Clark, Virginia A. Effect of volatiles on seismic attenuation and velocity in sedimentary rocks [microform] / Virginia Ann Clark - Ann Arbor, Mich. : University Microfilms International, 1981 - 2 microfiches ; 11 x 15 cm. Thesis (Ph.D.)-Texas A & M University, 1980 Subjects--Topical Terms: Rocks, Sedimentary