 |
| Titel |
A novel iterative approach for mapping local singularities from geochemical data |
| VerfasserIn |
Zhijun Chen, Qiuming Cheng, Jiaoguo Chen, Shuyun Xie |
| Medientyp |
Artikel
|
| Sprache |
Englisch
|
| ISSN |
1023-5809
|
| Digitales Dokument |
URL |
| Erschienen |
In: Nonlinear Processes in Geophysics ; 14, no. 3 ; Nr. 14, no. 3 (2007-06-28), S.317-324 |
| Datensatznummer |
250012204
|
| Publikation (Nr.) |
 copernicus.org/npg-14-317-2007.pdf |
|
|
|
|
|
| Zusammenfassung |
| There are many phenomena in nature, such as earthquakes,
landslides, floods, and large-scale mineralization that are characterized by
singular functions exhibiting scale invariant properties. A local
singularity analysis based on multifractal modeling was developed for
detection of local anomalies for mineral exploration. An iterative approach
is proposed in the current paper for improvement of parameter estimations
involved in the local singularity analysis. The advantage of this new
approach is demonstrated with de Wijs's zinc data from a sphalerite-quartz
vein near Pulacayo in Bolivia. The semivariogram method was used to
illustrate the differences between the raw data and the estimated data by
the new algorithm. It has been shown that the outcome of the local
singularity analysis consists of two components: singularity component
characterized by local singularity index and the non-singular component by
prefractal parameter. |
| |
|
| Teil von |
|
|
|
|
|
|
|
|