Zobrazeno 1 - 10
of 22
pro vyhledávání: '"B. R. Simoneit"'
Autor:
A I, Rushdi, B R, Simoneit
Publikováno v:
Origins of life and evolution of the biosphere : the journal of the International Society for the Study of the Origin of Life. 31(1-2)
The formation of lipid compounds during an aqueous Fischer-Tropsch-type reaction was studied with solutions of oxalic acid as the carbon and hydrogen source. The reactions were conducted in stainless steel vessels by heating the oxalic acid solution
Autor:
T M, McCollom, B R, Simoneit
Publikováno v:
Origins of life and evolution of the biosphere : the journal of the International Society for the Study of the Origin of Life. 29(2)
The formation of organic compounds during the decomposition of iron oxalate dihydrate (IOD) was investigated as a possible analog for abiotic organic synthesis in geological systems. After heating at 330 degrees C for 2-4 days, IOD decomposed to a mi
Publikováno v:
Origins of life and evolution of the biosphere : the journal of the International Society for the Study of the Origin of Life. 29(2)
Ever since their discovery in the late 1970's, mid-ocean-ridge hydrothermal systems have received a great deal of attention as a possible site for the origin of life on Earth (and environments analogous to mid-ocean-ridge hydrothermal systems are pos
Publikováno v:
Origins of life and evolution of the biosphere : the journal of the International Society for the Study of the Origin of Life. 28(4-6)
Biomarkers in geological samples are products derived from biochemical (natural product) precursors by reductive and oxidative processes (e.g., cholestanes from cholesterol). Generally, lipids, pigments and biomembranes are preserved best over longer
Autor:
B R, Simoneit
Publikováno v:
Origins of life and evolution of the biosphere : the journal of the International Society for the Study of the Origin of Life. 22(1-4)
It is the purpose of this chapter to provide a description of the fate and chemical alterations of organic matter under hydrothermal conditions, with a brief overview of the geographic localities where these processes have been studied to date. Two m
Autor:
N G, Holm, A G, Cairns-Smith, R M, Daniel, J P, Ferris, R J, Hennet, E L, Shock, B R, Simoneit
Publikováno v:
Origins of life and evolution of the biosphere : the journal of the International Society for the Study of the Origin of Life. 22(1-4)
Publikováno v:
Science. 166:733-738
Organic combustion products generated by the lunar module descent engine, which burns a 1:1 mixture of unsymmetrical dimethylhydrazine fuel and nitrogen tetroxide oxidizer, have been analyzed. The major gaseous combustion products found were ammonia,
Publikováno v:
Chemical Geology. 7:123-141
Basic nitrogenous compounds isolated from extracts of Green River Formation oil shale were analyzed. The major homologous constituents found were the compositional types - namely, quinolines, tetrahydrequinolines with minor amounts of pyridines and i
Autor:
B. R. Simoneit, Alma L. Burlingame
Publikováno v:
Nature. 222:741-747
Normal, isoprenoid, dicarboxylic, keto and various aromatic acids isolated from controlled stepwise degradation of Green River kerogen by successive chromic acid oxidations
Autor:
Alma L. Burlingame, B. R. Simoneit
Publikováno v:
Nature. 218:252-256
Minerally entrapped fatty acids analyzed after demineralization liberation of exhaustively extracted oil shale from Green River Formation