TY - RPRT TI - Resource assessments, geologic deposit models, and offshore minerals with an example of heavy-mineral sands AU - Emil D. Attanasi AU - J. H. DeYoung AU - E. R. Force AU - Andrew Grosz PY - 1987 DO - 10.1007/978-94-009-3803-8_32 UR - https://pubs.usgs.gov/publication/70200471 ID - 70200471 ER -