A greenish kind of sandstone, often loosely consolidated.
- ‘The sample was taken from a thin limestone lens with phosphatic oolites within the phosphatic greensand.’
- ‘They lie on a fault line created by a seam of greensand, which runs for 200 miles from Lyme Regis to the Wash, taking in the edge of the Bowood Estate.’
- ‘Use additions of mineral-rich materials such as rock phosphate or greensand to tailor the nutrients in your compost to match the needs of your soil and plants.’
- ‘From that point upstream the sub-soil was composed of laminated greensand, that is, clay containing glauconite interspersed with discrete bands of fine-grained sand.’
- ‘Derived from the prehistoric deposits of marine creatures, greensand is good for loosening-up compacted soils.’
We take a look at several popular, though confusing, punctuation marks.