Field Notebook: New Jersey, New York, Pennsylvania 1914
Page 17
Image from the Biodiversity Heritage Library. Contributed by Yale Peabody Museum of Natural History. | www.biodiversitylibrary.org
Transcription
the Lower Ordovician limestones along the Buskille to the contact with the Precambrian. The dearly bedded magnesian limestones have some sand and are interbedded with thin banded once a few grey limestone that are once a less in the form of intraformational conglomerates. And gyes also have thin bands of round grain sandstones and thin material may also fill in the sun cracks. Towards the bottom we saw a few gyes with crystals from out or much in the typical form as in banded crescentic layers of some lateral extent. Between the their banded layers some of the gyes are oolitic. All are once or twice altered diagenetically. Barrell thought that the alteration and cementation did not take place beneath a constant cover of water but rather under an alternate drying and wetting conditions. According to our creaking is due to aerial exposures under monsoon conditions. The intraformational