The Geology of the South Wales Coal-Field ..
The Geology of the South Wales Coal-Field ..
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In our eReader you can find the full English version of the book. Read The Geology of the South Wales Coal-Field .. Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book The Geology of the South Wales Coal-Field ..
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C. Cantrill.
At the sources of the Neath and Senni rivers, four miles north-west of Ystradf elite, the Old Red beds, which normally dip a little east of south at a low angle, show signs of the oncoming of a disturbance.
In the Senni Valley a dip of 35° is shown on the map. A little farther west the beds show a synclinal arrangement ; there is, there- fore, a suggestion of a gentle anticline on the south followed by a syncline on the north. In the Nedd Fechan the Brownstones dip steeply to the s...outh and then swing round through south-west to west and north-west, and successively higher beds come in. Near the head of the stream, in the hollow between Fan Gihirych and Fan Fraith, red marls dip south-south-east at 25° as shown on the map ; and about ninety yards farther up red sandy marls dipping S. 35° W.
are exposed. No more rock in place is exposed, but immediately following the last section are some small blocks of dark limestone at the source of the stream. Then follows much red sandstone detritus, containing a large proportion of pebbly white grit.
What to read after The Geology of the South Wales Coal-Field ..?
You can find similar books in the "Read Also" column, or choose other free books by Geological Survey of Great Britain to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
C. Cantrill.
At the sources of the Neath and Senni rivers, four miles north-west of Ystradf elite, the Old Red beds, which normally dip a little east of south at a low angle, show signs of the oncoming of a disturbance.
In the Senni Valley a dip of 35° is shown on the map. A little farther west the beds show a synclinal arrangement ; there is, there- fore, a suggestion of a gentle anticline on the south followed by a syncline on the north. In the Nedd Fechan the Brownstones dip steeply to the s...outh and then swing round through south-west to west and north-west, and successively higher beds come in. Near the head of the stream, in the hollow between Fan Gihirych and Fan Fraith, red marls dip south-south-east at 25° as shown on the map ; and about ninety yards farther up red sandy marls dipping S. 35° W.
are exposed. No more rock in place is exposed, but immediately following the last section are some small blocks of dark limestone at the source of the stream. Then follows much red sandstone detritus, containing a large proportion of pebbly white grit.
What to read after The Geology of the South Wales Coal-Field ..?
You can find similar books in the "Read Also" column, or choose other free books by Geological Survey of Great Britain to read onlineMoreLess
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