浅色岩（leucocratic rock）又称淡色岩。是指深色矿物较少（在35%以下）而大部分为浅色矿物的一种火成岩，如花岗岩。
这些特征表明，浅色岩是幔源超基性岩浆晚期结晶分异的产物。
All of these characteristics are in contrast with their host rock_serpentinite and show that the leucocratic rocks were produced by crystallization differentiation of ultramafic magma.
该环境形成浅色、相对富颗粒的灰岩沉积。
Relatively grain-rich limestone with light-color formed in the environment.
在浅色白云岩地层中富含炭化的黑色非叠层石生态系兰细菌白云岩。
In light colour dolostone abound with carbonification blackly non-stromatolite ecologic system cyanobacteria dolostone.
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