The Geology of Pennsylvania a Government Survey With a General View of the Geo
The Geology of Pennsylvania a Government Survey With a General View of the Geo
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Extremity the distance is 23 or 24 miles. This axis of the Half Fall Mountain, after crossing the Susquehanna eastwardly, is seen ranging in the Ponent rocks through the centre of Armstrong's Valley, and into the cove or nook between the Short and Beriy's Mountains, thence through the knob of the latter mountain and out into the Umbral red shales of Williams's Valley; and crossing the head of this, it outcrops in the mountain barrier of the Swatara Coal-field, and dies out finally in the coal- ...field towards the Schuylkill. Its total length is therefore not less than 60 miles.
ELEVENTH ANTICLINAL Axis. The eleventh axis is three or four miles in length. It lies one-third of a mile S. E. Of the preceding. It originates about three-fourths of a mile E. Of Elliottsburg, in the neighbourhood of Perry Furnace Ore Bank, and terminates K of Loystown in the Surgent shales.
TWELFTH ANTICLINAL Axis. This is about one-third of a mile S. E. Of the preceding axis, and parallel to it. It originates and dies away nearly opposite the ends of the other.
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To quickly assess the difficulty of the text, read a short excerpt:
Extremity the distance is 23 or 24 miles. This axis of the Half Fall Mountain, after crossing the Susquehanna eastwardly, is seen ranging in the Ponent rocks through the centre of Armstrong's Valley, and into the cove or nook between the Short and Beriy's Mountains, thence through the knob of the latter mountain and out into the Umbral red shales of Williams's Valley; and crossing the head of this, it outcrops in the mountain barrier of the Swatara Coal-field, and dies out finally in the coal- ...field towards the Schuylkill. Its total length is therefore not less than 60 miles.
ELEVENTH ANTICLINAL Axis. The eleventh axis is three or four miles in length. It lies one-third of a mile S. E. Of the preceding. It originates about three-fourths of a mile E. Of Elliottsburg, in the neighbourhood of Perry Furnace Ore Bank, and terminates K of Loystown in the Surgent shales.
TWELFTH ANTICLINAL Axis. This is about one-third of a mile S. E. Of the preceding axis, and parallel to it. It originates and dies away nearly opposite the ends of the other.
What to read after The Geology of Pennsylvania a Government Survey With a General View of the Geo?
You can find similar books in the "Read Also" column, or choose other free books by Pennsylvania State Geologist 1836 1841 to read onlineMoreLess
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