TY - RPRT TI - Chemical variation related to the stratigraphy of the Columbia River basalt AU - Thomas L. Wright AU - Maurice J. Grolier AU - Don Swanson PY - 1973 DO - 10.1130/0016-7606(1973)84<371:cvrtts>2.0.co;2 UR - https://pubs.usgs.gov/publication/70207542 ID - 70207542 ER -