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Porthleven

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Journal Article
Published: 01 September 1989
Journal of the Geological Society (1989) 146 (5): 739–742.
...J. J. WILKINSON; R. R. W. KNIGHT Abstract Detailed structural and lithological mapping combined with a paly-nological study of Devonian sediments in the Porthleven area, have revealed that previous structural and stratigraphic interpretations are seriously in error. Palynomorphs recovered from...
Journal Article
Published: 01 March 1969
Geological Magazine (1969) 106 (2): 142–158.
Journal Article
Published: 01 September 1966
Geological Magazine (1966) 103 (5): 440–459.
Journal Article
Published: 01 July 1956
Geological Magazine (1956) 93 (4): 331–335.
...M. Stone; J. L. M. Lambert Abstract Investigation of the coastal section between Marazion and Porthleven, Cornwall, southwestern England, has shown complex minor recumbent folding and cleavage in the Mylor slates. It is concluded that the folding resulted from subhorizontal shearing stresses which...
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Map of the <span class="search-highlight">Porthleven</span> area showing the major lithologies and the vein sets ...
Published: 01 May 2000
Fig. 3. Map of the Porthleven area showing the major lithologies and the vein sets sampled (after Wilkinson et al. 1995). PL, Porthleven Lode; WR, Wheal Rose; WP, Wheal Penrose.
Journal Article
Published: 01 May 2000
Journal of the Geological Society (2000) 157 (3): 589–600.
...Fig. 3. Map of the Porthleven area showing the major lithologies and the vein sets sampled (after Wilkinson et al. 1995). PL, Porthleven Lode; WR, Wheal Rose; WP, Wheal Penrose. ...
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Isochores calculated from microthermometric data using the equations of  Zh...
Published: 01 May 2000
Fig. 11. Isochores calculated from microthermometric data using the equations of Zhang & Frantz (1987) for Porthleven and Menheniot mineralizing brines and the off‐shore intra‐basin and Palaeozoic‐hosted veins. Vertical lines indicate the range of pressure corrections necessary for the off
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Histograms of ( a ) eutectic melting; ( b ) last ice melting; ( c ) hydrate...
Published: 01 May 2000
Fig. 5. Histograms of ( a ) eutectic melting; ( b ) last ice melting; ( c ) hydrate melting and ( d ) homogenization temperatures for type 1 and 3 inclusions from the Porthleven crosscourses.
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Histograms of ( a ) eutectic melting, ( b ) last ice melting, ( c ) hydrate...
Published: 01 May 2000
Fig. 8. Histograms of ( a ) eutectic melting, ( b ) last ice melting, ( c ) hydrate melting and ( d ) homogenization temperatures for type 1 and 3 inclusions from Porthleven east–west veins.
Journal Article
Published: 01 January 1984
Journal of the Geological Society (1984) 141 (1): 87–95.
... Springer-Verlag 249 60 Smith M. A. P. Repeated folding between Hayle and Portreath Cornwall Proc Ussher Soc 1965 1 170 1 Stone M. Fold structures in the Mylor Beds, near Porthleven Geol Mag 1966 103 440 60 Stone M. Structure and petrology of the Tregonning...
Journal Article
Published: 01 August 1991
Journal of the Geological Society (1991) 148 (4): 731–736.
... 1990b 54 219 230 Wilkinson J. J. Knight R. W. Palynological evidence from the Porthleven area, south Cornwall: implications for Devonian stratigraphy and Hercynian structural evolution Journal of the Geological Society, London 1989 146 739 742 Willis-Richards J...
Journal Article
Published: 01 February 1988
Journal of the Geological Society (1988) 145 (1): 37–41.
... therefore be enriched in pegmatites in the same way as rubidium. This expectation turned out to be justified, as the following NH: contents were found in pegmatities from three localities: Knills Monument, St Ives (P129) NH: = 135 ppm Praa Sands, eastern end (P308) 163 ppm Megilligar Rocks, W of Porthleven...
Journal Article
Published: 01 September 1994
Journal of the Geological Society (1994) 151 (5): 795–802.
... Quarry depth 399 m Borehole Holmans Quarry depth 502.1 m Brannel Quarry 4 m from hanging wall contact Lansugle large quarry Highwood Roadside near Addicroft Mill Hingston Ouarry Hingston Quarry Pendarves United Downs Porthleven Porthleven Pendarves Wheal Jane Mine Borehole depth 150.99-151.19m Borehole...
Journal Article
Published: 01 February 2003
American Mineralogist (2003) 88 (2-3): 262–270.
... signatures. The quartz samples examined in this study were recovered from a series of low temperature, base metal mineralized veins, hosted by Lower Palaeozoic rocks from Porthleven, Cornwall, southwest England. Detailed description of the geologic setting, petrography, vein composition and isotopic...
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Journal Article
Published: 01 May 1984
Journal of the Geological Society (1984) 141 (3): 581–591.
... varieties cannot be demonstrated, although certain features may indicate their presence. The importance of an aplite-pegmatite complex as a roof facies to an intrusion of non-megacrystic lithium-mica granite (the Tregonning granite near Porthleven) has been recog- nized for some time (Stone 1960...
Journal Article
Published: 23 August 2019
Journal of the Geological Society (2019) 176 (6): 1107–1119.
... with their oxidation zones exist at Menheniot, East Wheal Rose, Newlyn, Mount's Bay, St. Agnes, Porthleven and Silver Valley ( Alderton 1993 ). In Shropshire the small lead-dominated orefield is mainly west of the Stiperstones Ridge ( Haggerty et al. 1996 ). In Somerset, part of the lead and zinc...
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Journal Article
Published: 01 August 1977
Journal of the Geological Society (1977) 133 (6): 573–591.
... granite DI-2 Lee Moor, Whitehill; sericitised muscovite granite Cligga Head granite CH-2 Greisen halo, 3 cm wide, about very weak quartz vein Sediments 6C12 Shale; Mylor beds I km east of Porthleven JT35 Sericitised shale adjacent to vein, Mulberry mine BT-8 Teignbridge mine; Bovey Beds; 23 m below...
Series: Geological Society, London, Special Publications
Published: 11 November 2019
DOI: 10.1144/SP470.19
EISBN: 9781786203878
... equivalent earlier ductile D 3 structures, and are compatible with progressive deformation and extensional exhumation. Fig. 4. Field photographs of examples of the main D 3 deformation styles from Porthleven Beach, south Cornwall. ( a ) A minor bedding-parallel ductile D 3 shear zone deforming...
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Series: Geological Society, London, Special Publications
Published: 15 March 2021
DOI: 10.1144/SP506-2019-194
EISBN: 9781786209931
... mainland. Hendriks chose two coast sections to cover the entire stratigraphical succession within the area: one on the west coast of the Meneage from Polurrian Cove northwards to Porthleven, as typical of the lower beds; and another on the east side of Gerrans Bay, north of Nare Head as typical...
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Series: Geological Society, London, Memoirs
Published: 01 January 2014
DOI: 10.1144/M40.5
EISBN: 9781862397002
..., Porthleven, Cornwall (pen for scale); ( e ) transport of limestone boulders by seaweed ( Laminaria ) following rough sea conditions, Isle of Portland, Dorset (clipboard for scale); ( f ) bioabrasion by grazers ( Patella spp.), solution, bioprotection of topographical high-points by barnacles (mainly...
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