Definition of Hardground. Meaning of Hardground. Synonyms of Hardground

- hardgrounds are surfaces of synsedimentarily cemented carbonate layers that have been exposed on the seafloor (Wilson and Palmer, 1992). A hardground...
- Upper Ordovician hardground, southeastern Indiana; see Wilson and Palmer (2001). Petroxestes borings in an Upper Ordovician hardground, southern Ohio;...
- preserves a rare Jur****ic hardground interpreted as a carbonate lagoon between oolitic shoals and a subtidal zone. The hardground community was dominated...
- cylindrical borings in calcareous substrates such as s****, carbonate hardgrounds, and limestones. Usually produced by worms of various types and sipunculids...
- In some areas, layers of soft, grey chalk known as a hardground complex can be seen. Hardgrounds are thought to reflect disruptions in the steady ac****ulation...
- evolution of bioerosion, the production of borings and s****ings in rocks, hardgrounds and s****. A scene from the early Cretaceous: a Woolungasaurus is attacked...
- Eocrinoid holdfasts on an Ordovician hardground in Utah...
- cementing occurs while the sediments are still under water, forming hardgrounds. Cementing accelerates after the retreat of the sea from the depositional...
- Trypanites borings in an Ordovician hardground, southeastern Indiana Petroxestes borings in an Ordovician hardground, southern Ohio Outcrop of Ordovician...
- carbonate hardgrounds, calcitic ooids, calcite cements, and the contemporaneous dissolution of aragonite s**** in shallow warm seas. Hardgrounds were very...