Rapid Clay Mineralogical Analysis for Forensic Science Investigation—Clay Mineralogy Over the Short Distances

1988 ◽  
Vol 33 (6) ◽  
pp. 12580J ◽  
Author(s):  
Yoshiteru Marumo ◽  
Shizuo Nagatsuka ◽  
Yutaka Oba
1957 ◽  
Vol 3 (18) ◽  
pp. 193-205 ◽  
Author(s):  
R. M. S. Perrin

AbstractFour ice advances have been recognised in East Anglia but only two of these, the Lowestoft and the Gipping, have deposited till in the Cambridge area. The clay fractions of these tills have been investigated and compared with those of the Oxford, Ampthill, Kimeridge and Gault Clays, the Lower Greensand and the Chalk, all of which outcrop in the district and could be expected to contribute material to the tills.The value of clay mineralogical analysis as a means of measuring directions of ice-movement is critically discussed.An outline account is given of the more important processes of weathering and soil-formation which occur on the Gipping till in the Breckland area.


Author(s):  
K. Culbreth

The introduction of scanning electron microscopy and energy dispersive x-ray analysis to forensic science has provided additional methods by which investigative evidence can be analyzed. The importance of evidence from the scene of a crime or from the personal belongings of a victim and suspect has resulted in the development and evaluation of SEM/x-ray analysis applications to various types of forensic evidence. The intent of this paper is to describe some of these applications and to relate their importance to the investigation of criminal cases.The depth of field and high resolution of the SEM are an asset to the evaluation of evidence with respect to surface phenomena and physical matches (1). Fig. 1 shows a Phillips screw which has been reconstructed after the head and shank were separated during a hit-and-run accident.


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