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Reassessing the evidence for the earliest traces of life
Nature, 2002The isotopic composition of graphite is commonly used as a biomarker in the oldest (>3.5 Gyr ago) highly metamorphosed terrestrial rocks. Earlier studies on isotopic characteristics of graphite occurring in rocks of the approximately 3.8-Gyr-old Isua supracrustal belt (ISB) in southern West Greenland have suggested the presence of a vast microbial ...
Mark A, van Zuilen +2 more
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2010
Fibres, hairs, paint, glass, and explosives traces are examined by forensic scientists in a wide range of crimes from burglary to terrorism. The distinctive characteristics of trace evidence are its microscopic size or minute amount, its ability to transfer readily from one item to another, and that it is subsequently lost from the item following that ...
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Fibres, hairs, paint, glass, and explosives traces are examined by forensic scientists in a wide range of crimes from burglary to terrorism. The distinctive characteristics of trace evidence are its microscopic size or minute amount, its ability to transfer readily from one item to another, and that it is subsequently lost from the item following that ...
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2016
Trace evidence is ubiquitous because it comes from the environment in which we interact as part of our daily lives. Although the environment in which we interact is populated by manufactured materials supplied at the transient whims of the global manufacturing economy, our behaviour as human beings remains highly individual.
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Trace evidence is ubiquitous because it comes from the environment in which we interact as part of our daily lives. Although the environment in which we interact is populated by manufactured materials supplied at the transient whims of the global manufacturing economy, our behaviour as human beings remains highly individual.
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Trace evidence refers to minute samples of material other than those which are biological in nature. A wide range of trace materials are encountered in casework at forensic laboratories. These range from those which are examined routinely and subject to standard operating procedures, including glass, paint and fibres, through to those which are rarely ...
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