Multiple remagnetizations of lower Paleozoic limestones from the Taconics of Vermont
Scott Tucker; Dennis V. Kent
- Multiple remagnetizations of lower Paleozoic limestones from the Taconics of Vermont
Kent, Dennis V.
- Lamont-Doherty Earth Observatory
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- Geophysical Research Letters
- The natural remanent magnetizations in some upper Cambrian and middle Ordovician limestones from the Taconics of Vermont (âˆ¼44Â°N 287Â°E) are multicomponent and can be attributed to early Paleozoic, late Paleozoic and Cretaceousâ€early Tertiary remagnetizations. A northwesterly and up magnetization found at 2 sampling localities, characterized by maximum unblocking temperatures of about 350Â°C, has directions prior to tilt correction corresponding to Ordovician reference poles for North America and is likely to represent a Taconic remagnetization. A shallow, southerly magnetization found at a third locality, with unblocking temperatures that range to about 500Â°C, has directions corresponding to a Permian (Kiaman and Alleghenian) remagnetization. Common to all 3 sampling localities is a low (up to 300Â°C) unblocking temperature overprint similar in direction to Cretaceous to Paleocene reference poles.
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