A Geological History of Manhattan Or New York Island Together With a Map of Th
A Geological History of Manhattan Or New York Island Together With a Map of Th
Issachar Cozzens
The book A Geological History of Manhattan Or New York Island Together With a Map of Th was written by author Issachar Cozzens Here you can read free online of A Geological History of Manhattan Or New York Island Together With a Map of Th book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is A Geological History of Manhattan Or New York Island Together With a Map of Th a good or bad book?
What reading level is A Geological History of Manhattan Or New York Island Together With a Map of Th book?
To quickly assess the difficulty of the text, read a short excerpt:
2. ) The locality of this rock is between the town of New- port and Fort Adams, near the Granite ; it is a black variety of nearly the same quality as the Serpentine of New York Island. 3d Talcose Slate. (See p late 6, fig. 3. ) This rock, may be seen at Fort Adams, in the area of A GEOLOGICAL HISTORY. 61 that fortification ; it is very similar to its brother rocks at Stoney Point; veins of Talc, Quartz and Carbonate of Iron run through this rock. 4th Graywacke. (See plate 6 9 jig. 4. ) There w...ere many rocks called Graywacke by the older Geologists, the one which I have retained this name for, is a slaty conglomerate of pebbles and sand, cemented together, by a silicious cement, and without fossils. There are four or more distinct varieties of this rock on this Island, the most curious of which, are seen at the bluff that separates Easton's beach from Sachuest, at the south end of the Island ; at this locality all the varieties may be seen, from the fine grain slaty sandstone or grit, to the coarse conglomerate ; at this locality also, one variety has pebbles of a somewhat ovate form, which lie all in one direction, that is, they are longer than broad and lie side by side, and do not cross each other.
User Reviews: