A General Report On the Physiography of Maryland
A General Report On the Physiography of Maryland
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In our eReader you can find the full English version of the book. Read A General Report On the Physiography of Maryland 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 A General Report On the Physiography of Maryland
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170 A EEPORT ON THE PHYSIOGRAPHY OF MARYLAND plained by superimposition from the cover of Potomac clays and gravels.
Beyond the limits of the Middle Atlantic Slope one or two im- portant river studies have been executed which have some bearing on the Maryland problems. In 1890 E. S. Tarr' reported cases of streams in Texas which Avere superimposed from Cretaceous iipon Paleozoic rocks; and H. B. Kummel,' a year later, suggested that the eastward deflection of the Connecticut at Middletown, wher...e it leaves the yielding Triassic rocks and cuts a gorge in the crystallines, might be due to superimposition from the extended Cretaceous cover.
THE PROBLEM PRESENTED.
The observations of A. Keith, W J McGee, and others have shown that the gently rolling upland surface of the Piedmont Plateau is a continuation of the Schooley peneplain of N"ew Jersey and Penn- sylvania. The conditions of formation of a peneplain, or even of a district well advanced in topographic maturity, carry Avith them the expectation of finding the streams well adjusted to the underlying structure.
What to read after A General Report On the Physiography of Maryland?
You can find similar books in the "Read Also" column, or choose other free books by Cleveland Abbe to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
170 A EEPORT ON THE PHYSIOGRAPHY OF MARYLAND plained by superimposition from the cover of Potomac clays and gravels.
Beyond the limits of the Middle Atlantic Slope one or two im- portant river studies have been executed which have some bearing on the Maryland problems. In 1890 E. S. Tarr' reported cases of streams in Texas which Avere superimposed from Cretaceous iipon Paleozoic rocks; and H. B. Kummel,' a year later, suggested that the eastward deflection of the Connecticut at Middletown, wher...e it leaves the yielding Triassic rocks and cuts a gorge in the crystallines, might be due to superimposition from the extended Cretaceous cover.
THE PROBLEM PRESENTED.
The observations of A. Keith, W J McGee, and others have shown that the gently rolling upland surface of the Piedmont Plateau is a continuation of the Schooley peneplain of N"ew Jersey and Penn- sylvania. The conditions of formation of a peneplain, or even of a district well advanced in topographic maturity, carry Avith them the expectation of finding the streams well adjusted to the underlying structure.
What to read after A General Report On the Physiography of Maryland?
You can find similar books in the "Read Also" column, or choose other free books by Cleveland Abbe to read onlineMoreLess
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