Understanding the fate of methane carbon in anaerobic marine sediments is a critical component of evaluating the resource potential of hydrates and gas deposits in the ocean. Radiocarbon analysis of the total organic carbon (TOC) and total inorganic carbon (TIC) on 30 sediment samples from two multicores and six piston cores was performed to investigate the fate of methane carbon in sediment of the Nankal Trough. The TIC pool had ...
The program for International Collaboration on CO2 Ocean Sequestration was initiated December 1997. Preliminary steps involved surveying a suite of biogeochemical parameters off the coast of Kona on the Big Island of Hawaii. The preliminary survey was conducted twice, in 1999 and 2000, to obtain a thorough data set including measurements of pH, current profiles, CO2 concentrations, microbial activities, and water and sediment chemistries. These data were collected in order ...
Thin titanium films have been bombarded with low energy (350 eV) deuterium ions at high current density (0.2-0.4 mA.cm2) to investigate the reported occurrence of nuclear reactions at ambient temperatures in deuterium charged metals. A silicon charged particle detector was used to search for charged particles produced by such reactions. Evidence is reported for the detection of hydrogen isotopes with 5 MeV energy at a rate of 10-16 events/ deuteron ...
Ion bombardment under normal vacuum conditions is commonly known to deposit carbon on the target surface. It has been observed that such effects during ion mixing of Cr layers on bearing steels may encourage pitting corrosion of an ion mixed surface. Xe(+) was found to incorporate O, and Cr(+) was found to incorporate C during ion mixing of Cr films deposited on AISI 52100 steel. (Author)