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Merlin Cavern

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Series: Geological Society, London, Special Publications
Published: 01 January 2016
DOI: 10.1144/SP417.3
EISBN: 9781862397125
... and Merlin Cavern, this chapter sets out evidence that 300 years of open access has resulted in significant disturbance to the features of geological interest. In particular, the integrity of the overall site for scientific research was affected by historical removal of speleothem formations long before...
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Journal Article
Published: 01 September 1988
Journal of the Geological Society (1988) 145 (5): 807.
... the interpretation of outcrops at one locality, Gravel Caverns where interference of two sets of folds and cleavages is J. R. A ndrews , A. J. B arker & C. F. P amplin , Department of Geology, The University, Southampton, S09 5NH, UK. T. J. C hapman , Merlin Geophysical, Woking, GU215BX, UK. R...
Journal Article
Published: 01 September 1988
Journal of the Geological Society (1988) 145 (5): 801–807.
...E. B. SELWOOD; J. M. THOMAS Abstract The Gravel Caverns section, New Polzeath, north Cornwall, shows clear evidence of multiphase deformation. Tight F1 folds with axial planar S1 slaty cleavage are reported for the first time. These are deformed by north-verging F2 folds with a south-dipping spaced...
Journal Article
Journal: SEG Discovery
Published: 01 April 2023
SEG Discovery (2023) (133): 1–76.
... Spacing Term Extremely close Very close Close Medium Wide Very wide Spacing (mm) <20 20 60 60 200 200 600 600 2,000 >2,000 Table 7. Terms for Defect Aperture Term Tight Very narrow Narrow Moderately narrow Moderately wide Wide Very wide Cavernous Aperture (mm) 0 0 6 6 20 20 60 60 200 200 600 600 2,000...
Journal Article
Journal: SEG Discovery
Published: 01 October 1996
SEG Discovery (1996) (27): 1–44.
..., R.T., and Criss, R.E., 1986, Isotopic exchange in open and closed systems, Qlng, H.R., and Mountjoy, E. W., 1994, Origin of dissolution vugs, caverns. and in Valley, J. W., Taylor, H. P., Jr., and O'Neil, J. R., eds., Stable Isotopes in High breccias in the Middle DevonianPresqu'ile Barrier, host...
Series: Geological Society, London, Special Publications
Published: 01 January 2018
DOI: 10.1144/SP466.5
EISBN: 9781786203786
... Butte Formation is negligible in the Kaibab Plateau region. The overlying Redwall Formation forms stark red cliffs stained by iron oxide from the overlying Supai Group. The Redwall is up to 250 m thick and consists predominantly of limestone ( Beus 1990 a ). Large cavern development occurs throughout...
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