Inner Zone of Southwest Japan
Geological term referring to the area of southwestern Japan north of the Median Tectonic Line. Used in academic and technical contexts.
See also: 西南日本
Old granite is widely distributed in the Inner Zone of Southwest Japan.
Refers to the broader southwestern Japan region, while 西南日本内帯 specifically denotes the inner zone north of the Median Tectonic Line.
Compound of 西南日本 (Southwest Japan) and 内帯 (inner zone), a geological term.