BGS mineralogy and petrology collection record

Sample number MR35400
Sample Donor Not entered
Rock name Tonalite. 'Original entry: Ferrohypersthene-Garnet-Biotite Tonalite'
Stratigraphy Not entered
Comments Ferrohypersthene-garnet-biotite tonalite, New Hampshire Magma SeriesRb/Sr age 402+/-5my,Collected by Dr Forbes Robertson:Lyons No:247-77
Locality details 1.25 miles S of Salisbury on Hy. 127, W central rec Penacook Quad, New Hampshire.,surface exposure,Lyons & Livingston 1977, Bull. G.S.A. 88:1808-1812. Rb/Sr age 402+/-5my. Spaulding Stage.,USA
50k map sheet Not entered
Map reference Not entered
Year collected 1981 
Bore name Not applicable
Confidentiality No restrictions