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Origin and Classification of the Greensands of New Jersey.[1]

Contents.

Introduction.

During the past two years the writer has been carrying on investigations upon the Cretaceous and Tertiary formations of New Jersey under the joint auspices of the State and National Geological Surveys. A preliminary study of the whole area was followed by the mapping, with the aid of others,[2] of three United States Geological Survey atlas sheets in the northern portion of the district, and more recently by the critcal examination of five type sections across the state. The results of the earlier investigations have just been published,[3] while the later work will appear in the next annual report of the State Geologist.

In an area which had received such full investigations by as competent a geologist as the late Professor Geo. H. Cook, for

  1. Read before the Geological Society of America, at Boston, December, 1893.
  2. The writer had associated with him as assistants Messrs. C. W. Coman, H. S. Gane and R. M. Bagg.
  3. Rept. of the State Geologist of N. J. for 1892, pp. 167-246.

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