(1) This section applies if a geothermal tenure states its area includes land within a block without including or excluding any particular sub-block.
(2) The reference to the block is a reference to all sub-blocks within the block to the extent they do not consist of excluded land or land in a restricted area.
(3) To remove any doubt, it is declared that if land within any of the sub-blocks ceases to be excluded land or land in a restricted area, the cessation itself does not cause the land to be within the geothermal tenure's area.