Marsh-Billings-Rockefeller National Historical Park
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National Park Service U.S. Department of the Interior Natural Resource Stewardship and Science Marsh-Billings-Rockefeller National Historical Park Geologic Resources Inventory Report Natural Resource Report NPS/NRSS/GRD/NRR—2011/454 z ON THE COVER The moon rises over the hilly and wooded landscape surrounding the park and town of Woodstock. THIS PAGE Streams flow from The Pogue, a man made pond tucked into the hills of the park’s Mount Tom Forest. Fed by natural springs, this pond is one of the centerpieces of the park. Rocks in the park were deposited in and near ancient ocean basins and subsequently deformed during Appalachian mountain-building. National Park Service photographs by Ed Sharron (Marsh-Billing Rockefeller NHP). Marsh-Billings-Rockefeller National Historical Park Geologic Resources Inventory Report Natural Resource Report NPS/NRSS/GRD/NRR—2011/454 National Park Service Geologic Resources Division PO Box 25287 Denver, CO 80225 September 2011 U.S. Department of the Interior National Park Service Natural Resource Stewardship and Science Fort Collins, Colorado The National Park Service, Natural Resource Stewardship and Science office in Fort Collins, Colorado publishes a range of reports that address natural resource topics of interest and applicability to a broad audience in the National Park Service and others in natural resource management, including scientists, conservation and environmental constituencies, and the public. The Natural Resource Report Series is used to disseminate high-priority, current natural resource management information with managerial application. The series targets a general, diverse audience, and may contain NPS policy considerations or address sensitive issues of management applicability. All manuscripts in the series receive the appropriate level of peer review to ensure that the information is scientifically credible, technically accurate, appropriately written for the intended audience, and designed and published in a professional manner. This report received informal peer review by subject-matter experts who were not directly involved in the collection, analysis, or reporting of the data. Views, statements, findings, conclusions, recommendations, and data in this report do not necessarily reflect views and policies of the National Park Service, U.S. Department of the Interior. Mention of trade names or commercial products does not constitute endorsement or recommendation for use by the U.S. Government. Printed copies of this report are produced in a limited quantity and they are only available as long as the supply lasts. This report is available from the Geologic Resources Inventory website (http://www.nature.nps.gov/geology/inventory/gre_publications.cfm) and the Natural Resource Publications Management website (http://www.nature.nps.gov/publications/nrpm/). Please cite this publication as: Thornberry-Ehrlich, T. 2011. Marsh-Billings-Rockefeller National Historical Park: geologic resources inventory report. Natural Resource Report NPS/NRSS/GRD/NRR— 2011/454. National Park Service, Fort Collins, Colorado. NPS 456/110526, September 2011 ii NPS Geologic Resources Division Contents List of Figures ................................................................................................................ iv Executive Summary ....................................................................................................... v Acknowledgements ...................................................................................................... vi Credits ........................................................................................................................................................................ vi Introduction ................................................................................................................... 1 Purpose of the Geologic Resources Inventory ............................................................................................................... 1 Park Establishment and Setting .................................................................................................................................... 1 Geologic Setting .......................................................................................................................................................... 1 Geologic Issues .............................................................................................................. 7 Water Issues and Wetlands .......................................................................................................................................... 7 Disturbed Lands ........................................................................................................................................................... 8 Mass Wasting .............................................................................................................................................................. 8 Seismicity ..................................................................................................................................................................... 8 Geologic Features and Processes ................................................................................ 11 Glacial Features .......................................................................................................................................................... 11 The Pogue ................................................................................................................................................................. 11 Geology and History Connections ............................................................................................................................... 11 Ecological Relationships ............................................................................................................................................. 12 Groundwater Potential ............................................................................................................................................... 12 Paleontological Resources .......................................................................................................................................... 13 Karst Dissolution ........................................................................................................................................................ 14 Geologic History .......................................................................................................... 17 Proterozoic Eon (2,500–542 million years ago): Ancient Mountain Building and Iapetus Ocean Formation ................... 17 Paleozoic Era (542–251 million years ago): Building the Appalachians and Assembling Pangaea .................................. 17 Mesozoic Era (251–65.5 million years ago): Pangaea Separation, Atlantic Ocean Formation, and Appalachian Mountain Erosion ............................................................................................................................ 19 Cenozoic Era (the past 65.5 million years): Appalachian Mountain Erosion and Ice Age Glaciation .............................. 19 Geologic Map Data ...................................................................................................... 27 Geologic Maps ........................................................................................................................................................... 27 Source Maps .............................................................................................................................................................. 27 Geologic GIS Data ...................................................................................................................................................... 27 Geologic Map Overview ............................................................................................................................................. 28 Map Unit Properties Table .......................................................................................................................................... 28 Use Constraints .......................................................................................................................................................... 28 Geologic Map Overview Graphics .............................................................................. 29 Map Unit Properties Table .......................................................................................... 33 Glossary ........................................................................................................................ 35 Literature Cited ............................................................................................................ 41 Additional References ................................................................................................. 44 Geology of National Park Service Areas ...................................................................................................................... 44 Resource Management/Legislation Documents ........................................................................................................... 44 Geological Survey and Society Websites ..................................................................................................................... 44 Other Geology/Resource Management Tools .............................................................................................................