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Geostandards‐A New Approach to their Production and Use
Author(s) -
ENGELS J. C.,
INGAMELLS C. O.
Publication year - 1977
Publication title -
geostandards newsletter
Language(s) - English
Resource type - Journals
eISSN - 1751-908X
pISSN - 0150-5505
DOI - 10.1111/j.1751-908x.1977.tb00858.x
Subject(s) - certification , homogeneity (statistics) , certificate , computer science , production (economics) , statistics , operations research , mathematics , political science , law , economics , algorithm , microeconomics
Selection, preparation, analysis for composition and for degree of homogeneity, certification and distribution of a useful geochemical reference sample is a long and complicated endeavour. Certain basic principles must be observed if this endeavour ‐is to be successful. The material must be adequately uniform, its degree of homogeneity must be reported, certificate values must be reliable, and there must be enough left after certification to be useful. These principles have been followed in preparing and distributing a K‐Ar dating standard, LP‐6 Bio 40‐60#, which may serve to illustrate them. Sources of error in preparation and utilization of geochemical reference samples have been investigated.