BGS mineralogy and petrology collection record

Sample number COLLNOPOS1; G4069;
Sample Donor Styles,M.T.
Rock name 'Original entry: Altered Andesitic-Basaltic Volcanic Rock In Contact With Carbonate Vein'
Stratigraphy Not entered
Comments Altered basaltic-andestic volcanc rock with mafic phenocrysts now clays and feruginous material in groundmass of numerous micophenocryts of feldspar in dark martix showing flow texture. Volcanic rock in contact with carbonate vein also some carbonatealteration of wall rock. Rock fragments from field just west of posbury Clump
Locality details Posbury, Devon
50k map sheet Not entered

View the geology near 'Not entered'

Map reference SX 08 09
Year collected Not entered 
Bore name Not applicable
Confidentiality No restrictions