Chesapeake Bay impact structure : development of "brim" sedimentation in a multilayered marine target /

The Chesapeake Bay impact structure is a well-documented example of a small group of multi-layer, marine-target impacts formed in continental shelves or beneath epeiric seas. New sedimentological and stratigraphical data and results, mainly from Chesapeake Bay brim cores (Watkins School, Langley and...

Full description

Bibliographic Details
Main Author: Dypvik, Henning (Author)
Format: Book
Published: Boulder, Colorado : Geological Society of America, [2018]
Series:Special papers (Geological Society of America) ; 537.
Table of Contents:
  • Abstract
  • Introduction
  • Chesapeake Bay impact structure: history of investigations
  • Early investigations
  • Discovery phase
  • Investigations in 1996-2004
  • Second core-drilling program and York-James seismic survey
  • International Continental Scientific Drilling Program and USGS Drilling and Geophysical Studies in the Central Crater
  • History of groundwater studies
  • Brim of the Chesapeake Bay impact structure
  • Structural morphology of the Chesapeake Bay impact structure
  • Data sets
  • Pre-impact target materials
  • Sediments modified and (or) redeposited by the impact
  • Early postimpact sediments
  • Methods and terminology
  • Methods
  • Terminology
  • Core data
  • Watkins School core
  • Langley core
  • Bayside cores 1 and 2
  • Discussion: impact stages and processes in the brim
  • Lateral correlations and impact processes
  • Contact and compression stage
  • Excavation stage
  • Modification stage
  • Early postimpact sedimentation
  • Discussion: comparison to selected marine-target impact structures
  • Overview
  • Montagnais
  • MjĂžlnir
  • Summary and conclusions
  • Acknowledgments
  • Appendix A: Dinoflagellate species in the Bayside cores
  • Appendix B: Biostratigraphic and paleoenvironmental interpretation of fossil pollen samples from gravel and sand unit (unit GS) and parautochthonous Potomac formation (unit PPF) in the USGS Bayside #2 core
  • References cited.