Question Q3GS1GS2
Describe the nature and mode of origin of the main types of rock at the earth's crust.
Main Body
The rocks are generally of three types at crust's: i Igneous Rock ii Sedimentary Rock iii Metamorphic Rock Nature of Rocks: i Igneousgenerally made of single orelow fossil deposits, gets early decomposed ii Metamorphic (Q-Gneiss)hard & complex due to action of heat & pressureRich in fossil depot iii Sedimentary (Q-coal)Layered Nature, trapping of fossils in layers, Moderate strength Mode of Origin: i Igneous RockVolcanic origin, Cooling of magma on earth's crust ii Sedimentary Rockformed due to deposition of weathered particles, process of lithification to solidify both iii Metamorphic RockAction of Heat & pressure on Igneous & Sedimentary Rock, Aes Tough, Rock Cycle Thus, Rock Cycle is process of creation, evolution & destruction
128 words1 paragraphs
Topper
PAKSHAL SECRETRY
AIR 82025
Subject & Paper
GS1GS2
Topic
Geology
Rock Types and Formation
Classification and Origin of Rocks
Writing Stats
128
Total words
1
Paragraphs
explanatory with classifications
Tone