In order to find out specific features that may be used to characterize each of these groups, data (petrological, geochemical, geochronological and field relations) of as many as possible of the granite masses were collected, processed and correlated with bodies from well known geotectonic ...
This geochemical classification of granitic rocks is based upon three variables. These are FeO/(FeO + MgO) = Fe-number [or FeOtot/(FeOtot + MgO) = Fe*], the modified alkali–lime index (MALI) (Na2O + K2O – CaO) and the aluminum saturation index (ASI) [Al/(Ca – 1·67P + Na...
Geotechnical study of marble, schist, and granite as dimension stone: a case study from parts of Lesser Himalaya, Neelum Valley Area, Azad Kashmir, Pakistan (Geotechnical investigation and testing. Identification and classification of rock. Part 1: Identification and description 1鈥 16, 2003 ) and...
High mountains are formed of this type of rock. These rocks have a lesser content of heavier minerals like iron and magnesium, hence they are of pale colour and normally contain quartz and feldspar. Acid rocks are hard, compact, massive and resistant to weathering. Granite is a typical ...
are given in theTable. The particle-size categories are derived from the Udden-Wentworth scale developed for sediment. For igneous and metamorphic rocks, the terms are generally used as modifiers—e.g.,medium-grainedgranite.Aphaniticis a descriptive term for small crystals, andphaneriticfor larger...
4) rock hierarchical unit 岩石谱系单位 1. On the rock hierarchical units characteristics and the emplacement mechanism of Silurian granite in the boundary between Hunan and Jiangxi; 湘赣边境志留纪花岗岩岩石谱系单位特征及侵位机制探讨5) lithodemic unit 岩石谱系单位 1. A research into lithodemic ...
The classification systems proposed for weathered granitic rock were analyzed by (Lee and de Freitas 1989). A similar study was conducted by (Ruxton and Berry 1957) on granite rock terrain in Hong Kong. They identify the upper section of the zone as zone I, which is composed of fragments ...
and curing. They have the texture and texture of natural stone, but the cost is lower and the processing is more convenient. Among artificial stones, common ones include quartz, artificial marble, and artificial granite. These stones not only have the beauty of natural stones, but also have ...
Rock mass classification Introduction During the feasibility and preliminary design stages of a project, when very little detailed information is available on the rock mass and its stress and hydrologic characteristics, the use of a rock mass classification scheme can be of considerable benefit. At ...
摘要: A comprehensive range of classification, or index, and engineering design tests have been carried out on the seven stages of weathering of rock material recognised in the Hingston Down granite from eaDOI: 10.1007/BF02634696 被引量: 156 ...