Wenlockn.
/ˈwɛnlɒk/ Wenlock formation n. (also Wenlock group) a formation of Upper Silurian age, typically developed near Wenlock. In modern use, the name of the middle of three divisions of the Silurian, lying below the Ludlovian and above the Valentian (Llandoverian); used attributively and absol.
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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
1834 Murchison in Proc. Geol. Soc. 2 15 The Ludlow and Wenlock formations appear in the same escarpment.
1890 Hardwicke's Sci.-gossip 26 247 Splendid examples of Wenlock fossils.
1946 L. D. Stamp Britain's Struct. & Scenery xii. 109 Though various divisions of the Silurian have been proposed the old three-fold one into: (3) Ludlow Series or Ludlovian; (2) Wenlock Series or Wenlockian; (1) Llandovery Series or Valentian; has stood the test of time and is most convenient.
1969 G. M. Bennison & A. E. Wright Geol. Hist. Brit. Isles vi. 116 A great deal of relatively recent work has been done on the limestone and shale shelf-sea facies of Wenlock and Ludlow age in the Welsh Borders.
1979 R. Anderton et al. Dynamic Stratigr. Brit. Isles vii. 96/1 Turbidity currents deposited sands in a separate turbidite zone during the Wenlock and lower Ludlow.
Derivatives
wenˈlockian adj. of or belonging to the Wenlock formation or series. Frequently absol.
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the world > the earth > structure of the earth > age or period > stratigraphic units > [adjective] > primary or Palaeozoic > Silurian > specific
Taconic1842
Ludlovian1855
wenlockian1855
Salopian1869
Downtonian1879
Valentian1879
Gotlandian1909
Salinan1909
1855 J. Phillips Man. Geol. 104 The genera being mostly Wenlockian and Ludlovian.
1946 L. D. Stamp Britain's Struct. & Scenery xii. 109 Though various divisions of the Silurian have been proposed the old three-fold one into: (3) Ludlow Series or Ludlovian; (2) Wenlock Series or Wenlockian; (1) Llandovery Series or Valentian; has stood the test of time and is most convenient.
1969 G. M. Bennison & A. E. Wright Geol. Hist. Brit. Isles vi. 124 The thickness of the Wenlockian strata may amount to about 25,000 feet.
1974 Encycl. Brit. Macropædia XVI. 774/2 The Llandoverian..saw the beginning of a sharp distinction between basin graptolitic shale facies and calcareous and..sandy shelf facies. This distinction was well marked in the Wenlockian.
Wenlock limestone n.
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the world > the earth > structure of the earth > constituent materials > rock > sedimentary rock > [noun] > limestone > others
lias1404
stone marrow1681
stone marl1682
saint's head stone1763
Kentish rag1769
watericle1776
kankar1793
Cotham1816
mountain limestone1817
tosca1818
cornstone1819
burr1829
coral-limestone1831
scar-limestone1831
Wenlock limestone1834
bavin1839
curf1839
Solenhofen slate1841
Beer stone1871
miliolite limestone1872
Clipsham1877
reef limestone1884
Hopton wood1888
thermo-calcite1888
Kilkenny marble1930
micrite1959
1834 Murchison in Proc. Geol. Soc. 2 14 The shale beneath the Wenlock limestone.
Wenlock shale n.
ΘΚΠ
the world > the earth > structure of the earth > constituent materials > rock > sedimentary rock > [noun] > shale > others
till1672
bass1686
bat1686
blue metal1699
scallop slate1711
black shale1730
shale-shiver1794
shale1825
till-stonec1830
Wenlock shale1834
famp1836
Boghead1858
oil shale1866
paper shale1874
symon1881
paste-rock1882
slasto1953
1834 Murchison in Proc. Geol. Soc. 2 14 The lower part of this formation is termed the ‘Wenlock shale’.
Wenlock slate n.
ΚΠ
1843 W. Humble Dict. Geol. Wenlock slate. Called also Wenlock shale.
This entry has not yet been fully updated (first published 1926; most recently modified version published online September 2018).
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n.1834