Trentonn.

/ˈtrɛntən/

Etymology: < the name of Trenton Falls, New York.

Geology.

A name given (attributive, or elliptical as n.) to a limestone formation exemplified at Trenton Falls, and hence to the group or series of Lower Silurian rocks to which it belongs.

ΘΚΠ

the world > the earth > structure of the earth > age or period > stratigraphic units > [noun] > primary or Palaeozoic > Silurian > specific

grauwacke1794

greywacke1805

Wenlock formation1834

Trenton1854

obolite grit1859

Salina1863

Downtonian1900

1854 R. I. Murchison Siluria xvi. 413 From the ‘Potsdam sandstone’..up to the slates and arenaceous schists over lying the Trenton limestone, the group so composed represents the Lower Silurian.

1873 J. W. Dawson Story Earth & Man iv. 59 The Trenton.

1885 C. Lyell Elem. Geol. (ed. 4) 445 The Hudson River Group, and the Trenton Limestone, agree palæontologically with the Caradoc or Bala Group.

This entry has not yet been fully updated (first published 1914; most recently modified version published online June 2021).

单词	trenton
释义	Trentonn. /ˈtrɛntən/ Etymology: < the name of Trenton Falls, New York. Geology. A name given (attributive, or elliptical as n.) to a limestone formation exemplified at Trenton Falls, and hence to the group or series of Lower Silurian rocks to which it belongs. ΘΚΠ the world > the earth > structure of the earth > age or period > stratigraphic units > [noun] > primary or Palaeozoic > Silurian > specific grauwacke1794 greywacke1805 Wenlock formation1834 Trenton1854 obolite grit1859 Salina1863 Downtonian1900 1854 R. I. Murchison Siluria xvi. 413 From the ‘Potsdam sandstone’..up to the slates and arenaceous schists over lying the Trenton limestone, the group so composed represents the Lower Silurian. 1873 J. W. Dawson Story Earth & Man iv. 59 The Trenton. 1885 C. Lyell Elem. Geol. (ed. 4) 445 The Hudson River Group, and the Trenton Limestone, agree palæontologically with the Caradoc or Bala Group. This entry has not yet been fully updated (first published 1914; most recently modified version published online June 2021). < n.1854
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