| Reference Type | Journal (article/letter/editorial) |
|---|
| Title | II.—On certain Affinities Between the Devonian Rocks of South Devon and the Metamorphic Schists |
|---|
| Journal | Geological Magazine |
|---|
| Year | 1892 (August) | Series:Volume | 3:9 |
|---|
| Issue | 8 |
|---|
| Publisher | Cambridge University Press (CUP) |
|---|
| DOI | doi:10.1017/s0016756800145947 |
|---|
| Generate Citation Formats |
|---|
| Mindat Ref. ID | 277549 | Long-form Identifier | mindat:1:5:277549:8 |
|---|
|
| GUID | 0 |
|---|
| Full Reference | (1892) II.—On certain Affinities Between the Devonian Rocks of South Devon and the Metamorphic Schists. Geological Magazine, S. 3 Vol. 9 (8) 341-348 doi:10.1017/s0016756800145947 |
|---|
| Plain Text | (1892) II.—On certain Affinities Between the Devonian Rocks of South Devon and the Metamorphic Schists. Geological Magazine, S. 3 Vol. 9 (8) 341-348 doi:10.1017/s0016756800145947 |
|---|
| In | (1892, August) Geological Magazine S. 3 Vol. 9 (8) Cambridge University Press (CUP) |
|---|
| Abstract/Notes | In the Devonian sandstones and grits of Torbay abundant quartz veins are occasionally developed, indicating a moderate amount of heat. Neither the quartz-grains nor occasional fragments of felspar are to any extent affected.At Dartmouth, on the raised-beach platform, quartz is largely developed together with a little felspar and chlorite, indicating sufficient heat to form or re-form these minerals. At Slapton Sands the grits are about the same as in Torbay: felspar granules remain angular and intact.Between Beesands village and Tinsey Head the quartz-grains occasionally show signs of incipient solution, as also do the tourmalines. In one slide (No. 5) the approach of schistosity seems to be heralded by minute roughly parallel cracks cemented by iron ores and a pale-green mica. Minute crystals of pyrites, some rectangular, are formed in the rock. At the Start, in rare cases, grains or remnants of grains of original granitic quartz can be detected in the schist. Tourmaline is partially dissolved with recrystallization. |
|---|
These are possibly similar items as determined by title/reference text matching only.
