Boon's Quarry
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Condition (Natural England)
| Unit | Feature | Condition | Area (ha) | Assessed |
|---|---|---|---|---|
| SP329946 | — | Favourable | 0.82 | 2010-02-26 |
Geology & landscape
Geological Period: Cambrian, Precambrian
Landscape processes: Volcanic / Igneous
Description
Area, 0.7 ha. 1.7 ac. Description This is a classic site which displays deeply weathered Precambrian Caldecote Volcanic Formation overlain unconformably by the conglomerates and sandstones of the lowest unit Park Hill Member of the late Precambrian to early Cambrian Hartshill Formation. This is the type locality for and most instructive section through, this member. These sediments display a wide variety of sedimentary structures, illustrating deposition in a shallow marine environment. This deposition occurred immediately after the submergence of the Precambrian landmass. The break in sedimentation between the Precambrian and Cambrian sequences is represented by this unconformity. Several types of trace fossil also occur;t hese constitute the earliest, commonly found, traces of animal life in the British Isles. The sequence here is comparable with that seen in northern Norway and the Baltic area.