TY  - RPRT
TI  - Geology of volcanic rocks in the south half of the Ishpeming greenstone belt, Michigan
AU  - Theodore J. Bornhorst
AU  - Rodney C. Johnson
AU  - L. M. H. Carter
PY  - 1993
DO  - 10.3133/b1904p
UR  - https://pubs.usgs.gov/publication/b1904P
ID  - b1904P
ER  -