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Merehead Quarry

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Journal Article
Published: 01 October 2015
Mineralogical Magazine (2015) 79 (5): 1203–1211.
...R. W. Turner; O. I. Siidra; M. S. Rumsey; Y. S. Polekhovsky; Y. L. Kretser; S. V. Krivovichev; J. Spratt; C. J. Stanley Abstract Yeomanite, Pb 2 O(OH)Cl, is a new Pb-oxychloride found in the manganese pod mineral assemblage at Merehead (Torr Works) Quarry, near Cranmore, Somerset, England...
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Journal Article
Published: 01 December 2006
Mineralogical Magazine (2006) 70 (6): 629–653.
... metals are shown to have been uninvolved in the process. © The Mineralogical Society 2006 T his paper presents a new theory for the formation of the mineralized Mn deposits at Merehead Quarry which accounts for all the features of the deposit that have been observed in the field, including...
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Journal Article
Published: 01 June 1998
Mineralogical Magazine (1998) 62 (3): 387–393.
Journal Article
Published: 01 March 1994
Mineralogical Magazine (1994) 58 (1): 59–68.
Journal Article
Published: 01 October 2018
Mineralogical Magazine (2018) 82 (5): 1211–1224.
...Oleg I. Siidra; Diana O. Nekrasova; Rick Turner; Anatoly N. Zaitsev; Nikita V. Chukanov; Yury S. Polekhovsky; John Spratt; Mike S. Rumsey ABSTRACT The new mineral somersetite, has been found at Torr Works (‘Merehead quarry’) in Somerset, England, United Kingdom. Somersetite is green or white...
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Journal Article
Published: 01 October 2012
Mineralogical Magazine (2012) 76 (5): 1247–1255.
... at Merehead quarry, Somerset, England. Rumseyite is tetragonal, I 4/ mmm , a = 4.065(1), c = 12.631(7) Å, V = 208.7(1) Å 3 , Z = 2. The mineral is translucent pale orange-brown with a white streak and vitreous lustre. It is brittle with perfect {100} cleavage; D calc = 7.71 g cm −3 (for the ideal formula, [Pb...
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Journal Article
Published: 01 February 2012
Mineralogical Magazine (2012) 76 (1): 59–73.
...M. S. Rumsey; S. V. Krivovichev; O. I. Siidra; C. A. Kirk; C. J. Stanley; J. Spratt Abstract Rickturnerite, which has the ideal formula Pb 7 O 4 [Mg(OH) 4 ](OH)Cl 3 , is a new mineral from Torr Works (Merehead) quarry, near the village of Cranmore in Somerset, United Kingdom. It occurs as pale...
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Journal Article
Published: 01 June 2008
Mineralogical Magazine (2008) 72 (3): 793–798.
...O. I. Siidra; S. V. Krivovichev; R. W. Turner; M. S. Rumsey Abstract The crystal structure of chloroxiphite, Pb 3 CuO 2 (OH) 2 Cl 2 , from Merehead Quarry (monoclinic, P 2 1 /m , a = 6.6972(8), b = 5.7538(5), c = 10.4686(14) Å, β = 97.747(10)°, V = 399.72(8) Å 3 ) has been refined to R 1 = 0.041...
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Journal Article
Published: 01 October 2000
American Mineralogist (2000) 85 (10): 1526–1533.
...Mark D. Welch; Mark A. Cooper; Frank C. Hawthorne; Alan J. Criddle Abstract Symesite, Pb 10 (SO 4 ) O 7 Cl 4 (H 2 O), is a Pb sheet mineral found in the oxidized zone of a Carboniferous Mn-Pb-Cu deposit at Merehead Quarry, Somerset. It occurs as pink crystal blebs up to 2 mm long and as pink...
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IR spectra of ( a ) somersetite; ( b ) plumbonacrite from Långban, Sweden a...
Published: 01 October 2018
Fig. 3. IR spectra of ( a ) somersetite; ( b ) plumbonacrite from Långban, Sweden and ( c ) hydrocerussite from Merehead quarry. England.
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Map of the Mendips region after Din  et al.  ( 1986 ), highlighting the pos...
Published: 01 February 2012
F ig . 1. Map of the Mendips region after Din et al. ( 1986 ), highlighting the position of Merehead quarry (M in red) in relation to other deposits in the area, with an inset showing the location in the UK.
