TY - RPRT TI - Pegmatite/wallrock interactions, Black Hills, South Dakota: Progressive boron metasomatism adjacent to the Tip Top pegmatite AU - C.K. Shearer AU - J. J. Papike AU - S.B. Simon AU - J.C. Laul AU - R.P. Christian PY - 1984 DO - 10.1016/0016-7037(84)90306-5 UR - https://pubs.usgs.gov/publication/70014073 ID - 70014073 ER -