Топ-100 ⓘ Upper Greensand Formation. The Upper Greensand Formation is
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ⓘ Upper Greensand Formation. The Upper Greensand Formation is a Cretaceous formation of Albian to Cenomanian in age. It is found within the Wessex Basin and parts ..




Upper Greensand Formation
                                     

ⓘ Upper Greensand Formation

The Upper Greensand Formation is a Cretaceous formation of Albian to Cenomanian in age. It is found within the Wessex Basin and parts of the Weald Basin in southern England. It overlies the Gault Clay and underlies the Chalk Group. It varies in thickness from zero to 75 m. It is predominantly a glauconitic fine-grained sandstone, locally becoming silty.

                                     
  • distinct formations separated by the Gault Clay. The Upper Greensand was also once known as either the Malm or Malm Rock Of Western Sussex Both Upper and
  • Lower Greensand can usually be subdivided to formational levels with varying properties into the Atherfield Clay Formation the Hythe Formation the Sandgate
  • England, where it overlays the Lower Greensand formation and underlies the Upper Greensand Formation These represent different facies, with the sandier
  • comprises the Gault Formation informally traditionally the Gault Clay or Blue Marl and the overlying Upper Greensand Formation earlier known as the
  • The Greensand Ridge is an extensive, prominent, often wooded, mixed greensand sandstone escarpment in south - east England. It runs to and from the East
  • Group comprises claystones of the Gault Formation and sandstones of the overlying Upper Greensand Formation The Chalk Group consists of a sequence of
  • The Upper Greensand marks the southern edge of the Downs, being underlain by: The Gault Formation of stiff blue clay. The Lower Greensand Formation of
  • ago. The dome was formed of an upper layer of Chalk above subsequent layers of Upper Greensand Gault, Lower Greensand Weald Clay and the Hastings Beds
  • overlain, after a stratigraphic hiatus, by the Early Cretaceous Upper Greensand Formation There are restricted outcrops of Lias rocks on the west coast
  • million years ago. It divides into an earlier Gault Formation and a later Upper Greensand Formation These outcrop in a thin tract of country, typically
  • The Cambridge Greensand is a geological formation in England whose strata date back to the Cenomanian stage of the Late Cretaceous. It forms the transitional
                                     
  • Formation is associated with deposits of the Chalk Group, subsequent Palaeogene and Neogene strata, and occasionally Upper Greensand The formation is
  • Chalk Formation formerly part of Upper Chalk and the equivalent of Rowe Chalk Formation below Culver Chalk Formation formerly part of Upper Chalk
  • ago. The dome was formed of an upper layer of Chalk above subsequent layers of Upper Greensand Gault, Lower Greensand Weald Clay and the Hastings Beds
  • The Navesink Formation is a 66 to 70 mya greensand glauconitic marl and sand geological formation in New Jersey. It is known for its Cretaceous period
  • Lower Greensand Group and beyond this, and stratigraphically above it, lie the mudstones and sandstones of the Gault and Upper Greensand formations The
  • Limestone: Ste. Genevieve, Missouri, USA Upper Greensand Formation Weald, Sussex, Hampshire Holston Formation Holston River, Tennessee, USA Jacobsville
  • The Hibernian Greensands Group is a late Cretaceous lithostratigraphic group a sequence of rock strata in Northern Ireland. It is Cenomanian to Santonian
  • in Suffolk are the mudstones and sandstones of the Gault and Upper Greensand formations which are to be found only in the extreme northwest of the county
  • Riabhach Phosphatic Formation Lochaline White Sandstone Formation Morvern Greensand Formation The Clach Alasdair Conglomerate Member and the Laig Gorge
  • Group, the Hastings Beds, the Weald Clay, the Lower Greensand the Gault and the Upper Greensand The Wealden Group is overlain by the Chalk Group, which
  • genus Ornithocheirus with a review of the specimens from the Cambridge Greensand in the Sedgwick Museum, Cambridge Annals and Magazine of Natural History
  • environment. It forms an impermeable layer beneath the Greensand and Upper Coralline Limestone formations It is most visible in the northwest of Malta and

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