North Cuba Basin in the Northwest of Cuba. The demarcation (line yellow line) Total oil composed of Jurassic system – Cretaceous surrounds the three assessed units (EU) and defined in this study. The thin black lines represent failures on the ocean floor; Rod and ball show side moved down.”width =”512 “height =” 377 “class =”size-full wp-image-74974″/ > figure 1. North Cuba Basin in the Northwest of Cuba. The demarcation (line yellow line) Total oil composed of Jurassic system – Cretaceous surrounds the three assessed units (EU) and defined in this study. The lines black fine represent failures in the floor Ocean; Rod and ball are the moved side facing down.