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Social and Behavioral Sciences Commons™
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Full-Text Articles in Social and Behavioral Sciences
Compositional Data Analysis As A Robust Tool To Delineate Hydrochemical Facies Within And Between Gas-Bearing Aquifers, D D.R Owen, V Pawlowsky-Glahn, J J. Egozcue, A Buccianti, John M. Bradd
Compositional Data Analysis As A Robust Tool To Delineate Hydrochemical Facies Within And Between Gas-Bearing Aquifers, D D.R Owen, V Pawlowsky-Glahn, J J. Egozcue, A Buccianti, John M. Bradd
Faculty of Science, Medicine and Health - Papers: part A
Isometric log ratios of proportions of major ions, derived from intuitive sequential binary partitions, are used to characterize hydrochemical variability within and between coal seam gas (CSG) and surrounding aquifers in a number of sedimentary basins in the USA and Australia. These isometric log ratios are the coordinates corresponding to an orthonormal basis in the sample space (the simplex). The characteristic proportions of ions, as described by linear models of isometric log ratios, can be used for a mathematical-descriptive classification of water types. This is a more informative and robust method of describing water types than simply classifying a water …
Into The Past: A Step Towards A Robust Kimberley Rock Art Chronology, June Ross, Kira E. Westaway, Meg Travers, Michael J. Morwood, John Hayward
Into The Past: A Step Towards A Robust Kimberley Rock Art Chronology, June Ross, Kira E. Westaway, Meg Travers, Michael J. Morwood, John Hayward
Faculty of Science, Medicine and Health - Papers: part A
The recent establishment of a minimum age estimate of 39.9 ka for the origin of rock art in Sulawesi has challenged claims that Western Europe was the locus for the production of the world’s earliest art assemblages. Tantalising excavated evidence found across northern Australian suggests that Australia too contains a wealth of ancient art. However, the dating of rock art itself remains the greatest obstacle to be addressed if the significance of Australian assemblages are to be recognised on the world stage. A recent archaeological project in the northwest Kimberley trialled three dating techniques in order to establish chronological markers …