Northeastern Geology

Contents

Volume 7, Number 1, 1985

Boron, Gallium, Rubidium, and Vanadium as geochemical indicators of marine and freshwater depositional environments: Hamilton Group (Middle Devonian), Southeastern New York

(William H. Harris) 1

Tectonic implications of Rb-Sr ages of granitic plutons near Cameron’s Line in Western Connecticut

(Roddy V. Amenta and Douglas G. Mose) 11

Rb-Sr whole rock determination on parts of the Manhattan Schist and it’s bearing on allochthony in the Manhattan Prong, Southeastern New York

(Douglas G. Mose and Charles Merguerian) 20

Distribution and history of the freshwater lake in Block Island Sound, Rhode Island and New York, during the Late Wisconsinan

(Sally W. Needell and Ralph S. Lewis) 28

Flow direction of the Hampden Basalt in the Hartford Basin, Connecticut and Southern Massachusetts

(Karl J. Ellefsen and Paul L. Rydel) 33

Discriminant analyses of some sedimentary statistical parameters obtained from the Long Island Barrier Chain, New York, USA

(A.T. Williams and R.G. Scott) 37

Scanning electron microscope analyses of some Fire Island, New York, beach and dune sediments

(A.T. Williams, P. Morgan, and M.C. Thomas) 43

Mesozoic diabases from West-Central New Jersey: discussion

(Anthony R. Philpotts and David H. Burkett) 47

Mesozoic diabases from West-Central New Jersey: a reply

(Jonathon M. Husch) 50

Calendar 52