Task: Text Simplification
Input (English): in geology , when an igneous intrusion cuts across a formation of sedimentary rock , it can be determined that the igneous intrusion is younger than the sedimentary rock.
Output (English): in geology , when an igneous invasion cuts across a formation of coming from material that sinks in liquid rock , it can be decided or figured out that the igneous invasion is younger than the coming from material that sinks in liquid rock.