Bulletin

Bulletin

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About the Book
Excerpt from book: "Several weeks during the past summer were devoted to a field study of the Lockatong argillite of Hunterdon, Mercer and Somerset counties. The structures and field relations of this formation were carefully examined and materials were collected for chemical and microscopical investigation in the laboratory. The greatly extended use of this rock in all of the recent buildings of Princeton University was noted with much interest, and the extensive quarrying operations afforded considerable opportunify for studying the characters and structures of the formation. It is hoped that further investigation of the materials now in hand may throw light on the question of the real nature and origin of this peculiar rock." Stratigraphical Studies.?Dr. Twitchell has continued his studies of the Eocene deposits and their faunas as noted in the last Administrative Report, but owing to the press of other duties, has been able to give but comparatively little time to this line of investigation. Preparation of a new geologic folio in co-operation with the U. S. Geological Survey has necessitated additional field work by the State Geologist in the area covered by the Easton quadrangle. In particular, the relations of the Kittatinny limestone have been studied with a view to determining to what extent the subdivisions of this formation made in Eastern Pennsylvania are applicable to the formation in New Jersey. It is apparent that along the Delaware two members can be recognized where conditions for observation are favorable. Whether these subdivisions can be traced and mapped to the northeast remains to be determined. If so, another step will have been taken in working out the geologic history of northern New Jersey. LABORATORY WORK. The laboratory has continued in charge of R. B. Gage, Ch...
Book Details
ISBN-13: 9780217452144
Publisher: Rarebooksclub.com
Binding: Paperback
Language: English
Returnable: N
Spine Width: 11 mm
Width: 186 mm
ISBN-10: 0217452140
Publisher Date: 12 Oct 2012
Height: 242 mm
No of Pages: 206
Series Title: English
Weight: 377 gr
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