The geology of Charnwood Forest

Bennett, F.W.; Lowe, E.E.; Gregory, H.H.; Jones, Fábio Herbert

doi:10.1016/s0016-7878(28)80014-9

Cited by 4 publications

(3 citation statements)

References 9 publications

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“…A common link between both quarried areas is the average pole to joint plane orientation of J1 and J3 for the Bradgate quarries and J1, J3 and J4 for the Bluebell and Sheet Hedges quarries. These directions are of regional importance: they are coincident with the Ch' and L'' fracture graph orientations for Charnwood Forest presented by Bennett et al (1928), and they include major structures with NW-SE to WNW-ESE orientations such as the axis of the Charnwood Anticline, the local Charnian cleavage (i.e. Fig.…”

Section: Joint Patterns In the Scdmentioning

confidence: 63%

“…Also present in both quarried areas are NE-striking joints (J2, Bradgate quarries; J2 and J5 Bluebell and Sheet Hedges quarries), which are geometrically related to the crosscutting Phase 2 'escape' structures described above and are represented in the Ch" fracture set of Bennett et al (1928). The northerly-trending (J4) joint set of the Bradgate quarries is similar in orientation to A' of Bennett et al (1928), and to the orientation of the Phase 2 cross-fault on the eastern side of Groby Pool (Fig. 2).…”

Section: Joint Patterns In the Scdmentioning

confidence: 99%

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New information on Neoproterozoic-Cambrian geology and the Triassic unconformity around Groby, southern Charnwood Forest, UK

Scotney

Carney

Harwood³

2012

PYGS

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Summary Detailed investigations utilizing borehole drilling, geophysical techniques and revision mapping have elucidated the geological evolution of southern Charnwood Forest. This study confirms that the South Charnwood Diorite was emplaced in latest Neoproterozoic times and has a broadly concordant intrusive contact with underlying volcaniclastic strata of the Charnian Supergroup. Following erosion that unroofed the diorite, an Early Cambrian marine transgression deposited an unconformable covering of Brand Group strata. In end-Silurian times, the region experienced orogenic compression and folding along a dominant NW–WNW tectonic grain. ‘Phase 1’ structures with these orientations include the Charnwood Anticline and a transecting, penetrative cleavage that is mainly developed in the stratiform Charnian rocks. Further manifestations of this deformation were systems of NW-trending faults, the most important of which is the Groby Reverse Fault. This complex structure is described here for the first time; it features a narrow tectonic slice of Brand Group rocks, which was thrown down into the South Charnwood Diorite. The courses of younger, ‘Phase 2’ faults are also revealed by the present study; they are orthogonal to, and thus offset the earlier NW structures. During Permian times, the area was stripped of its Carboniferous cover, resulting in a rugged pre-Triassic topography. This study has shown that the South Charnwood Diorite was eroded into low-lying, NW-elongated, steep-sided domes (bornhardts). It has also revealed the configuration of an associated palaeo-valley system, which suggests that regional tilting associated with development of the syn-Triassic Hinckley Basin to the south-west of Charnwood Forest may have influenced drainage directions before burial of the hill-range beneath desert sediments of the Mercia Mudstone Group.

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Section: Joint Patterns In the Scdmentioning

confidence: 63%

Section: Joint Patterns In the Scdmentioning

confidence: 99%

New information on Neoproterozoic-Cambrian geology and the Triassic unconformity around Groby, southern Charnwood Forest, UK

Scotney

Carney

Harwood³

2012

PYGS

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“…The latest and most comprehensive account of the district is that of E. E. Lowe (1) 1 and at the end of the paper a useful bibliography of earlier publications is given. Additional notes are to be found in the pamphlet published for the visit of the Geologists' Association to Charnwood Forest in 1928, including a structural study of the Mountsorrel " granite " by F. Jones (2).…”

mentioning

confidence: 99%

The Mountsorrel Granodiorite and Associated Igneous Rocks

Taylor

1934

Geol. Mag.

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The igneous rocks of the Mountsorrel area, by reason of their accessibility and economic value, have attracted the attention of geologists since the middle of last century. The latest and most comprehensive account of the district is that of E. E. Lowe (1) and at the end of the paper a useful bibliography of earlier publications is given. Additional notes are to be found in the pamphlet published for the visit of the Geologists' Association to Charnwood Forest in 1928, including a structural study of the Mountsorrel “granite” by F. Jones (2).

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Field meeting in Charnwood Forest

Watts¹,

Gregory²

1937

Proceedings of the Geologists' Association

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The geology of Charnwood Forest

Cited by 4 publications

References 9 publications

New information on Neoproterozoic-Cambrian geology and the Triassic unconformity around Groby, southern Charnwood Forest, UK

New information on Neoproterozoic-Cambrian geology and the Triassic unconformity around Groby, southern Charnwood Forest, UK

The Mountsorrel Granodiorite and Associated Igneous Rocks

Field meeting in Charnwood Forest

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