive plate tectonics. What about the Pacific? It seems as though the whole Ring of Fire is subduction, but unless the Pacific Ocean is getting smaller, I have trouble seeing what's driving plate movement.

I know that magma movement is responsible for plate movement; I'm just having trouble unifying all these ideas. Can you help?

Answer
Plate Tectonics is not the final answer to all of our queries.
It conveniently explains many observed phenomena about seismicity, magmatic activity, continental configuration, bathymetric geomorphology etc. There are many planetary observations it cannot explain, may be we would have another Tectonic Model in coming years.  

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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.

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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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