The Hudson Valley belt of graptolite shales and negative anomalies of gravity

Rudolf Ruedemann

doi:10.2475/ajs.242.7.391

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Ruedemann, R. (1944). The Hudson Valley belt of graptolite shales and negative anomalies of gravity. American Journal of Science, 242(7), 391–396. https://doi.org/10.2475/ajs.242.7.391

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The Hudson Valley Belt of Graptolite Shales and Negative Anomalies of Gravity