రాయి: కూర్పుల మధ్య తేడాలు

చి యంత్రము కలుపుతున్నది: sk:Skala
పంక్తి 19:
 
The three classes of rocks — the igneous, the sedimentary and the metamorphic — are subdivided into many groups. There are, however, no hard and fast boundaries between allied rocks. By increase or decrease in the proportions of their constituent minerals they pass by every gradation into one another, the distinctive structures also of one kind of rock may often be traced gradually merging into those of another. Hence the definitions adopted in establishing rock nomenclature merely correspond to selected points (more or less arbitrary) in a continuously graduated series.<ref name=EB1911>{{1911|article=Petrology}}</ref>
 
==ఇవి కూడా చూడండి==
* [[కదిలే రాళ్లు]]
 
==మూలాలు==
"https://te.wikipedia.org/wiki/రాయి" నుండి వెలికితీశారు