https://gamesmartz.com/legacy-definitions/5023
Photic Zone Definition & Image - GameSmartz
The upper ocean with sunlight. Photic zone. The photic zone is the top layer of the ocean where sunlight can penetrate, allowing photosynthesis to occur.
photic zonedefinitionimage
https://bibliographie.uni-tuebingen.de/xmlui/handle/10900/94779
Oxic Fe(III) reduction could have generated Fe(II) in the photic zone of Precambrian seawater