Chetco complex of Hotz (1971)

Informally named unit representing island-arc volcanic complex comprised predominantly of igneous and metamorphosed volcanic rocks; includes gabbro, metagabbro, quartz diorite, and amphibolite
State Oregon
Name Chetco complex of Hotz (1971)
Geologic age Late Jurassic
Lithologic constituents
Metamorphic > Amphibolite (Amphibolite)May be gradational into the granulite facies
Comments The area mapped as Jc on the State Geologic Map is shown as "amphibolite gneiss" by Coleman (1972). This area is not the same as the area that includes the informally designated Chetco River complex of Hotz (1971), which is 10-20 km farther east.
NGMDB product
Counties Curry - Josephine