The andesite line is the most significant regional geologic distinction in the Pacific Ocean basin. It separates the mafic basaltic volcanic rocks of the Central Pacific Basin from the partially submerged continental areas of more felsic andesitic volcanic rock on its margins. The andesite line parallels the subduction zones and deep oceanic trenc...
Found on
http://en.wikipedia.org/wiki/Andesite_line
(from the article `Pacific Islands`) ...the central and eastern Pacific by deep ocean trenches along the eastern borders of Japan, the Marianas, New Guinea, Solomon Islands, Fiji, and ... A geologically important boundary between the continental, or `high,` islands and the numerous truly oceanic, or `low,` islands of...
Found on
http://www.britannica.com/eb/a-z/a/71
The boundary in the Pacific Ocean separating volcanoes of the inner Pacific basin, which discharge only basalt, from those near the continental margins, which discharge both andesite and basalt.
Found on
http://www.evcforum.net/WebPages/Glossary_Geology.html
The geographic boundary between rocks of the Pacific Basin, which are basaltic, and those around the rim of the basin, which are in part andesitic.
Found on
https://www.encyclo.co.uk/local/22327
No exact match found.
