Placer deposits or simply placers are accumulation of valuable minerals concentrated in overburden in stream sediments or in beach materials by natural processes. Heavy minerals like gold, diamond, Ti, Cr, Sn and magnetite of the same size of low density minerals like quartz thus the heavy minerals will be concentrated in areas where water current […]
Placer Mineral Deposits Read More »
Here is the list and short description of important Igneous rocks. Detailed description of the particular rock is given in separate post.
Important Igneous Rocks Read More »
Facies Pelitic Calcareous Mafic Zeolite (100-2000C) interlayered smectite/chlorite calcite calcite Laumonite, thompsonite, calcite, interlayered smectite/chlorite Prehnite- Pumpellyite(150-3000C) Prehnite, Pumpellyite, calcite, chlorite, albite Calcite Prehnite, Pumpellyite, calcite, chlorite, albite Greenschist(300-4500C) Muscovite, chlorite, Quartz, albite, biotite, garnet Calcite, dolomite, Quartz, epidote, tremolite Albite, epidote, chlorite, quartz, actinolite, sphene Epidote-Amphibolite(450-5500C) Muscovite, biotite, Garnet, albite, quartz calcite, quartz, tremolite,
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Building stones are the stones which are used in the buildings. Here are some building stones and their building properties – Granite : Excellent building properties, high strength, high hardness, low absorption value, least porosity, good resistance to frost & weathering, excellent durability. These rocks have poor resistance to fire. Basalt : High strength, resistant
Infiltration is the process by which water reaching the ground surface enters the soil. Infiltration rate is a measure at which soil is able to absorb rainfall. It is measured in mm per hour. Infiltration is governed by two forces Gravity and Capillary action. Smaller pores offer greater resistance to Gravity, very small pores pull
