GFA (NTIS NTS) was to pravida a highly zeophysical, and erate: dinensiacs and ad to better understand the craters and that subsecuerntly e Depastment of Defense te gic deferse systers i4 thes mnyeiza. Suratisgrvecric Wwdan.e Coatents Jriedaucte Q&vity Survevet BSeineic 1 Paleantcoligie =tusie2: erations: GRA Tester (NTIS NTS) 1@ United States Geclogical ters formed from nigh-vield, . The craters studied. KOA and -survace bursts detonated near om May ie and June 2&, ifte, rt cf the Parific Proving high-yield nuclear exuplasian uresses and crater-related + te identify maier crater > previde a data base *:> ther types of related st.idies: _ the process that formed ise tlal feature te its srzsent e nesded for verificatian af 5004608