00426013 Author(s): ERA-04-001300; Cooper, H.F. EDB~-78-125194 Jr. . Title: Estimates of crater dimensions for near-surface explosions of nuclear and high-explosive sources Corporate Source: R and D Associates, Marina del Rey, CA (USA) Publication Date: Sep 1976 p 54 . Report Number(s): RDA-TR-2604-001 Contract Number (DOE): W-7405-ENG-48 : Document Type: Report Language: English Journal Announcement: EDB7811 Availability: Dep. NTIS, PC A04/MF AOl1. Subfile: Center). ERA (Energy Research Abstracts); TIC (Technical Information Country of Origin: United States Country of Publication: United States Abstract: Crater data from numerous high-explosive from fewer nuclear explosive (NE) (HE) experiments and tests are used to develop an empirically based procedure for predicting crater dimensions from nuclear explosions in various geologic media. The HE crater data are used to rank the cratering efficiency of various geologies. NE crater data from dry soil at the Nevada Test Site and from saturated coral at Eniwetok and Bikini atolls are used to relate NE and HE cratering efficiency. Crater shapes from explosive and impact craters are examined to provide a basis for estimating crater radius and depth in a given geology once the crater volume is known. Best estimates of the crater volume and dimensions are presented along with an estimated range of uncertainty.; Major Descriptors: *CHEMICAL EXPLOSIONS -- USES; *CRATERING EXPLOSIONS -PERFORMANCE; *NUCLEAR EXPLOSIONS -- USES Descriptors: CALCULATION METHODS; FORECASTING; SIZE; UNDERGROUND EXPLOSIONS Broader Terms: EXPLOSIONS Subject Categories: 450201* -- Military Technology, Weaponry, & National Defense -- Nuclear Explosions & Explosives ~-- Containment 450100 -- Military Technology, Weaponry, & National Defense -Chemical Explosions & Explosives 10/5/947 00418331 Author(s): (Item 647 from file: 103) ERA-03-053478; INS-78-016387; Greenhouse, N.A.; EDB-78-117512 Miltenberger, R.P.; Cua, F.T. Title: Radiological analyses of Marshall Islands environmental samples, 1974--1976 Corporate Source: Publication Date: Report Number(s): Brookhaven National Lab., 12 Dec 1977 p 48 BNL-50796 Upton, NY (USA) Contract Number (DOE): EY-76-C-02-0016 Document Type: Report Language: English Journal Announcement: EDB7810 Availability: Dep. NTIS, PC A0OQ3/MF AOl. Subfile: TIC INS (US Atomindex input); (Technical Information Center). ERA (Energy Research Abstracts) ; Country of Publication: United States Abstract: Results are reported from the radiological analysis of environmental samples collected in the Marshall Islands during 1974 through 1976. Most of the samples were collected on or near the Bikini Atoll and included plants, soil, fish, catchment water, and sediments, with emphasis on local marine and terrestrial food items. Data are presented from ..gamma.. spectral analysis and the content of /sup 90/Sr and transuranic elements in the samples.; Major Descriptors: *BIKINI -- AQUATIC ECOSYSTEMS; *BIKINI -- TERRESTRIAL ECOSYSTEMS; *MARSHALL ISLANDS -- AQUATIC ECOSYSTEMS; *MARSHALL ISLANDS -- TERRESTRIAL ECOSYSTEMS; *STRONTIUM 90 -- ENVIRONMENTAL TRANSPORT; *TRANSURANIUM ELEMENTS -- ENVIRONMENTAL TRANSPORT Descriptors: DIET; ENVIRONMENT; FISHES; GAMMA SPECTROSCOPY; PLANTS; 306! Ho Country of Origin: United States erp