Answer: to me personally I think They would become igneous rocks
Explanation: 
If originally, sedimentary rocks are exposed to energy from the sun, no changes will occur to them.
- The temperature of the sun does not change the materials of the earth substantially. 
 - There is a very significant effect of the heat from the interior on rocks, especially sedimentary rocks. 
 - Heat can hit a whopping 6000 ° C from the inside, which is more than enough to cause a metamorphic shift in a rock in the body. 
 - Actually, the igneous rock will be formed from the sedimentary rock at this temperature.