Author Topic: Dudley Castle hill - Silurian reef limestone and fossils  (Read 11148 times)


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Dudley Castle hill - Silurian reef limestone and fossils
« on: January 30, 2011, 05:29:42 »
Dudley Castle hill - Silurian reef limestone and fossils

the Dudley Bug - trilobite

Dudley is now famous for the Dudly Doughnut, Castle and Zoo. Dudly is also famous for its Silurian reef limestone outcrops and its amazing amount of fossils found in the limestone at places like Wrens Nest.

Chain Coral (Halysites) found in the Dudley Silurian reef limestone

Dudley Castle Hill - Silurian reef limestone

Dudley Castle Hill is built on a Silurian reef limestone, that can be found in the area and around England and the UK. The shape of Dudley Castle Hill is interesting in that it is the elongate tear drop shape. Similar shaped limestone hills can be found on Malta. Mars also has elongated tear drop shaped hills.


Within the main mass of the Coal Measures are a number of isolated outcrops of older Silurian rock. These shallow water limestones and shales contain a wide range of marine fossils and form the famous outcrops at Wren’s Nest and Dudley Castle Hill. There are also a number of igneous intrusions into the Coal Measures. Much of the area has been mantled in thick deposits of boulder clay and sands and gravel deposited by ice sheets and meltwaters during the Ice Ages of the last two million years.
West Midlands |

Geology suggests that the earths strata formed over millions of years and that Dudley Castle Hill and other Wenlock Group limestone found in the area is due to folding etc. But is this true? Could limestone outcrops be the result of changes to the land or the land around it? Could they have happened much quicker than geologists believe? Do fossils show that perhaps the changes were nearly instantaneous?



The oldest rocks present in the area are of Silurian age (443 - 417 million years ago). These outcrop, at Dudley Castle Hill, Wren’s Nest Hill and Hurst Hill and also as an isolated block in east Walsall. Their presence here is due to folding and faulting of the rock succession which has led to the main Silurian succession of the Welsh Borders, being brought to the surface in this area.

The Silurian rocks of the West Midlands and the Welsh Borders have traditionally been split into three units on the basis of the type of rocks and the fossils they contain. In the West Midlands, rocks of the Middle Silurian Wenlock Series are represented by the Wenlock or Dudley Limestone. This shallow marine limestone contains a rich and varied suite of fossils including corals, brachiopods, crinoids (sea-lilies) and trilobites. The succeeding shales seen at Dudley belong to the Lower Ludlow Shales of the Ludlow Series. Like the underlying limestone, the shales are richly fossiliferous and yield many types of brachiopods and trilobites.
West Midlands |

trilobite track - trace fossil

the image above shows the track made by a trilobite that was preserved. how could such a track be preserved? you have to remember that this had to take a very long time and in water/sea places.

the thing with fossils and especially fossil tracks/footprints is how was the shape preserved over that time and then how did they survive long enough to be preserved? it is suggested the fossilisation is a near instant process in an Electric Universe. this would help explain how animal tracks and footprints were preserved, it also gives a clue to what may have happened.

were animal tracks preserved in a natural process similar to how dentists harden your fillings? dentists use x-rays to quicken the setting process. could the Squatter Man and its Synchrotron radiation have been a possible cause?

Dudley Limestone - Wrens Nest

Has the material been transmuted or has the land around it been changed? Do you find outcrops, layers and veins of the Wenlock Group because of massive electrical discharges, flow of current etc?


Wenlock Group - The Woolhope beds consist mainly of shales which are generally calcareous and pass frequently into irregular nodular and lenticular limestone. In the Malvern Hills there is much shale at the base, and in places the limestone may be absent. These beds are best developed in Herefordshire; they appear also at May Hill in Gloucestershire and in Radnorshire.

The Wenlock Shales are pale or dark-grey shales which extend through Coalbrookdale in Shropshire, through Radnorshire into Carmarthenshire. They appear again southward in the Silurian patches in Gloucestershire, Herefordshire and Monmouthshire. They thicken from the south northward. The fossils are on the whole closely similar to those in the limestones above with the natural difference that corals are comparatively rare in the shales, while graptolites are abundant.

The Wenlock limestone occurs either as a series of thin limestones within shales or as thick massive beds; it is sometimes hard and crystalline and sometimes soft, earthy or concretionary. It is typically developed in Wenlock Edge, where it forms a striking feature for some 20 mi. It appears very well exposed in a sharp anticline at Dudley, whence it is sometimes called the Dudley limestone
Wenlock Group |

Dudley Castle Hill and the Limestone Walk

The Limestone Walk starts at the rear of the Dudley Castle Hill and you can see how flat the ground becomes, the Dudley Castle Hill rises out of the ground.

Wenlock rocks change character as the progress around the UK, gEUlogy would suggest that this is due to the local electromagnetic effects/events being different and so the physical form of the rocks change.

Dudley Zoo entrance

« Last Edit: January 30, 2011, 05:31:21 by electrobleme »