The format of mineral description has undergone considerable evolution in recent years. New illustration have been subtituted to call attention to improved equipment now available. Pahse microscopy is illustrated. The cahpter intened to guide the student in the selection of methods of grinding thin sections has been revised. A cahpter is included to…
Perhaps it would be simplest to begin by stating the ways in which this new edition, the fourth under the aegis of the present editor, has not been changed. Its remains the one-volume source of factual information for chemists, both professionals and students-the first place in which to "look it up" on the spot. The aim is to provide sufficient data…
Tidak salah apabila masyarakat luas melihat gunung api adalah suatu sosk yang hanya menciptakan bencana karena setiap kali dibicarakan orang yang ditonjolkan adalah sifat letusannya yang menimbulkan ketakutan. Padahal setiap kali gunung api meletus hanya berlangsung beberapa saat dibanding dengan masa tenang yang dilaluinya. Apabila kita jujur dalam…
Physical geology is a classic that has been used for introductory geology classes for two and a half decades. During that time, it has evolved into a market-leading text read by thousands of students. In keeping with this long-standing tradition, the tenth edition has been updated to include the most current imformation from the various subdisciplin…
an introductory text canot explore all aspects of environmental concerns. here, the emphasis is on the physical constrains imposed on human activities by the geologic processes that have shaped and are still shaping our natural environment. in a real sense, these are the most basic, inescapable constrains; we canot, for instance, use aresource that …
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 distribut…
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 th…
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 ex…
This third issue of the Asian-Pacific Remote Sensing contains 17 articles on topics as varied as the detection of aeolian sand accumulations via satellite images, urban green spaces study through aerial photography and the usefulness of a contextual classification algorithm for land-use/land-cover mapping. we feel confident that each reader will fin…
The regional Remote sensing Programme (UNDP/RAS/86/141) was initiated in March 1983 and is a project of the governments of Asia and Pacific. The United Nations Development programme is providing financial support to this project. National agencies for remote sensing and related ministries in the in the region are the co-ordinating agencies for the R…