Sussex Marble

（重定向自Petworth Marble）

Sussex Marble is a fossiliferous freshwater limestone material which is prevalent in the Weald Clay of parts of Kent, East Sussex and West Sussex in southeast England. It is also called Petworth Marble, Bethersden Marble or Laughton Stone in relation to villages where it was quarried, and another alternative name is winklestone. It is referred to as "marble" as it polishes very well, although it is not a geologically described one as it has not been subject to metamorphosis. The matrix is made up of the shells of freshwater gastropods and viviparus winkles, similar to but larger than those making Purbeck Marble. The pale calcified remains of the shells are in a matrix of darker material. West Sussex has a good concentration of thin layers of Sussex Marble; beds typically measure no more than 1 foot (0.30 m) thick. There are often two beds—the lower formed of smaller-shelled gastropods than the upper—with a layer of calcareous clay between them.

词汇	Petworth Marble
分类	英语词汇英语翻译词典
释义	Petworth Marble 英语百科 Sussex Marble （重定向自Petworth Marble） Sussex Marble is a fossiliferous freshwater limestone material which is prevalent in the Weald Clay of parts of Kent, East Sussex and West Sussex in southeast England. It is also called Petworth Marble, Bethersden Marble or Laughton Stone in relation to villages where it was quarried, and another alternative name is winklestone. It is referred to as "marble" as it polishes very well, although it is not a geologically described one as it has not been subject to metamorphosis. The matrix is made up of the shells of freshwater gastropods and viviparus winkles, similar to but larger than those making Purbeck Marble. The pale calcified remains of the shells are in a matrix of darker material. West Sussex has a good concentration of thin layers of Sussex Marble; beds typically measure no more than 1 foot (0.30 m) thick. There are often two beds—the lower formed of smaller-shelled gastropods than the upper—with a layer of calcareous clay between them.
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