Posted in Blog, Hawaii & South Pacific

Exploring island life

volcano

 

85% of all the world’s seismic activity occurs around the Pacific plate. To grow an island chain:

  • A crack opens in the sea floor
  • Hot, volcanic matter comes up through the crack
  • A submarine volcano grows and grows until it breaks through the ocean surface slowly becoming an island
  • Eventually it breaks away from the hot center and moves south east, and another submarine volcano grows in its place
  • Someday the island with the extinct volcano will begin to sink back into the – usually around 1 cm per century. As that begins, coral reefs grow up around it, creating lagoons, which create barrier reefs which stand as the old margin of the original island.

Cite: Stanley, D., South Pacific Handbook.

 

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Author:

Dr. Sheila Embry is a govie, author, pracademician, sister, aunt, cousin, and friend who loves to read, write, think, and laugh. Many of her blog postings are summaries or excerpts of books that she read and wants to share to encourage others. An author with more than 25 years experience within the legislative and executive branches of the U. S. federal government holding 3 accredited degrees: Doctor of Management in Organizational Leadership, Master of Arts in Human Resources Development, and Baccalaureate of Business Administration, she believes in continuing learning both on and off the job. She has been recognized with multiple professional and writing awards for her peer-reviewed, publications. Click the bibliography page above for a listing of all the publications.

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