Image
IR spectra of NaPb 5 (CO 3 ) 4 (OH) 3  from Lavrion ( a ) and hydrocerussit...
Published: 01 August 2018
Fig. 2. IR spectra of NaPb 5 (CO 3 ) 4 (OH) 3 from Lavrion ( a ) and hydrocerussite from the Merehead quarry, Somerset, England ( b ). IR spectrum of synthetic abellaite analogue ( c ) drawn based on data of Belokoneva et al . ( 2002 ).
Journal Article
Published: 01 June 2016
Mineralogical Magazine (2016) 80 (4): 701–704.
.... , Francis , J.G. and Jones , G.C. ( 1994 ) Parkinsonite, a new lead molybdenum oxychloride mineral from the Merehead Quarry, Mendip Hills, Somerset . Mineralogical Magazine , 58 , 59 – 68 . Welch , M.D. , Criddle , A.J. and Symes , R.F. ( 1998 ) Mereheadite, Pb 2 O(OH)Cl...
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Journal Article
Published: 01 September 1996
Journal of the Geological Society (1996) 153 (5): 673–676.
... zo7Pb4Pb values range from 15.601 to 15.688 (0.55%) and 211XPb/z04Pb values range from 38.257 to38.565 (0.80 The Z'KPb/z"4Pb data show significant variations forming three distinct clusters that relate to geographical areas. The least radiogenic cluster relates to Merehead Quarry, the intermediate cluster...
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Comparative data of NaPb 5 (CO 3 ) 4 (OH) 3 , hydrocerussite and abellaite....
Published: 01 August 2018
.)     6.84 (calc.) *   Sources This work * Siidra et al . ( 2018 a ) ** Palache et al . ( 1951 ); Anthony et al . ( 2003 ) Ibáñez-Insa et al . ( 2017 ) * Hydrocerussite from the Merehead quarry, Somerset, England; ** Palache et al . ( 1951 ) and Anthony et al . ( 2003 ) do
Image
Comparative data of NaPb 5 (CO 3 ) 4 (OH) 3 , hydrocerussite and abellaite....
Published: 01 August 2018
.)     6.84 (calc.) *   Sources This work * Siidra et al . ( 2018 a ) ** Palache et al . ( 1951 ); Anthony et al . ( 2003 ) Ibáñez-Insa et al . ( 2017 ) * Hydrocerussite from the Merehead quarry, Somerset, England; ** Palache et al . ( 1951 ) and Anthony et al . ( 2003 ) do
Journal Article
Published: 01 August 2018
Mineralogical Magazine (2018) 82 (4): 809–819.
...Fig. 2. IR spectra of NaPb 5 (CO 3 ) 4 (OH) 3 from Lavrion ( a ) and hydrocerussite from the Merehead quarry, Somerset, England ( b ). IR spectrum of synthetic abellaite analogue ( c ) drawn based on data of Belokoneva et al . ( 2002 ). ...
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Journal Article
Published: 01 February 2009
Mineralogical Magazine (2009) 73 (1): 103–117.
... al . ( 1998 ) as a new mineral from Merehead Quarry, near Cranmore, Somerset, England, that was formed as a result of the interaction of brines with primary sulphides ( Symes and Embrey, 1977 ). Turner ( 2006 ) showed that the formation mechanism was more complex, involving the co-precipitation...
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Important events in the creation of the <span class="search-highlight">Merehead</span> Mn deposits: ( a ) calcite...
Published: 01 December 2006
F ig . 6. Important events in the creation of the Merehead Mn deposits: ( a ) calcite-galena veins emplaced; ( b ) regional uplift and erosion; ( c ) seawater and dissolved metals ingress; ( d ) hydrothermal event; ( e ) deposition of Jurassic limestones; and ( f ) disconformity and Mn pods
Journal Article
Published: 01 November 2006
Proceedings of the Yorkshire Geological Society (2006) 56 (2): 151–154.
..., Shetland, but this remains to be substantiated ( Macpherson & Livingstone 1982 ). The rosettes of hydromagnesite on green serpentinite reported from Portsoy, Grampian Region, by Heddle (1901 ) are similarly doubtful. At Merehead Quarry, Somerset, hydromagnesite occurs as an alteration product...
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