Author(s):
Garcia Pereira, Henrique 
; Renca, Sara ; Saraiva, José
Date: 2003
Persistent ID: http://hdl.handle.net/10316/3940
Origin: Estudo Geral - Universidade de Coimbra
Document details
A case study on geochemical anomaly identification through principal components...
Description
Based on a case study in which a single geochemical anomaly was located in the vicinity of an abandoned mine in Central Portugal, a recursive methodology for anomaly/background separation was developed. This methodology relies on the supplementary projection of each of the samples taken from a subset of [`]anomaly candidates' onto the axes provided by Principal Components Analysis of the background subset. The concept of [`]anomaly intensity', defined by the average of the distances from the original to the supplementary projections, is the basis for final anomaly identification. http://www.sciencedirect.com/science/article/B6VDG-460M5D3-1/1/4fec467096c6fb77ab001c960edbf583
Based on a case study in which a single geochemical anomaly was located in the vicinity of an abandoned mine in Central Portugal, a recursive methodology for anomaly/background separation was developed. This methodology relies on the supplementary projection of each of the samples taken from a subset of [`]anomaly candidates' onto the axes provided by Principal Components Analysis of the background subset. The concept of [`]anomaly intensity', defined by the average of the distances from the original to the supplementary projections, is the basis for final anomaly identification. http://www.sciencedirect.com/science/article/B6VDG-460M5D3-1/1/4fec467096c6fb77ab001c960edbf583
Document Type
Article
Language English
Language English
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