Each year approximately 40 million metric tons of processed kaolin are sold around the world into markets ranging from brick making to paper coating. This functional versatility is a direct consequence of natural variability in deposit quality, which is controlled by mineralogy and processing. Poorer quality deposits, which contain relatively large quan• tities of impurity minerals, are sold …
As MA y be divined from its title, this book is about mining geology. Less evident, perhaps, is the fact that it seeks to cover a field rather different from that of texts entitled Mineral Deposits or Economic Geology. Those texts, concerned primarily with the origin and nature of mineral deposits and with descriptions of representative mining districts, pr…
We are living in an epoch when numerous secrets of nature are being discovered and natural resources are being reclaimed by humans. At the same time, however, this is an epoch of considerable human efforts to protect their health against an increasingly destructive anthropogenic activity. According to the accomplishments o…
In the usual geostatistical practice, global estimation of a deposits is made by running the estimated values obtained by kriging for each individual block in the deposits. When all blocks are identical in size it is equivalent to simply accepting the average of all the estimated values as the global estimated value. Variance of this estimator is expressed by a complicated formula. This explain…
The assumption of lognormal (parent) field size distributions has for a long time been applied to resources apprasisal and evaluation of exploration strategy by the petroleoum industry. However, frequency ditributions estimated with observed data and used to justify this hypotesis are conditional. Eximination of various observed field size distributions across basins and over time shows that su…
A feedback or validation procedure is an essential feature of petroleum resource evaluation methodology. The purpose of such a procedure is to provide assessors with a mechanism which enables them to validate input data and challenge geological interpretations. In our method, pool sizes can be estimated by rank from the pool size distribution and the number of pools of a play (Lee and Wang, 198…
This section X.1 of Bibliography 7.0 mainly contains 546 papers on the taxonomy of modern or sub-recent microfaunas and microfloras as well as papers on their distribution in Recent sediments of SE Asia. For a more extensive introduction see Van Gorsel, Lunt and Mor1y (2014, Bertia Sedimentologi 29). An understanding of modem biofacies distributions is obviously sig…