00920cam a22002891  4500001001300000003000400013005001700017008004100034010001700075035001900092040005400111043001200165045000900177050002200186051001600208082001100224100005600235245008500291260002200376300003300398490007000431504002500501650002400526650004200550650002100592999001700613gs 43000028 DLC20260227111348.0780808s1943    oruab    b   s000 0 eng c  ags 43000028   a(OCoLC)4120184  aU. S. Geol. Survey. Libr.cNcRSdNcRSdOCoLCdDLC  an-us-or  ax4x400aQE155b.A3 no. 24  aQE581b.T76  a558.621 aTwenhofel, William H.q(William Henry),d1875-1957.10aOrigin of the black sands of the coast of southwest Oregon,cby W. H. Twenhofel.  a[Portland]c1943.  a25 p.billus., maps.c28 cm.0 aOregon. Dept. of Geology and Mineral Industries. Bulletinvno. 24  aBibliography: p. 25. 0aBlack sandzOregon. 0aSedimentation and depositionzOregon. 0aGeologyzOregon.  c27882d27882