What divides the parietal lobe from the occipital lobe?

the sylvian fissures divide the parietal lobe from the temporal lobe.

central sulcus

The parietal is mainly involved in spatial reasoning and sense, when you have to mentally rotate an object you are using this area. The occipital is involved in visual processing

The frontal, parietal, occipital, and temporal lobes are each part of the brain. Each area controls specific body functions, as well as the brain stem and spinal cord, all within the nervous system....

The parietal lobe contains the primary somatosensory cortex