ABSTRACT: In this study, the main principles of deterministic and probabilistic seismic hazard analyses are given, A computer program was written using the principles of probabilistic approach. The program is aimed at computing return periods for peak horizontal ground acceleration (PGA) and the probability of exceedance ofPGÂ for certain time periods. An example problem is presented to help the user better understand the program.
ABSTRACT: In this study, the effects of production capacity limits are investigated in the cut off grade decisions, Firstly, the relationships among the cut off grade, avarage grade and tonnage are analyzed in case of both normal and lognormal distributions for reserve-grades distribution, Second, the effects to the cut off grade decisions that are limited in feeding to plant, output from plait and mine depletion capacities are analyzed. Finally, applications of this research are done by using the data of production plants and drill-holes of Etibank-Gümüşkoy Silver Mine Company,
ABSTRACT: One of the most suitable ways for disposing the solid-wastes is to store them under suitable conditions, However; a storage which is not prepared according to the suitable technical qualities causes important dangers for underground waters Owing to this, the storage places must be selected according to the geological conditions and built on these data,
ABSTRACT: Using some simple calculation techniques the ma jor chemical analyses results of magmatic rocks can be transformed in into the parameters which present useful informations about petrological determinations, The parameters which were also na med as Niggli values achieve the differ antiation trends of magmatic rocks, their magmatic provinces and alkali characters of chemically analysed rocks. They also give important informations about the then type of magmas which rocks are derived NIGGLI which was written in QUICKBASIC calculates the Niggli parameters of major chemical analyses, evatutes the results in terms of petrochemistry and presents their variations as graphics. The compiled form of program is aproximately 356 kbyt, This program operates under the IBM compatible personal computers have a VGA graphics card