ng(o)3
http://books. google. com/books http://books.google.com/books?id=1RWfk45WzYoC&pg=PA125&lpg=PA125&dq=terrestrial+heat+flow,+radioactive+decay&source=bl&ots=SRoPYS4R8j&sig=1ppdyOH8394xTBckvGeMbnY6fxA&hl=en&sa=X&ei=x1AzT5TvMsbs2gX_wJCcAg&ved=0CDIQ6AEwAg#v=onepage&q=terrestrial%20heat%20flow%2C%20radioactive%20decay&f=false http://books.google.com/books?id=a_ijoTgDhnEC&pg=PA256&lpg=PA256&dq=terrestrial+heat+flow,+radioactive+decay&source=bl&ots=nbX5sgg3Nj&sig=CrB7Ijz4tFplNVec855L5jQFWlw&hl=en&sa=X&ei=x1AzT5TvMsbs2gX_wJCcAg&ved=0CEcQ6AEwBQ#v=onepage&q=terrestrial%20heat%20flow%2C%20radioactive%20decay&f=false
from: A Geological Miscellany, Orbital Press, 1982 ng(o)3